Abstract

In this work, a phase change material was synthesized from diphenyl methane diisocyanate and polyethylene glycol. Phase change material and polyester masterbatches were blended and granulated by a twin-screw extruder to make blend master batch. According to the result of FTIR, no transesterification reaction was found between phase change material and polyester. Process flow of melt spinning was determined by the results of DSC. The addition of phase change material did not have a big impact on spinnability. Thermo-regulated polyester fibers were prepared by melt spinning. The masterbatch of thermo-regulated polyester has a good fiber forming property. Thermo-regulated polyester fiber has a good storage phase change thermal function. Due to the addition of phase change material, the single fiber strength of polyester was decreased and the elongation at break was improved slightly. The thermo-regulated polyester and polyester had the essentially the same moisture regain and hand feel.

摘要

在这项工作中，以二苯甲烷二异氰酸酯和聚乙二醇为原料合成了一种相变材料。通过双螺杆挤出机将相变材料与聚酯母粒共混造粒，制成共混母粒。FTIR结果表明，相变材料与聚酯没有发生酯交换反应。熔体纺丝的工艺流程由DSC的结果确定。添加相变材料对可纺性没有太大影响。通过熔体纺丝制备温度调节聚酯纤维。调温聚酯母粒具有良好的成纤性能。调温涤纶纤维具有良好的储存相变热功能。由于添加了相变材料，涤纶单纤维强度降低，断裂伸长率略有提高。调温聚酯和聚酯具有基本相同的回潮率和手感。