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Self-cleaning powder coating as well as preparation method and application thereof

A powder coating and self-cleaning technology, applied in powder coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as difficult to clean oil stains, improve self-cleaning durability, improve self-cleaning performance, and increase cross-linking density Effect

Pending Publication Date: 2022-07-29
TIANJIN SHENGDA POWDER COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the deficiencies in the prior art. The existing powder coatings have the problem of difficult cleaning of oil stains in some industrial application scenarios, and provides a self-cleaning powder coating and its preparation method and application. The powder coating has excellent Self-cleaning effect and long-lasting self-cleaning function, which can solve the problem that existing powder coatings are difficult to clean in some industrial application scenarios.

Method used

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  • Self-cleaning powder coating as well as preparation method and application thereof
  • Self-cleaning powder coating as well as preparation method and application thereof
  • Self-cleaning powder coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of self-cleaning powder coating is carried out according to the following steps:

[0027] Step 1, batching and mixing: according to 5 parts of carboxyl-terminated polyester resin, 5 parts of epoxy resin, 30 parts of hydroxyl-terminated polyester resin, 45 parts of isocyanate, 1 part of mixture of acrylate copolymer and silica, 1 part Copolymer of butyl acrylate and methyl methacrylate, 1 part of benzoin (also known as benzophenone), 1 part of defoaming agent, 3 parts of polytetrafluoroethylene wax, 7 parts of silicon powder, 1 part of pigment Take the raw materials, and pre-mix the raw materials, so that the above-mentioned raw materials are fully mixed evenly, that is, the mixed raw materials are obtained, wherein the acid value of the carboxyl-terminated polyester resin is 60-80 mgKOH / g, and the viscosity (200 ° C) is 2000-5000 mPa .s, the epoxy equivalent of epoxy resin is 700-1000g / eg, the softening point is 88-100℃, the hydroxyl value of hydrox...

Embodiment 2

[0031] A preparation method of self-cleaning powder coating is carried out according to the following steps:

[0032] Step 1, batching and mixing: according to 2 parts of carboxy-terminated polyester resin, 2 parts of epoxy resin, 30 parts of hydroxyl-terminated polyester resin, 45 parts of isocyanate, 1 part of mixture of acrylate copolymer and silica, 1 part Copolymer of butyl acrylate and methyl methacrylate, 1 part of benzoin (also known as benzophenone), 1 part of defoaming agent, 3 parts of polytetrafluoroethylene wax, 13 parts of silicon powder, 1 part of pigment Take the raw materials, and premix the raw materials, so that the above-mentioned raw materials are fully mixed to obtain the mixed raw materials, wherein the carboxyl-terminated polyester resin has a fatty acid value of 60-80 mgKOH / g, and a viscosity (200 ° C) of 2000-5000mPa. s, the epoxy equivalent of epoxy resin is 700-1000g / eg, the softening point is 88-100℃, the hydroxyl value of hydroxyl-terminated polye...

Embodiment 3

[0036] A preparation method of self-cleaning powder coating is carried out according to the following steps:

[0037] Step 1, batching and mixing: according to 5 parts of carboxyl-terminated polyester resin, 5 parts of epoxy resin, 32 parts of hydroxyl-terminated polyester resin, 48 parts of isocyanate, 1 part of mixture of acrylate copolymer and silica, 1 part of Copolymer of butyl acrylate and methyl methacrylate, 1 part of benzoin (also known as benzophenone), 1 part of defoaming agent, 3 parts of polytetrafluoroethylene wax, 2 parts of silicon powder, 1 part of pigment Take the raw materials, and pre-mix the raw materials, so that the above-mentioned raw materials are fully mixed evenly, that is, the mixed raw materials are obtained, wherein the acid value of the carboxyl-terminated polyester resin is 60-80 mgKOH / g, and the viscosity (200 ° C) is 2000-5000 mPa .s, the epoxy equivalent of epoxy resin is 700-1000g / eg, the softening point is 88-100℃, the hydroxyl value of hyd...

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Abstract

The invention provides a self-cleaning powder coating as well as a preparation method and application thereof. The self-cleaning powder coating is prepared from carboxyl-terminated polyester resin, epoxy resin, hydroxyl-terminated polyester resin, a curing agent, a flatting agent, a brightener, a degassing agent, a defoaming agent, wax powder, filler and pigment. The powder coating has an excellent self-cleaning effect and a long-acting self-cleaning function, and can solve the problem that oil stains are difficult to clean in part of industrial application scenes of the existing powder coating.

Description

technical field [0001] The invention relates to the technical field of paint and coating, and more particularly to a self-cleaning powder paint and a preparation method and application thereof. Background technique [0002] With the development of industry, industrial waste gas, waste water and waste residue have caused serious pollution to the environment, and environmental protection has become an important issue worldwide. Powder coating is a new type of solvent-free, 100% solid powder coating, which has become recognized as a 4E type coating product that meets high production efficiency, excellent film performance, eco-friendly and economical, and has won the world paint and coating. The industry attaches great importance to it, and has become one of the fastest-growing varieties of various coatings. It has the advantages of recyclability, environmental protection and energy saving, and has gradually replaced paint in many fields. [0003] With the development of powde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D5/03C09D7/65C09D7/61
CPCC09D175/06C09D5/033C08L2312/00C08L27/18C08K3/36
Inventor 李明盛
Owner TIANJIN SHENGDA POWDER COATING
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