Fluororubber-metal laminate
A fluororubber and metal layer technology, applied in the field of fluororubber metal laminates, can solve problems such as unfavorable cost and large environmental load, and achieve the effects of reducing processing cost, prolonging service life and improving stability
Active Publication Date: 2012-12-26
NOK CORP
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- Abstract
- Description
- Claims
- Application Information
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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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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, 5 parts by weight of a methacryloxy group-containing silane coupling agent (Toray Dow Corning product APZ6030) was used instead of the epoxy group-containing silane coupling agent.
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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IPC IPC(8): B32B15/06B32B15/082C08K3/04C08K5/541C08L27/12C08L61/04F16J15/10F16J15/12
CPCC08L27/12F16J15/0818C08L61/04F16J2015/0856F16J15/122C08K5/053C08K3/04C09D127/12C08K5/541C08L27/04C08L61/06C08K13/02C08L63/04C08K5/13C08K5/5419
Inventor 木村奈津美北岛康朗
Owner NOK CORP
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