Title of the invention: heat-resistant coating composition, heat-resistant coating, base material with heat-resistant coating, and method for manufacturing the same.
Technical field
[0001]
One embodiment of the present invention relates to a heat-resistant coating composition, a heat-resistant coating, a base material with a heat-resistant coating, or a method for producing the same.
Background technology
[0002]
In the piping of plant structures, etc., heat dissipation to the outside air is often installed to prevent heat absorption from the outside air, and to suppress the prevention of heat absorption, and to install a heat insulating material in the piping steel pipe)). However, the above-mentioned heat insulating material warming material warming material warming material warming material steel (example: carbon steel, low alloy steel) Rainwater that has invaded the gap between the pipe and the rainwater. Formation Forming, under-heat insulating material Corrosion cui :: corrosion under insulation insulation insulation insulation insulation may occur. The cui is caused by the formation of a battery on the surface of the steel pipe due to the water film described above, which causes local local corrosion and erosion. .. Its corrosion rate is outdoors, atmospheric, atmospheric, atmospheric, atmospheric, atmospheric.
[0003]
In addition, the above-mentioned cui has a corroded and eroded part under the heat insulating material (surrounded by the heat insulating material), so that the moisture that has invaded frequently stays easily and the state is maintained for a long period of time. Condition Condition Condition Condition Condition Condition, the piping may be exposed to high temperatures, which promotes the progress of oxidation reaction corrosion. Also, the plant material is installed in a beach area rich in sea salt particles that can be a corrosion factor. However, because of the fact that the sea salt particles promote the progress of corrosion, it is also a problem that the above-mentioned corrosion erosion is likely to be serious.
[0004]
Therefore, for the purpose of preventing corrosion, etc. as described above, the outer surface of the plant structure, etc. is provided with an anticorrosion coating coating (coating) on the piping. .. This anticorrosion coating is under the heat insulating material, under the heat insulating material, under the heat insulating material, under the heat insulating material, and for the purpose of preventing corrosion, etc. similar to the above, even the part where the outer surface of the pipe is not applied. Also provided. In this way, the outer surface of the piping, especially the part that is not heat-retained, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part From the viewpoint of its design, etc., the film is a silver anticorrosion coating (metallic coating coating is preferred and used). Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
[0005]
In addition, the piping used for plant structures, etc. is exposed to various environmental environments depending on the operating conditions such as those, so the temperature required for the anticorrosion coating (heat resistant coating coating) on the piping is slightly higher. Slightly heated Cooling cycle conditions are also widespread, for example, a wide range of temperatures ranging from -198 ° C to above ° C. Tolerance may be required. Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
[0006]
As a composition that can form metallic with heat resistance and anticorrosion, the patented literature is, Polysiloxane, Alkyl Alkyl Alkyl Acid, Talk, Coated Coated Composition with Pieces Disclosed and Disclosure.
Prior art literature
Patent documents
[0007]
Patent Document 1: Japanese Patent Application Laid-Open No. 2009-522388
Outline of the invention
Problems to be solved by the invention
[0008]
Aluminum pigments are usually used for the paint composition that forms a metallic coating film, but the person has been keenly aware that the paint coating composition composition that forms a metallic coating film is an anticorrosion anticorrosion coating. Anticorrosion It was found that there are cases where anticorrosion is not sufficient. .. Depending on the type and type of ((metallic coating)) on the piping, it may not be possible to sufficiently heat and cure it. Turned out to be inadequate.
[0009]
When a heat-resistant coating is formed on each member such as steel pipes, heating and drying (baking) is possible, but it is manufactured, manufactured, and manufactured by increasing the number of processes and using energy for heating and heating. Manufacture Manufacture Manufacture will increase. Therefore, at room temperature 55 to 40)) A coating composition that can form a coating film by drying, and that can achieve a heat-resistant and heat-resistant coating film with sufficient performance such as corrosion resistance, which is required, is sought and sought. ..
