Leveling agent for coating
A technology of leveling agent and coating, applied in the direction of coating, etc., can solve problems such as limitations
Inactive Publication Date: 2011-05-25
SUZHOU MEIYAMEI CONSTR COATINGS
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AI Technical Summary
Problems solved by technology
To improve the leveling property of coatings, we can focus on increasing the surface tension and reducing the rheological index. However, for coatings containing more organic solvents and water, the only way to further increase the surface tension is by means of solid substances, so it is subject to certain limitations. limit
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0011] Add 5 parts of leveling agent to every 100 parts of pigment-containing mixed paint. The formula of leveling agent is 50-60 parts of clay, 10-20 parts of calcium carbonate, 15-20 parts of styrene-butadiene rubber, and 1-2 parts of tetrasodium pyrophosphate. , 8-10 parts of fluorine-containing surfactant. Preferable: 60 parts of pottery clay, 20 parts of calcium carbonate, 20 parts of styrene-butadiene rubber, 1 part of tetrasodium pyrophosphate, and 8 parts of fluorine-containing surfactant. The added paint has no orange peel phenomenon after spraying and is suitable for high-speed roller coating.
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The invention discloses a leveling agent for the coating, comprising the following components in parts by weight: 50-60 parts of argil, 10-20 parts of calcium carbonate, 15-20 parts of styrene rubber, 1-2 parts of tetrasodium pyrophosphate and 8-10 parts of fluorine-containing surfactant, preferably 60 parts of argil, 20 parts of calcium carbonate, 20 parts of styrene rubber, 1 part of tetrasodium pyrophosphate and 8 parts of fluorine-containing surfactant. The leveling agent for the coating has excellent compatibility and surface activity for widely-ranged resin and solvents, and can effectively improve the infiltration property, the dispersity and the leveling property.
Description
[0001] technical field [0002] The invention belongs to the technical field of coatings, in particular to a leveling agent for coatings. [0003] Background technique [0004] Leveling agent refers to an auxiliary additive designed to make the coating flow and form a smooth coating regardless of the application method. For example, whether there are residual brush marks when brushing, orange peel surface when spraying, roller marks of high-speed roller coating machine, and problems such as pitting or blistering caused by too fast condensation on the surface of the coating film. To improve the leveling property of coatings, we can focus on increasing the surface tension and reducing the rheological index. However, for coatings containing more organic solvents and water, the only way to further increase the surface tension is to rely on solid substances, so it is subject to certain restrictions. limit. [0005] Contents of the invention [0006] Purpose of the invention...
Claims
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IPC IPC(8): C09D7/06C09D7/47
Inventor 曹其荣
Owner SUZHOU MEIYAMEI CONSTR COATINGS