The instant invention pertains to viscous fluid coupling organopolysiloxane compositions comprised of (A) at least one organopolysiloxane fluid that has the general formula
R¹aR²bSiO[4-(a+b)]/2 wherein R¹ is an alkyl group, R² is an aryl group, a + b has the value of 1.95 to 2.05, and b/(a + b) has the value of 0.05 to 0.30; and (B) 0.01 to 5 weight parts by weight per 100 parts by weight of component (A) of a compound with the general formula
wherein each R³ is independently selected from an alkyl group and C has the value of 0 to 2. The viscous fluid coupling organopolysiloxane compositions of the instant invention are capable of withstanding long-term use and under high-temperature, high-shear conditions with little increase or decrease in viscosity and almost no torque fluctuation.
本发明涉及粘性流体偶联有机聚
硅氧烷组合物,该组合物包括(A)至少一种有机聚
硅氧烷流体,其通式为R¹aR²bSiO[4-(a+b)]/2,其中R¹为烷基,R²为芳基,a+b的值为1.(B) 每 100 重量份组分 (A) 中含 0.01 至 5 重量份通式为[4-(a+b)]的化合物。
本发明的粘性流体偶联有机聚
硅氧烷组合物能够在高温、高剪切条件下长期使用,粘度几乎没有增减,几乎没有扭矩波动。