High modulus filaments are melt-spun from polyesters which are derived from certain substituted aromatic diketodiols and aromatic dicarboxylic acids. The polyesters are optically anisotropic in the melt. As-spun filaments from these polyesters can be heat treated while free from tension to increase their tenacity.
高模量丝是由某些取代芳香族二酮二醇和芳香族二
羧酸衍生的聚酯熔融纺制成的。这些聚酯在熔融状态下是光学各向异性的。从这些聚酯中纺制出来的丝可以在无张力的情况下进行热处理,以提高它们的韧性。