A traction drive fluid composition comprising the following component (A),
wherein R1 to R10 are hydrogen, C1-C3 alkyl, or cyclohexyl, Q1 to Q4 are C1-C3 alkyl or cyclohexyl, and n1 to n4 are an integer from 0 to 5; component (B) which is a heat copolymer of a cyclopentadiene compound and a vinyl aromatic hydrocarbon compound or a hydrogenated product of thereof having a softening point of 40°C or higher or a weight average molecular weight of 250 or larger; and, optionally, component (C) which is a compound with a viscosity smaller than that of component (A); a phosphorous compound; and a friction modifier. The composition exhibits a high traction coefficient over a wide temperature range and excellent friction characteristics required for a traction drive device.
一种牵引传动液组合物,包括以下组分 (A)、
其中 R1 至 R10 为氢、C1-C3 烷基或环己基,Q1 至 Q4 为 C1-C3 烷基或环己基,n1 至 n4 为 0 至 5 的整数;组分(B)是
环戊二烯化合物和
乙烯基芳香烃化合物或其氢化产物的热共聚物,其软化点为 40°C 或更高,或重量平均分子量为 250 或更大;组分(C)是一种粘度小于组分(A)的化合物;
磷化合物;以及摩擦改进剂。该组合物在较宽的温度范围内具有较高的牵引系数和牵引驱动装置所需的优异摩擦特性。