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    庄韦, 王菊花, 纪清林, 俞强. 碳纳米管/聚乳酸复合材料的制备与性能[J]. 机械工程材料, 2012, 36(1): 37-40.
    引用本文: 庄韦, 王菊花, 纪清林, 俞强. 碳纳米管/聚乳酸复合材料的制备与性能[J]. 机械工程材料, 2012, 36(1): 37-40.
    shu
    ZHUANG Wei, WANG Ju-hua, JI Qing-lin, YU Qiang. Preparation and Properties of Carbon Nanotubes/Poly (Lactic Acid) Composites[J]. Materials and Mechanical Engineering, 2012, 36(1): 37-40.
    Citation: ZHUANG Wei, WANG Ju-hua, JI Qing-lin, YU Qiang. Preparation and Properties of Carbon Nanotubes/Poly (Lactic Acid) Composites[J]. Materials and Mechanical Engineering, 2012, 36(1): 37-40.
    shu

    碳纳米管/聚乳酸复合材料的制备与性能

    Preparation and Properties of Carbon Nanotubes/Poly (Lactic Acid) Composites

      摘要
    • 摘要: 用熔融共混的方法制备了碳纳米管(CNTs)/聚乳酸(PLA)复合材料, 观察了其球晶形貌和断面形貌, 并研究了不同配比的CNTs/PLA复合材料的结晶性能和水解性能。结果表明: CNTs可以作为异相成核剂提高PLA的结晶速率和结晶度, CNTs质量分数为1%时, 复合材料的结晶度达到44.9%, CNTs能够在基体中均匀分散; CNTs质量分数小于1%时, 断面呈中间层破形貌; 随CNTs含量增多, 复合材料的球晶直径变大; CNTs能降低PLA的水解速率。

       

      Abstract: Carbon nanotubes(CNTs)/poly(lactic acid) (PLA) composites were prepared by melt blending method. The morphology of spherulitic crystal and fracture was observed, and the crystallinity and the hydrolysis properties of CNTs/PLA composites with different ratios were studied. The results show that CNTs could act as heterogeneous nucleators and increase the crystallinity rate and degree of PLA, the crystallinity degree could reach 44.90% when CNTs content was 1wt%, and CNTs could disperse homogenously in matrix. The fracture took on mid-layer damage morphology when CNTs content was less than 1wt%, and the spherulitic crystal diameter of composite increased with the increase of CNTs content, CNTs could reduce the hydrolysis rate of PLA.

       

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