Volume 39 Issue 3
Jul.  2021
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XUE Yi-fan, HAN Chen-yang, NI Zhong-jin, NI Yi-hua, LYU Yan. Effects of Bamboo Powder Content and Modification on the Properties of Polylacticacid-based Bamboo-plastic Composites[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(3): 58-66.
Citation: XUE Yi-fan, HAN Chen-yang, NI Zhong-jin, NI Yi-hua, LYU Yan. Effects of Bamboo Powder Content and Modification on the Properties of Polylacticacid-based Bamboo-plastic Composites[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(3): 58-66.

Effects of Bamboo Powder Content and Modification on the Properties of Polylacticacid-based Bamboo-plastic Composites

  • Received Date: 2020-05-18
    Available Online: 2021-07-17
  • Using bamboo powder and polylactic acid as raw materials,a polylactic acid-based bamboo-plastic composite material was prepared by the hot press molding method. The effects of bamboo powder content and different modification methods on the properties of wood-plastic composites were studied. The results indicated that within a certain range,with the increase of bamboo powder content,the equilibrium torque,tensile strength,bending strength and water absorption of the material showed an upward trend. When the bamboo powder content exceeded 50%,the tensile strength and the bending strength showed a downward trend,while the flow performance,crystallinity and impact strength showed an overall downward trend. The surface of bamboo powder was modified by alkali treatment and silane coupling agent. Compared with the unmodified bamboo powder/polylactic acid composite material,the crystallinity of the composite material was increased by the alkali treatment,while decreased by the coupling agent modification. In order to improve the crystallinity of the composite material,the mechanical properties of the two modified composite materials have been enhanced,the interface compatibility of bamboo powder and polylactic acid has been improved,while the water absorption has decreased. Among them,modification of silane coupling agent improved the performance of composite materials more obviously.
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