| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid curable fluoropolyether series rubber composition for being excellent in water repellency, oil repellency, solvent resistance, chemical resistance and weatherability, and retaining high hardness, together with obtaining a molding with improved tensile strength, and tear strength. SOLUTION: This curable fluoropolyether series rubber composition comprises (A) 100 pts.wt. of a straight-chain fluoropolyether compound having at least two alkenyl groups in a molecule, and a perfluoroalkyl ether structure in a main chain, (B) 10-40 pts.wt. of a silica series filler with a specific surface of at least 50 m2/g, (C) 2-20 pts.wt. of whisker having a fine fiber shape of a fiber diameter of 0.2-2μm and fiber length of 2-50μm, (D) an organosilicon compound with at least two hydrogen atoms bonded to a silicon atom in a molecule, and (E) a hydrosilylation reaction catalyst.
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