Medical silicone rubber and production process thereof

A production process and technology of silicone rubber, applied in the field of silicone rubber, can solve the problems of poor flexibility, difficult application, poor biocompatibility and permeability of silicone rubber, and achieve biological aging resistance, uniform vulcanization, and excellent physiological inertness. Effect

Pending Publication Date: 2021-06-01
东莞市贝克摩尔高性能材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, silicone rubber is difficult to use in medical treatment because of its poor softness, poor biocompatibility and permeability. Therefore, we propose a medical silicone rubber and its production process.

Method used

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  • Medical silicone rubber and production process thereof
  • Medical silicone rubber and production process thereof
  • Medical silicone rubber and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A medical silicone rubber, consisting of the following raw materials in parts by weight:

[0038]

[0039] A kind of production technology of silicone rubber for medical treatment, following steps:

[0040] S1, weighing the above raw materials by weight;

[0041] S2. Put the rubber raw material into the rubber mixing machine for mastication, add one-half of the white carbon black after the rubber roll, adjust the width of the roller, turn over the rubber material, mix and finally beat it into a film with a thickness of 5-8mm. Put it into the electric heating drying box for heat treatment, take it out and age it in the dryer, add vulcanizing agent to the aged rubber material on the open mill, let the curing agent evenly eat into the rubber material, and punch it out of the machine;

[0042] S3, add the refined silicone rubber to the rubber mixing machine to cover the roll again, add the control agent and the remaining 1 / 2 of the white carbon black, thin pass 5 times,...

Embodiment 2

[0045] A medical silicone rubber, consisting of the following raw materials in parts by weight:

[0046]

[0047] A kind of production technology of silicone rubber for medical treatment, following steps:

[0048] S1, weighing the above raw materials by weight;

[0049] S2. Put the rubber raw material into the rubber mixing machine for mastication, add one-half of the white carbon black after the rubber roll, adjust the width of the roller, turn over the rubber material, mix and finally beat it into a film with a thickness of 5-8mm. Put it into the electric heating drying box for heat treatment, take it out and age it in the dryer, add vulcanizing agent to the aged rubber material on the open mill, let the curing agent evenly eat into the rubber material, and punch it out of the machine;

[0050] S3, add the refined silicone rubber to the rubber mixing machine to cover the roll again, add the control agent and the remaining 1 / 2 of the white carbon black, thin pass 5 times,...

Embodiment 3

[0053] A medical silicone rubber, consisting of the following raw materials in parts by weight:

[0054]

[0055]

[0056] A kind of production technology of silicone rubber for medical treatment, following steps:

[0057] S1, weighing the above raw materials by weight;

[0058] S2. Put the rubber raw material into the rubber mixing machine for mastication, add one-half of the white carbon black after the rubber roll, adjust the width of the roller, turn over the rubber material, mix and finally beat it into a film with a thickness of 5-8mm. Put it into the electric heating drying box for heat treatment, take it out and age it in the dryer, add vulcanizing agent to the aged rubber material on the open mill, let the curing agent evenly eat into the rubber material, and punch it out of the machine;

[0059] S3, add the refined silicone rubber to the rubber mixing machine to cover the roll again, add the control agent and the remaining 1 / 2 of the white carbon black, thin pas...

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PUM

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Abstract

The invention relates to the technical field of silicone rubber, and discloses medical silicone rubber, which is prepared from the following raw materials in parts by weight: 100 parts of rubber raw materials; 45 to 55 parts of white carbon black; 3-8 parts of a vulcanizing agent; 2-3 parts of a control agent; 1-2 parts of hydrogen-containing silicone oil; 3-5 parts of a heat-resistant additive; 1-3 parts of an inhibitor; and 1-2 parts of a catalyst. According to the medical silicone rubber and the production process, the rubber raw materials are refined twice, a platinum complex is used as a catalyst, hydrogen-containing silicone oil is used as a cross-linking agent, vinyl at the tail end and in the middle of polysiloxane and the cross-linking agent are subjected to an addition reaction, and a silicone rubber product is free of generation of low-molecular substances, uniform in vulcanization and excellent in reversion resistance.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a medical silicone rubber and a production process. Background technique [0002] Silicone rubber refers to the rubber whose main chain is composed of silicon and oxygen atoms alternately, and there are usually two organic groups attached to the silicon atoms. Ordinary silicone rubber is mainly composed of silicone chains containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high and low temperature resistance of silicone rubber, and the introduction of trifluoropropyl and cyano can improve the temperature and oil resistance of silicone rubber. Silicone rubber has good low temperature resistance, and generally can still work at -55°C. After introducing phenyl, it can reach -73°C. The heat resistance of silicone rubber is also outstanding. It can work for a long time at 180 °C, and it can withstand a few weeks or longer ...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/05B29B7/46B29C35/04B29C48/00
CPCC08L83/04B29B7/46B29C35/04B29C48/022C08L2205/025C08L2201/08
Inventor 林孝容纪超何艳玲何笑梅曾伟怀何伟锋陈超群罗桂平
Owner 东莞市贝克摩尔高性能材料有限公司
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