[0010]
In addition, the coating film on the outer surface of structures that can be exposed to ultra-high temperatures of 500 ° C or higher has a film thickness of 100 100 100 or higher. The heat-resistant coating film has a high temperature and temperature. Temperature Temperature Temperature Temperature Temperature Temperature Temperature Temperature The repeated changes in temperature cause swelling and cracking. More specifically, when the temperature of the material is raised to a high temperature, the residual solvent in the product is volatilized and volatilized, and the material is composed of the material. In addition, the inside of the coating film may increase due to the reaction / decomposition of the silicone resin component. Of these, especially when applied to thick films, the thickness of the heat-resistant coatings from traditional silicone-silicone heat-resistant paints is usually less than 80 80 80 80 80. Therefore, it was difficult to make the painting specifications of 100 100 or more.
However, in the piping of plant structures, etc., it has become a big problem of maintenance and management, and it is not possible to maintain long-term corrosion protection against the severe corrosive environment if it is less than 80 80 80 or less than 80 80 as mentioned above. It turned out.
[0011]
One embodiment of the present invention exhibits excellent properties even if it does not form a coating film, and has sufficient heat resistance, anticorrosion and anticorrosion properties even at a wide range of temperatures under high temperature. Provided is a heat-resistant coating composition capable of forming a heat-resistant coating film (metallic coating film) capable of maintaining the above.
Means to solve the problem
[0012]
According to the following configuration example, it was found that the above-mentioned problems could be solved, and the present invention was completed.
.. .. The composition of the invention is that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is, that it is. Is, is, is, is, is, is, is, is, is, is, is, is, is, is, is, is, is, is.
[0013]
<1> Anti-rust (including (c), heat-resistant coating composition containing siloxane-based binder (a ,, aluminum powder ()) and phosphorus-based compound.
<22> Anti-rust pigment (((((, but further contains zinc phosphate-based compound) is contained.
[0014]
<3> The heat-resistant coating composition according to <1> or <2>, further containing a curing accelerator (D).
[0015]
<4> Any of <1> to <3>, which has a pigment volume concentration (PVC) of 25 to 55%.
[0016]
<5> <1> to <>> The heat-resistant paint composition is formed and the heat-resistant heat-resistant coating film is described in any of the above.
Described in <6 6> and <>>. Heat-resistant coating film including heat-resistant and heat-resistant coating film coating film coating film coating film coating film base material.
<7> Manufacture of heat-resistant base material, including the following steps 1 1] and 2 2]. ..
[] Base material The process of applying the heat-resistant, heat-resistant, heat-resistant, heat-resistant composition described in any of <1 to <44 to the base material.
[2] A technique for forming a heat-resistant coating film by drying the painted heat-resistant coating composition.
Effect of the invention
[0017]
According to one embodiment of the present invention, it exhibits excellent properties without heating when forming a coating film, and has sufficient heat resistance even at a wide range of temperatures including under high temperature and high temperature (: 500 500 ° C). It is possible to provide a heat-resistant heat-resistant composition capable of forming a heat-resistant heat-resistant (metallic coating film) capable of having anticorrosion properties and adhesion to a base material. Can be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able to be able Can be can can be can be can
A brief description of the drawing
[0018]
[Fig. 1] Fig. 1 is a schematic plan view of a schematic plan view of a test piece containing a scrib used for evaluation of anticorrosion property in an example.
Embodiment for carrying out the invention
[0019]
≪ Heat resistant paint composition ≫
One form of the present invention Heat-resistant composition composition (hereinafter referred to simply as "composition composition"), siloxane binder (a), aluminum powder (bb), and phosphorus-lin-lin-lin-lin-lin-based. Contains rust-preventive pigment (c) containing a compound.
This composition is a metallic paint composition containing aluminum in order to perform (a) and c) together with b) above, and it is sufficient to form a coating film by drying. It is possible to obtain a heat-resistant and heat-resistant coating film that has properties, and according to this composition,A coating film that has a dry film thickness of 100 or more and is thick and can maintain anticorrosion and adhesion to the substrate even after being exposed to a high temperature environment exceeding 500 ° C ° C ° C ° C ° C ° C. can. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
[0020]
In addition, according to this composition, in particular, stainless steel (:: sus304 sus304 sus304 sus304), which has a large linear expansion coefficient as carbon steel and is exposed to the above high temperatures. sus304 sus304 sus304 sus316l etc.) Good adhesion to good heat resistance can be formed.
