EFFECTS OF COMPATIBILIZERS ON SELECTED PROPERTIES OF HDPE COMPOSITES HIGHLY FILLED WITH BAMBOO FLOUR

Authors

  • W P Zhang Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology, Shanghai, China, MS 200237
  • Y H Lu Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology, Shanghai, China, MS 200237
  • S Khanal Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology, Shanghai, China, MS 200237
  • S A Xu Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology, Shanghai, China, MS200237 School of Chemical Engineering Qinghai University Xining, China, MS 810016

Keywords:

wood plastic composites, HDPE-g-MAH, HDPE-g-GMA, compatibilizer, mechanical properties

Abstract

In this study, maleic anhydride–grafted high-density polyethylene (HDPE-g-MAH) and glycidyl methacrylate–grafted high-density polyethylene (HDPE-g-GMA) were synthesized by melting grafting reaction using styrene as a comonomer. These two functionalized HDPEs and three commercial functionalized polyolefins (Fusabond®M603, PE-g-MAH, and PEW-g-MAH) were used to compatibilize HDPE/bamboo flour (BF) composites. The morphologies and properties of compatibilized and uncompatibilized composites were compared to determine the optimal compatibilizer for HDPE/BF composites. Besides, the effect of HDPE-g-MAH and HDPE-g-GMA contents on the properties of HDPE/BF composites was also investigated. The results show that HDPE-g-MAH and HDPE-g-GMA can more effectively improve the mechanical properties of HDPE/BF composites than the three commercial compatibilizers (Fusabond®M603 resin, PE-g-MAH, and PEW-g-MAH). In addition, HDPE-g-MAH is more effective than HDPE-g-GMA because of the stronger interaction between anhydride and hydroxyl groups than that between epoxy and hydroxyl groups. The use of HDPE-g-MAH and HDPE-g-GMA contributes to improve the thermal stability and reduce the water absorption of HDPE/BF composites.

 

 

 

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Published

2018-07-20

Issue

Vol. 50 No. 3 (2018)

Section

Research Contributions

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