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Non-whitening silicone rubber composition and preparation method thereof

A silicone rubber composition, silicone rubber technology, applied in the field of silicone rubber, can solve problems such as whitening, achieve the effect of improving the appearance, and being conducive to popularization and application

Inactive Publication Date: 2017-09-01
DONGGUAN TIANAN SILICONES TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a non-whitening silicone rubber composition and its preparation method, which solves the technical problem of silicone rubber products being whitened after being used for a long time or boiled in water, and improves the performance of silicone rubber products. The beautiful ℃, is conducive to the promotion and application of silicone rubber products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A non-whitening silicone rubber composition, comprising the following components by mass: methyl vinyl silicone rubber: 100 parts, white carbon black: 30 parts, hydroxy silicone oil: 8 parts, internal mold release agent: 0.3 parts, Blowout preventer: 0.5 parts, surfactant: 0.2 parts.

[0020] The internal release agent is a fluorine internal release agent.

[0021] The anti-blooming agent LCTFP101 is selected from special anti-blooming agent for silicone rubber.

[0022] Described surfactant selects 770 silicone rubber surfactants for use.

[0023] The preparation method of described non-whitening silicone rubber composition, comprises the steps:

[0024] (1) Take each component according to the formula;

[0025] (2) Put methyl vinyl silicone rubber into the kneader, add white carbon black into the machine in batches, add hydroxyl silicone oil, anti-blooming agent, internal mold release agent and surfactant at the same time, and mix well;

[0026] (3) Control the te...

Embodiment 2

[0029] A non-whitening silicone rubber composition, comprising the following components by mass: methyl vinyl silicone rubber: 100 parts, white carbon black: 70 parts, hydroxy silicone oil: 4 parts, internal mold release agent: 0.1 part, Blowout preventer: 0.1 part, surfactant: 0.5 part.

[0030] The internal release agent is a fluorine internal release agent.

[0031] The anti-blooming agent LCTFP101 is selected from special anti-blooming agent for silicone rubber.

[0032] Described surfactant selects 770 silicone rubber surfactants for use.

[0033] The preparation method of described non-whitening silicone rubber composition, comprises the steps:

[0034] (1) Take each component according to the formula;

[0035] (2) Put methyl vinyl silicone rubber into the kneader, add white carbon black into the machine in batches, add hydroxyl silicone oil, anti-blooming agent, internal mold release agent and surfactant at the same time, and mix well;

[0036] (3) Control the tempe...

Embodiment 3

[0039] A non-whitening silicone rubber composition, comprising the following components by mass: methyl vinyl silicone rubber: 100 parts, white carbon black: 50 parts, hydroxy silicone oil: 4 parts, internal mold release agent: 0.5 parts, Blowout preventer: 0.4 parts, surfactant: 0.3 parts.

[0040] The internal release agent is a fluorine internal release agent.

[0041] The anti-blooming agent LCTFP101 is selected from special anti-blooming agent for silicone rubber.

[0042] Described surfactant selects 770 silicone rubber surfactants for use.

[0043] The preparation method of described non-whitening silicone rubber composition, comprises the steps:

[0044] (1) Take each component according to the formula;

[0045] (2) Put methyl vinyl silicone rubber into the kneader, add white carbon black into the machine in batches, add hydroxyl silicone oil, anti-blooming agent, internal mold release agent and surfactant at the same time, and mix well;

[0046] (3) Control the te...

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PUM

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Abstract

The invention provides a non-whitening silicone rubber composition. The non-whitening silicone rubber composition is prepared from the following components in parts by mass: 100 parts of methyl vinyl silicone rubber, 30 to 70 parts of white carbon black, 3 to 8 parts of hydroxy silicone oil, 0.1 to 0.5 part of an internal mold-releasing agent, 0.1 to 0.5 part of an anti-frosting agent and 0.2 to 0.5 part of a surfactant. By adopting the non-whitening silicone rubber composition and a preparation method thereof, the technical problem that a silicone rubber product is whitened after being used for a relatively long time or being boiled with water, so that the aesthetic extent of a silicone rubber product is improved and the popularization and application of the silicone rubber product are facilitated.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a non-whitening silicone rubber composition and a preparation method thereof. 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 withst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/06C08K13/02C08K3/36C08K5/00
CPCC08L83/04C08L83/06C08K13/02C08K3/36C08K5/00
Inventor 张劲常成家新成家添
Owner DONGGUAN TIANAN SILICONES TECH
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