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Anti-corrosion weather-proof powder coating and preparation method thereof

A powder coating and weather-resistant technology, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of weather resistance and decorative defects, and achieve excellent acid and alkali resistance, stable quality, and easy mass production. Effect

Inactive Publication Date: 2021-02-26
安徽博泰装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can achieve the purpose and requirements of high anti-corrosion, it has certain defects in weather resistance and decoration.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Concrete raw material is weighed by table 1, and step preparation step is as follows:

[0023] (1) Add potassium tetratitanate whiskers to 10 times the weight of water, and ultrasonically disperse for 10 minutes to obtain a dispersion;

[0024] (2) Place the dispersion in a constant temperature water bath at 75°C, and slowly add 0.1mol / L Na 2 SiO 3 solution and 1 wt% H 2 SO 4 solution, and control the pH value of the solution to be 9-10. After the solution is kept warm for 1 hour, filter and wash until the pH is 7, dry at 120°C for 3 hours, and grind to below 200 mesh;

[0025] (3) Add silane coupling agent KH-560 of 0.5 times the weight of the whiskers and 50% ethanol solution of 5 times the weight of the whiskers, stir evenly, stir at 60°C for 3 hours, and dry at 100°C for 3 hours to obtain the modified tetratitanium Potassium whiskers.

[0026] (4) Add the modified potassium tetratitanate whiskers and other raw materials into a high-speed mixer, mix at a tempera...

Embodiment 2

[0028] (1) adding potassium tetratitanate whiskers to 15 times the weight of water, and ultrasonically dispersing for 30 minutes to obtain a dispersion;

[0029] (2) Place the dispersion in a constant temperature water bath with a temperature of 90°C, and slowly add 0.2mol / L Na 2 SiO 3 solution and 2wt% H 2 SO 4 solution, and control the pH value of the solution to 9-10, after the solution is kept warm for 2 hours, filter and wash until the pH is 7, dry at 150°C for 2 hours, and grind to below 200 mesh;

[0030] (3) Add silane coupling agent KH-560 of 0.7 times the weight of whiskers and 50% ethanol solution of 10 times the weight of whiskers, stir evenly, stir at 70°C for 2 hours, and dry at 110°C for 2 hours to obtain modified tetratitanium Potassium whiskers.

[0031] (4) Add the modified potassium tetratitanate whiskers and other raw materials into a high-speed mixer, mix at a temperature of 60°C and a speed of 600r / min for 10 minutes to obtain a mixture; add the mixtu...

Embodiment 3

[0033] (1) adding potassium tetratitanate whiskers to 15 times the weight of water, and ultrasonically dispersing for 30 minutes to obtain a dispersion;

[0034] (2) Place the dispersion in a constant temperature water bath with a temperature of 90°C, and slowly add 0.2mol / L Na 2 SiO 3 solution and 2wt% H 2 SO 4 solution, and control the pH value of the solution to 9-10. After the solution is kept warm for 2 hours, filter and wash until the pH is 7, dry at 150°C for 3 hours, and grind to below 200 mesh;

[0035] (3) Add silane coupling agent KH-560 of 0.7 times the weight of whiskers and 50% ethanol solution of 10 times the weight of whiskers, stir evenly, stir at 70°C for 3 hours, and dry at 110°C for 3 hours to obtain modified tetratitanium Potassium whiskers.

[0036] (4) Add the modified potassium tetratitanate whiskers and other raw materials into a high-speed mixer, mix at a temperature of 60°C and a speed of 600r / min for 20min to obtain a mixture; add the mixture un...

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PUM

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Abstract

The invention relates to the technical field of powder coatings, in particular to an anti-corrosion weather-proof powder coating and a preparation method thereof. The anticorrosive weather-resistant powder coating is prepared from bisphenol A epoxy resin, modified potassium tetratitanate whiskers, sericite powder, graphene, ultrafine barium, titanium dioxide, a leveling agent, a dispersing agent,an antifoaming agent and a curing agent. The anticorrosive weather-resistant powder coating prepared by the invention has the characteristics of excellent acid and alkali resistance, salt spray resistance, weather resistance, water resistance and the like, has very strong adhesive force to a base material, has an adhesive force up to first grade level, has very good adhesive force to steel structures and the like, and can be widely applied to severe outdoor environments such as outdoor containers, engineering machinery, ships and the like.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to an anti-corrosion and weather-resistant powder coating and a preparation method thereof. Background technique [0002] At present, among the coatings at home and abroad, thermosetting powder coatings are the most advanced and most environmentally friendly coatings, mainly because this coating is a complete solid powder, does not contain any volatile solutions and does not contain water, and has various physical and chemical properties. Performance is also far better than other coatings. Due to the thermosetting properties of powder coatings, after heating and baking, three-dimensional three-dimensional network crosslinking will be carried out to form an excellent and complete coating film. However, there are still some technically difficult breakthroughs in powder coatings. For example, coatings that require both "super" weather resistance and "high" anti-corrosion are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/03C09D5/08C09D7/62C09D7/61
CPCC08K2003/2241C09D5/033C09D5/08C09D163/00C08K13/06C08K9/06C08K7/08C08K3/34C08K3/042C08K3/22
Inventor 陈文福
Owner 安徽博泰装饰材料有限公司
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