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A kind of self-adhesive one-component addition type silicone rubber and its preparation method

A single-component, silicone rubber technology, applied in the field of polymer materials, can solve problems such as poor bonding performance, cumbersome process, and limited use range, and achieve the effects of increasing compatibility, simplifying the preparation process, and improving dispersion efficiency

Active Publication Date: 2021-11-30
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two components need to be mixed before use, the process is cumbersome, and the bonding performance is poor. Generally speaking, due to their respective shortcomings, the scope of use is greatly limited.

Method used

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  • A kind of self-adhesive one-component addition type silicone rubber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment proposes a self-adhesive one-component addition type silicone rubber.

[0048] The silicone rubber is composed of the following components in parts by weight: base rubber: 100 parts, crosslinking agent: 2 parts, tackifier: 3 parts, diluent: 10 parts, polymerization inhibitor: 0.5 parts, Pt catalyst: 1 share.

[0049] Among the above components, each part of the rubber base contains the following parts by weight: vinyl silicone oil: 100 parts, white carbon black: 5 parts, and white carbon black surface treatment agent: 5 parts.

Embodiment 2

[0051] This embodiment proposes a self-adhesive one-component addition type silicone rubber.

[0052] The silicone rubber is composed of the following components in parts by weight: base rubber: 100 parts, crosslinking agent: 10 parts, tackifier: 0.2 parts, diluent: 30 parts, polymerization inhibitor: 5 parts, Pt catalyst: 0.02 share.

[0053] Among the above components, each base rubber contains the following components in parts by weight: vinyl silicone oil: 100 parts, white carbon black: 35 parts, white carbon black surface treatment agent: 50 parts, among which, vinyl silicone oil can be selected Vinyl-terminated silicone oil with a viscosity of 10000cs, white carbon black with a specific surface area of ​​150m 2 / g of meteorological silica, hexamethyldisilazane can be used as the surface treatment agent for silica.

Embodiment 3

[0055] This embodiment proposes a self-adhesive one-component addition type silicone rubber.

[0056] The silicone rubber is composed of the following components in parts by weight: base rubber: 100 parts, crosslinking agent: 5 parts, tackifier: 0.5 parts, diluent: 20 parts, polymerization inhibitor: 2 parts, Pt catalyst: 0.5 parts share.

[0057] Among the above components, each base rubber contains the following components by weight: vinyl silicone oil: 100 parts, white carbon black: 20 parts, white carbon black surface treatment agent: 25 parts, among which, vinyl silicone oil can be used Viscosity of 50000cs with vinyl branched silicone oil in the middle, white carbon black can be selected with a specific surface area of ​​380m 2 / g of precipitated silica, the silica surface treatment agent can choose methyl silicone oil.

[0058] In addition, the cross-linking agent can be selected from the terminal methyl hydrogen-containing silicone oil containing 3 Si-H groups in the...

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Abstract

The invention discloses a self-adhesive one-component addition type silicone rubber and a preparation method thereof. The paste is obtained by kneading vinyl silicone oil and nano silicon dioxide, and then mixed with a crosslinking agent and a tackifier in an appropriate proportion. , polymerization inhibitor and other additives are prepared by defoaming. The preparation process is simple. The prepared silicone rubber product combines the advantages of condensation type and addition type silicone rubber. It has one-component packaging, no small molecules are released during the curing process, and no Deep curing problem, heating and fast curing, easy to use, simple, efficient and other characteristics, more importantly, each component adopts a combination of appropriate proportions, so that it has good bonding performance to a variety of substrates, especially It is difficult to stick materials such as: nickel, silver, gold, nylon 66, PVC, PE, etc., which greatly expands the application range of the existing one-component addition type silicone rubber.

Description

technical field [0001] The invention relates to a self-adhesive one-component addition-type silicone rubber and a preparation method thereof, specifically relates to a synthesis process of one-component addition-type silicone rubber in the field of organosilicon chemistry, and belongs to the technical field of polymer materials. Background technique [0002] As we all know, because silicone rubber material has excellent weather resistance, high and low temperature resistance, and good electrical insulation performance, it can be used outdoors and electronic components for a long time, and has the functions of waterproof, dustproof, and leakage prevention, so as to protect equipment and components. purpose of the device. Usually, silicone rubber is divided into condensation type one-component and addition type two-component. Among them, condensation type silicone rubber is packaged in one component, which is convenient to use and has good bonding performance. However, becaus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08L85/04C08L83/04C08K9/06C08K3/36
CPCC08L83/04C08L2205/025C08L2205/035C08L2312/08C08L85/04C08K9/06C08K3/36
Inventor 暴玉强谢志坚刘彬王强陈世容毛云忠
Owner CHINA BLUESTAR CHENGRAND CO LTD
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