Acrylic acid modified vinyl organic silicon resin and preparation method thereof

A technology of vinyl silicone and acrylic acid, which is applied in coatings, anti-corrosion coatings, paints containing biocides, etc. It can solve the problems of reduced adhesion, insufficient mechanical strength, low silicon content and long-term pollution resistance, and achieves non-volatile High component content, graffiti resistance, stain resistance, and high image clarity

Active Publication Date: 2021-07-20
CHANGZHOU JIANUO ORGANIC SILICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acrylic-modified silicone resin produced by the copolymerization reaction of silicone and acrylic compound has the advantages of hydrophobicity, stain resistance, and high and low temperature resistance of silicone resin and the adhesion and film-forming properties of acrylic resin. , and overcome the shortcomings of insufficient mechanical strength of silicone resin and poor long-term pollution resistance of acrylic resin
At present, there are mainly chemical modification and physical blending methods for organosilicon modified acrylic resins at home and abroad. The performance of products modified by physical methods is not as good as that of chemical methods in most cases, such as adding fluorine or Silicone-containing anti-pollution add

Method used

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  • Acrylic acid modified vinyl organic silicon resin and preparation method thereof
  • Acrylic acid modified vinyl organic silicon resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] 162 parts of vinyl silicone oligomer, 2.4 servium acrylic acid, 127.2 copies of acrylate, 86.4 copies of acrylate, octane octyl acrylate, 168 styrene, 3-3-3- 5.6 parts of mercapto-1-propanol, 222 parts of xylene, and 222 decerites.

[0019] (1) Preparation of vinyl silicone oligomer

[0020] A methyl trichlorosilane (M1), 80 parts of dimethyl dichlorosilane (M2), 80 parts of phenyl trichlorosilane (P1), 120 di-dichlorosilane (P2), methyl 120 parts of vinyl dichlorosilane were sufficiently mixed into 600 parts of xylene, 1200 parts of butanol and 600 parts of water were added, and the hydrolysis temperature was controlled at 5 ° C, 5 hours to complete hydrolysis, washed to pH ≈ 7, decompression The solvent obtains the silicone oligomer.

[0021] (2) 16.2 parts of vinyl organic silicon oligomer, 0.24 parts of acrylic, 12.72 parts of acrylate, 8.64 parts of acrylate, 9.6 parts of acrylate, 16.8 parts of styrene, 0.24 parts of oxide di-tert-butad Base mixed a...

Example Embodiment

[0027] Example 2

[0028] 24 parts of vinyl silicone oligomers, 2.4 servium acrylic acid, 127.2 acrylic acid hydroxybutyl acrylate, 86.4 copies of acrylate, octane octyl acrylate, 168 styrene, 2.4 parts of oxide di-di-ylen, 3- 5.6 parts of mercapto-1-propanol, 222 parts of xylene, and 222 decerites.

[0029] The preparation method is in Example 1.

Example Embodiment

[0030] Example 3

[0031] 50 parts of vinyl silicone oligomer, 2.4 servium acrylic acid, 127.2 acrylic acid hydroxylate, 86.4 servorate but octyl acrylate, 96 servium acrylate, 168 styrene, 3-3-3-3- 5.6 parts of mercapto-1-propanol, 222 parts of xylene, and 222 decerites.

[0032] The preparation method is in Example 1.

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Abstract

The invention belongs to the technical field of organic synthesis, and particularly discloses acrylic acid modified vinyl organic silicon resin and a preparation method thereof. The invention discloses a high-temperature-resistant adhesive which is prepared from the following components in parts by mass: 24 to 299 parts of vinyl organic silicon oligomer, 2 to 3 parts of acrylic acid, 120 to 130 parts of hydroxybutyl acrylate, 80 to 90 parts of butyl acrylate, 90 to 100 parts of 2-ethylhexyl acrylate, 160 to 170 parts of styrene, 2 to 3 parts of di-tert-butyl peroxide, 5 to 6 parts of 3-mercapto-1-propanol, 220 to 240 parts of xylene, and 210 to 230 parts of butyl acetate. The acrylic acid modified vinyl organic silicon resin is high in non-volatile matter content and low in viscosity, so that coating can be cured at room temperature and can also be heated and cured to form a film, and is widely applied to coating of weather-proof, anti-corrosion and anti-fouling equipment such as automobiles, bridges and engineering machinery.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, and in particular relates to an acrylic acid-modified vinyl silicone resin and a preparation method thereof. Background technique [0002] Acrylic resin coatings have excellent adhesion, oxygen resistance, oil resistance, weather resistance, and many monomers, easy synthesis, and low price, so they have been widely used; however, their water resistance, heat resistance, permeability Poor and high surface tension. Silicone resin has Si-0-Si as the main chain, and Si-0-Si bond energy is much greater than C-C bond energy, so silicone has excellent high temperature resistance, oxidative degradation resistance, weather resistance and excellent hydrophobicity, good penetration rate. However, the high cost, poor adhesion and film-forming performance of silicone resin limit its further application. [0003] The properties of silicone resin and acrylic resin are quite different, and they are ...

Claims

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Application Information

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IPC IPC(8): C08F283/12C08F220/06C08F220/20C08F220/18C08F212/08C09D151/08C09D5/08C09D5/16
CPCC08F283/124C09D151/085C09D5/08C09D5/1662C08F220/06C08F220/20C08F220/1804C08F220/1808C08F212/08
Inventor 胡磊杰胡孟进
Owner CHANGZHOU JIANUO ORGANIC SILICON
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