This composition is suitable for the outer surface of pipes for plant structures, etc., where it is assumed that the operation is assumed under the temperature and temperature conditions of the species, and the heat insulating material is installed. Heat resistant / anticorrosion coating can be formed. Suitable as a paint.
[0021]
If this composition contains (a) to (c) above, it does not impair the effect of the book, and other than the above (a a) to (c)) is added. Agents For example, hardening accelerators (d) Other than the above-mentioned (b and and (c)), dispersants, antifoaming agents, memento / preventive agents, dehydrating agents, and organic solvents. Thigh
[0022]
This composition is a one-component type composition composition or a two-component type or more.
.. .. Since it is possible to easily obtain a heat-resistant and heat-resistant coating film that is dry, anti-corrosion and anti-corrosion, it is preferable to include ((d)) in promoting curing. )) ~ C c) is composed of the main ingredient component and the hardening accelerator (d is contained in the component). It is preferable to use a composition of a component type.
If this composition has a composition of two or more components, the components used in the composition should be stored, stored, transported, etc. in separate containers, etc., and mixed immediately before use. Will be.
[0023]
The above-mentioned aluminum powder () is particularly limited. It may be a scaly scaly aluminum powder or a scaly non-scaly aluminum powder, but it may be a metallic metallic tuned tuned heat resistant. Aluminum aluminum powder is used because it is easy to obtain a coating film. In addition, by using scaly aluminum aluminum powder, it is possible to form an anticorrosion and anticorrosion coating film that is superior in salt water resistance and moisture resistance.
In addition, as a raw material for preparing this composition, not only powder but also paste-like aluminum may be used.
The aluminum aluminum powder () contained in the real product may be one kind, good, good, good, or more than seeds.
[0046]
The above-mentioned "scaly" refers to the shape of the scale, which is in the shape of a scale, and although there is no specified range, its aspect-aspect ratio, preferably 5, ,,, More preferably 10 or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more or more More preferably 120 or less
In addition, the former "non-scaly" refers to shapes other than scaly, such as spherical, teardrop-shaped, and spindle-shaped, and has a shape other than scaly, and the specified range is particularly specified. It does not exist, but its aspect ratio is usually less than, preferably less than 1, favorably less than 1, more preferably less than or less than 3 or less and less than or less.
[0047]
The aspect ratio described above is measured using an electronic microscope. Scan Scanning Electronic Microscope (sem) "xl-30" Product name; Observe aluminum powder using Phillips Co., Ltd., Number ~ ~ Number Number Number Number Number Number of powder particles in thickness and main surface Measure the maximum length or, the length and length of the major axis, and measure these ratios (maximum length / thickness on the main surface ,,,, major axis major axis major axis major axis major axis major axis major axis. Length / length of minor axis) It can be calculated by the average average value.
Note that the thickness of the aluminum powder can be measured by observing the powder powder from the horizontal direction with respect to the largest surface surface of the powder powder, and the main surface of the powder powder described above. The maximum length means, for example, the length of the diagonal line if the main surface is square, the diameter if the main surface is circular, and the length of the long axis if the main surface is long. The long axis of the powder, specifically, the longest length in the cross-sectional view near the powder powder, and the length of the aluminum aluminum aluminum aluminum aluminum aluminum short axis described above is the above-mentioned cross-sectional view. It is the length of a line perpendicular to the major axis at the center of the sectional view.
[0048]
From the viewpoint of obtaining a coating film with better anticorrosion properties, etc., the above-mentioned scaly aluminum powder powder median ((), is preferred to be 100 100 100 100 or less, and is preferably 5 5 5 5 or more. 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70, especially preferably 50 50 or less.
From the point of view that it is possible to obtain excellent painting work with a low amount, the anterior non-scaly aluminum aluminum median median diameter ()) is more preferably 50 50 or less or less, and more preferable. Is 55 or more, more favorable is 30 30 30 or less, and favorable is 15 15 15 or less.
The above-mentioned d50 is a scattering diffraction type particle size distribution measuring device, for example, "2200 2200" (manufactured by Shimadzu Corporation))))))))))))))). ) Is the average value measured three times.
