共聚酯PEIT-PEG结构与性能的研究

Study on the Structure and Properties of Poly(ethylene terephthalate-co-isophthalate)-Poly(ethylene glycol) (PEIT-PEG) Copolyester

摘要: PET与PEG共聚可改善PET的抗静电性，但PEG含量的增加，会使共聚物的结晶温度大幅度地降低，不利于纤维加工，且伴随着结晶的发生，纤维的抗静电性也受到影响。在共聚体系中添加间苯二甲酸(IPA)，不仅能破坏大分子链结构的规整性、降低共聚酯的结晶性，而且能提高共聚酯纤雏的抗静电性能。用DSC与TG对共聚酯(PEIT-PEG)的聚集态结构、热性能、结晶性能等进行了表征。

Abstract: PET copolymerized with PEG can improve PET's antistatic properties but with the content of PEG in the copy-lyme increasing, the crystallization temperature of the copolymers decreases a lot, which is not favorable for spinning. Further more the fiber's an