申请人:JAPAN SYNTHETIC RUBBER CO., LTD.
公开号:EP0194030A2
公开(公告)日:1986-09-10
A vulcanizable rubber composition comprises (1) 100 parts by weight of a polymer composition comprising
(I) a vinylidene fluoride resin,
(II) at least one acrylic rubber, a,p-unsaturated nitrile-conjugated diene copolymer rubber or hydride of an a,p-unsaturated nitrile-conjugated diene copolymer rubber,
(III) another blendable polymer,
wherein the weight ratio of (I)/[(II) + (III)] is from 5/95 to 60/ 40 and the weight ratio of (II)/(III) is from 100/0 to 50/50, and (2) from 0 to 40 by weight of a plasticizer. Said rubber composition excels not only in heat resistance, gasoline resistance and sour gasoline resistance but also in gasohol resistance and sour gasohol resistance and further has good tensile strength, elongation and balance between gasoline resistance and low-temperature resistance. Therefore, it can be used in the fluid-contacting surface of a diaphragm or as an inner tube of a fuel hose.
一种可硫化橡胶组合物包括 (1) 100 重量份的聚合物组合物,其中包括
(I) 亚乙烯基氟化树脂、
(II) 至少一种丙烯酸橡胶、a,p-不饱和腈-共轭二烯共聚物橡胶或 a,p-不饱和腈-共轭二烯共聚物橡胶的氢化物、
(III) 另一种可混合聚合物、
其中(I)/[(II)+(III)]的重量比为 5/95 至 60/40,(II)/(III)的重量比为 100/0 至 50/50,以及 (2) 增塑剂的重量比为 0 至 40。上述橡胶组合物不仅在耐热性、耐汽油性和耐酸汽油性方面表现出色,而且在耐煤气醇性和耐酸煤气醇性方面也表现出色,并具有良好的拉伸强度、伸长率以及耐汽油性和耐低温性之间的平衡。因此,它可用于隔膜的流体接触面或作为燃油软管的内管。