液晶聚合物小直径光缆挤塑工艺研究

基于液晶聚合物挤塑法，提出一种研制小直径光缆的技术途径。描述了液晶聚合物的基本特性，说明了液晶聚合物是小直径光缆的理想挤塑材料。研究了小直径光缆的挤塑工艺参数并根据液晶聚合物的材料特性给出了挤塑工艺流程。采用挤塑方式研制出外径为0.45mm的液晶聚合物小直径光缆，分析了该光缆的基本性能。试验结果表明：挤塑工艺对光纤几乎不产生附加损耗，在-60℃～＋80℃的温度范围内，光缆的附加损耗几乎为零。

Extrusion process for small-diameter fiber cable made of liquid-crystal polymer

A technique for making the small-diameter cable by the extrusion process is proposed.The foundational features of liquid-crystal polymers (LCPs) are described. The results indicate that LCPs are the ideal extrusion materials for optical fiber cables with small diameter.According to the feathers of LCP,extrusion process parameters of small-diameter cable are studied and the process flow is given. A small-diameter cable with outside diameter of 0.45 mm was manufactured with the extrusion process and its properties were analyzed. The test results show that the extrusion process hardly introduces any additional loss to the cable and the additional loss of the cable is almost zero at －60℃ to 80℃.