The structure and properties of flat section and circular polyester filament were studied through measuring birefringence, sonicmodulus and work coefficient ect.
对扁平形聚酯纤维和圆形聚酯纤维的结构和性能进行了研究。
2
The orientation and crystallinity of the PET fibers were measured by sonic and X-ray diffraction. The feature of modulus-strain curves were discussed from the fiber structure and applications.