原位气泡拉伸法制备增韧聚丙烯  

Toughened Polypropylene Materials Prepared by In-situ Bubble Stretching Method

作　　者：赵利涛[1] 刘颖[1] 吴大鸣[1] 陈卫红[1] 林春平[1] 郑秀婷[1] 

机构地区：[1]北京化工大学塑料机械与塑料工程研究所,北京100029

出　　处：《塑料》2011年第1期1-5,共5页Plastics

基　　金：国家自然科学基金项目(50673006);中央高校基本科研业务费专项资金(QN0910)

摘　　要：将5～30份的纳米碳酸钙(nano-CaCO3)添加至无规共聚聚丙烯(PP-R)树脂中,采用原位气泡拉伸法(ISBS法)将树脂基体中的nano-CaCO3分散,制备出PP-R/nano-CaCO3复合材料。对复合材料进行扫描电子显微镜观察,发现ISBS法可以将nano-CaCO3均匀地分散到PP-R中;通过力学性能测试表明:当nano-CaCO3添加量为20份时,ISBS法制备的复合材料的缺口冲击强度与机械分散法相比提高20.4%。研究结果表明:与传统的机械分散法相比,ISBS法可以将nano-CaCO3更均匀地分散到PP-R中,使nano-CaCO3在PP-R中达到纳米级尺度的分散,进而得到高韧性的聚丙烯复合材料。Polypropylene random copolymer/nano calcium nano-CaCO3 being 5 -30phr,were prepared by in-situ bubble carbonate （ PP-R/nano-CaCO3 ） composite,with the content of stretching （ISBS） method. It was found by scanning electron microscope （SEM） that ISBS method dispersed nano-CaCO3 homogeneously in the PP-R matrix. When nano-CaCO3 was at a content of 20phr, Charpy notched impact strength of composite prepared by ISBS method was 20.4 % higher than that of composite prepared by mechanical dispersion method. Results revealed that ISBS method,compared with mechanical dispersion method,could disperse nano-CaCO3 more homogeneously in the PP-R matrix, and it make nano-CaCO3 obtain a nano-leveled dispersion so as to prepare highly tough PP matrix composite.

关 键 词：原位气泡拉伸法 聚丙烯 纳米 分散 增韧 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]