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A kind of co-vulcanization method of chlorinated butyl rubber and silicone rubber compound

A technology of chlorobutyl rubber and silicone rubber, applied in the field of co-vulcanization of chlorobutyl rubber and silicone rubber, can solve problems such as poor compatibility, improve wearing comfort, excellent anti-toxic performance, and design reasonable effect

Active Publication Date: 2022-04-05
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2) Chlorinated butyl rubber is a polar rubber, and silicone rubber is a non-polar rubber, and the compatibility between the two is extremely poor.

Method used

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  • A kind of co-vulcanization method of chlorinated butyl rubber and silicone rubber compound
  • A kind of co-vulcanization method of chlorinated butyl rubber and silicone rubber compound
  • A kind of co-vulcanization method of chlorinated butyl rubber and silicone rubber compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of chlorinated butyl rubber and silicone rubber compound vulcanization method, comprises the steps:

[0029] (1) Vulcanize the mixed rubber whose main rubber is chlorinated butyl rubber. The vulcanization conditions are: temperature 151°C, time 10min, pressure 10MPa, use a mold to vulcanize a rubber test piece with a thickness of no more than 0.7mm;

[0030] (2) The vulcanized chlorinated butyl rubber test piece is directly lapped on the silicone rubber compound for mold clamping and vulcanization, such as figure 1 As shown, the vulcanization conditions are set as follows: temperature 153°C, time 12min, pressure 10MPa.

Embodiment 2

[0032] A kind of chlorinated butyl rubber and silicone rubber compound vulcanization method, comprises the steps:

[0033] (1) Vulcanize the mixed rubber whose main rubber is chlorinated butyl rubber. The vulcanization conditions are: temperature 151°C, time 10min, pressure 10MPa, use a mold to vulcanize a rubber test piece with a thickness of no more than 0.7mm;

[0034] (2) The vulcanized chlorinated butyl rubber test piece is coated with silicone rubber adhesive and then stacked with silicone rubber compound for mold clamping and vulcanization. figure 2 As shown, the vulcanization conditions are set as follows: temperature 153°C, time 12min, pressure 10MPa.

Embodiment 3

[0036] A kind of chlorinated butyl rubber and silicone rubber compound vulcanization method, comprises the steps:

[0037] (1) Vulcanize the mixed rubber whose main rubber is chlorinated butyl rubber. The vulcanization conditions are: temperature 151°C, time 10min, pressure 10MPa, use a mold to vulcanize a rubber test piece with a thickness of no more than 0.7mm;

[0038] (2) The vulcanized chlorinated butyl rubber test piece is coated with chlorinated butyl rubber adhesive, and the silicone rubber compound is coated with silicone rubber adhesive, and the two are stacked for mold clamping and vulcanization. image 3 As shown, the vulcanization conditions are set as follows: temperature 153°C, time 12min, pressure 10MPa.

[0039] In the vulcanization process, chlorinated butyl rubber is used in combination with the adhesion promoter TB1 on the surface of the substrate, mainly by using the adsorption principle of the adhesive, so that the molecules of the adhesive TB1 are fully ...

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Abstract

The invention discloses a co-vulcanization method of chlorinated butyl rubber and silicone rubber mixed rubber, which includes: (1) vulcanizing the mixed rubber whose main rubber is chlorinated butyl rubber, and the vulcanized condition is: temperature 151°C , Time 10min, pressure 10MPa, use the mold to vulcanize the rubber test piece with a thickness of no more than 0.7mm; (2), the vulcanized chlorinated butyl rubber test piece is coated with silicone rubber adhesive and then mixed with silicone rubber stacked for mold clamping and vulcanization; or, coated with chlorinated butyl rubber adhesive on the vulcanized chlorinated butyl rubber test piece, and coated with silicone rubber adhesive on the silicone rubber compound, and the two were stacked for compounding. Mold vulcanization; vulcanization conditions are set as: temperature 153°C, time 12min, pressure 10MPa. On the basis of the excellent poison resistance of the existing chlorinated butyl rubber cover body, the present invention paves the way for improving the wearing comfort thereof.

Description

technical field [0001] The invention relates to the technical field of protective mask body materials, in particular to a co-vulcanization method of chlorinated butyl rubber and silicone rubber compound. Background technique [0002] In order to improve the protective performance of the gas mask, improve the wearing comfort of the gas mask, and the airtightness of the mask, countries have been continuously improving the material of the mask. At present, all countries mainly use synthetic rubber based on halogenated butyl rubber as the material of the mask. And continue to explore in its molding process. [0003] At present, chlorinated butyl rubber is used as the main mask body material, so that the mask has better anti-virus performance, but because chlorinated butyl rubber is too "stiff", there are disadvantages of poor wearing comfort; silicone rubber is non-toxic and tasteless , The vulcanized rubber product is extremely soft, has the advantages of good wearing comfort,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/02B29C35/00
CPCB29C35/02B29C35/002
Inventor 魏兆芳孙建东陶采芹蔺凤英王珊程登盛
Owner SHANXI XINHUA CHEM