Silicone rubber foaming material and preparation method thereof

A silicone foaming and liquid silicone technology, applied in the field of silicone rubber, can solve the problems of electronic equipment not working normally, increasing maintenance costs, large compression deformation, etc., and achieve the effects of avoiding fire hazards, reducing maintenance costs, and small compression deformation

Active Publication Date: 2016-12-07
昆山市硕鸿电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, silicone foam materials on the market are widely used in various outdoor communications, electronic lighting cabinets and other fields due to their excellent shock absorption properties, but often cause seal failure due to large compression deformation during use, making electronics The equipment cannot be used normally, which increases the maintenance cost

Method used

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  • Silicone rubber foaming material and preparation method thereof
  • Silicone rubber foaming material and preparation method thereof
  • Silicone rubber foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A kind of silica gel foaming material, it comprises the following components in parts by mass:

[0056]

[0057] In this embodiment, the liquid silica gel is polydimethylsiloxane, the hydrogen content in the hydrogen-containing silicone oil is 0.4wt / %, the viscosity of the liquid silica gel is 10000mPa·s at 25°C, and the viscosity of the methyl vinyl silicone oil The viscosity was 10000 mPa·s at 25°C.

Embodiment 2

[0059] A kind of silica gel foaming material, it comprises the following components in parts by mass:

[0060]

[0061] In this embodiment, the liquid silica gel is polydimethylsiloxane, the hydrogen content in the hydrogen-containing silicone oil is 0.8wt / %, the viscosity of the liquid silica gel is 100000mPa·s at 25°C, and the viscosity of the methyl vinyl silicone oil The viscosity was 100000 mPa·s at 25°C.

Embodiment 3

[0063] A kind of silica gel foaming material, it comprises the following components in parts by mass:

[0064]

[0065] In this embodiment, the liquid silica gel is polydimethylsiloxane, the hydrogen content in the hydrogen-containing silicone oil is 0.6wt / %, the viscosity of the liquid silica gel is 30000mPa·s at 25°C, and the viscosity of the methyl vinyl silicone oil is The viscosity was 20000 mPa·s at 25°C.

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Abstract

The invention relates to the technical field of silicone rubber, in particular to a silicone rubber foaming material and a preparation method thereof. The silicone rubber foaming material is prepared from the following components in parts by mass: 30 to 70 parts of liquid silicone rubber, 5 to 40 parts of methyl vinyl silicone oil, 1 to 5 parts of hydrogen-containing silicone oil, 0.5 to 1.5 parts of platinum catalyst, 0.01 to 0.05 part of inhibitor, 1 to 5 parts of foaming agent, 10 to 50 parts of flame retardant and 10 to 50 parts of reinforcing agent. The silicone rubber foaming material provided by the invention is characterized in that an Si-H bond of the hydrogen-containing silicone oil is activated by the platinum catalyst to generate a silicon hydrogenation addition reaction, so as to form an elastomer with a three-dimensional net structure, so that the silicone rubber foaming material provided by the invention has good flexibility; by adding the foaming agent, dense and uniform pores are formed inside the silicone rubber foaming material, the silicone rubber foaming material has better elasticity and smaller stress relaxation property, a sealing effect of communication equipment is guaranteed, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a silicone foam material and a preparation method thereof. Background technique [0002] Silica gel has the characteristics of organic polymer elastomers and the wide range of high and low temperature adaptability of inorganic substances. It has become the material of choice in military aerospace, medical, automobile, construction and other fields. Foaming silica gel is a foaming agent added to the rubber material. During the vulcanization process, the foaming agent decomposes at high temperature to generate air bubbles, which are wrapped in silicone rubber to form foamed silica gel. The foamed silicone material not only maintains the original excellent properties of silicone, but also has the characteristics of heat insulation, sound insulation, shock absorption, and light weight of the product. The application field of the foamed silicone material has been greatly exten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08L83/04C08L83/08C08K13/04C08K7/24C08K3/22C08K3/38C08K3/36C08J9/10
Inventor 代树高
Owner 昆山市硕鸿电子科技有限公司
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