抗冲击改性剂ACR增韧聚氯乙烯  

Polyvinyl Chloride Toughened by Impact Modifier of ACR

作　　者：申欣[1] 吴广峰[2] 

机构地区：[1]青岛科技大学,山东青岛266031 [2]长春工业大学化学工程学院,吉林长春130012

出　　处：《上海塑料》2003年第3期9-11,共3页Shanghai Plastics

基　　金：国家自然科学基金(50273039)

摘　　要：采用种子乳液聚合手段,合成了具有核壳结构的抗冲击改性剂ACR。利用机械共混的方法,在双辊塑炼机和平板硫化机上于185℃下制备PVC/ACR抗冲击改性共混物。按照GB1040—79制备标准缺口冲击样条,研究了样条的冲击性能,在扫描电子显微镜上进行冲击样条的断裂表面分析。结果表明,所有共混物的力学性能优秀,以韧性方式断裂为主,从SEM照片上可以看到典型的韧性断裂的屈服特征。A kind of impact modifier ACR with core-shell structure was synthesized by emulsion polymerization. The PVC/ACR polymer blends were prepared by melt processing on a two-roller mill and molded at 185℃ for 5min. The standard impact test was made for the specimens according to GB1040-79. All the specimens was notched and impacted on Izod impact testing mechine. The fracture surface was observed and analysized by SEM. The test results show that all notched bars are broken in ductile manner. The mechanical properties are excellent. There are many fibers on the surface of fracture samples, which are in yielded character.

关 键 词：抗冲击改性剂 ACR 增韧 聚氯乙烯 韧性断裂 

分 类 号：TQ325[化学工程—合成树脂塑料工业]