m-ACR对PVC/木粉复合材料力学性能的影响  

Effect of Modified ACR on Mechanical Properties of PVC/WF Composites

作　　者：张海龙[1] 张振[2] 吴广峰[1] 张会轩[1] 

机构地区：[1]长春工业大学合成树脂与特种纤维教育部工程研究中心,吉林长春130012 [2]中国石油管道锦州输油气分公司,辽宁锦州121000

出　　处：《塑料工业》2016年第5期35-38,83,共5页China Plastics Industry

基　　金：国家自然科学基金项目(51173020);吉林省科技厅项目(20140203016GX)

摘　　要：采用乳液聚合的方法合成了反应性核壳结构丙烯酸酯类抗冲击改性剂(m-ACR),使用双辊开炼机制备了聚氯乙烯(PVC)/椴木粉(WF)/m-ACR复合材料。通过力学性能测试和扫描电镜分析表明,m-ACR复合材料体系的力学性能得到提高,木粉与PVC界面结合性能得到改善,m-ACR的添加量为9 phr时,m-ACR体系的拉伸强度较未改性ACR体系的拉伸强度提高了8.74%;与ACR相比m-ACR增韧PVC效率略有降低,添加量为10 phr时冲击强度较PVC/WF体系提高了208%;动态力学分析表明,m-ACR加入后,复合材料体系的黏度增大,玻璃化温度增加。The reactive acrylics impact modifier （m-ACR） with core-shell construction was synthesized by emulsion polymerization, and the polyvinyl chloride （PVC）/basswood flour （WF）/m-ACR composites were prepared by double roller mixing mill. The results from mechanical testing and scanning electron microscopy show that the mechanical properties of the PVC/WF/m-ACR composite system are improved because of the better interracial adhesion between wood flour and PVC. Compared to the unmodified ACR, m-ACR with 9 phr make the tensile strength of the PVC/WF/m-ACR composites increase by 8.74%. The toughening efficiency of m-ACR is slightly lower than that of ACR, while the impact strength of the PVC/WF! m-ACR composites with 10 phr m-ACR increases by 208% compared to PVC/WF. Dynamic mechanical analysis indicates that the glass transition temperature and viscosity of the composites are improved when m- ACR is added.

关 键 词：聚氯乙烯 木塑复合材料 木粉 丙烯酸酯类抗冲击改性剂 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]