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A kind of silicon-containing acrylate monomer and its preparation method and application

A silicon acrylate and monomer technology, applied in the field of acrylate monomer preparation, can solve the problems of weak tensile strength, poor adhesion, weak impact resistance, etc., and achieve good impact resistance, easy operation and adhesion Good results

Active Publication Date: 2021-01-12
ZHEJIANG UVCHEM SPECIAL COATINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when applied to glass, metal, etc., it shows shortcomings such as poor adhesion, weak tensile strength, and weak impact resistance, so it cannot be widely used.

Method used

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  • A kind of silicon-containing acrylate monomer and its preparation method and application
  • A kind of silicon-containing acrylate monomer and its preparation method and application
  • A kind of silicon-containing acrylate monomer and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A kind of preparation method of silicon-containing acrylate monomer, concrete steps are as follows:

[0036] Get 396.5kg of 2-hydroxyethyl methacrylate and 0.04kg of 2-tert-butylhydroquinone and 0.035kg of 2,5-di-tert-butylhydroquinone, put them into the reaction kettle, and during the stirring process , according to the molar ratio of 2-hydroxyethyl methacrylate to methyltrichlorosilane 3.05:1, drop methyltrichlorosilane into the reaction kettle for 30min; ℃, keep warm for 120min, and carry out the substitution reaction; during the process of dropping and keeping warm, pass air below the liquid level to drive away the hydrogen chloride produced by the substitution reaction; and the hydrogen chloride produced is passed into the sodium hydroxide aqueous solution through the reflux condenser to be absorbed After the reaction is finished, cool down to room temperature, neutralize the reaction solution with sodium hydroxide ethanol solution to pH 8, let stand to separate th...

Embodiment 2

[0040] A kind of preparation method of silicon-containing acrylate monomer, concrete steps are as follows:

[0041]Get 396.5kg of methacrylic acid-2-hydroxyethyl ester and 0.04kg of 2-tert-butyl hydroquinone, 0.035kg of hydroquinone, put them into the reaction kettle, and in the process of stirring, press methacrylic acid-2- The molar ratio of hydroxyethyl ester to methyltrichlorosilane is 3.05:1, add methyltrichlorosilane dropwise into the reaction kettle for 60 minutes; after the dropwise addition, raise the temperature to 100°C and keep it warm for 240 minutes to carry out the substitution reaction ; In the process of dripping and heat preservation, the hydrogen chloride produced by the replacement reaction is driven away by air below the liquid level of the liquid; the hydrogen chloride produced is absorbed in the aqueous sodium hydroxide solution through the reflux condenser tube; after the reaction is completed, cool down to room temperature , neutralize the reaction sol...

Embodiment 3

[0045] A kind of preparation method of silicon-containing acrylate monomer, concrete steps are as follows:

[0046] Get 396.5kg of 2-hydroxyethyl methacrylate and 0.04kg of 2-tert-butylhydroquinone and 0.035kg of 2,5-di-tert-butylhydroquinone, put them into the reaction kettle, and during the stirring process , according to the molar ratio of 2-hydroxyethyl methacrylate to methyltrichlorosilane 3.05:1, drop methyltrichlorosilane into the reaction kettle for 60 minutes; ℃, keep warm for 360min, and carry out the substitution reaction; during the process of dropping and keeping warm, pass air below the liquid level to drive away the hydrogen chloride generated by the substitution reaction; and the hydrogen chloride produced is passed into the sodium hydroxide aqueous solution through the reflux condenser to be absorbed After the reaction is finished, cool down to room temperature, neutralize the reaction solution with sodium hydroxide ethanol solution to pH 8, let stand to separ...

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Abstract

The invention discloses a silicon-containing acrylate monomer, and a preparation method and application thereof. The silicon-containing acrylate monomer has a structural formula as shown in a formula(I) which is described in the specification. In the formula (I), R1 is CH3 or H; R2 is CH3 or is as described in the specification; and n is 2, 3 or 4. According to inspection results, the silicon-containing acrylate monomer prepared in the invention has the characteristics of good adhesion to glass, metal and other inorganic substrates, high hardness, knock resistance and good impact resistance,and can be used for preparation of violet light-curable coatings.

Description

technical field [0001] The invention relates to the technical field of acrylate monomer preparation, in particular to a silicon-containing acrylate monomer and its preparation method and application. Background technique [0002] Silicone polymer is a new type of material with excellent performance and unique function, and its application is very extensive. [0003] In 1941, American scientists invented the method of directly synthesizing methylchlorosilane under the catalysis of copper powder. Up to now, the scale of production has been continuously expanded and a unique chemical system has been formed; among them, the synthesis of methylchlorosilane is the pillar of this system. [0004] In the process of synthesizing methylchlorosilane by the direct method, the target is dimethyldichlorosilane, and methyltrichlorosilane and silicon tetrachloride are also produced, accounting for about 5-15% of the total amount of monomers. These two chlorosilanes can be used to prepare ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18C07F7/02C09D4/02C09D7/40
CPCC07F7/025C09D4/00
Inventor 陈梦茹戴春晖刘磊张卫宝张忠良
Owner ZHEJIANG UVCHEM SPECIAL COATINGS CO LTD