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大多数商业合成纤维通过高分子纺丝并经牵伸形成半晶结构。由于非晶纤维强度有限,因此通常首选结晶度高的纤维。非晶聚合物因具有高透明度和低双折射率的出色特点而应用于光学领域。探究了非晶聚合物的高速熔融纺丝和拉伸,分析所获纤维的力学性能,尤其是弯曲回弹率。弯曲回弹率是制备可用于生产织物的透光聚合物纤维的关键性能。
Most commercial synthetic fibers are polymer-spun and drawn to form a semi-crystalline structure. Due to the limited strength of amorphous fibers, high crystallinity fibers are often preferred. Amorphous polymers are used in the field of optics for their outstanding characteristics of high transparency and low birefringence. The high speed melt spinning and drawing of amorphous polymers were explored, and the mechanical properties of the obtained fibers were analyzed, especially the flexural resilience. Flexural rebound rate is a key property in the preparation of clear polymeric fibers that can be used to make fabrics.