| 摘要 |
PROBLEM TO BE SOLVED: To provide a millable silicon rubber composition capable of reducing a coefficient of surface friction of a silicone rubber cured product without adding a low viscosity polymer having low compatibility or a polymer not containing an alkenyl group.SOLUTION: The silicone rubber composition comprises: (A) organopolysiloxane containing 0.2 mol% or less of an aliphatic unsaturated group-containing siloxane unit; (B) organopolysiloxane containing at least 6.0 mol% of an aliphatic unsaturated group-containing siloxane unit; (C) reinforcing silica having a specific surface area of 50 m/g or more; and (D) an effective amount of a hardener. The method of reducing a coefficient of kinetic friction of a silicone rubber cured product to 0.4 or below measured by ASTM D1894 comprises compounding 50-99 pts.mass of the (A) constituent, 1-50 pts.mass of the (B) constituent (provided that the total of the (A) constituent and (B) constituents is 100 pts.mass), and 5-100 pts.mass of the (C) constituent.SELECTED DRAWING: None |
