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    • 1. 发明申请
    • FLUORORUBBER COMPOSITION
    • 氟橡胶组合物
    • WO2013125735A1
    • 2013-08-29
    • PCT/JP2013/055611
    • 2013-02-22
    • DAIKIN INDUSTRIES, LTD.
    • OTA, DaisukeUEDA, AkinoriKADOWAKI, YuuTAEDA, MayukoKITAICHI, MasanoriYAMAMURA, KazuhiroDOI, MichikoFUKUOKA, Shoji
    • C08L27/12B29C33/02B29C35/02C08K3/04B29K27/12B29K105/24B29L30/00
    • C08K3/04C08L27/16
    • Provided is a fluororubber composition having excellent tensile properties at high temperatures. The fluororubber composition comprises a fluororubber (A) and a carbon black (B), and the fluororubber (A) is a vinylidene fluoride-based fluororubber comprising a structural unit (VdF unit) derived from vinylidene fluoride and a structural unit derived from at least one monomer selected from the group consisting of hexafluoropropylene (HFP), 2,3,3,3-tetrafluoro propylene, and perfluoro(alkyl vinyl ether) (PAVE), and the molar ratio of the VdF unit to the structural unit derived from at least one monomer selected from the group consisting of HFP, 2,3,3,3-tetrafluoro propylene, and PAVE is 50/50 to 78/22, wherein the fluororubber composition a difference δG' (G'(1%) - G'(100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G'(1%) denotes a modulus of shearing elasticity at a dynamic strain of 1%, G'(100%) denotes a modulus of shearing elasticity at a dynamic strain of 100%, and G'(1%) and G'(100%) are determined by a dynamic viscoelasticity test carried out on an unvulcanised rubber with a rubber process analyzer (RPA)in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100°C.
    • 提供了一种在高温下具有优异的拉伸性能的氟橡胶组合物。 氟橡胶组合物包含氟橡胶(A)和炭黑(B),并且氟橡胶(A)是包含衍生自偏二氟乙烯的结构单元(VdF单元)和至少衍生的结构单元的偏氟乙烯基氟橡胶 选自六氟丙烯(HFP),2,3,3,3-四氟丙烯和全氟(烷基乙烯基醚)(PAVE)的一种单体,以及VdF单元与衍生自其的结构单元的摩尔比 选自HFP,2,3,3,3-四氟丙烯和PAVE的至少一种单体是50/50至78/22,其中氟橡胶组合物差ΔG'(G'(1%)-G '(100%))为120kPa以上3000kPa以下,G'(1%)表示动态应变为1%时的剪切弹性模量,G'(100%)表示 剪切弹性在100%的动态应变下,G'(1%)和G'(100%)通过动态粘弹性试验 硫化橡胶与橡胶过程分析仪(RPA),测量频率为1Hz,测量温度为100℃。