合成材料老化与应用2026，Vol.55Issue(3)：11-14,4.
聚乙烯塑料寿命预测方法对比研究
Comparative Study on Life assessment of Polyethylene Plastics
摘要
Abstract
This study aims to address the limitations of traditional air accelerated aging method in predicting the service life of polyethylene plastics.We introduced thermogravimetric analysis and systematically compared the life prediction results of two methods under thermal exposure conditions.A life prediction model based on the Arrhenius equation was established by designing accelerated aging experiments at different temperatures and combining with performance indicators such as fracture elongation.The results showed that the thermogravimetric method significantly shortened the experimental period through dynamic temperature gradient design,and the predicted results were close to traditional thermal aging methods.This study provides a new method for rapid life assessment of polyethylene materials,which has guiding significance for reliability design in engineering applications.关键词
热空气老化/热重点斜法/聚乙烯/寿命预测Key words
thermal aging/thermogravimetric analysis/polyethylene/life assessment分类
化学化工引用本文复制引用
李思敏,颜上凯,郄晶晶,刘琼..聚乙烯塑料寿命预测方法对比研究[J].合成材料老化与应用,2026,55(3):11-14,4.基金项目
广州合成材料研究院有限公司院开发研究基金(KJ06202320805). （KJ06202320805）
