TPU/PA1212/joncryl复合材料的制备与性能  

Preparation and Properties of TPU/PA1212/joncryl Composites

作　　者：周颖[1,2] 徐定红 伍宏明[1,2] 何玮頔 郭建兵 袁桃 龙雪彬[1,2] ZHOU Ying;XU Dinghong;WU Hongming;HE Weidi;GUO Jianbing;YUAN Tao;LONG Xuebin(National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang 550014,China;Material Innovation Base of Guizhou Province,Guiyang 550014,China;Guizhou Shanmeng New Material Technology Co.,Ltd.,Guiyang 550014,China)

机构地区：[1]国家复合改性聚合物材料工程技术研究中心,贵阳550014 [2]贵州省材料创新基地,贵阳550014 [3]贵州山盟新材料科技有限公司,贵阳550014

出　　处：《上海塑料》2021年第6期34-40,共7页Shanghai Plastics

基　　金：贵州省自然科学基金(2019/5635);白云区科技项目(白科合同[2020]34号)。

摘　　要：通过熔融共混方法制备了热塑性弹性体聚氨酯(TPU)/聚酰胺1212(PA1212)/joncryl共混物。研究了增容剂joncryl含量对共混物力学性能、热性能、结晶度和耐磨性的影响。力学性能测试表明:共混物的拉伸强度从25.13 MPa增加至27.18 MPa,弯曲强度从21.51 MPa逐渐增加到23.70 MPa,缺口冲击强度从9.16 kJ/m^(2)增加至10.28 kJ/m^(2)。随着增容剂含量的增加,共混物的耐热性能略微变差,共混物中TPU的熔融温度有所上升,而PA1212的熔融温度有所下降。另外,共混物的耐磨性随着增容剂含量的增加而提高。Thermoplastic polyurethane elastomer(TPU)/polyamide 1212(PA1212)/joncryl composites were prepared by melt blending. The effects of compatibilizer joncryl content on the mechanical properties, thermal properties, crystallinity and wear resistance of the blends were studied. The mechanical tests show that the tensile strength, flexural strength, and notched impact strength increase from 25.13 MPa, 21.51 MPa, 9.16 kJ/m^(2) to 27.18 MPa, 23.70 MPa, 10.28 kJ/m^(2) respectively. With the increase of compatibilizer content, the heat resistance of the blends decreases slightly, the melting temperature of TPU increases, while the melting temperature of PA1212 decreases. In addition, the wear resistance of the blends increases with the increase of compatibilizer content.

关 键 词：热塑性聚氨酯弹性体 聚酰胺1212 增容剂 力学性能 耐磨性 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]