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    • 5. 发明授权
    • Fluororubber composition
    • 氟橡胶组成
    • US09441101B2
    • 2016-09-13
    • US14097701
    • 2013-12-05
    • NOK Corporation
    • Atsushi Yokota
    • C08L27/14C08L27/18C08L27/20C08L27/16G11B25/04C08K3/22
    • C08L27/20C08K3/22C08K3/26C08K5/13C08K2003/222C08L27/16C08L27/18G11B25/043
    • Provided is a fluororubber composition which does not deteriorate workability during roll kneading, does not cause foaming during crosslinking and molding, and is capable of giving a crosslinked molded article which exhibits desired hardness and sealing property without using a reinforcing inorganic filler such as carbon black and silica. The fluororubber composition includes, relative to 100 parts by weight of a vinylidene fluoride-copolymerized, fluorine-containing elastomer copolymer having a glass transition temperature and a melting point, no reinforcing inorganic filler, 5 to 100 parts by weight of a PTFE filler, 0.5 to 10 parts by weight of a polyol crosslinking agent, 1 to 15 parts by weight of magnesium oxide, and 0.1 to 2 parts by weight of hydrotalcite. Preferably, 0.1 to 10 parts by weight of a quaternary onium salt crosslinking accelerator is further included.
    • 本发明提供一种氟橡胶组合物,其不会降低辊捏合时的加工性,在交联成型时不会发泡,并且能够得到具有所需硬度和密封性的交联成型体,而不使用增强无机填料如炭黑和 二氧化硅。 氟橡胶组合物相对于100重量份具有玻璃化转变温度和熔点的偏二氟乙烯共聚的含氟弹性体共聚物,不含增强无机填料,5〜100重量份PTFE填料,0.5重量份 至10重量份的多元醇交联剂,1至15重量份的氧化镁和0.1至2重量份的水滑石。 进一步包括0.1至10重量份的季铵盐交联促进剂。