| 摘要 |
PROBLEM TO BE SOLVED: To provide a curable fluoropolyether rubber composition which gives a cured product excellent not only in resistances to heat, chemicals, and solvents, mold release characteristics, water and oil repellency, weatherability, etc., but also in resistances to acids, alkalis and oxidative degradation, and which can be used in many applications, e.g. as a sealing material for semiconductor production apparatuses; as O-rings, diaphragms, and a sealing material for automobiles and airplanes; as a roll material for copying machines; and an electrode material for secondary cells and fuel cells. SOLUTION: This rubber composition contains (A) a linear fluoropolyether compound having at least two alkenyl groups and a perfluoropolyether structure in the main chain, (B) an organosilicon compound which has at least two Si- bonded hydrogen atoms and of which all the Si-bonded hydrogen atoms constitute the structure represented by H-Si(CaH2a)Si (wherein a is 1, 2 or 3), (C) a hydrosilylation catalyst, and (D) an antioxidant.
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