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Low-volatility single-component de-ketoxime type silicone rubber for lamps and preparation method of silicone rubber

A low-volatility, ketoxime technology, applied in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the corrosion damage of PC materials, the limitation of the use of deketoxime silicone rubber, cracking and other problems , to achieve the effect of good adhesion, weather resistance and environmental aging performance

Inactive Publication Date: 2015-02-25
GUANGZHOU HUINA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most lamp bases or lampshades in the prior art are made of PC (polycarbonate). Since ketoxime substances will cause corrosion and damage to PC materials and cause cracking problems, the use of deketoxime-type silicone rubber on lamps has been restricted

Method used

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  • Low-volatility single-component de-ketoxime type silicone rubber for lamps and preparation method of silicone rubber
  • Low-volatility single-component de-ketoxime type silicone rubber for lamps and preparation method of silicone rubber
  • Low-volatility single-component de-ketoxime type silicone rubber for lamps and preparation method of silicone rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. A low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment, the raw materials are composed of:

[0018]

[0019] *The coupling agent is: by weight N-(β-aminoethyl)-Y-aminopropyltrimethoxysilane: Y-(2,3-glycidyloxy)propyltrimethoxysilane=3: 1 mixture.

[0020] 2. The preparation method of a low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment is as follows: mix the above-mentioned raw materials for 30 minutes at a vacuum degree of -0.09Mpa and a stirring speed of 20 Hz, and discharge The product is ready to fill.

Embodiment 2

[0022] 1. A low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment, the raw materials are composed of:

[0023]

[0024] 2. The preparation method of a low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment is as follows: mix the above-mentioned raw materials for 30 minutes at a vacuum degree of -0.09Mpa and a stirring speed of 25 Hz, and discharge The product is ready to fill.

Embodiment 3

[0026] 1. A low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment, the raw materials are composed of:

[0027]

[0028] 2. The preparation method of a low-volatility single-component deketoxime-type silicone rubber for lamps in this embodiment is as follows: mix the above-mentioned raw materials for 40 minutes at a vacuum degree of -0.08Mpa and a stirring speed of 25 Hz, and discharge The product is ready to fill.

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Abstract

The invention discloses low-volatility single-component de-ketoxime type silicone rubber for lamps. The silicone rubber comprises, by weight, 80-110 parts of a, omega-dyhydroxy polydimethyl siloxane, 50-100 parts of calcium carbonate, 1-10 parts of fumed silica, 1-10 parts of neutralizer, 5-30 parts of cross-linking agent, 0.5-5 parts of coupling agent and 0.01-1 part of catalyst, wherein the neutralizer is one or combination of hydrotalcite, aluminum silicate, magnesium silicate, zeolite, bamboo charcoal powder and organic isocyanate. The silicone rubber has the advantages the influence of ketoxime substances on PC materials is eliminated by lowering volatile content, and the rubber does not generate unpleasant smells during actual application, does not corrode and destroy the PC materials and good in cohesiveness.

Description

technical field [0001] The invention relates to the technical field of polymer sealing materials, in particular to a low-volatility one-component deketoxime type silicone rubber for lamps and a preparation method thereof. Background technique [0002] Silicone materials have excellent adhesive properties and weather resistance, and are widely used in construction, automobiles, electronics and other industries, but de-ketoxime-type silicone rubber will release ketoxime substances during the cross-linking reaction, and its volatile content reaches 350μg / g or more. At present, most lamp bases or lampshades in the prior art are made of PC (polycarbonate). Since ketoxime substances will cause corrosion and damage to PC materials and cause cracking problems, the use of deketoxime-type silicone rubber on lamps has been restricted. However, since the by-products of the deketoxime silicone rubber in the crosslinking reaction are much less than the dealcoholized silicone rubber, sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/06C09J11/04
Inventor 李大卿廖帮伟黄剑文黄坚林鸿李彬诚
Owner GUANGZHOU HUINA NEW MATERIAL TECH
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