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High-elongation high-strength precipitation rubber material for producing medical negative pressure balls

A high-strength, negative pressure ball technology, applied in the field of silicone rubber materials, can solve the problems affecting the product yield, insufficient product elasticity, product damage, etc., and achieve the effect of easy coloring and mixing, easy opening and kneading, and good reinforcement effect.

Inactive Publication Date: 2021-09-24
苏州歌诗夫新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shape of the silicone balloon is large in the middle and small openings at both ends, making it difficult for the expanded spherical mold core to come out from the small openings at both ends of the balloon after molding. The product is easily damaged during the extraction process, which greatly affects the product yield.
At present, the production of gas-phase rubber is mainly used in the market. Although the performance of gas-phase rubber is superior, there are also problems of easy sticking to the mold and insufficient elasticity of the product.

Method used

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  • High-elongation high-strength precipitation rubber material for producing medical negative pressure balls
  • High-elongation high-strength precipitation rubber material for producing medical negative pressure balls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-elongation and high-strength precipitation rubber material for producing medical negative pressure balls, comprising the following components by weight ratio: 100 parts of methyl vinyl silicone rubber raw rubber, 20 parts of precipitated white carbon black, 3 parts of hydroxyl silicone oil, 0.5 parts of hydrogen-containing silicone oil, 0.1 part of vinyl silicone oil, 1 part of vulcanizing agent, and 0.1 part of release agent; wherein the methyl vinyl silicone rubber raw rubber includes ultra-high vinyl content raw rubber PS01 and low vinyl content raw rubber PS02, the weight ratio is 6:94.

[0027] Wherein, the specific surface area of ​​the precipitated white carbon black is 175±15m 2 / g.

[0028] And, the hydroxyl mole fraction of the hydroxyl silicone oil is 5%.

[0029] Moreover, the vinyl content of the vinyl silicone oil is 9.5%.

[0030] Also, the vulcanizing agent is 2,5-dimethyl-2,5-di-tert-butylperoxyhexane.

[0031] And, the release agent is zinc ...

Embodiment 2

[0042] A high-elongation and high-strength precipitation rubber material for producing medical negative pressure balls, comprising the following components by weight ratio: 200 parts of methyl vinyl silicone rubber raw rubber, 60 parts of precipitated white carbon black, 10 parts of hydroxyl silicone oil, 1 part of hydrogen-containing silicone oil, 0.5 part of vinyl silicone oil, 3 parts of vulcanizing agent, and 0.5 part of release agent; wherein the methyl vinyl silicone rubber raw rubber includes ultra-high vinyl content raw rubber PS01 and low vinyl content raw rubber PS02, the weight ratio is 8:92.

[0043] Wherein, the specific surface area of ​​the precipitated silica is 190m 2 / g.

[0044] And, the hydroxyl mole fraction of the hydroxyl silicone oil is 5%.

[0045] Moreover, the vinyl content of the vinyl silicone oil is 9.5%.

[0046] Also, the vulcanizing agent is 2,5-dimethyl-2,5-di-tert-butylperoxyhexane.

[0047] And, the release agent is zinc stearate.

[00...

Embodiment 3

[0058] A high-elongation and high-strength precipitation rubber material for producing medical negative pressure balls, comprising the following components by weight ratio: 150 parts of methyl vinyl silicone rubber raw rubber, 40 parts of precipitated white carbon black, 6.5 parts of hydroxyl silicone oil, 0.75 parts of hydrogen-containing silicone oil, 0.3 parts of vinyl silicone oil, 2 parts of vulcanizing agent, and 0.3 parts of release agent; wherein the methyl vinyl silicone rubber raw rubber includes ultra-high vinyl content raw rubber PS01 and low vinyl content raw rubber PS02, the weight ratio is 7:93.

[0059] Wherein, the specific surface area of ​​the precipitated silica is 185m 2 / g.

[0060] And, the hydroxyl mole fraction of the hydroxyl silicone oil is 5%.

[0061] Moreover, the vinyl content of the vinyl silicone oil is 9.5%.

[0062] Also, the vulcanizing agent is 2,5-dimethyl-2,5-di-tert-butylperoxyhexane.

[0063] And, the release agent is zinc stearate....

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Abstract

The invention discloses a high-elongation high-strength precipitation rubber material for producing medical negative pressure balls. The rubber material comprises the following components in parts by weight: 100-200 parts of methyl vinyl silicone rubber raw rubber, 20-60 parts of precipitated white carbon black, 3-10 parts of hydroxyl silicone oil, 0.5-1 part of hydrogen-containing silicone oil, 0.1-0.5 part of vinyl silicone oil, 1-3 parts of a vulcanizing agent and 0.1-0.5 part of a release agent, wherein the methyl vinyl silicone rubber raw rubber comprises raw rubber PS01 with ultrahigh vinyl content and raw rubber PS02 with low vinyl content, and the weight ratio of the PS01 to the PS02 is (6-8):(92-94). According to the high-elongation high-strength precipitated rubber material for producing the medical negative pressure balls, the raw rubber with the ultrahigh vinyl content and the raw rubber with the low vinyl content are compounded, so that the vulcanized rubber material forms an island-shaped cross-linked structure with local high-density cross-linking points, and the obtained precipitated rubber material is easy to mill, does not stick a roller, is easy to batch off, and is good in strength and tear resistance.

Description

technical field [0001] The invention belongs to the technical field of silicone rubber materials, in particular to a high-elongation and high-strength precipitation rubber material used for producing medical negative pressure balls. Background technique [0002] Silicone negative pressure ball is widely used in the medical industry due to its environmental protection and non-toxic characteristics. However, the shape of the silicone balloon with a large middle and small openings at both ends makes it difficult for the formed expanded spherical core to come out from the small openings at both ends of the balloon. The product is easily damaged during the extraction process, which greatly affects the product yield. At present, most of the products used in the market are based on the production of gas-phase rubber. Although the performance of gas-phase rubber is superior, there are also problems such as easy sticking to the mold and insufficient product elasticity. [0003] Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L83/05C08K7/26C08K5/14
CPCC08L83/04C08L2205/025C08L2205/035C08K2201/006C08K7/26C08K5/14
Inventor 高艳玲聂春辉周毅吴家豪王浩
Owner 苏州歌诗夫新材料有限公司