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Low temperature resistant silicone rubber material and preparation method thereof

A low phenyl silicone rubber and silicone rubber technology, applied in the field of silicone rubber, can solve the problem that the low temperature resistance cannot meet the needs of special fields, and achieve the effects of good aging resistance, excellent low temperature resistance and broad application prospects.

Inactive Publication Date: 2015-01-28
天长市荣盛有机硅科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

With the development of science and technology, higher requirements have been put forward for the low temperature resistance of silicone rubber. However, the low temperature resistance of silicone rubber in the existing market can no longer meet the needs of special fields.

Method used

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  • Low temperature resistant silicone rubber material and preparation method thereof

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Embodiment Construction

[0010] A low temperature resistant silicone rubber material, made from the following weight (kg) raw materials: low phenyl silicone rubber 100, diethyl silicone rubber 50, triallyl cyanurate 8, tetraethylene glycol 4 , yellow mud powder 12, hydroxyl terminated polybutadiene 8, dibutyltin dichloride 2.5, polycarbodiimide 2, trimethylolpropane cocoate 4, polyether epoxy co-modified silicone oil 6 , Erucamide 3.5, Diisobutyl Nylonate 8, Triethylene Glycol Diisooctanoate 12, Basic Magnesium Sulfate Whisker 14, 4,4-Stilbene Diphenylamine 2.5, Tetramethyl Autumn Disulfide Lamb 1.5, Auxiliary 4;

[0011] The preparation method of described auxiliary agent is as follows: a, get the raw material of following weight (kg): rosin pentaerythritol ester 5, 4,5-epoxycyclohexane-1,2-dicarboxylate diglycidyl ester 3, zirconium fluoride 8. Phosphorothioate triphenyl isocyanate 3, 4,4'-biphenol 1.5, triisopropanolamine cyclic boronate 4, 2,2-dithienyl glycolic acid methyl ester 2.5, bon...

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Abstract

The invention discloses a low temperature resistant silicone rubber material and a preparation method thereof. The rubber material consists of the following raw materials by weight: 90-110 parts of low phenyl silicone rubber, 40-60 parts of diethyl silicone rubber, 5-10 parts of triallyl cyanurate, 3-6 parts of tetraethylene glycol, 10-15 parts of yellow mud powder, 5-10 parts of hydroxyl terminated polybutadiene, 2-3 parts of dibutyltin dichloride, 1.5-2.5 parts of polycarbodiimide, 3-5 parts of trimethylolpropane cocoate, 4-8 parts of polyether epoxy modified silicone oil, 2.5-4.5 parts of erucyl amide, 5-10 parts of diisobutyl ester of nylon acids, 10-15 parts of triethylene glycol di-2-ethylhexoate(triglycol dioctate), 12-16 parts of basic magnesium sulfate whisker, 2-3 parts of 4,4-dityrenated diphenylamine, 1-2 parts of tetramethylthiuram disulfide and 3.5-4.5 parts of an assistant. The silicone rubber product provided by the invention has stable performance and excellent resistance to low temperature performance, and can work in cold conditions over a long period of time and still keep high tensile strength, tear strength and high elongation at break; and the silicone rubber material has good aging resistance, fatigue resistance and oil resistance, fully meets the usage requirements of cold areas in northern China, and shows broad application prospect.

Description

technical field [0001] The invention relates to a low temperature resistant silicone rubber material and a preparation method thereof, belonging to the technical field of silicone rubber. Background technique [0002] Silicone rubber is a polymer material with polysilane as the main chain. Due to the non-polarity and weak intermolecular interaction of the main chain silicon-oxygen segment, it has good thermal stability, weather resistance, aging resistance and electrical properties. Its mechanical properties are quite stable in a wide temperature range (-50~120℃), and it has been widely used in aerospace, electrical and electronic industries and other fields. With the development of science and technology, higher requirements are also put forward for the low temperature resistance of silicone rubber. However, the low temperature resistance of silicone rubber in the existing market can no longer meet the needs of special fields. Therefore, it is necessary to modify the silic...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K13/04C08K7/08C08K5/3492C08K5/06C08K5/20C08K5/40B29C35/02
Inventor 李保生
Owner 天长市荣盛有机硅科技有限公司
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