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A kind of solvent-free anti-graffiti anti-stick coating and preparation method thereof

An anti-graffiti, solvent-free technology, applied in the field of coatings, can solve the problems of easy adhesion of dust on the surface, high VOC content, short effect time, etc., achieve good anti-graffiti and anti-bleeding, low surface energy, anti-sticking effect lasting effect

Active Publication Date: 2021-08-20
河北陇能电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These paints have the effect of anti-graffiti and anti-sticking effect for a short time, easy to adhere to the surface of dust, and easy to bleed and leave obvious marks on the oil-based pen. At present, most of the oil-based paints with good performance are high in VOC content and are not environmentally friendly.

Method used

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  • A kind of solvent-free anti-graffiti anti-stick coating and preparation method thereof
  • A kind of solvent-free anti-graffiti anti-stick coating and preparation method thereof
  • A kind of solvent-free anti-graffiti anti-stick coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The raw materials of solvent-free anti-graffiti and anti-stick coating are as follows:

[0028]

[0029] A preparation method of a solvent-free anti-graffiti and anti-sticking coating: step a: add hydroxyl-terminated silicone resin into a kneader, add R8200, knead and disperse at 150-180°C for 2-3 hours; step b: cool down to 60-80°C ℃, add 15-20mPa.s hydroxyl silicone oil and continue kneading and dispersing for 20-30min; Step c: Grind the kneaded and dispersed material on a three-roll machine until the fineness is 20-25 microns; Step d: Add the ground material In the planetary disperser, then sequentially add methyl tributyl ketoxime silane, KH560, 50mPa.s methyl silicone oil, and mercapto silicone oil to stir and disperse for 30 minutes. Step e: Add dibutyltin dilaurate to the above materials, stir and disperse for 20 minutes under vacuum and nitrogen flow to obtain a solvent-free anti-graffiti and anti-stick coating.

Embodiment 2

[0031] The raw materials of solvent-free anti-graffiti and anti-stick coating are as follows:

[0032]

[0033]

[0034] A preparation method of a solvent-free anti-graffiti anti-sticking coating: step a: add hydroxyl-terminated silicone resin into a kneader, add R974, and knead and disperse at 150-180°C for 2-3 hours; step b: cool down to 60-80°C At ℃, add diphenyldihydroxysilane and continue kneading and dispersing for 20-30min; step c: grind the kneaded and dispersed material on a three-roll machine to a fineness of 20-25 microns; step d: add the ground material to the planetary In the disperser, then add vinyl tributyl ketoxime silane, KH560, KH550, 100mPa.s methyl silicone oil, mercapto silicone oil and stir for 30min. Step e: Add stannous octoate to the above materials, stir and disperse for 20 minutes under vacuum and nitrogen gas to obtain a solvent-free anti-graffiti and anti-stick coating.

Embodiment 3

[0036] The raw materials of solvent-free anti-graffiti and anti-stick coating are as follows:

[0037]

[0038]

[0039] A preparation method of a solvent-free anti-graffiti and anti-sticking coating: step a: add hydroxyl-terminated silicone resin into a kneader, add R8200, knead and disperse at 150-180°C for 2-3 hours; step b: cool down to 60-80°C At ℃, add diphenyldihydroxysilane and continue kneading and dispersing for 20-30min; step c: grind the kneaded and dispersed material on a three-roll machine to a fineness of 20-25 microns; step d: add the ground material to the planetary In the disperser, add methyl tributyl ketoxime silane, vinyl tributyl ketoxime silane, KH560, KH550, 50mPa.s methyl silicone oil, and mercapto silicone oil in sequence and stir for 30 minutes. Step e: Add titanium complex to the above materials, stir and disperse for 20 minutes under vacuum and nitrogen gas to obtain a solvent-free anti-graffiti and anti-stick coating.

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Abstract

The invention provides a solvent-free anti-graffiti and anti-stick coating, which is composed of the following raw materials in parts by weight: 100 parts of hydroxyl-terminated silicone resin, 5-15 parts of reinforcing filler, 3-7 parts of crosslinking agent, 3-6 parts of joint agent, 2-6 parts of release agent, 5-8 parts of structure control agent, 5-8 parts of plasticizer, and 0.1-0.5 parts of drier. The coating is one-component and easy to use. It has good anti-graffiti and anti-penetration properties for water-based and oil-based marker pens and self-spray paints.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a solvent-free anti-graffiti and anti-sticking coating, and at the same time, the invention also relates to a preparation method of the coating. Background technique [0002] With the acceleration of urbanization in our country, people's requirements for urban environment are getting higher and higher. In particular, the random posting of malicious graffiti and small advertisements in the city has seriously affected the appearance of the city and people's living environment. In order to solve this problem, people have taken multiple methods and invented multiple coatings to be coated on these buildings, hoping to reach the purpose of anti-graffiti and anti-war posts, and have achieved certain results. These coatings have anti-graffiti and anti-sticking effect for a short time, easy to attach dust to the surface, and easy to bleed and leave obvious marks on oil-based pens. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D5/16C09D7/62C09D7/61C09D7/65
CPCC08L2201/08C08L2205/025C08L2205/03C08L2205/035C09D5/1687C09D183/04C08L83/04C08L83/08C08K9/00C08K3/36C08K5/57C08K13/06
Inventor 王利伟李梓菲李梓璐李梓锴
Owner 河北陇能电力科技有限公司