中国塑料 ›› 2013, Vol. 27 ›› Issue (12): 30-33 .DOI: 10.19491/j.issn.1001-9278.2013.12.006

• 材料与性能 • 上一篇    下一篇

mPE-g-MAH 制备及其改性聚烯烃复合材料性能研究

张文龙 张鹏 冯龙   

  1. 哈尔滨理工大学 哈尔滨理工大学材料科学与工程学院 哈尔滨理工大学
  • 收稿日期:2013-07-12 修回日期:2013-10-09 出版日期:2013-08-26 发布日期:2013-08-26

The Preparation of mPE-g-MAH and Properties Investigation of Polyolefin/mPE-g-MAH Composites

  

  • Received:2013-07-12 Revised:2013-10-09 Online:2013-08-26 Published:2013-08-26

摘要: 研究了马来酸酐接枝茂金属聚乙烯(mPE-g-MAH)的接枝工艺,并研究了其对聚烯烃复合材料性能的影响。结果表明,过氧化二异丙苯用量为0.2 %(质量分数,下同),马来酸酐用量为2 %,抑制剂用量为0.2 %时,制备出接枝率为1.37 %,凝胶率为0.22 %的mPE-g-MAH; mPE-g-MAH(接枝率为0.80 %)比纯mPE的拉伸强度和断裂伸长率分别增加了20.8 %和17.1 %,极限氧指数从27.0 %提高到28.6 %;mPE-g-MAH的接枝率达到1.37 %时,其改性聚烯烃复合材料的拉伸强度和断裂伸长率分别又提高了9.2 %和15.0 %,极限氧指数又提高到29.8 %,平衡扭矩变化均不明显。

关键词: 马来酸酐, 茂金属聚乙烯, 接枝, 复合材料

Abstract: The grafting technology of maleic anhidride (MAH) onto mPE was studied inthis paper. When the loading of DCP was 0.2 wt %, maleic anhydride was 2 wt % and inhibitor was 0.2 wt %, all based on PE, the graft rate was 1.37 wt % and the gel fraction was 0.22 %. Compared with neat mPE, the tensile strength and elongation at break of mPE-g-MAH (graft rate 0.80 wt %) increased by 20.8 % and 17.1 %, respectively, the oxygen index increased from 27.0 % to 28.6 %. When the grafting rate reached 1.37 wt %, the tensile strength and elongation at break were further increased by 9.2 % and 15.0 %, respectively, the oxygen index increased to 29.8 %.

Key words: maleic anhydride, metallocene polyethylene, grafting, composite