塑料科技2018，Vol.46Issue(4)：24-28,5.DOI:10.15925/j.cnki.issn1005-3360.2018.04.002
不变动力学参数法研究热固性阻燃聚乳酸的热降解动力学
Study on Thermal Degradation Kinetics of Flame-Retarded Thermosetting Polylactic Acid by Invariant Dynamic Parameter Method
杨凯 1罗顺 1陈勰 1李建波 1任天斌 1任杰1
作者信息
- 1. 同济大学材料科学与工程学院,上海201804
- 折叠
摘要
Abstract
A kind of flame-retarded thermosetting polylactic acid (TPLA) was prepared by using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) as the flame retardant.Then the thermal degradation curves of TPLA and TPLA-DOPO (flame-retarded TPLA) under different heating rate were obtained by thermal gravimetric analyzer (TGA).The thermal degradation kinetics models were founded through application of the invariant kinetic parameter method,and their contribution rates for the 18 kinetic functions were estimated.The results show that,with the increase of the thermal degradation conversion (a),there is a slow upward trend of thermal degradation activation energy of TPLA-DOPO.The addition of flame retardant DOPO improves the thermal stability of TPLA,and changes the contribution rate of the 18 kinetic functions,but not changes the core mechanism of the thermal degradation.关键词
热固性聚乳酸/阻燃/热降解动力学Key words
Thermosetting polylactic acid/Flame retardance/Thermal degradation kinetics分类
化学化工引用本文复制引用
杨凯,罗顺,陈勰,李建波,任天斌,任杰..不变动力学参数法研究热固性阻燃聚乳酸的热降解动力学[J].塑料科技,2018,46(4):24-28,5.
