Premixed fluororubber with high thermal conductivity and preparation method of premixed fluororubber

A technology of fluororubber raw rubber and fluororubber, which is applied in the direction of chemical instruments and methods, heat exchange materials, etc., can solve the problems of inability to achieve high thermal conductivity of nanostructures, high product costs, and expensive carbon nanotubes, etc., to achieve Excellent mechanical properties, good thermal conductivity, and the effect of maintaining thermal conductivity

Active Publication Date: 2018-01-19
成都晨光博达新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the strong direct interaction force of carbon nanotube particles, the agglomeration phenomenon is very serious. If no special process or means are used for treatment, they will not be dispersed, so that the special properties such as high thermal conductivity brought by the nanostructure cannot be realized. In addition, the price of carbon nanotubes and It is expensive, resulting in high product costs and great difficulty in industrial applications

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  • Premixed fluororubber with high thermal conductivity and preparation method of premixed fluororubber

Examples

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Embodiment 1

[0037] This embodiment proposes a high thermal conductivity fluororubber premix, which includes the following components in parts by weight:

[0038] 50 parts of masterbatch, 0.1 part of PFPE derivative, 3 parts of long-chain perfluoroacrylate, 0.1 part of fatty alcohol and 3 parts of silane coupling agent, wherein each masterbatch includes the following components in parts by weight: 1 part of bisphenol AF, 0.2 part of vulcanization accelerator BBP, 1 part of multilayer graphene, 50 parts of fluororubber raw rubber.

[0039] Among the above components, PFPE derivatives are polymers with perfluoropolyether end groups capped with 18 amino groups; long-chain perfluoroacrylates are C16 perfluoroacrylates; fatty alcohols are alcohol mixtures, including 15% C 18 -OH, 15% C 20 -OH, 70% C 22 -OH; the silane coupling agent is an aminosilane coupling agent; bisphenol AF is 2,2-bis-(4-hydroxyphenyl) hexafluoropropane; the vulcanization accelerator BBP is benzyl triphenyl phosphorus chlo...

Embodiment 2

[0041] This embodiment proposes a high thermal conductivity fluororubber premix, which includes the following components in parts by weight:

[0042] 100 parts of masterbatch, 1.5 parts of PFPE derivatives, 10 parts of long-chain perfluoroacrylate, 1.5 parts of fatty alcohol and parts of silane coupling agent, wherein, each part of masterbatch includes the following components in parts by weight: bis 3 parts of phenol AF, 1 part of vulcanization accelerator BBP, 5 parts of multi-layer graphene, 100 parts of fluororubber raw rubber.

[0043] Among the above components, PFPE derivatives are polymers with perfluoropolyether end groups terminated with 18 amino groups; long-chain perfluoroacrylates are C18 perfluoroacrylates; fatty alcohols are alcohol mixtures, including 15% C 18 -OH, 15% C 20 -OH, 70% C 22 -OH; silane coupling agent is epoxy silane coupling agent; bisphenol AF is 2,2-bis-(4-hydroxyphenyl) hexafluoropropane; vulcanization accelerator BBP is benzyl triphenylphosp...

Embodiment 3

[0045] This embodiment proposes a high thermal conductivity fluororubber premix, which includes the following components in parts by weight:

[0046] 80 parts of masterbatch, 1.0 part of PFPE derivative, 6 parts of long-chain perfluoroacrylate, 1.2 parts of fatty alcohol and 4 parts of silane coupling agent, wherein each masterbatch includes the following components in parts by weight: 2 parts of bisphenol AF, 0.8 parts of vulcanization accelerator BBP, 3 parts of multi-layer graphene, 60 parts of fluororubber raw rubber.

[0047] Among the above components, PFPE derivatives are polymers with perfluoropolyether end groups capped with 18 amino groups; long-chain perfluoroacrylates are C16 perfluoroacrylates; fatty alcohols are alcohol mixtures, including 15% C 18 -OH, 15% C 20 -OH, 70% C 22 -OH; silane coupling agent is vinyl silane coupling agent; bisphenol AF is 2,2-bis-(4-hydroxyphenyl) hexafluoropropane; vulcanization accelerator BBP is benzyl triphenyl phosphorus chlorid...

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Abstract

The invention discloses premixed fluororubber with high thermal conductivity and a preparation method of the premixed fluororubber. The premixed fluororubber with high thermal conductivity is preparedfrom components in parts by weight as follows: 50-100 parts of masterbatch, 0.1-1.5 parts of a PFPE derivative, 3-10 parts of long-chain perfluoroacrylate, 0.1-1.5 parts of fatty alcohol and 3-5 parts of a silane coupling agent, wherein each masterbatch comprises 1-3 parts of bisphenol AF, 0.2-1 part of a vulcanization accelerator, 1-5 parts of multilayer graphene and 50-100 parts of raw fluororubber. The formula of the fluororubber is improved, the PFPE derivative, the long-chain perfluoroacrylate, the fatty alcohol and the silane coupling agent in proper ratios are added to the formula, thewettability of fluororubber for heat conducting filler can be improved, so that graphene added to the masterbatch and boron nitride added during rubber mixing have a synergistic effect in heat conductivity, the mechanical performance of the material can be kept while the heat conductivity of the material is ensured, the preparation cost can be effectively controlled, and the cost of the materialcan be controlled within an acceptable level.

Description

technical field [0001] The invention relates to a fluororubber premix with high thermal conductivity and a preparation method thereof, in particular to a modified fluororubber premix with high thermal conductivity and a preparation method thereof, belonging to the field of fluororubber industrial synthesis. Background technique [0002] In the rubber industry, fluorine rubber has excellent properties unmatched by other rubbers, such as high temperature resistance, oil resistance, corrosion resistance to various strong acids and alkalis and chemicals, resistance to ozone and various oxidants, and radiation resistance. Fluorine rubber has been widely used in military aerospace, petrochemical, machinery manufacturing, construction engineering, instrumentation and automobile manufacturing and other fields. The special performance of fluororubber is determined by the structural characteristics of fluorine atoms in its molecule, but it is precisely because of this structural chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L71/00C08K13/04C08K7/00C08K3/04C08K5/136C08K5/544C09K5/14
Inventor 刘皓陈军
Owner 成都晨光博达新材料股份有限公司
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