Preparation and characterization of poly(ethylene terephthalate-co-aliphatic amide) copolymer fibers with excellent hygroscopicity and softness

Lina Sun; Ruishu Zhu; Hongmei HuJianyong YuXueli WangLiqian HuangXiucai Liu

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Preparation and characterization of poly(ethylene terephthalate-co-aliphatic amide) copolymer fibers with excellent hygroscopicity and softness

机译：Preparation and characterization of poly(ethylene terephthalate-co-aliphatic amide) copolymer fibers with excellent hygroscopicity and softness

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摘要

The aliphatic amide with hydrophilic groups and flexible segments are ideal monomers to modify poly(ethylene terephthalate) (PET) fibers. In this paper, two amide monomers, the adipate pentamethylenediamine salts (APs) and its end-capping substances (APA), were used as the modified monomers to prepare copolymers (PET/APs, PET/APA) by copolymerization with PTA and EG. Their chemical structures and compositions were confirmed by ~1H-NMR and ~(13)C-NMR. Copolymers exhibited excellent melt fluidity and a lower glass transition temperature than PET due to the incorporation of flexible segments, and the properties of copolymer PET/APA was more evident than PET/APs. The copolymer fibers were prepared by melt spinning, exhibiting excellent hygroscopicity, softness, and antistatic properties. The moisture regain of PET/APs fibers increased by 39 ～ 200, and the initial modulus decreased by 32 ～ 68 than PET fibers; the moisture regain of PET/APA fibers increased by 53 ～ 213, and the initial modulus decreased by 50 ～ 72 than PET fibers. Which was proportional to the content of modified monomers, and the soft handle was closed to wool fibers. Moreover, PET/APA fibers exhibited better hygroscopicity and softness properties than PET/APs fibers, and the excellent yellow index (b value) by adopting end-capping technology, which broaden the application prospects of PET fibers.

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来源
《Polymers for advanced technologies》 |2022年第12期|4233-4249|共17页
作者
Lina Sun; Ruishu Zhu; Hongmei HuJianyong YuXueli WangLiqian HuangXiucai Liu;
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作者单位

Key Laboratory of Textile Science and Technology, Ministry of Education;

Innovation Center for Textile Science and Technology, Donghua University;

Cathay Biotechnology Incorporation;

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原文格式 PDF
正文语种英语
中图分类高分子化学（高聚物）;
关键词
Copolymer fibers; Hygroscopicity; Poly(ethylene terephthalate); Softness;

Preparation and characterization of poly(ethylene terephthalate-co-aliphatic amide) copolymer fibers with excellent hygroscopicity and softness

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