| 摘要 |
<p>A fluorine-containing elastomer having a copolymer composition, which comprises (a) 50-85mol.% of vinylidene fluoride, (b) 0-25mol.% of tetrafluoroethylene, (c) 7-20mol.% of perfluoro(methyl vinyl ether), (d) 2.5-15mol.% of CF 2 =CFO[CF 2 CF(CF 3 )O]nCF 3 (n : 2-6), (e) 0.1-2mol.% of CF 2 =CFO[CF 2 CF(CF 3 )O]mCF 2 CF 3 (m : 2-6), and (f) 0.1-2mol.% of RfX (Rf : an unsaturated fluorohydrocarbon group having 2-8 carbon atoms, which can contain at least one ether bond, X : bromine or iodine), can provide a fluorine-containing elastomer composition, which comprises 100 parts by weight of the fluorine-containing elastomer, 0.1-10 parts by weight of an organic peroxide, 0.1-10 parts by weight of a polyfunctional unsaturated compound, and at least 2 parts by weight of an acid acceptor. The composition can give vulcanizates having a distinguished elongation at break at high temperatures such as 100°C, and distinguished compression set characteristics at low temperatures such as 0°C.</p> |
