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Water-resistant glossless powder coating and preparation method thereof

A powder coating, wear-resistant technology, applied in powder coatings, fire-retardant coatings, polyester coatings, etc., can solve the problems affecting the wear resistance, durability, impact, and damage of the surface continuity of the coating film, and reduce the gloss. , Noise reduction, good water breathing effect

Inactive Publication Date: 2017-03-15
FUJIAN WANAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation requirement of matt powder coatings is to destroy the continuity of the coating film surface to the greatest extent, which will inevitably lead to orange peel, pinholes and impact problems on the matt coating film surface, which will seriously affect the wear resistance and durability of the coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A wear-resistant matte powder coating, composed of the following raw materials in parts by weight: 20 parts of epoxy resin, 45 parts of polyester resin, 0.5 parts of leveling agent, 2 parts of brightening agent 701, 3 parts of corundum powder, 17 parts of tea stem powder, 4 parts of shell powder, 3 parts of polytetrafluoroethylene wax, 0.5 part of carbon black, 5 parts of matting curing agent.

[0021] The shell powder is obtained by calcining discarded shells at 1100° C. for 4 hours, cooling, crushing, and passing through a 100-mesh sieve.

[0022] A method for preparing the wear-resistant matte powder coating as described above, comprising the following steps:

[0023] 1) Mix epoxy resin, polyester resin, corundum powder and carbon black, extrude, tablet crush, grind and sieve to obtain A powder;

[0024] 2) Mix tea stem powder, shell powder, leveling agent, brightening agent and polytetrafluoroethylene wax, extrude, tablet crush, grind and sieve to obtain B powder; ...

Embodiment 2

[0028] A wear-resistant matte powder coating, composed of the following raw materials in parts by weight: 26 parts of epoxy resin, 39 parts of polyester resin, 1 part of leveling agent, 1.5 parts of brightening agent 701, 5 parts of corundum powder, 14 parts of tea stem powder, 6 parts of shell powder, 2 parts of polytetrafluoroethylene wax, 1 part of carbon black, 4.5 parts of matting curing agent.

[0029] The shell powder is obtained by calcining discarded shells at 800° C. for 5 hours, cooling, crushing, and passing through a 100-mesh sieve.

[0030] A method for preparing the wear-resistant matte powder coating as described above, comprising the following steps:

[0031] 1) Mix epoxy resin, polyester resin, corundum powder and carbon black, extrude, tablet crush, grind and sieve to obtain A powder;

[0032] 2) Mix tea stem powder, shell powder, leveling agent, brightening agent and polytetrafluoroethylene wax, extrude, tablet crush, grind and sieve to obtain B powder;

...

Embodiment 3

[0036] A wear-resistant matte powder coating, composed of the following raw materials in parts by weight: 30 parts of epoxy resin, 35 parts of polyester resin, 1.5 parts of leveling agent, 1 part of brightening agent 701, 6 parts of corundum powder, 12 parts of tea stem powder, 7 parts of shell powder, 1 part of polytetrafluoroethylene wax, 1.5 parts of carbon black, 4 parts of matting curing agent.

[0037] The shell powder is obtained by calcining discarded shells at 1500° C. for 3 hours, cooling, crushing, and passing through a 100-mesh sieve.

[0038] A method for preparing the wear-resistant matte powder coating as described above, comprising the following steps:

[0039] 1) Mix epoxy resin, polyester resin, corundum powder and carbon black, extrude, tablet crush, grind and sieve to obtain A powder;

[0040] 2) Mix tea stem powder, shell powder, leveling agent, brightening agent and polytetrafluoroethylene wax, extrude, tablet crush, grind and sieve to obtain B powder; ...

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PUM

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Abstract

The invention belongs to the field of powder coating preparation and particularly relates to wear-resistant glossless powder coating and a preparation method thereof. The powder coating is prepared from the following raw materials in parts by weight: 20-30 parts of epoxy resin, 35-45 parts of polyester resin, 0.5-1.5 parts of leveling agent, 1-2 parts of brightener 701, 3-6 parts of corundum powder, 12-17 parts of tea stalk powder, 4-7 parts of shell powder, 1-3 parts of polytetrafluoroethylene wax, 0.5-1.5 parts of carbon black and 4-5 parts of extinction curing agent. According to the invention, by adding the tea stalk powder and shell powder into the mixed glossless powder coating and due to the porosity of the tea stalk powder and shell powder, the gloss of the powder coating is further reduced; and meanwhile, since the tea stalk powder and shell powder form a strong adsorption field, the adhesion of the glossless powder coating is enhanced, and the glossless powder coating has excellent wear resistance and environment friendliness and is suitable for outdoor use.

Description

technical field [0001] The invention belongs to the field of powder coating preparation, and in particular relates to a wear-resistant matte powder coating and a preparation method thereof. Background technique [0002] With the expansion of the amount and application range of powder coatings, matte and dull powder coatings have been widely used in the market as an important powder coating variety. The difference between high-gloss, matt and matt powder coatings is divided according to the level of gloss. Generally speaking, those with a glossiness < 6% are matte powder coatings. Matte powder coatings can be divided into two types: mixed type and pure epoxy according to the composition of the formula. Matt powder coatings for outdoor applications can only be produced by reacting epoxy-capped acrylic resins with pure polyester by the chemical matting method. [0003] The requirement for the preparation of matt powder coatings is to destroy the continuity of the coating ...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D163/00C09D7/12C09D5/03C09D5/18
CPCC08L2201/02C08L2205/035C09D5/033C09D5/18C09D167/00C09D7/61C09D7/65C09D7/70C08L63/00C08L27/18C08L97/02C08K7/24C08K2003/265C08K3/04
Inventor 苏捷黄溪福林琳艺杨杰龙陈国富
Owner FUJIAN WANAN IND