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A kind of high-strength low-pressure variable fluorine rubber material and its preparation method

A technology of fluororubber and low-pressure variable, which is applied in the field of high-strength low-pressure variable fluororubber materials and its preparation, and can solve problems such as low strength, restricted application, and large compression permanent deformation

Inactive Publication Date: 2020-10-23
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high viscosity of FKM itself determines that it is difficult to achieve uniform mixing with carbon black with small particle size. It has excellent performance in high temperature resistance, oil resistance, chemical medium resistance, etc., but its low strength restricts its application in more fields
Therefore, in recent years, there have been researches on the use of one-dimensional nanomaterials --- carbon nanotubes to reinforce fluororubber. Although the strength of this rubber has been improved to a certain extent, a negative effect brought by it at the same time is compression permanent deformation. Too large, for sealing materials used in extreme environments, compression set is a key factor, therefore, this compound can not meet the requirements

Method used

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  • A kind of high-strength low-pressure variable fluorine rubber material and its preparation method
  • A kind of high-strength low-pressure variable fluorine rubber material and its preparation method

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Effect test

Embodiment 1

[0018] The embodiment of the present invention provides a high-strength low-pressure variable fluorine rubber material, including the following components in mass fractions: 100 parts of FKM26, 2 parts of active MgO, 3 parts of Ca(OH) 2 , 0.5 parts of palm wax, 0.4 parts of accelerator BPP, 1.0 parts of vulcanizing agent bisphenol AF, 15 parts of carbon black N990, 5 parts of potassium titanate whisker (PTW), 0.5 parts of coupling agent KH550.

Embodiment 2

[0020] The embodiment of the present invention provides a high-strength low-pressure variable fluorine rubber material, including the following components in mass fractions: 100 parts of FKM26, 5 parts of active MgO, 7 parts of Ca(OH) 2 , 1.5 parts of palm wax, 0.7 parts of accelerator BPP, 2.0 parts of vulcanizing agent bisphenol AF, 25 parts of carbon black N990, 9 parts of potassium titanate whisker (PTW), 1.2 parts of coupling agent KH550.

Embodiment 3

[0022] The embodiment of the present invention provides a high-strength low-pressure variable fluorine rubber material, including the following components in mass fractions: 100 parts of FKM26, 4 parts of active MgO, 5 parts of Ca(OH) 2 , 1 part of palm wax, 0.6 parts of accelerator BPP, 1.7 parts of vulcanizing agent bisphenol AF, 20 parts of carbon black N990, 7 parts of potassium titanate whisker (PTW), 0.9 parts of coupling agent KH550.

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Abstract

The invention provides a high-strength ow-pressure-change fluoro-rubber material and a preparation method thereof, and belongs to the technical field of high-performance rubber materials. The technical scheme is that the high-strength ow-pressure-change fluoro-rubber material comprises the following components in parts by mass: 100 parts of fluoro-rubber, 2-5 parts of active MgO, 3-7 parts of Ca(OH)2, 0.5-1.5 parts of palm wax, 0.4-0.7 part of an accelerant, 1.0-2.0 parts of a vulcanizing agent, 15-25 parts of carbon black, 5-9 parts of potassium titanate whisker (PTW) and 0.5-1.2 parts of a coupling agent. A preparation method is also disclosed. The fluoro-rubber material provided by the invention has the beneficial effects that the fluoro-rubber material prepared by the method provided by the invention has high strength, high modulus and low compression permanent deformation, and has excellent high temperature resistance and aging resistance.

Description

technical field [0001] The invention relates to the technical field of high-performance rubber materials, in particular to a high-strength low-pressure variable fluorine rubber material and a preparation method thereof. Background technique [0002] With the development of science and technology, higher requirements are put forward for the comprehensive performance of fluorine rubber (FKM). The high viscosity of FKM itself determines that it is difficult to achieve uniform mixing with carbon black with small particle size. It has excellent performance in high temperature resistance, oil resistance, chemical medium resistance, etc., but its low strength restricts its application in more fields. Therefore, in recent years, there have been researches on the use of one-dimensional nanomaterials --- carbon nanotubes to reinforce fluororubber. Although the strength of this rubber has been improved to a certain extent, a negative effect brought by it at the same time is compressio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08L91/06C08K13/04C08K7/08C08K3/22C08K3/04C08K5/544C08K5/136
CPCC08K2003/2206C08K2003/222C08L27/12C08L2201/08C08L91/06C08K13/04C08K7/08C08K3/22C08K3/04C08K5/544C08K5/136
Inventor 史新妍季行行马岩
Owner QINGDAO UNIV OF SCI & TECH
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