[0049]
The above-mentioned scaly aluminum powder may be a leafing type or a non-leafing type, but it is preferable to use the leafing type because it can be altered and the adhesion of the base material can be reduced. .. .. .. .. .. .. In the case of scaly aluminum powder as described above, a combination of leafing and non-leafing type may be used. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
[0050]
The above-mentioned non-scaly aluminum powder is an aluminum powder produced by atomization (spraying method). .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
[0051]
The content of aluminum powder (b) in this composition is solid 100 100 mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass mass. Mass With respect to mass, preferably 5% by mass, better than 10% by mass, better than 15%%, better than 35% or less, better than 30 Is less than or equal to% by mass
[0052]
Note: The rust preventive pigment (c) contains magnesium phosphate-based, and there are no particular restrictions.
As examined by the inventor of the present invention, rust-preventive pigments, pigments, magnesium-based compound, compound, compound, compound, compound, compound, compound, compound, compound, compound, compound, compound, compound, compound Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds Compounds The first time a coating is formed by drying at room temperature, the metallic paint of aluminum powder is anticorrosive. Found to form an excellent coating film
.. .. The number of (C) contained in this composition may be one, or two or more. In other words, even if this composition contains two or more kinds of magnesium phosphate compounds. .. .. ..
[0053]
The above-mentioned magnesium phosphate-based compounds are, for example, magnesium phosphate, ammonium phosphate, phosphorus monohydrogen hydrogen hydrogen magnesium phosphorus phosphate di, phosphate phosphate acid ・ calcium ,, phosphoric acid ・ ・ ・ cobalt, phosphoric acid. Magnesium ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・, Magnesium Phosphate ・ Zinc, Magnesium Phosphate ・ Aluminum, Silica Variable Magnesium Phosphate Magnesium Phosphorus Phosphorus Subaphosphate Magnesium ・ Aluminum, Subphosphorus Magnesium ・ ・ Calcium, Hypophosphorus Phosphorate, Polyphosphorus Polyphosphate Magnesium ,,,,,, Magnesium, Magnesium metaphosphate.
[0054]
From the viewpoint of easily obtaining excellent heat resistance due to the adhesion to the base material, etc., ((c), the above-mentioned acid-magnesium compound, as well as the phosphate-lead-based compound (magnesium acid-magnesium-based). System system system system It is preferable to contain compounds other than system system).
.. .. Examples of the phobic acid phosphate compound include phobic acid phosphide, phobic acid phobic acid, phobic acid phobic acid, phobic acid phosphide, polyphosphate sulphate, polyphosphate sulphate, tripolyphosphate sulphate, acid sulphate, zinc ortholithic acid. Examples include lead, phosphorus molybdenum acid sub, phosphorus silicate lead, aluminum phosphate sub, calcium phosphate zinc. .. Be done be done
[0055]
As the rust-preventive pigment (c), in addition, the rust-preventive pigment other than the magnesium phosphate-based compound and the phosphate-lead-based compound may be used, and the other pigment pigments such as, for example, may be used. Zinc Powder Powder Powder Powder Powder Alloy Powder, Calcium Phosphate Compounds, Phosphorus Phosphate Aluminum Bacillus Compounds, Phosphorus Phosphate Calcium Compounds, Phosphorus Phosphate Calcium Compounds, Acidic Aluminum Bacillus Compounds, Subphosphorus Strontium Compounds, Tripolyline Tripolyline Examples include aluminum acid-based compounds, molybdenum acid-hydrogen-based acid aluminum aluminum cyanamide zinc-based compounds, borate compounds, nitro compounds, and composite oxides.
[0056]
Laser diffraction type particle size distribution measurement of rust-preventive pigment (c) ((d50 measured using (made by Shimadzu Co., Ltd., sold-2200) can obtain an excellent heat-resistant coating film with excellent anticorrosion properties. From this point of view, it is preferable that it is 0.5 0.5 or more, more preferably 11 or more, and it is 20 20 20 or less, and it is 15 15 or less. Is
[0057]
The anti-rust pigment (c) can be used in the market as well. For example, e ((banner group uk)), lf lf mpz-500 mpz-500, lf. Bousei pmg (above, above, above, above, manufactured by Kikuchi Color Co., Ltd.), np-1802, np-1902 (,, manufactured by Toho Pigment Industry Co., Ltd.)) ,, For example, lf Bowsei zp-n zp-n zp-n zp-n zp-n zp-n zp-n manufactured by Kikuchi Color Co., Ltd.
