The effects of the factors, such as PTA quality, EG/PTA mol ratio, esterification temperature and pressure, production load and polycondensation vacuum etc. , on diglycol(DEG) content in polyester chips were discussed.

• 探讨了 PTA质量、EG/ PTA摩尔比、酯化温度、酯化压力、生产负荷和缩聚真空度等因素对聚酯切片中二甘醇 (DEG)含量的影响。