Preparation method and applications of hydroxyalkyl silicone oil

A technology of hydroxyhydrocarbyl silicone oil and hydrogen-terminated silicone oil, which is applied in the field of preparation of hydroxyhydrocarbyl silicone oil, can solve the problems of ineffective anti-graffiti and anti-fouling coatings, and achieve remarkable effects and simple processes

Inactive Publication Date: 2015-11-04
JIANDE JUHE NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the effect of anti-graffiti and anti-fouling coatings is not obvious, the present invention proposes a preparation method of hydroxyhydrocarbon-based silicone oil, which has a simple process and can be used in anti-graffiti and anti-fouling coatings with remarkable effects

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  • Preparation method and applications of hydroxyalkyl silicone oil
  • Preparation method and applications of hydroxyalkyl silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Synthesis of hydrogen-terminated silicone oil:

[0028] In a 1L four-necked flask equipped with a stirring, thermometer and reflux condenser, add 20 g of hydrogen-containing double-capped heads and 560 g of DMC, add 11.6 g of concentrated sulfuric acid, heat to 35 ° C, and react for 5 hours in equilibrium, then add 24 g of sodium bicarbonate and, filter. Distill at 140°C under reduced pressure to remove the low boiling point to obtain transparent terminal hydrogen silicone oil. The viscosity is 51.8cp, the hydrogen content is 0.052% (mass fraction), and the volatile matter is 4.7%.

[0029] (2) Synthesis of hydroxyhydrocarbyl silicone oil:

[0030] In a 5L four-neck flask equipped with stirring, a thermometer and a reflux condenser, add 1500 g of hydrogen-terminated silicone oil prepared in step (1), 1000 g of toluene, and 110 g of ethylene glycol monoallyl ether, and blow nitrogen. The temperature was raised to 50° C., 600 ul of Karstedt platinum catalyst (self-...

Embodiment 2

[0032] (1) Synthesis of hydrogen-terminated silicone oil:

[0033] In a 1L four-neck flask equipped with a stirring, thermometer and reflux condenser, add 30g of hydrogen-containing double-capped head and 540g of DMC, add 55g of acid clay, heat to 45°C, balance the reaction for 8 hours, add 24g of sodium bicarbonate to neutralize ,filter. Distill at 140°C under reduced pressure to remove the low boiling point to obtain transparent terminal hydrogen silicone oil. The viscosity is 25cp, the hydrogen content is 0.074% (mass fraction), and the volatile matter is 8.1%.

[0034] (2) Synthesis of hydroxyhydrocarbyl silicone oil:

[0035] In a 5L four-neck flask equipped with stirring, a thermometer and a reflux condenser, add 1500 g of hydrogen-terminated silicone oil prepared in step (1), 1000 g of xylene, and 230 g of ethylene glycol monoallyl ether, and blow nitrogen. The temperature was raised to 40° C. and 1 ml of Karstedt platinum catalyst (self-made) was added, and the mixt...

Embodiment 3

[0037] (1) Synthesis of hydrogen-terminated silicone oil:

[0038] In a 1L four-neck flask equipped with a stirring, thermometer and reflux condenser, add 20g of hydrogen-containing double-capped heads and 240g of DMC, add 46.4g of acidic ion exchange resin, heat to 30°C, and perform an equilibrium reaction for 12 hours, then add 24g of sodium bicarbonate Neutralize, filter. Distill at 140°C under reduced pressure to remove the low boiling point to obtain transparent terminal hydrogen silicone oil. The viscosity is 22cp, the hydrogen content is 0.115% (mass fraction), and the volatile matter is 6.3%.

[0039] (2) Synthesis of hydroxyhydrocarbyl silicone oil:

[0040]In a 5L four-necked flask equipped with stirring, a thermometer and a reflux condenser, add 1500 g of hydrogen-terminated silicone oil prepared in step (1), 1000 g of isopropanol, and 130 g of diethylene glycol monovinyl ether, and blow nitrogen. Raise the temperature to 60°C, add 1.2ml of Karstedt platinum cata...

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Abstract

The present invention relates to the technical field of coating material additives. In order to solve the problem of not significant effect of the anti-doodle and anti-fouling coating material, the present invention provides a hydroxyalkyl silicone oil preparation method, wherein mixed siloxane is adopted as a raw material and is balanced under the acid catalysis effect to obtain hydrogen-terminated silicone oil, nitrogen introducing and solvent adding are performed under the platinum catalyst effect, and the hydrogen-terminated silicone oil and olefin alcohol are subjected to a hydrosilylation reaction to obtain the hydroxyalkyl silicone oil. According to the present invention, the process is simple, the hydroxyalkyl silicone oil is applied in the anti-doodle and anti-fouling coating material, and the effect is significant.

Description

technical field [0001] The invention relates to the technical field of coating additives, in particular to a preparation method and application of a hydroxyalkyl silicone oil. Background technique [0002] In recent years, with the development of the economy, in many cities, the walls of stop signs covered with small advertisements can be seen everywhere, which have to be manually removed every year, and the effect is not ideal. This phenomenon is called "Graffiti" abroad, and it not only affects the appearance of the city , also consumes economic expenditure. In addition, more and more PU synthetic leather and water-based paint are used in home and wall decoration applications. These home and wall decorations are not resistant to stains and graffiti. This problem has affected the market's perception of products. acceptance. [0003] In order to solve these problems, anti-graffiti and antifouling coatings have been developed at home and abroad. The implementation of anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/38C08G77/12C08G77/08C09D5/16C09D175/04
Inventor 李志云尤竞端虞卫东邵慧娟童茂生朱璐丹
Owner JIANDE JUHE NEW MATERIALS
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