[0058]
The content of the rust-preventive pigment (c) in the composition is preferably 0.10. 1 0.1 0.1% by mass or more, more preferably 0.5% by mass or more, particularly preferably 1 mass by mass, is 20% by mass or less, more preferably 15 mass by mass. % Or less, especially favorable 10 10 Mass% or less or less or less or less
[0059]
The amount of magnesium phosphate-based compound in this composition is more than% by mass of solid solid content in this composition because it can easily form heat resistance with excellent anticorrosion properties when dried at room temperature. It's good, it's good, it's good, it's good. 01 Mass% or more, more preferably 0.1 mass% or more, especially preferably 0.5 mass or more, more than 15 mass mass or less, more preferably 10 10 mass or less, especially Preferably 5 mass mass mass mass mass.
[0060]
This composition is a base material that also contains a magnesium phosphate-based compound and a phosphate compound compound. Phosphoric acid-based compound compound compound compound compound compound compound acid sublead-based compound total content, solid content of this composition 100% by mass, preferably by mass mass%, more It is more than 0.5%%, and it is better than 20% by mass or less. It is better than 20% by mass or less. It is better than 15% by mass or less.
In addition, the content of acid-lead-based compound is 100% by mass, and the content of phosphorus-phosphoric acid-acid-acid-acid-based compound is excellent because of its close contact with and. Is more than 20 parts by mass, more preferably 80 parts by mass, and more preferably 70 70 parts by mass or less. be
[0061]
The content of aluminum powder (b) in this composition is such that it is possible to easily obtain a metallic-like coating film that is well-balanced in adhesion, strength, etc. to the anticorrosion base material. Aluminum powder (b) and rust preventive pigment (c) and total content 100% by mass, preferably 50%% or more, more preferably 60% or more by mass, preferably more than% by mass. It is preferably 99% by mass or less, more preferably 90% by mass or less, and particularly preferably 80% by mass or less.
[0062]
The content of the magnesium phosphate compound in this composition is such that it can be easily dried at room temperature and has excellent heat resistance, such as aluminum powder (b and magnesium phosphate). Chemical combination compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound compound The total content of the compound is 100% by mass, preferably 0.1% by mass or more, more preferably 0.5% by mass, and particularly preferably 1% by mass. , Preferably 30 30% by mass or less, more favorably more preferably mass% or less, particularly preferably 15% by mass or less.
[0063]
The composition contains a phosphate-lead compound, and the amount of the phosphate compound in the composition is excellent due to its adhesion to the base material.Metallic-like heat-resistant coating film can be obtained, obtained, obtained, obtained, etc., and the total of aluminum powder ()) and phosphate compound is 100 100% by mass, which is preferable. 1 0.1 mass or more, more preferably 0.5 mass% or more, especially preferred, better, better, better, better, better, more than%, better, 40% or less, More than 30% by mass, especially less than 25%.
[0064]
The above-mentioned curing accelerator (d) is not particularly specified. It is preferable that the material has the ability to promote and promote the cross-linking of the above-mentioned white ki (a), for example, aminosilane ;; titanium al-titanium al, titanium chelate, etc. Titanium-based curing ;; Aluminum-based curing such as aluminum metal, etc. Zinc Zinc-zinc metal, etc. Zinc curing Curing catalyst Phosphoric acid-based acid-based curing, such as phosphoric acid, phosphoric acid ester, etc. Zujiraurate Zujiraurate Zujiraurate Zudilaurate diasetate and other tin-based curing catalysts; 2-ethylhexane bismuth, naphthenate bismuth and other bismuth bismuth-catalyzed catalysts; lithium-lithium and other lithium-based curing catalysts. Among these, aminosilane is preferable because it is possible to easily obtain a heat-resistant coating film having better anticorrosion properties when the composition is dried at room temperature, dried, dried, dried, and dried. ,, Aminosilane Aminosilane It is also a mixture with alcohol.
