Pure epoxy powder coating and preparation method thereof

An epoxy powder and coating technology, applied in the coating field, can solve the problems of poor chemical resistance, poor decoration, poor leveling, etc., and achieve the effects of good mechanical properties, good decoration, and good chemical resistance

Inactive Publication Date: 2018-05-29
成都信达高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powder coatings currently on the market have the disadvantages of poor leveling, poor chemical resistance, and poor decoration

Method used

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  • Pure epoxy powder coating and preparation method thereof
  • Pure epoxy powder coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A pure epoxy powder coating: in parts by weight, the pure epoxy powder coating components include: 75 parts of epoxy resin, 7 parts of curing agent, 35 parts of titanium dioxide, 40 parts of barium sulfate, 1 part of acrylic acid leveling agent 1 part, acrylic wetting agent 1 part, benzoin 1 part, stearic acid 1 part, polyethylene wax 1 part, amide wax 1 part, polytetrafluoroethylene wax 1 part, charge regulator 1 part, organic bentonite 1 part , 1 part of catalyst, 5 parts of matting agent.

[0026] Wherein, the curing agent is an epoxy curing agent; the catalyst is imidazole and its derivatives. The pure epoxy powder coating composition also includes: pigments. 0-15 parts of the pigment.

[0027] The preparation method of the above pure epoxy powder coating includes: premixing the pure epoxy powder coating components, washing, extruding, pulverizing, and mixing to obtain the pure epoxy powder coating.

[0028] Wherein, the crushing process specifically includes: co...

Embodiment 2

[0030] The difference between this embodiment and Example 1 is that in parts by weight, the pure epoxy powder coating components include: 50 parts of epoxy resin, 5 parts of curing agent, 10 parts of titanium dioxide, 10 parts of barium sulfate, all 0.1 part of acrylic leveling agent, 0.1 part of acrylic wetting agent, 0.1 part of benzoin, 0.1 part of stearic acid, 0.1-1 part of polyethylene wax, 0.1-1 part of amide wax, 0.1 part of polytetrafluoroethylene wax, 0.1 part of charge regulator, 0.1 part of organic bentonite, 0.1 part of catalyst, and 0.1 part of matting agent.

Embodiment 3

[0032] The difference between this embodiment and Example 1 is that in parts by weight, the pure epoxy powder coating components include: 75 parts of epoxy resin, 7 parts of curing agent, 35 parts of titanium dioxide, 40 parts of barium sulfate, acrylic acid 1 part of leveling agent, 1 part of acrylic wetting agent, 1 part of benzoin, 1 part of stearic acid, 1 part of polyethylene wax, 1 part of amide wax, 1 part of polytetrafluoroethylene wax, 1 part of charge regulator, 1 part of organic bentonite, 1 part of catalyst.

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Abstract

The invention discloses pure epoxy powder coating and a preparation method thereof. The pure epoxy powder coating comprises the following components in parts by weight: 40-75 parts of epoxy resin, 3-7parts of a curing agent, 0-35 parts of titanium dioxide, 0-40 parts of barium sulfate, 0-1 part of an acrylic leveling agent, 0-1 part of an acrylic wetting agent, 0-1 part of benzoin, 0-1 part of stearic acid, 0-1 part of polyethylene wax, 0-1 part of amide wax, 0-1 part of polytetrafluoroethylene wax, 0-1 part of charge regulator, 0-1 part of organobentonite, 0-1 part of catalyst, 0-5 parts ofa matting agent, 0-4 parts of CAB-551-0.2 and 0-4 parts of an embossing agent. The pure epoxy powder coating is good in leveling property, good in decorativeness, good in storage stability, good in chemical resistance and good in mechanical properties; streak sanding and wrinkling effects can be achieved by changing the using amounts of the components, namely the CAB-551-0.2 and the embossing agent; meanwhile, through addition of aluminum silver powder or a pearlescent pigment, a streak hammering effect is achieved; the decorativeness of the pure epoxy powder coating is further improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a pure epoxy powder coating and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free, pure solid powder coating composed of polymers, pigments and additives; it has the characteristics of no solvent, no pollution, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. Powder coatings have a high usage rate because they do not emit volatile organic compounds. In the past 10 years, the development speed of powder coatings in the world has been very fast, with an average annual growth rate of 8%-15%. The powder coatings currently on the market have the disadvantages of poor leveling, poor chemical resistance, and poor decoration. Contents of the invention [0003] In view of this, the application provides a pure epoxy powder coating and its preparation process, the pure epoxy pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/03C09D5/36C09D7/61C09D7/63C09D7/65
CPCC09D163/00C08K2003/0812C08K2003/2241C08K2003/3045C08L2205/035C09D5/033C09D5/034C09D5/36C08L23/06C08L27/18C08K13/02C08K5/07C08K3/22C08K3/30C08K5/09C08K3/08C08K3/346
Inventor 王雯琪李论张光红
Owner 成都信达高分子材料有限公司
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