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A kind of preparation method of silane peroxide coupling agent

A technology of silane peroxide and coupling agent, which is applied in the field of preparation of silane coupling agent, can solve problems such as single function, and achieve the effects of saving time, saving materials and improving production efficiency

Inactive Publication Date: 2017-02-15
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing silane coupling agent has a single function, and when it is used for inorganic particle modified polymers, it is necessary to add an initiator to realize the polymerization of high polymers, and provides a silane peroxide coupling agent Preparation

Method used

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  • A kind of preparation method of silane peroxide coupling agent
  • A kind of preparation method of silane peroxide coupling agent
  • A kind of preparation method of silane peroxide coupling agent

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specific Embodiment approach 1

[0014] Specific embodiment one: a kind of silane peroxide coupling agent of this embodiment is γ-tert-butylperoxypropyltrimethoxysilane coupling agent, and its structural formula is:

[0015]

specific Embodiment approach 2

[0016] Specific embodiment two: the preparation method of a kind of peroxide silane coupling agent described in specific embodiment one, carry out according to the following steps:

[0017] 1. Mix tert-butanol peroxide and metal sodium or sodium hydroxide in a molar ratio (1-10): 1 in a container, put it into a reaction kettle, protect it with nitrogen, and stir at a temperature lower than 5°C After reacting for 4h-6h, after filtering, the solid phase was washed with chloroform, and then dried in a vacuum oven at a temperature of 30-40°C for 30-60min to obtain sodium tert-butoxide;

[0018] 2. Dissolve the sodium tert-butoxide obtained in step 1 and 3-chloropropyltrimethoxysilane in a molar ratio (1-10): 1 in the solvent, and then put the obtained solution into the reaction kettle , under the protection of nitrogen, under the condition of temperature of 0°C to 30°C, stirring and reacting for 5h to 24h; the solvent is water, toluene or chloroform;

[0019] Three, after the rea...

specific Embodiment approach 3

[0021] Specific embodiment three: the difference between this embodiment and specific embodiment two is the molar ratio (5-8) of tert-butanol peroxide to metallic sodium or sodium hydroxide in step one: 1. Others are the same as in the second embodiment.

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Abstract

A preparation method of peroxide silane coupling agent, the invention relates to a preparation method of silane coupling agent. The invention aims to solve the technical problem that the existing silane coupling agent has single function and needs to carry out the two-step reaction of coating and polymerization when it is used to modify the polymer with inorganic particles. A kind of silane peroxide coupling agent of the present invention is γ-tert-butylperoxypropyl trimethoxysilane coupling agent, and its structural formula is: preparation method: one, prepare sodium tert-butoxide peroxide; two, peroxide Sodium tert-butoxide reacts with 3-chloropropyltrimethoxysilane; 3. Wash and remove sodium tert-butoxide and sodium chloride and toluene mixed in the product; 4. Use n-hexane and ethyl acetate mixed solution as After the extractant is extracted, it is stored at low temperature, filtered, and rotary evaporated to obtain a silane peroxide coupling agent. One end of the coupling agent is a hydrolyzable methoxy group, and the other end is a polymerization-initiating peroxy group, which can be used in the joint reaction of inorganic particle surface modification and graft polymer.

Description

technical field [0001] The invention relates to a preparation method of a silane coupling agent. Background technique [0002] The silane coupling agent is made of silicon chloroform (HSiCl 3 ) and unsaturated olefins with reactive groups are added under the catalysis of primary chlorine acid, followed by alcoholysis. In recent years, the application of silane coupling agent, a polymer material additive, to coat inorganic particles has become more and more extensive. By using silane coupling agent, a "molecular bridge" can be built between the interface of inorganic substances and organic substances, and the two Materials with different properties are connected together to improve the performance of composite materials and increase the bonding strength. [0003] At present, the combined application of inorganic particle surface modification and graft polymer has achieved good results in the modification of polymer matrix. In order to graft and polymerize polymers on the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18C08F292/00C09C3/12C09C3/10C09C1/36
Inventor 王雅珍何子健马立群藏雨孙兆洋
Owner QIQIHAR UNIVERSITY