[0065]
As the above-mentioned aminosilane, an amino group-containing coupling coupling agent is used. .. Limited as the silane coupling agent, conventional compounds can be used, but at least two functional groups can be added to the same molecule, and compounds that can contribute to the improvement of adhesion to the substrate. Is preferred, for example: x-sime x-simeny 3-N "[n is or 1, ha is possible and possible to react with the equipment possible possible possible possible possible Possible Possible Possible Possible Group containing group (Example: Amino group, Hydrogen group Part of hydrogen group Replaced with amino amino group, or Part of carbonization Ether bond bond, etc. Substituted group Indicates a group in which is substituted with an amino group.), Me indicates a group, and indicates a hydrolyzable group (: methoxy group, ethoxy group, etc.). It is better to be a compound that can be produced.
[0066]
The curing accelerator (d) is a commercially available product, for example, the acid-based catalysts "d-220" and "x-40-2309a", and the titanium-based curing catalyst. There are "" "" -25 "," d-20 "," dx-175 ", aluminum-based curing catalyst" dx-9740 ", cat-ac cat-ac", amino silane "kp-390" (amino group). Examples include "d-15" and "d-31" (both manufactured by Shinetsu Shinetsu Kogyo Co., Ltd.), which are lead-based curing catalysts (butanol solution) containing alkoxysilane. Being Being Being Being Being Being Being Being Being Being Being Being Being Being Being Being Being Being
[0067]
When this composition contains a curing accelerator (d), the curing accelerator)) is anticorrosion even when dried at room temperature, and a heat-resistant coating film can be easily formed. This book This book has a solid content of 100% by mass, preferably 0.01%% or more, preferably 0.5% by mass, and more preferably 5% by mass. Kumasaku is 3% by mass or less. .. .. ..
[0068]
This composition contains the above-mentioned (a to ()), without particular limitation, and if desired, to the extent that the effects of the invention are not impaired, for example, other than the preceding () and (). Examples of pigments: Constitution pigments, coloring pigments), dispersants, agents, and other additives such as sedimentation prevention, dehydrating agents, organics, etc.
These other, other, other, other, other, other, other, other, other, other, other, other, other, other, other, other, etc. Additives may be one type or two or more types, respectively.
[0069]
As a method of painting this composition on the base material, conventional and conventionally known methods can be used without limitation, and airless spray spray painting, airless play play painting, brush brush brush brush brush, brush roller painting, which is usually used normally. Etc. are preferable. Spray-spray coating is preferable because it has excellent workability and productivity, can be easily applied to a large-area base material, and the present invention can be more exhibited.
If the material is a two-component composition containing a curing accelerator, it is preferable to perform spray painting, etc., with the component and the component containing the accelerator immediately before painting. Preferred preferred
[0089]
The conditions for spray painting described above may be appropriate depending on the thickness of the heat-resistant coating film to be formed. For example, in the case of spray, 1 (pneumatic pressure: 0.4 to 0.8 mpa 0.8 mpa) 2 2 2 2 2 2 2 2 2 Paint) Pressure: About 10 to 26mpa, Gun movement speed: About 50 to 120cm / sec.
The viscosity of the product used at this time may be adjusted with a thinner, a thinner, etc. The viscosity of the product used at this time was measured with a b-type viscometer (“tvb-10m, manufactured by Toki Co., Ltd.)”. In addition, it is preferable that the temperature is 1.8 1.8 2.5 pa ·. The thinner is an organic solvent that can dissolve or disperse the components in the real product. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, It may be one kind or two or more kinds
[0090]
When this assembly is painted and painted on plant pipes, etc., it is possible to paint on the pipes at a comparatively high temperature by stopping the operation of the plant, but in this case, spray-painted paint is used as the base. On the surface of the material, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, evenly, and evenly, evenly, evenly, and evenly, evenly, evenly, and evenly, evenly, evenly, evenly, and evenly, and evenly, evenly, and so on. To suppress this For the above purposes, a high boiling point high boiling point organic solvent is used. .. .. ..
[0091]
When the composition is applied on the base material, it removes rust, oils and fats, dust, etc. on the base material, and also improves the adhesion with the heat-resistant and heat-resistant coating film. It is preferable to treat the surface of the base material described above (for example, treatment ((iso8501-1 sa2 1/2), oil content, oil content, dust removal / removal treatment), etc.) as described above. The base material may be coated with a shop primer or the like for the purpose of preventing rust.
