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Self-adhesion silicon rubber material and preparation method thereof

A silicone rubber and self-adhesive technology, applied in the field of self-adhesive silicone rubber material and its preparation, can solve the problems of cumbersome processing procedures and high requirements on adhesives, and achieve simple and reproducible, good tensile strength and fracture Elongation, good reproducibility

Inactive Publication Date: 2017-02-08
SOUTHWEAT UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The assembly and production methods in the prior art are usually to coat the components or components with an adhesive in advance, or attach a layer of pressure-sensitive adhesive to the surface of the silicone rubber material to achieve better adhesion between each other. , but the disadvantage of this method is that the processing procedure is cumbersome, and the requirements for the binder are high, and the binder usually needs to have good comprehensive properties, such as heat resistance, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1: Take 100 parts of dimethyl silicone rubber and add it to a double-roller mill, masticate it at room temperature for 10 minutes, then add 30 parts of precipitated silica and 3 parts of polymeric hydroxyl silicone oil, and knead for 10 minutes to obtain Initially mix the rubber material and store it statically for 12 hours, then re-mix the initial rubber material at room temperature for 10 minutes, add 4 parts of triallyl cyanurate, and continue mixing for 10 minutes to obtain the mixed material, which is stored again for 48 hours. hour, and then the sizing material was re-milled for 10 minutes at room temperature, and the compounded material was molded into a sheet or a block on a tablet press at room temperature; the rotating drum speed of the two-roll mill was set to 200r.min -1 ;

[0041] Step 2. After the formed sheet or block is wrapped in plastic or aluminum foil, place it in the air at room temperature 60 Radiation cross-linking is carried out in the Coγ ...

Embodiment 2

[0043]Step 1. Take 100 parts of methyl vinyl silicone rubber and add it to a double-roller open mill, masticate at room temperature for 5 minutes, then add 50 parts of fumed silica and 7 parts of low-molecular-weight hydroxy silicone oil, and knead for 10 minutes. Obtain the initial rubber mixture, store it statically for 24 hours, then re-mill the initial rubber mixture for 15 minutes at room temperature, add 5 parts of triallyl cyanurate sensitizer, and continue mixing for 10 minutes to obtain the mixed material. Static storage again for 24 hours, and then the sizing material was re-milled for 10 minutes at room temperature, and the compound was molded into a sheet or block on a tablet press at room temperature; the rotating drum speed of the two-roll mill was set at 600r.min -1 ;

[0044] Step 2. After the formed sheet or block is wrapped in plastic or aluminum foil, place it in the air at room temperature 60 Radiation cross-linking is carried out in the Coγ radiation fie...

Embodiment 3

[0046] Step 1. Take 100 parts of methyl vinyl silicone rubber and add it to a double-roller open mill, masticate it at room temperature for 5 minutes, then add 10 parts of fumed silica and 1 part of low-molecular-weight hydroxy silicone oil, and knead for 5 minutes. The initial mixed rubber was obtained and stored for 12 hours, and then the initial mixed rubber was kneaded at room temperature for 15 minutes, 1 part of 1,6-hexanediol diacrylate was added, and the mixing was continued for 7 minutes to obtain the mixed material. Static storage again for 36 hours, and then the sizing material was re-milled for 10 minutes at room temperature again, and the compounded material was molded into a sheet or block on a tablet press at room temperature; the rotating drum speed of the two-roll mill was set at 200r.min -1 ;

[0047] Step 2. After the formed sheet or block is wrapped in plastic or aluminum foil, place it in the air at room temperature 60 Radiation cross-linking is carried ...

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PUM

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Abstract

The invention discloses a self-adhesion silicon rubber material and a preparation method thereof. The preparation method is characterized in that 100 parts of silicon rubber, 10 to 80 parts of a reinforcing agent, 1 to 9 parts of a controlling agent and 0 to 5 parts of a sensitizing agent are mixed and formed, and then are subjected to gamma-ray radiation to be crosslinked to obtain the self-adhesion silicon rubber material with excellent performance, wherein the radiation absorbed dose is 30 to 100 kGy. The self-adhesionsilicon rubber material and the preparation method thereof have the advantages that the process is simple, complex chemical raw materials and process control or professional auxiliary equipment are not needed, and the cost is relatively low; and the prepared silicon rubber material can be well adhered to various components or assemblies, such as metal, glass, polyethylene, polytetrafluoroethylene and the like, can maintain lasting adhesion, and can effectively prevent the components or the assemblies from falling off or sliding.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, and in particular relates to a self-adhesive silicone rubber material and a preparation method thereof. Background technique [0002] Silicone rubber materials are widely used in the assembly and production of electronic components, equipment components and other supplies. In many cases, it is required to have good adhesion between silicone rubber and components and sub-assemblies to achieve the desired effect. The assembly and production methods in the prior art are usually to coat the components or components with an adhesive in advance, or attach a layer of pressure-sensitive adhesive to the surface of the silicone rubber material to achieve better adhesion between each other. , but the disadvantage of this method is that the processing procedure is cumbersome, and the requirements for the binder are high, and the binder usually needs to have good comprehensive properties, such as he...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08L83/04C08L51/02C08K13/02C08K3/36C08K3/22C08F251/00C08F220/18B29C71/04
CPCB29C71/04C08F251/00C08L83/04C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2312/06C08L83/06C08K3/36C08L51/02C08K13/02C08K2003/2224C08K2003/2227C08F220/1804Y02P20/54
Inventor 宋宏涛
Owner SOUTHWEAT UNIV OF SCI & TECH
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