中国塑料2024，Vol.38Issue(6)：1-11,11.DOI:10.19491/j.issn.1001-9278.2024.06.001
扩链条件对聚丁二酸丁二酯-共-对苯二甲酸丁二酯/滑石粉共混物性能的影响
Effects of chain-extension condition on properties of poly(butylene succinate-co-terephthalate)/talc blends
骆佳伟 1周炳 1王洪学 1贾钦1
作者信息
- 1. 中石化(上海)石油化工研究院有限公司,上海 201208
- 折叠
摘要
Abstract
A multifunctional epoxy polymer was used as a chain extender for poly(butylene succinate-co-terephthalate)(PBST),and the effects of chain extension condition on the properties of PBST/Talc(talcum powder)blends were in-vestigated during the melt-phase reactive extrusion process.The chain extender dosage,reaction temperature,and screw rotational speed were studied as main factors.The primary influence factors and their interactions were identified through an analysis of variance.The results indicated that the influence of chain extender dosage is most significant,followed with a reaction temperature,whereas the influence of screw speed is less.The melting and crystallization temperatures of PBST decreased with an increase in the chain extender dosage,and meanwhile its molecular weight,melt viscosity,and thermal stability increased.The modified PBST compounds presented an increase in the breaking stress but a decrease in the breaking strain with an increase in the chain extender dosage.Response surface analysis indicated that the optimal chain extension condition was a chain extender dosage of 0.66%,a reaction temperature of 200℃,and a screw speed of 300 r/min.关键词
可生物降解聚酯/扩链剂/扩链条件/聚丁二酸丁二酯-共-对苯二甲酸丁二酯/滑石粉Key words
biodegradable polyester/chain extender/chain extension conditions/poly(butylene succinate-co-terephthalate)/talc分类
化学工程引用本文复制引用
骆佳伟,周炳,王洪学,贾钦..扩链条件对聚丁二酸丁二酯-共-对苯二甲酸丁二酯/滑石粉共混物性能的影响[J].中国塑料,2024,38(6):1-11,11.
