【摘要】 PT酸是聚酯生产中主要的单官能团杂质 ,它的存在直接影响聚酯的结晶性能、分子质量及其分布 ,从而对聚酯的内在质量、可纺性及纤维质量产生一定的影响。通过对PT酸影响的分析 ,认为PTA生产中应将PT酸质量分数控制在 15 0× 10 - 6以下更多还原

【Abstract】 PT acid is the main impurity with mono functional group in production of polyester.Its existence has direct effecton crystallizability,molecular mass and its distribution ,so creates a certain effect on inner quality,spinnability of polyester and quality of spinning.Through studing the effect of PT acid,the mass fraction of PT acid must be controlled under 150×10\+\{-6\}.更多还原