中国塑料 ›› 2008, Vol. 22 ›› Issue (12): 28-32 .DOI: 10.19491/j.issn.1001-9278.2008.12.006

• 材料与性能 • 上一篇    下一篇

PE-g-MAH对木粉高填充量PE木塑性能的影

李伟;吕群;羊海棠;何田;来国桥   

  1. 1.杭州师范大学材料与化学化工学院,浙江 杭州 310036;2.杭州师范大学有机硅教育部重点实验室,浙江 杭州 310012
  • 收稿日期:2008-09-16 修回日期:1900-01-01 出版日期:2008-12-26 发布日期:2008-12-26

Effect of PE-g-MAH on Properties of High-content Wood-flour filled PE Composites

LI Wei, LV Qun, YANG Hai-tang, HE Tian, LAI Guo-qiao   

  1. 1.College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China;2.Oraganic Silicon of Key Laboratory of Education Ministry, Hangzhou Normal University, Hangzhou 310012,China
  • Received:2008-09-16 Revised:1900-01-01 Online:2008-12-26 Published:2008-12-26
  • Contact: LV Qun

摘要: 以回收高密度聚乙烯(PE-HD)和马来酸酐接枝聚乙烯(PE-g-MAH)的总含量为27 %(质量分数,下同)、木粉含量为70 %、润滑剂为3 %为基本配方,用挤出成型法制备了高份额木粉填充的木塑复合材料。研究了配方中PE-g-MAH的含量对木塑复合材料性能的影响,结果表明,在保持配方中PE-g-MAH和PE-HD的总含量为27 %不变的条件下,随着PE-g-MAH的含量从0增加到27 %,制得的木塑复合材料的拉伸强度从12.5 MPa增大到34.7 MPa,弯曲强度从30.0 MPa增大到64.0 MPa,冲击强度从3.9 kJm-2增大到14.1 kJm-2,吸水率从2.51 %减少到0.04 %。红外光谱表明,木塑复合材料中木粉与PE-g-MAH之间形成了酯键。

关键词: 马来酸酐接枝聚乙烯, 回收高密度聚乙烯, 挤出成型, 木塑复合材料, 性能

Abstract: High wood-flour-content filled PE composites were manufactured via extrusion, with a recipe of 70 wt% wood flour, 27 wt% PE-HD plus maleic anhydride grafted PE (PE-g-MAH), and 3 wt% lubricant. The mechanical properties and water absorption of the PE/wood flour composites were investigated. The addition of PE-g-MAH increased the flexural strength, toughness, and tensile strength of the composites significantly, which were increased from 30.0 to 60.0 MPa, 3.94 to 14.1 kJm-2, and 12.5 to 34.7 MPa, respectively. Water absorption was decreased from 2.51 to 0.04 wt%. FTIR indicated that ester bonds were formed between wood flour and PE-g-MAH.

Key words: polyethylene-graft-maleic anhydride, recycle high-density polyethylene, extrusion, wood plastic composites, property

中图分类号: