环氧脂肪酸多酯生物基增塑剂制备及其耐迁移性能
Preparation and migration resistance of epoxidized fatty acid multi-ester bio-plasticizer
杨超群 1潘思宇 1侯德隆 1陈意1
作者信息
- 1. 四川大学轻工科学与工程学院,成都 610065
- 折叠
摘要
为提高聚氯乙烯用环氧脂肪酸酯生物基增塑剂耐迁移性能,利用迈克尔加成反应,以较高产率在餐厨回收油源脂肪酸双酯α位引入第三个酯基,产物不提纯直接进行环氧化处理,制得环氧脂肪酸多酯生物基增塑剂.在此基础上,利用气相色谱-质谱、核磁共振技术,确定了产物组成和结构,并对比了环氧脂肪酸多酯、环氧脂肪酸双酯在聚氯乙烯中的耐迁移性能.结果显示,得益于第三个酯基引入,环氧脂肪酸多酯的耐挥发、耐渗出和耐萃取性能均优于邻苯二甲酸二(2-乙基己基)酯,这为聚氯乙烯用高性能生物基增塑剂结构设计与制备、餐厨回收油全组分高值利用提供了借鉴与参考.
Abstract
To suppress leaching of epoxidized fatty acid ester bio-plasticizers in polyvinyl chloride matrix,a Michael addition reaction was performed to covalently attach one short ester at the α-position of waste cooking oil-derived fatty acid di-ester in rela-tively high yields.The resulting intermediate without purification was subjected to epoxidation,yielding a novel epoxidized fatty acid multi-ester bio-plasticizer.The composition and molecular structure of the engineered bio-plasticizer were determined by gas chromatography-mass spectrometry and 1H nuclear magnetic resonance.Then,leaching resistance of epoxidized fatty acid multi-ester and epoxidized fatty acid di-esters in polyvinyl chloride matrix was evaluated.The results demonstrate that attaching of the third ester group provide the epoxidized fatty acid ester with better resistance to volatilization,leaching and extraction to a level superior to that of di-(2-ethylhexyl)phthalate.The present efforts may provide guidance for other researchers in the molecular design and synthesis of high-performance polyvinyl chloride bio-plasticizers and all-component high-value utilization of waste cooking oil.
关键词
餐厨回收油/生物基增塑剂/聚氯乙烯/耐迁移Key words
waste cooking oil/bio-plasticizer/polyvinyl chloride/migration resistance引用本文复制引用
基金项目
四川省重点研发计划(2023YFG0087)
四川省中央引导地方科技发展专项(2022ZYD0035)
成都市技术创新研发项目(2022-YF05-00103-SN)
四川省自然科学基金(2023NSFSC0325)
出版年
2024
NETL
NSTL
万方数据