Method of producing a rubber compound comprising silica

摘要

A method of producing a rubber compound containing silica, the method including a step of dispersing the silica in a polymer base, and a following step of mixing the previously formed mixture with curing agents. The step of dispersing the silica in the polymer base includes the following sequence of operations: soaking the polymer base in a liquid silica precursor to form a swollen polymer; —adding the swollen polymer to an organic solvent, and continually stirring the swollen polymer solution; —adding water and a silica synthesizing catalyst to the swollen polymer solution; —precipitating a polymer gel matrix by adding a precipitating agent; —separating and washing the precipitated polymer gel matrix.

主权项

1. A method of producing a rubber compound comprising silica; said method comprising a step of dispersing the silica in a polymer base, and a following step of mixing with curing agents a mixture obtained from dispersing the silica in the polymer base; the method comprising the step of dispersing the silica in the polymer base comprises the following sequence of operations:
soaking said polymer base in a liquid silica precursor to form a swollen polymer; adding said swollen polymer to an organic solvent, and continually stirring the swollen polymer solution; adding water and a silica synthesizing catalyst to the swollen polymer solution; precipitating a polymer gel matrix by adding a precipitating agent; separating and washing the precipitated polymer gel matrix.