聚酰亚胺纤维磨打浆工艺的研究

The Study on Beating Process of Polyimide Fibers

采用槽式打浆机(荷兰式打浆机)和PFI磨浆机分别对聚酰亚胺短切纤维进行磨打浆处理,通过光学显微镜对经过磨打浆处理的聚酰亚胺短切纤维进行观察。实验结果表明,聚酰亚胺短切纤维不同于普通植物纤维,纤维表面不存在微细纤维;相比于PFI磨浆机,经槽式打浆机打浆处理后,纤维的分散性能较好,且打浆过程易控制,纤维自身机械性能保持良好。

The Valley beater and PFI mill were used to beat the polyimide fibers, the optical microscope was used to observe the polyimide fiber after beating. Results show that, the polyimide fiber is different from the common plant fibers, the fiber surfaces does not exist the microfibrillar fibers; compared to the PFI mill, the fiber beating after Valley beater, the dispersion properties is better and the beating process is more controllable, the effect to the me- chanical properties is little.