PE-g-MAH及其纳米复合材料的制备与表征  

PREPARATION AND CHARACTERIZATION OF FUNCTIONAL POLYETHYLENE AND ITS NANOCOMPOSITES

作　　者：翟红波[1] 李咏梅[2] 郭汉洋[1] 刘长丰[1] 周正发[1] 宋秋生[1] 徐卫兵[1] 

机构地区：[1]合肥工业大学化工学院,安徽合肥230009 [2]合肥荣事达集团日用电器有限公司,安徽合肥230031

出　　处：《高分子材料科学与工程》2005年第4期252-255,共4页Polymer Materials Science & Engineering

基　　金：安徽省十五重大科技专项项目(01402012)

摘　　要：采用反应挤出的方式,首先对非极性的高密度聚乙烯进行功能化处理,得到HDPE-g-MAH,然后将其与有机蒙脱土熔融复合,制得了分散效果良好的纳米复合材料。并用红外对接枝效果进行验证,用XRD,TEM对复合体系的插层效果进行了分析和表征。进一步的热性能分析显示,纳米材料的热稳定性相对于纯聚乙烯有所提高;同时DSC研究结果表明,复合体系的结晶温度也有所提高。Firstly, polyethylene was modified by grafting MAH monomer in order to make the main chain of polyethylene has polar groups. The polyethylene/montmorillonite nanocomposites were then prepared by melt mixing the modified polyethylene with organic montmorillonite. FT-IR was used to testify that the MAH had been grafted on the main chain of polyethylene. XRD and TEM were employed to characterize the nanocomposites,it shows that the montmorillonite has a good dispersion in the matrix. Further analysis of thermal and crystal properties indicates that the nanocomposites have a better thermal stability and a higher crystal temperature comparing with the pristine matrix.

关 键 词：聚乙烯 接枝 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]