热塑性聚氨酯弹性体/聚乳酸复合材料的配方与性能研究  

Study on Formulas and Properties of TPU/PLA Composites

作　　者：董延茂[1] 钟文芯 周兴[1] 李继航[1] 袁妍 DONG Yanmao;ZHONG Wenxin;ZHOU Xing;LI Jihang;YUAN Yan(Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州科技大学化学与生命科学学院,江苏苏州215009

出　　处：《橡胶工业》2022年第6期439-444,共6页China Rubber Industry

基　　金：江苏省住房和城乡建设厅科技项目(2017ZD238);苏州市重点产业技术创新项目(SYG201744)。

摘　　要：通过挤出成型制备热塑性聚氨酯弹性体(TPU)/聚乳酸(PLA)复合材料,研究增塑剂邻苯二甲酸二丁酯(DBP)和环烷油及钛酸酯偶联剂TCA-101对复合材料力学性能和热性能的影响。结果表明:DBP和环烷油对TPU/PLA复合材料具有良好的增塑效果,其加入有利于复合材料的挤出加工,但DBP会使复合材料的力学性能降低;钛酸酯偶联剂TCA-101对复合材料具有良好的补强作用;当TPU、PLA、环烷油用量分别为178,20和2 g时,复合材料的拉伸强度达100.54 MPa,拉断伸长率达429%。Thermoplastic polyurethane elastomer(TPU)/polylactic acid(PLA)composites were prepared by extrusion molding,and the effect of plasticizer dibutyl phthalate(DBP),naphthenic oil and titanate coupling agent TCA-101 on the mechanical properties and thermal properties of the composites were investigated.The results showed that,DBP and naphthenic oil had good plasticizing effect on the TPU/PLA composites,and their addition was beneficial to the extrusion processing of the composites,but DBP would reduce the mechanical properties of the composites.Titanate coupling agent TCA-101 had good reinforcing effect on the composites.When the dosages of TPU,PLA and naphthenic oil were 178,20 and 2 g,respectively,the tensile strength of the composites reached 100.54 MPa,and the elongation at break reached 429%.

关 键 词：热塑性聚氨酯弹性体 聚乳酸 复合材料 邻苯二甲酸二丁酯 环烷油 增塑剂 钛酸酯偶联剂 

分 类 号：TQ334.1[化学工程—橡胶工业] TQ330.38