中国塑料 ›› 2012, Vol. 26 ›› Issue (10): 42-49 .DOI: 10.19491/j.issn.1001-9278.2012.10.006

• 材料与性能 • 上一篇    下一篇

界面调控对聚乳酸/竹纤维复合材料热性能及动态热力学性能的影响

李新功 郑霞 吴义强 胡云初   

  1. 中南林业科技大学 中南林业科技大学 中南林业科技大学 中南林业科技大学
  • 收稿日期:2012-06-12 修回日期:1900-01-01 出版日期:2012-10-26 发布日期:2012-10-26

Influences of Interface Control on Thermal and Dynamic Thermal Mechanical Properties of PLA/Bamboo Fibers Composites

Xingong LI Xia ZHENG Yiqiang WU Yunchu HU   

  • Received:2012-06-12 Revised:1900-01-01 Online:2012-10-26 Published:2012-10-26
  • Contact: Yiqiang WU

摘要: 分别采用碱(NaOH)处理、异氰酸酯(MDI)处理以及NaOH + MDI处理3种方法对竹纤维(BF)和聚乳酸(PLA)的界面进行调控,并通过注射成型工艺制备了PLA/BF复合材料,探讨了不同界面调控方法对PLA/BF复合材料热性能与动态热力学性能的影响。结果表明,3种界面调控处理均可以改善PLA/BF复合材料的热稳定性和动态热力学性能;NaOH和MDI联合调控可以产生协同效应,对PLA/BF复合材料热稳定性和动态热力学性能的改善效果更显著。

关键词: 竹纤维, 聚乳酸, 界面调控, 复合材料, 热性能, 动态热力学性能

Abstract: Composites of poly(lactic acid)(PLA) and bamboo fibers(BF)were prepared via injection molding. The interface in the composites was modified using alkali(NaOH), isocyanate (MDI) , and NaOH+MDI treatments. The thermal and dynamic thermal mechanical properties of the composites were investigated. All three interface control methods improved the thermal and dynamic thermal mechanical properties of PLA/BF composites, with the synergistic effect between NaOH and MDI being the most effective.

Key words: bamboo fibers, poly(lactic acid), interface control, composite, thermal property, dynamic thermal mechanical property

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