| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and system for efficiently compounding high levels of inorganic filler, a processing fluid and a silicone polymer at a commercial rate into a homogeneous filled and devolatilized silicone composition. SOLUTION: The filled silicone composition is compounded by compounding a filler, a processing fluid and a silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, a processing fluid and a silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus. An extruder transition section of the system includes an enclosed discharge chamber defined by a first sectioning wall, a second sectioning wall and a contoured lower wall that transitions toward a discharge port and a shaft extends through the first sectioning wall, traverses the chamber and extends through the second sectioning wall. |
