东华大学学报（英文版）2006，Vol.23Issue(2)：96-98,3.
Hydrolysis-resistant Polyethylene Terephthalate (PET) Fiber
Hydrolysis-resistant Polyethylene Terephthalate (PET) Fiber
WANG Yan-ping 1WANG Yi-min 1HE Wei-bo2
作者信息
- 1. State Key Laboratory for Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051
- 2. Yizheng Chemical Fiber Co. Ltd, Yizheng 211900
- 折叠
摘要
Abstract
For certain industrial applications, the mechanical properties of PET fiber can be deteriorated from hydrolysis because the terminal carboxylic groups promote the degradation of macromolecules under high moisture and high temperature. It limits the wide applications of PET fiber in some special cases. In this paper, three additives are selected to improve the hydrolytic stability through the reaction of bi-functional groups on additive molecules with carboxyl groups on PET molecules. The additives can serve not only as hydrolysis stabilizers, but also as agents to increase the molecular weight and consequently to improve PET fiber mechanical properties. PET pellets were blended with additive before spinning, and melt spun into fiber. The fibers were then hydrolyzed in an autoclave by saturated vapor at 140℃ for a period of time. Measurements of intrinsic viscosity, terminal carboxylic group value and strength of polyester fibers were carried out to study the effects of hydrolysis resistance. Results show that 2, 2'-bis (2-oxazoline) has best hydrolysis-resistibility and the chain-extension effect at the same time.关键词
PET/fiber/hydrolysis/carboxylic groups/chain-extensionKey words
PET/fiber/hydrolysis/carboxylic groups/chain-extension分类
化学化工引用本文复制引用
WANG Yan-ping,WANG Yi-min,HE Wei-bo..Hydrolysis-resistant Polyethylene Terephthalate (PET) Fiber[J].东华大学学报（英文版）,2006,23(2):96-98,3.
