PP/PP-g-GMA-St/MMT纳米复合材料的制备与表征  

The Preparation and Characterization of PP/PP-g-GMA-St /MMT Nanocomposites

作　　者：刘长丰[1] 周正发[1] 邵华[1] 杨森[1] 徐卫兵[1] 于少明[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009

出　　处：《高分子材料科学与工程》2007年第2期211-213,共3页Polymer Materials Science & Engineering

基　　金：安徽十五重大科技项目(01402012)

摘　　要：以十六烷基三甲基溴化铵处理钙基蒙脱土得到有机蒙脱土。采用反应挤出对极性很弱的PP进行接枝改性,得到接枝物PP-g-GMA-St,GMA的接枝率为0.7%。然后将其作为聚丙烯和有机蒙脱土的相容剂,熔融共混后得到分散效果良好的纳米复合材料。用FT-IR对接枝物进行了验证;并用XRD,TEM对复合体系的插层效果进行了分析和表征。Firstly, modified by grafting GMA monomer and Styrene （St）, the main chains of polypropylene have polar groups, which is necessary for the molecule chains of polypropylene to intercalate the montmorillonite. In the same time, Ca^＋montmorillonite was modified by longchain alkylammonium, so, we achieved a kind of O-MMT. Then, polypropylene/O-MMT nanocomposites were prepared by melt mixing the modified polypropylene with organic montmorillonite. FI-IR was used to testify that the GMA and St had been grafted on the main chain of polypropylene. XRD and TEM were employed to characterize the nanocomposites, which showed that the montmorillonite had a good dispersion in the matrix.

关 键 词：聚丙烯 相容剂 PP—g—GMA—St 蒙脱土 纳米复合材料 

分 类 号：TB383[一般工业技术—材料科学与工程]