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Viton metal laminate

A technology of fluororubber and metal layer, which is applied in the field of fluororubber metal laminates, can solve the problems of unfavorable cost and large environmental load, and achieve the effects of reducing processing costs, extending the service life and improving stability

Active Publication Date: 2015-08-19
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the environmental impact of chromate treatment, the rubber-metal laminate produced by applying a multi-layer coating method after chromate substitution treatment to the metal plate is used instead, due to the complexity of the treatment process. Look, the overall environmental load of the product is large, and it is also unfavorable in terms of cost

Method used

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  • Viton metal laminate
  • Viton metal laminate
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0095] In Comparative Example 1, the amount of the epoxy group-containing silane coupling agent (SH-6040) was changed to 2, 3, 4.6, 7 or 9 parts by weight, respectively.

Embodiment 6

[0097] In Comparative Example 1, instead of the epoxy group-containing silane coupling agent, 5 parts by weight of a methacryloxy group-containing silane coupling agent (Toray Dow Corning product APZ6030) was used.

Embodiment 7

[0099] In Comparative Example 1, instead of the epoxy group-containing silane coupling agent, 5 parts by weight of an acryloxy group-containing silane coupling agent (the product of the same company, KBM5103) was used.

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Abstract

A fluororubber metal-laminate sheet, which comprises a metallic sheet and a vulcanized fluororubber layer provided on the metallic sheet by applying a composition comprising (A) 100 parts by weight of a polyol-vulcanizable fluororubber, (B) 10-50 parts by weight of an amorphous graphite, (C) 15-50 parts by weight of a phenol resin, (D) 2-9 parts by weight of an epoxy group- or (meth)acryloxy group-containing silane coupling agent, (E) 3-20 parts by weight of a polyol-based vulcanizing agent, and (F) 2-9 parts by weight of a vulcanization accelerator to the metallic sheet, followed by vulcanization of the fluororubber composition to form laminate. The fluororubber-metal laminate sheet achieves further improvement in sealability showing the surface smoothness of product, compression resistance showing rubber flowability, etc.

Description

technical field [0001] The present invention relates to fluororubber metal laminates. More specifically, the present invention relates to a fluororubber metal laminate that is effectively used as an automobile gasket or the like. Background technique [0002] As a metal sheet for a gasket with a coating material that can maintain high slidability and non-adhesive (adhesive) properties for a long period of time by suppressing the flow of rubber, and has a small risk of breaking or peeling, it has been proposed to add fluorine per 100 parts by weight 50-200 parts by weight of inorganic lubricants such as graphite, carbon, molybdenum dioxide and 4-16 parts by weight of silane coupling agent are added to the rubber to coat and vulcanize, so that the coating material is formed on the coil A metal backing for a metal backing on a bead plate (see Patent Document 1). [0003] In the above solution, the purpose of adding the silane coupling agent is to suppress the flow of the rubb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/06B32B15/082C08K3/04C08K5/541C08L27/12C08L61/04F16J15/10F16J15/12
CPCF16J2015/0856C08K3/04F16J15/122C08L61/04C08L27/12F16J15/0818C09D127/12C08K5/053C08K5/541C08L27/04C08L61/06C08K13/02C08L63/04C08K5/13C08K5/5419
Inventor 木村奈津美北岛康朗
Owner NOK CORP
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