DMAEMA基嵌段共聚物改性PVC-TPE的研究  

PVC-TPE modified by DMAMEA based block copolymers

作　　者：殷燕[1] 袁金凤[1] 郭宏飞[1] 潘明旺[1] 万彩霞[1] 陈宸[1] 

机构地区：[1]河北工业大学高分子科学与工程研究所,天津300130

出　　处：《河北工业大学学报》2014年第3期54-59,共6页Journal of Hebei University of Technology

基　　金：河北省自然科学基金(E2011202091)

摘　　要：采用甲基丙烯酸二甲氨基乙酯(DMAEMA)基嵌段共聚物(PDMAEMA-b-PBA和PDMAEMA-b-PBMA)与聚氯乙烯(PVC)通用树脂共混,制备PVC基热塑性弹性体(PVC-TPE).研究了DMAEMA基嵌段共聚物的种类、分子量和用量对PVC-TPE力学性能以及加工流变性能的影响.结果表明,随着体系加入PDMAEMA基嵌段共聚物分子量和用量的增加,PVC-TPE的扯断伸长率、拉伸强度和回弹率总体呈上升趋势,撕裂强度和硬度呈下降趋势,PVC-TPE的加工流变性能也得到了提高.PVC-based thermoplastic elastomer （PVC-TPE） was prepared by blending dimethylaminoethyl methacrylate （DMAEMA） -based block copolymers （PDMAEMA- b-PBA and PDMAEMA-b-PBMA） with PVC resin. The influences of the type, molecular weight and the dosage of DMAEMA-based block copolymers on the mechanical properties and the processing rheological properties of the PVC-TPE were studied. The results show that with the increase of molecular weight and the dosage of DMAEMA-based block copolymers, the elongation at break, tensile strength and rebound rate of PVC-TPE gradually increases, however the tear strength and rigidity of PVC-TPE are decreased, the processing rheo- logical properties of PVC-TPE is also enhanced.

关 键 词：聚甲基丙烯酸二甲氨基乙酯 嵌段共聚物 聚氯乙烯 热塑性弹性体 力学性能 加工流变性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]