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
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。
碳纳米管
复合材料
性能
poly(lactic acid) (PLA)
carbon nanotube (CNT)
composite
property
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.
中图分类号 TB332, TB3300.1
所属栏目 试验研究
基金项目
收稿日期 2010/12/6
修改稿日期 2011/9/9
网络出版日期
作者单位点击查看
备注庄韦(1977-), 男, 江苏宿迁人, 副研究员, 博士。
引用该论文: ZHUANG Wei,WANG Ju-hua,JI Qing-lin,YU Qiang. Preparation and Properties of Carbon Nanotubes/Poly (Lactic Acid) Composites[J]. Materials for mechancial engineering, 2012, 36(1): 37～40
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
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参考文献
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【6】PLUTA M, PAUL MA, AlEXANDRE, et al. Plasticized polylactide/clay nano composites, Part II: The effect of aging on structure and properties in relation to the filler content and the nature of its organ modification[J].J Polym Sci B Polym Phys, 2006, 44(2): 312-315.
【2】SONG W H, ZHENG Z, TANG W L, et al. A facile approach to covalently functionalized carbon nanotubes with biocompatible polymer[J].Polymer, 2007, 48: 3658-3663.
【3】WU C S, LIAO H T. Study on the preparation and characterization of biodegradable polylactide/multi-walled carbon nanotubes nanocomposites[J].Polymer, 2007, 48: 4449-4458.
【4】张艺, 程开良, 许家福.调制式差示扫描量热法在高分子研究中的应用[J].化学通报, 2004, 67(5): 341-348.
【5】吴捷.碳纳米管在低密度聚乙烯基体中的形态研究[D].哈尔滨: 黑龙江大学, 2007.
【6】PLUTA M, PAUL MA, AlEXANDRE, et al. Plasticized polylactide/clay nano composites, Part II: The effect of aging on structure and properties in relation to the filler content and the nature of its organ modification[J].J Polym Sci B Polym Phys, 2006, 44(2): 312-315.
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