中国塑料2025，Vol.39Issue(6)：31-35,5.DOI:10.19491/j.issn.1001-9278.2025.06.007
PPC与PLA共混物的流变学及力学性能研究
Rheological and mechanical properties of PPC and PLA blends
周琦 1李全 2李雅静 2刘新安 2谷新春 2黄守莹3
作者信息
- 1. 中国化学赛鼎宁波工程有限公司,浙江 宁波 315048||宁波工程学院材化学院,浙江 宁波 315211||天津大学化工学院,天津 300354
- 2. 中国化学赛鼎宁波工程有限公司,浙江 宁波 315048
- 3. 天津大学化工学院,天津 300354
- 折叠
摘要
Abstract
In this study,polylactic acid(PLA)was melt-blended with poly(propylene carbonate)(PPC)at varying com-position ratios using a twin-screw extruder.The thermal stability,mechanical properties,water vapor barrier perfor-mance,and rheological behavior of the PLA/PPC blends were systematically analyzed via differential scanning calorime-try,universal tensile testing,water vapor transmission rate measurements,and rotational rheometry.The results indicat-ed that phase separation occured between PLA and PPC when the PLA/PPC ratio exceeded 20/100.Despite this,the blends exhibited enhanced processing performance,improved water vapor barrier properties,and superior tensile strength.Notably,when the PLA/PPC ratio surpassed 50/100,all evaluated properties,including rheological behav-ior,barrier efficiency,and mechanical performance,demonstrated significant improvement.关键词
聚碳酸亚丙酯/聚乳酸/流变/力学性能/水蒸气阻隔性Key words
polypropylene carbonate/polylactic acid/rheological property/mechanical property/water vapor barrier property分类
化学化工引用本文复制引用
周琦,李全,李雅静,刘新安,谷新春,黄守莹..PPC与PLA共混物的流变学及力学性能研究[J].中国塑料,2025,39(6):31-35,5.
