Wear-resistant self-lubricating anti-icing and anti-fog coating and preparation method thereof

An anti-fog coating and self-lubricating technology, which is applied in the direction of fireproof coatings, powder coatings, polyamide coatings, etc., can solve the problems of impact resistance, scratch resistance, toughness, etc. that are not very good, affect the appearance, and scratch the coating. Achieve good dispersibility, improve the effect of anti-icing, delay or frost formation

Inactive Publication Date: 2020-07-28
广东睿智环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary powder coatings are uniform in composition, and the coating performance is uniform after spraying, but the impact resistance, scratch resistance, toughness and other properties are not very good
In addition, the coating, especially the powder itself, is used to protect the metal from corrosion or to enhance the aesthetics, such as when used on a car, but it is inevitable that the coating will be scratched during deicing, which will affect the appearance, and the humid air is easy to damage the car. Condensation on the surface, showing the appearance defect of "water mist", and it is also very easy to freeze in winter in the north

Method used

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  • Wear-resistant self-lubricating anti-icing and anti-fog coating and preparation method thereof
  • Wear-resistant self-lubricating anti-icing and anti-fog coating and preparation method thereof
  • Wear-resistant self-lubricating anti-icing and anti-fog coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take 50 parts of compound shown in Formula 1, 40 parts of polyamide resin, 15 parts of fluorophenylisocyanate curing agent shown in Formula 2, 2 parts of Gemini quaternary ammonium salt, 3 parts of polyethylene wax, 15 parts of filler, 1 part of defoamer 1 part and leveling agent 1 part.

[0040] Wherein, n in the compound shown in Formula 1 is 7; the end group of the polyamide resin is carboxyl group, the molecular weight is 3000-6000g / mol, the melting point is 135-145°C, and the melt viscosity is not higher than 450Pa·s at 165°C; The gemini quaternary ammonium salt is 12-3-12 type Gemini gemini quaternary ammonium salt; the defoamer is methyl silicone oil; the leveling agent is polyacrylate leveling agent.

[0041] The filler includes graphite, nano-alumina and modified nano-silicon dioxide, and the mass ratio of the three is 3:5:8. The modified nano-silicon dioxide is prepared by the following method: mixing nano-silicon dioxide Mix silicon oxide, ethanol, and ethyl...

Embodiment 2

[0047] Take 60 parts of compound shown in formula 1, 45 parts of polyamide resin, 20 parts of fluorophenyl isocyanate curing agent shown in formula 2, 4 parts of gemini quaternary ammonium salt, 5 parts of polyethylene wax, 18 parts of filler, 1.5 parts of defoamer 1.5 parts and leveling agent.

[0048]Wherein, n in the compound shown in Formula 1 is 5; the end group of the polyamide resin is carboxyl group, the molecular weight is 3000-6000g / mol, the melting point is 135-145°C, and the melt viscosity is not higher than 450Pa·s at 165°C; The gemini quaternary ammonium salt is 12-3-12 type Gemini gemini quaternary ammonium salt; the defoamer is simethicone; the leveling agent is a fluorine-containing acrylate leveling agent.

[0049] The filler includes graphite, nano-alumina and modified nano-silicon dioxide, and the mass ratio of the three is 6:6:11. The modified nano-silicon dioxide is prepared by the following method: mixing nano-silicon dioxide Mix silicon oxide, ethanol,...

Embodiment 3

[0055] Take 70 parts of compound shown in Formula 1, 50 parts of polyamide resin, 25 parts of fluorophenylisocyanate curing agent shown in Formula 2, 5 parts of Gemini quaternary ammonium salt, 6 parts of polyethylene wax, 20 parts of filler, 2 parts of defoamer 2 parts and 2 parts of leveling agent.

[0056] Wherein, n in the compound shown in Formula 1 is 3; the terminal group of the polyamide resin is carboxyl group, the molecular weight is 3000-6000g / mol, the melting point is 135-145°C, and the melt viscosity is not higher than 450Pa·s at 165°C; The gemini quaternary ammonium salt is a 12-3-12 type Gemini gemini quaternary ammonium salt; the defoamer is simethicone; the leveling agent is a silicone leveling agent.

[0057] The filler includes graphite, nano-alumina and modified nano-silicon dioxide, and the mass ratio of the three is 7:8:15. The modified nano-silicon dioxide is prepared by the following method: mixing nano-silicon dioxide Mix silicon oxide, ethanol, and e...

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Abstract

The invention belongs to the technical field of coatings, and discloses a wear-resistant self-lubricating anti-icing and anti-fog coating and a preparation method thereof. The wear-resistant self-lubricating anti-icing and anti-fog coating is prepared from a compound shown in a formula I, polyamide resin, gemini quaternary ammonium salt, a fluoro-phenyl isocyanate curing agent, polyethylene wax, afiller, an antifoaming agent and a leveling agent, wherein n is an integer, 1<=n<=10; the terminal group of polyamide resin is carboxyl, and the molecular weight of polyamide resin is 3000-6000 g / mol. The coating is resistant to friction, is not easy to scratch, and has the characteristics of low surface tension, hydrophobicity, ice resistance and fog resistance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a wear-resistant self-lubricating anti-deicing and anti-fog coating and a preparation method thereof. Background technique [0002] With the increasing awareness of environmental protection and the corresponding introduction of environmental protection regulations in various countries, low VOC emissions have become one of the goals pursued by the coatings field. Among them, water-based coatings have outstanding advantages in environmental protection and are research hotspots. Most water-based coatings are mainly based on epoxy ester system. Epoxy ester has the excellent characteristics of epoxy system and drying oil at the same time. It has excellent corrosion resistance, hydrolysis resistance and high hardness, but it has slow drying speed and poor weather resistance. Poor salt spray resistance, insufficient alkali resistance and aging resistance, etc. Compared with water-based coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D177/00C09D7/61C09D7/62C09D7/63C09D7/65C09D5/18C09D5/03
CPCC08K2003/2227C08K2201/011C08L2201/02C09D5/033C09D5/18C09D183/08C08L77/00C08L23/06C08K13/06C08K3/04C08K3/22C08K9/06C08K3/36C08K5/19C08K5/29
Inventor 王文军刘俊锋刘武郑正威李华涛
Owner 广东睿智环保科技股份有限公司
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