纤维增强热塑性塑料中纤维含量的精确调控

研究了双螺杆挤出机生产纤维增强热塑性塑料时,纤维股数、双螺杆转速、塑料喂料量与纤维含量的关系,通过调节此三个参数,纤维含量可精确控制在±0.1wt％的范围内.当主机螺杆转速和塑料喂料量,或纤维股数和塑料喂料量同时增加,挤出造粒产量将提高相同倍数,而纤维含量保持不变.本方法高效可行、精确可控,容易为操作者所掌握,特别适用于指导生产实践.

Precise Control of Fiber Content in Fiber Reinforced Thermoplastic

The relationship among the number of skein,twin screw extruder rotating speed,adding amount of
plastic and fiber content was studied in the process of production of fiber reinforced thermoplastic by twin screw extruder.
Fiber content could controlled precisely in the range of ±0. 1wt% by adjusting the three parameters forward.
When the twin screw extruder rotating speed and adding amount of plastic,or the number of skein and adding amount
of plastic were increased simultaneously, the output of extrusion was improved at the same multiple and the fiber content
maintained invariably. These method were efficient,feasible,accurate and controllable,and could be comprehended
easily by operator to direct practice.