富马酸季戊四醇酯基镧稀土化合物的制备及其在PVC中热稳定性能和抗菌性能的研究  

Preparation,thermal stability and antibacterial properties of pentaerythritol fumarate⁃based lanthanum rare earth compounds for use in PVC

作　　者：陈明光 李梦迪 郁辰 曹鸿璋 于晓丽 柳召刚[1] 罗果萍[1] CHEN Mingguang;LI Mengdi;YU Chen;CAO Hongzhang;YU Xiaoli;LIU Zhaogang;LUO Guoping(School of Rare Earth Industry,Inner Mongolia University of Science&Technology,Baotou 014010,China;National Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou 014030,China;School of Chemistry and Chemical,Engineering,Shandong University of Technology,Zibo 255000,China)

机构地区：[1]内蒙古科技大学稀土产业学院,内蒙古包头014030 [2]白云鄂博稀土资源研究与综合利用全国重点实验室,内蒙古包头014030 [3]山东理工大学化学化工学院,山东淄博255000

出　　处：《中国塑料》2025年第1期6-12,共7页China Plastics

基　　金：白云鄂博稀土资源研究与综合利用全国重点实验室联合研究课题(2022Z2417);中央引导地方资金项目(2022ZY0100)。

摘　　要：本文以富马酸、季戊四醇和醋酸镧为原料,合成了富马酸季戊四醇镧(FGPE-La)稀土化合物,对其结构和组成进行了表征,并研究了FGPE-La在聚氯乙烯(PVC)中的热稳定性能和抗菌性能。结果表明,FGPE-La是兼具热稳定性能和抗菌性能的多功能PVC助剂,当FGPE-La∶ZnSt2=3∶1时,具有较好的初期白度和长期热稳定性,且当4份FGPE-La单独使用时,热稳定时间达到了68 min,能够显著提高PVC的长期稳定性;当添加6%(质量分数,下同)FGPELa时,PVC的抑菌率达到99.1%,溶血率也仅为4.6%,具有较好的生物相容性。A rare earth compound,fumaric acid pentaerythritol lanthanum(FGPE‐La),was synthesized using fumaric acid,pentaerythritol,and lanthanum acetate as raw materials.The chemical structure and composition of the resultant FGPE‐La were characterized,and its thermal stability and antibacterial properties when used in PVC were investigated.The results indicated that FGPE‐La could be used as a multifunctional PVC additive with both good thermal stability and antibacterial properties.When a mixer of FGPE‐La and ZnSt2 at a mass ratio of 3:1 was used for PVC,good initial whiteness and longterm thermal stability could be obtained in the modified PVC.Moreover,the thermal stability time of the modified PVC reaches 68 minutes when 4 phr FGPE‐La was incorporated alone,indicating a significant improvement in the longterm stability.An antibacterial rate of 99.1%was achieved for the modified PVC containing 6 wt.%FGPELa,and its hemolysis rate was only 4.6%,indicating good biocompatibility.

关 键 词：稀土化合物 聚氯乙烯 热稳定性能 抗菌性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]