Weather-resistant paint and preparation method thereof

A technology of weather resistance and coating, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of poor cold and heat resistance of the paint film, poor corrosion resistance, poor adhesion, etc., to achieve excellent high temperature resistance, improve weather resistance, and prolong service life The effect of longevity

Active Publication Date: 2015-02-25
佛山市顺德区容桂江裕化工五金有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a weather-resistant coating, which solves the problems of poor adhesion to the base material of the conventional weather-resistant coating paint film in the prior art, poor resistance to cold and heat alternation of the paint film, easy cracking, and poor corrosion resistance at high temperatures

Method used

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  • Weather-resistant paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Weigh 20 parts of epoxy-modified hydroxyacrylic resin, 20 parts of thermoplastic acrylic resin with a weight average molecular weight of 80000-85000, 20 parts of silicone-modified acrylic resin, and 10 parts of melamine resin, and add them to the mixing tank in turn, and then add B 20 parts of diol monobutyl ether, 15 parts of propylene glycol methyl ether acetate, 0.3 parts of dispersant, fully stirred for 30 minutes; take 7 parts of phenyltrichlorosilane, 3 parts of vinyltrimethoxysilane, 10 parts of nano corundum powder, 7 parts of titanium dioxide, 5 parts of talc powder, 0.5 parts of defoamer, 0.5 parts of leveling agent, add to the mixture in step a) in turn, stir for 10 minutes, then add the remaining 0.2 parts of dispersant, stir for 30 minutes, Get paint products.

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Abstract

The invention discloses weather-resistant paint and a preparation method thereof. The weather-resistant paint is composed of, by weight, 20 parts of epoxy modified hydroxy acrylic resin, 20 parts of thermoplastic acrylic resin with weight-average molecular weight of 80000-85000, 20 parts of organic silicon modified acrylic resin, 10 parts of melamine resin, 7 parts of phenyl trichorosilane, 3 parts of vinyl trimethoxy silane, 10 parts of nano corundum powder, 7 parts of titanium dioxide, 5 parts of talcum powder, 0.5 part of defoamer, 0.5 part of flatting agent, 0.5 part of dispersant, 20 parts of ethylene glycol butyl ether and 15 parts of propylene glycol methyl ether acetate, wherein number-average molecular weight of the epoxy modified hydroxy acrylic resin is 10000-15000. Overall weatherability of a paint film is improved, and service life of the paint film is prolonged effectively.

Description

technical field [0001] The invention relates to a preparation method of a weather-resistant paint. Background technique [0002] With the rapid development of modern industry, the requirements for the paint film of outdoor equipment are getting higher and higher. It is required that the paint film does not change color, does not fall off, and can still maintain good physical and mechanical properties and anti-corrosion properties in harsh environments. [0003] At present, there are many reports on weather-resistant coatings, and the existing weather-resistant coatings can basically meet the requirements of use in ordinary outdoor environments, but there are some shortcomings. For example, the paint film is prone to cracking after being irradiated by ultraviolet light for a certain period of time, and the adhesion of the paint film is poor. If it is exposed to the outside for a long time, the performance of alternating cold and heat resistance and corrosion resistance is sti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D133/00C09D161/28C09D5/08
CPCC08K2003/2241C09D133/14C08L2205/02C08L2205/035C09D5/08C09D133/00C09D133/04C09D161/28C08L33/00C08L33/04C08L61/28C08K13/02C08K2003/2227C08K3/34C08K5/5425C08K5/5406C08L33/14
Inventor 张亦彬
Owner 佛山市顺德区容桂江裕化工五金有限公司
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