中国塑料2024，Vol.38Issue(8)：13-19,7.DOI:10.19491/j.issn.1001-9278.2024.08.003
聚乙醇酸高温降解性能研究及其调控方法
Study on high temperature degradation performance of poly(glycolic acid)and its regulation method
王兴国 1吕明福 1黄逸伦 1郭鹏 1高达利 1张师军1
作者信息
- 1. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
This work evaluated the degradation property of poly(glycolic acid)(PGA)at different temperature as well as different pH environment.The change of crystallization and thermal stability properties during degradation was studied,and the degradation product of PGA was analyzed by liquid chromatograph-mass spectrometer.Thereafter,PGA was separately modified using anti-hydrolysis agent HyMax@210 and chain extender ADR-6488,and the effects of the two additives on melt fluidity,thermal stability,mechanical properties and degradation performance of PGA were studied.The results indicated that the degradation performance of PGA in high temperature aqueous solution was much better than that of traditional degradable materials.PGA degraded completely at 130℃for 10 h in aqueous solution,and the degradation product was mainly glycolic acid trimers.Increasing pH value promoted the degradation of PGA.The ther-mal stability and mechanical properties of PGA was improved at the present of anti-hydrolysis and chain extender,and the degradation rate of that was delayed.关键词
聚乙醇酸/降解性能/降解机理/扩链剂/抗水解剂Key words
poly(glycolic acid)/degradation performance/degradation mechanism/anti-hydrolysis/chain extender分类
化学化工引用本文复制引用
王兴国,吕明福,黄逸伦,郭鹏,高达利,张师军..聚乙醇酸高温降解性能研究及其调控方法[J].中国塑料,2024,38(8):13-19,7.
