| 摘要 |
PURPOSE: To obtain the subject composition excellent in electrical conductivity and capable of providing a crosslinked coating film having low viscosity, low hardness, etc., by blending iodineand/or a bromine-containing fluororubber with an onium salt compound, an electroconductive filler, a crosslinking agent and a peroxide compound at a specific ratio. CONSTITUTION: This composition is obtained by blending (A) 100 pts. wt. of an iodine- and/or bromine-containing fluororubber with (B) preferably 0.1-20 pts.wt. of an onium salt compound of the formula (R<9> us a 1-20C alkyl, allyl, etc.; R<10> to R<12> are each an aryl or a substituted aryl; A is an anion such as a halide, a sulfate or a sulfite), (C) 1-20 pts.wt. of an electroconductive filler (preferably 30-400ml/100g as DBP oil absorbing amount) (D) 0.1-10 pts.wt. of a crosslinking agent, (E) 0.1-10 pts.wt. of a peroxide compound. The electroconductive fluororubber molding is obtained by foaming, crosslinking and molding a composition containing (F) a foaming agent in addition to the above components of the composition. The electroconductive fluororubber molding is preferably a coating film having 40-50Hs (Typec) hardness and 10<6> to 10<11>Ωresistance.
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