[0092]
As a method of forming a heat-resistant coating film with the above-mentioned film thickness, the coating film coating film of the desired film may be applied once, or the desired film coating film may be applied twice or more (more than twice or more). The coating film may be formed. Considering the thickness control, and in the coating film, it is preferable to form and form a coating film with a desired coating thickness of 2 or more.
It should be noted that the coating of 2 2 2 2 2 (double coating) is the process [1] [[2], necessary [[3]), and the process [1] and [1] and [1] are obtained after the coating is performed. ], Necessary Necessary Necessary Necessary Necessary Necessary It refers to the method of performing [3], and for painting three or more times, it is a method of repeating a series of steps.
[0093]
When forming a coating film by painting two or more times, 1 Applying the first coating The hue of the coating film, and then applying the next coating ・ The hue of the coating film It is preferable that the hue is different. This is a measure to facilitate forgetting to apply or insufficient film thickness in painting, painting, painting, and painting. In addition, a top coat may be applied to finish the final outer surface with the specified hue. Good good good
[0094]
This composition can be dried and dried at room temperature and can be cured, and can be dried and dried at room temperature. In addition, it is possible to obtain an excellent heat-resistant coating film with excellent heat resistance and anticorrosion properties. .. .. .. .. If desired, it can be dried by heating to shorten the drying time.
The pre-drying conditions are not particularly limited, and depending on the composition, base material coating, painting location, location, etc., the drying temperature is preferably 5 ° C or higher, which is more preferable. It is 10 or more, preferably 10 or less, and more preferably 30 ° C or less. Drying Drying time is preferably 18 hours or more, preferably 24 24 hours or less, preferably 14 days or less, and more preferably 7 days or less.
[0095]
[[3] By doing this, a certain heat resistance that is physically more resistant is formed and formed. That is, it is possible to form a heat-resistant coating film having a higher hardness and a higher anticorrosion property and a higher property property.
Previous step [3] There are no particular restrictions on the heating conditions, but the temperature is preferably 150 to 250 ° C, and the heating heating time is more than more than more than more than more than more than more. More than more More than more More than more More than more More preferably 30 minutes or more, preferably 3 hours or less, more preferably 1 hour or less.
Example
[0096]
Hereinafter, the present invention will be further described with reference to Examples, but the present invention is not limited thereto.
[0097]
[Examples 1 to 9 and comparative examples 1 to 2]
In the container, add each of the raw materials listed in the main ingredient column of Table 1 to the amount described in 1 ((add by mass, stir with a high-speed disper), stir, stir, stir, stir, and disperse evenly to prepare the main ingredient. Prepared.
The components listed in Table 1 are as shown in Table 2. In addition, each component solid content (mass))))))) of each component in Table 2 is the manufacturer's catalog value.
[0098]
[table 1]
[0099]
[Table 2]
[0100]
By mixing 100 parts by mass of the prepared ingredients with 1.5 parts by mass of the agent kp-390, a paint composition can be obtained, and the obtained paint can be obtained. Ss400 Sand Blast (equivalent to iso8501-1 sa2 1/2) A film with a gap of 700 700 700 was applied on the steel plate to a thickness of 250 250 250 250 250.
Steel plate Steel plate top-painted Painted material can be dried at 23, for a period of time, for a period of time, for a period of time, for a period of time, and for a period of time. Specimen (base material with coating)) Created. In addition, due to the influence of the unpainted part of the composition, the test piece and and the edge edge part epoxy-based anticorrosion paint paint paint paint paint paint paint paint paint paint test piece, according to jis z 2371. After conducting a neutral neutral salt water test (℃) for 3 to 3 weeks on the test piece, it was dried in the environment of 23 23 ℃ ℃ and 55%%. A grid tape peeling test (5 mm × 5 mm, 9 squares) was performed on the test piece.
[0101]
Specifically, the go board tape peeling test was conducted as follows.
