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高舒适的复合功能性PET纤维的制备方法此方法包括酯化,缩聚和纺丝工序。酯化过程包括:(1)在255～260℃下,对苯二甲酸与乙二醇和第3组分(脂肪族二羧酸和/或非对位的芳基二羧酸)进行酯化;(2)加入乙二醇,降温至230～235℃,在氮气保护下,加入相对数均分子质量为200～6 000的PEG作为第4组分,质量分数为2%～5%
Highly comfortable composite functional PET fiber preparation method This method includes esterification, polycondensation and spinning process. The esterification process comprises: (1) esterifying terephthalic acid with ethylene glycol and the third component (aliphatic dicarboxylic acid and / or non-para-aryl aryldicarboxylic acid) at 255-260 ° C; (2) adding ethylene glycol and cooling to 230-235 DEG C, adding PEG with relative number average molecular weight of 200-6000 under nitrogen protection as the fourth component, the mass fraction of which is 2% -5%