THE EFFECTS OF INTERNAL STRESS IN THE RELAXED HEAT-SETTING PET FILAMENT ON ITS LATTICE STRAIN
热定型聚酯纤维内应力与晶格变形的关系

Analysis of these experimental results indicated that the crystal structure of polymer fibers differs from that of the small molecular weight substances in that the crystal cell parameters of the former are much more influenced by the internal stresses left in the fiber during the heat setting of the drawn polymer fibers.