Precautions Drying test piece Use a guide to reach the depth of the coating, 4 × × horizontal and horizontal cuts, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, scratches, and scratches. Scratch Scratch Scratch Scratch Scratch Scratch Scratch Scratch Injured 9 squares Go board Go board The eyes were created. The interval between the cuts was 5 mm. .. , Apply the cellophane tape (registered trademark) strongly to the part of the go board mentioned above, and apply the edge of the coating to the edge of the coating. It was peeled off at once at an angle of 90 ° to the coated surface. After that, the adhesion is evaluated by the value of the area on the steel plate with respect to the area of 9 mentioned above, and the residual residual rate rate ((% is calculated, ,,,,,,,,,, rate (%)). did
Residual residual area rate (% is less than 50 50 is defective (XX) and residual area rate rate rate%) is 50% Adhesion Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good ○).
[0102]
The following (1) to (3) test pieces were prepared and each piece was used to perform the salt water spray test described in () below and evaluated.
[0103]
(1) Unheated test piece
By mixing 100% by mass of the main ingredient component and 1.5 mass of the curing and curing accelerator, a paint product is obtained, and further, the composition is obtained. The viscosity was adjusted using xylene so that the viscosity became s at 23 ° C, which was measured using the above-mentioned b viscometer.
After adjusting the viscosity, sand blast the composition. iso8501-iso8501-iso8501-iso8501-iso8501-iso8501-iso8501-1 sa2 1/2 equivalent) Painted on a steel plate with a film applicator of 700 700 700 in between 250 250 250.
The painted material on the steel plate was dried at 23 ° C for 7 hours to prepare an unheated test piece (base material with a coating film).
[0104]
(2) Heat cycle test piece (300 ° C heating + +)
(1 1) The test obtained in the same manner as the heating test was placed in an electric oven and heated at 300 300 ° C for 10 seconds. Then it cooled rapidly. After that, the test was taken out and left at room temperature for 30 minutes. A heat cycle cycle piece was created by carrying out heating and quenching as one cycle and three cycles.
[0105]
(3) Heat resistance stance test (heating at 550 ° C)
(1) The test piece obtained in the same manner as unheated is placed in a muffle furnace, heated at 550 ° C for 4 hours, and then heat heat heat heat heat heat heat heat heat heat heat heat heat heat heat heat heat heat. Heat Heat Heat Heat Heat Heat Heat Heat Heat Heat Heat Heat Heat Resistance test pieces were prepared.
[0106]
(4) Salt spray test
In the test created in (1) to 3) above, the depth of the (scribing) to the extent that the steel plate is exposed at the location shown in 1 1 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In order to eliminate the influence of the part where the composition is not painted, the edge part of the test piece is used with anticorrosion anticorrosion paint coating, and according to z 2371.For each test piece, neutral salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water salt water The creep width (the length between the part far from the scribing part and the scribing part of the part where the coating film and the steel plate are peeled off) was determined according to the evaluation criteria below. Here, "In consideration of the influence of the evaluation target part, and the epoxy-based paint, the part within the range of 1 cm from the end of the test piece is selected.
[0107]
· Evaluation criteria
◎: Creep width in the evaluation target part is less than 5 mm
○: Evaluation target creep creep width is 5 mm or more and 10 mm
△ :: Target part creep creep creep width is less than 10 mm
× × :: Evaluation part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part, part
[0108]
[Table 3]
The scope of the claims
[Claim 1]
Heat-resistant paint composition, composition, composition, composition, including siloxane-based binder (a), aluminum powder (b), and rust-preventive pigment c) containing magnesium acid-based compound.
[Claim 2]
The heat-resistant coating material according to claim 1, wherein the rust-preventive pigment (C) further contains a zinc phosphate-based compound.
[Claim 3]
The heat-resistant coating composition according to claim 1 or 2, further comprising a curing accelerator (D).
[Claim 4]
The heat-resistant coating composition according to any one of claims 1 to 3, wherein the content is 25 to 55%.
[Claim 5]
A heat-resistant coating film formed from the heat-resistant coating composition according to any one of claims 1 to 4.
[Claim 6]
A base material with a heat-resistant coating including the base material and the heat-resistant coating according to claim 5.
[Claim 7]
Method of manufacturing a base material with a heat-resistant coating, including the following steps [1] and [2]
In [1], paint the heat-resistant paint composition described in item 1 to item 1 to paint paint paint paint paint paint
[2] Step of drying the painted heat-resistant paint composition to form a heat-resistant coating film