PLA/PBS荧光复合材料的制备及性能研究  

Preparation and Performance of PLA/PBS Fluorescent Composites

作　　者：王希越 黄丽婕[1] 曹畅 黎怡杉 莫琪 薛美贵 WANG Xiyue;HUANG Lijie;CAO Chang;LI Yishan;MO Qi;XUE Meigui(College of Light Industry and Food Engineering,Guangxi University,Nanning 530004,China;Dongguan Polytechnic,Guangdong Dongguan 523808,China)

机构地区：[1]广西大学轻工与食品工程学院,南宁530004 [2]东莞职业技术学院,广东东莞523808

出　　处：《包装工程》2024年第3期29-36,共8页Packaging Engineering

基　　金：广西自然科学基金(2020GXNSFAA297042);广西博世科环保科技股份有限公司国家企业技术中心联合项目(AA17129006);广西清洁制浆造纸与污染控制重点实验室(2021KF53)。

摘　　要：目的聚乳酸(PLA)具有良好的加工性能和生物相容性,通过加入耐热性能好的聚丁二酸丁二醇酯(PBS)可改善其力学性能和热力学性能,再加入365nm长波荧光粉和色母粒制得的复合材料使其获得荧光防伪性能与色彩性能。方法以聚乳酸为基体,利用双螺杆挤出机将PLA、PBS、荧光粉、普通色母熔融共混后挤出,得到含不同比例PBS的PLA/PBS共混材料,含不同比例荧光粉的PLA/PBS荧光复合材料,以及含不同比例色母的彩色PLA/PBS荧光复合材料,并对复合材料进行力学性能分析、热力学性能分析、红外分析、色彩性能分析、微观形貌分析等。结果通过实验得出,当PLA/PBS质量比为6/4、荧光粉质量分数为5%、色母质量分数为0.5%时综合性能最佳。结论制备了有色PLA/PBS荧光复合材料,赋予复合材料防伪的荧光性能和美观性,并且得到热力学性能有所改善的环境友好型复合材料,拓宽了PLA在3D打印领域和现代工业领域的应用。Polylactic acid(PLA)has good processing performance and biocompatibility.Its mechanical and thermomechanical properties can be improved through the addition of heat-resistant polybutylene succinate(PBS).The work aims to add 365 nm long-wave phosphors and masterbatches to prepare composites to obtain fluorescent anti-counterfeiting performance and color property.In this paper,with polylactic acid as the matrix,PLA,PBS,phosphor,and ordinary masterbatch were subject to melt blending,and then extruded to obtain PLA/PBS blended materials of different PBS ratios,PLA/PBS fluorescent composites of different phosphor ratios,and colorful PLA/PBS fluorescent composites of different masterbatch ratios.The composites were subject to mechanical property analysis,thermodynamic property analysis,infrared analysis,color property analysis,and micro-morphology analysis.The test showed that the overall property was the best when PLA/PBS=6/4,phosphor content is 5%,phosphor content is 5%,and masterbatch content is 0.5%.In conclusion,colorful PLA/PBS fluorescent composites are prepared.It gives composites the anti-counterfeiting performance and good appearance,obtains environmental friendly composites with improved thermodynamic properties and expands the application of PLA in 3D printing and modern industrial fields.

关 键 词：聚乳酸 聚丁二酸丁二醇酯 荧光 环境友好材料 

分 类 号：TB33[一般工业技术—材料科学与工程] TB48