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Fluororubber composition and molding articles

A technology of fluororubber and composition, which is applied in the field of fluororubber composition and its molded products for sealing purposes, and can solve the problems of large compression set and short service life

Inactive Publication Date: 2007-10-24
上海道氟实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, carbon black, white carbon black, etc. are commonly used as fillers, which can be used under normal circumstances, but in the case of harsher conditions, such as: separators for deep wells in oil extraction, crankshaft oil seals for automobile engines, and the current fluorine Rubber has problems such as large compression permanent deformation and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Comparison of whisker and non-whisker materials

[0058] carbon black

[0059] carbon black

[0060] It can be seen from the data in the above table that adding ceramic whiskers to fluororubber can significantly increase the 100% modulus and tensile strength of the fluororubber composition, while reducing the % elongation.

Embodiment 2

[0062] Comparison with / without fluorosurfactant

[0063] blank

[0064] blank

[0065] It can be seen from the data in the above table that adding fluorosurfactant to fluororubber can increase the tensile strength and elongation % of the fluororubber composition.

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PUM

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Abstract

The invention discloses a fluororubber rubber composition and moulding product, which comprises the following parts: 100wt% fluororubber, 5-50wt% non-metal whisker and 0. 1-5wt% surface activator. The invention possesses high stretching strength and modulus, which improves heat resistance and abrasion resistance.

Description

technical field [0001] The present invention relates to a fluororubber composition and its molded articles, especially a fluororubber composition and its molded articles for sealing purposes. Background technique [0002] Viton is a kind of high temperature resistant and medium resistant rubber, which is widely used in the manufacture of engine oil seals, sealants and other products. However, the conventional physical properties of fluorine rubber decay quickly under high temperature conditions, so it is necessary to improve the physical properties at room temperature as much as possible. At present, carbon black, white carbon black, etc. are commonly used as fillers, which can be used under normal circumstances, but in the case of harsher conditions, such as: separators for deep wells in oil extraction, crankshaft oil seals for automobile engines, and the current fluorine Rubber has problems such as large compression permanent deformation and short service life. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K7/02C08K5/04C08K5/14
Inventor 赵轶华司徒琛
Owner 上海道氟实业有限公司
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