聚酯类聚合物的共混及复合研究(续二)

Blending of polyester polymers and polyester composite fiber

2复合由于2种组分不同的收缩性,复合纤维具有自卷曲性能,而PET/PTT的热收缩差异,正是制备卷曲纤维所需要的,从而使它有着良好的应用价值。由于弹性纤维氨纶使用时需包覆其他纤维,

The research works of PET/PTT,PET/PBT,PET/PEN polyester blends are reviewed.The transition temperatures,crystallization properties,influence factors for transesterification reaction,determination of transesterification reaction and improved properties of these polyester blends are introduced.The PET/PTT modified composite fiber are also introduced.