Addition type organic silicon rubber and preparation method thereof

A technology of silicone rubber and addition type, which is applied in the field of silicone rubber and addition type silicone rubber, can solve the problems of high temperature reaction, influence of light transmission, increase of viscosity, etc., so as to reduce the preparation process and improve the mechanical properties , the effect of increasing the crosslink density

Inactive Publication Date: 2021-08-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The photocuring system of this product can well solve the problem of slow reaction and high temperature reaction in traditional thermal curing, and it can be strengthened by adding MQ silicone resin containing vinyl to chemically combine with rubber to increase the crosslinking density. When stressed, it can better disperse the stress and improve the mechanical properties. At the same time, it solves the problem of affecting the light transmittance and increasing the viscosity caused by the enhancement of traditional white carbon black.

Method used

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  • Addition type organic silicon rubber and preparation method thereof
  • Addition type organic silicon rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation of UV curing addition type silicone rubber, adopts following raw material:

[0026] 75 parts of vinyl-terminated silicone oil with a viscosity of 5000cst, 6 parts of 20cst hydrogen-containing silicone oil, 20 parts of 5000cst vinyl MQ silicone resin (vinyl content is 1.5%), mixed and stirred evenly, and then added 0.02 parts of trimethyl (methylcyclo Pentadienyl) platinum (IV), 0.01 part of diethyl fumarate are fully stirred and mixed evenly, then use vacuum to remove air bubbles, and then irradiate with ultraviolet light with a wavelength of 365nm for 5min to obtain the compound disclosed in Example 1. Silicone rubber.

Embodiment 2

[0028] A kind of preparation of UV curing addition type silicone rubber, adopts following raw material:

[0029] 60 parts of vinyl-terminated silicone oil with a viscosity of 5000cst, 8 parts of 20cst hydrogen-containing silicone oil, 30 parts of 5000cst vinyl MQ silicone resin (vinyl content is 1.5%), mixed and stirred evenly, and then added 0.02 parts of trimethyl (methylcyclo Pentadienyl) platinum (IV), 0.01 part of diethyl fumarate are fully stirred and mixed evenly, then use vacuum to remove air bubbles, and then irradiate with ultraviolet light with a wavelength of 365nm for 5min to obtain the compound disclosed in Example 2. Silicone rubber.

Embodiment 3

[0031] A kind of preparation of UV curing addition type silicone rubber, adopts following raw material:

[0032] 55 parts of vinyl-terminated silicone oil with a viscosity of 5000cst, 10 parts of 20cst hydrogen-containing silicone oil, 40 parts of 5000cst vinyl MQ silicone resin (vinyl content is 1.5%), mixed and stirred evenly, and then added 0.02 parts of trimethyl (methylcyclo Pentadienyl) platinum (IV), 0.01 part of diethyl fumarate are fully stirred and mixed evenly, then use vacuum to remove air bubbles, and then irradiate with ultraviolet light with a wavelength of 365nm for 5min to obtain the compound disclosed in Example 3. Silicone rubber.

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Abstract

The invention discloses organic silicon rubber and a preparation method and application thereof, and belongs to the technical field of addition type organic silicon rubber preparation, the organic silicon rubber comprises the following raw materials by weight: 50-100 parts of vinyl silicone oil, 1-20 parts of hydrogen-containing silicone oil, 1-40 parts of a filler, 0.01-1 part of a catalyst, and 0.01-1 part of an inhibitor. The addition type organic silicon rubber adopts a UV light curing form, has the advantages of being safer, more energy-saving, high in curing speed, good in light transmission performance and the like, and can effectively solve the problems of organic solvent use, energy waste, overlong vulcanization time, overhigh temperature and the like of the existing thermocuring addition type organic silicon rubber; MQ resin containing vinyl is added as a reinforcing material so that the mechanical property is greatly improved, and the application range is widened. Due to the excellent properties of safety, no toxicity, easiness in curing, suitability for rapid production and the like, the organic silicon rubber is effectively applied to the fields of medicines, medical cosmetology and electronics, and has great market application and popularization values.

Description

technical field [0001] The invention belongs to the field of addition-type silicone rubber, and more specifically relates to a method for preparing silicone rubber with good performance by UV light curing. Background technique [0002] Because of its excellent temperature resistance, insulation, acid and alkali resistance, no by-products during curing, non-toxic and tasteless, silicone rubber is widely used in aerospace, automobile, electronics, medical and other daily production and life. field. [0003] The principle is that vinyl silicone oil and cross-linking agent hydrogen-containing silicone oil undergo hydrosilylation reaction at room temperature or high temperature through platinum-based catalysts to form a dense three-dimensional network structure, and finally become silicone rubber products. 104559200A introduces a preparation method of a one-component addition-type silicone rubber, and 108219671A introduces a preparation method of a two-component addition-type si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05
CPCC08L83/04C08L2205/03C08L2205/025
Inventor 马庆宇王杨李建权
Owner UNIV OF JINAN
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