高抗冲共聚聚丙烯的结构与性能  

Structure and properties of high impact polypropylene

作　　者：吴建[1] 谢昕[1] 李丽[1] 杨柳[1] 陈坤[1] 

机构地区：[1]中国石油天然气股份有限公司兰州化工研究中心,甘肃兰州730060

出　　处：《合成树脂及塑料》2011年第1期59-61,共3页China Synthetic Resin and Plastics

摘　　要：采用核磁共振仪、差示扫描量热仪、扫描电子显微镜等表征了两种高抗冲共聚聚丙烯(HIPP)和汽车保险杠专用聚丙烯(PP)树脂SP179,研究了HIPP和SP179的动态流变行为。由于HIPP中橡胶相的含量较高,导致HIPP与SP179相比在低温下具有较高的悬臂梁缺口冲击强度和弹性。在-30℃时,两种HIPP的悬臂梁缺口冲击强度分别达36.0,58.0J/m,而SP179仅为11.0J/m。Two kinds of high impact polypropylene（HIPP） and a special polypropylene resin for bumper （SP179） were characterized by carbon nuclear magnetic resonance（13C-NMR）, differential scanning calorimeter （DSC） and scanning electron microscope（SEM）. The dynamic rheological behavior of the resins was studied. The notched Izod impact strength and flexibility of HIPP were higher than those of SP179 at low temperature because of the former＇s higher content of rubber phase. The notched Izod impact strength of the HIPP resins and SP179 reached 36.0, 58.0 J/m and 11.0 J/m at -30℃, respectively.

关 键 词：聚丙烯 动态流变 韧性 弹性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]