聚乳酸/纳米碳管防静电复合材料的制备与性能  

Preparation and Properties of Poly(Lactic Acid)/Carbon Nanotubes Antistatic Composite Material

作　　者：喻亚格[1] 贾军芳[1] 叶正涛[1] 朱平[1] 崔莉[1] 

机构地区：[1]武汉纺织大学化学与化工学院,武汉湖北430073

出　　处：《高分子材料科学与工程》2013年第11期124-127,共4页Polymer Materials Science & Engineering

摘　　要：以纳米碳管为导电料通过球磨和密炼2种方法添加到聚乳酸基体中制备了防静电复合材料,并研究了其防静电性能。通过红外光谱(FT-IR)和差示扫描量热(DSC)分析了功能化纳米碳管对聚乳酸分子的整体结构、玻璃化转变温度、结晶度以及熔点的影响。实验表明,聚乳酸分子的整体结构没有发生变化,复合材料的玻璃化转变温度及熔点略有下降;冲击实验和导电性能测试发现,复合材料的抗冲击性能及导电性能随着纳米碳管含量的增加呈上升的趋势。实验证明,球磨法较密炼法更容易使纳米碳管在复合材料中形成导电通路,且功能化纳米碳管的加入提高了聚乳酸的抗冲击性能。Carbon nanotube as conductive filler was added into poly（lactic acid） matrix through the ball milling and mixing method respectively, and the antistatic properties of poly （lactic acid ） /carbon nanotubes composite were studied. The structure, glass transition temperature, crystallinity and inching point of poly（lactic acid） filled with functional carbon nanotubes were analyzed by FT-IR and DSC. The results show that the integral structure of poly （lactic acid） does not change, glass transition temperature and melting point decrease a little. The impact resistance and conductive properties of composites tested by impact resistance experiments and conducting performance tests respectively are improved with the contents of carbon nanotubes increasing. Ball milling process could make carbon nanotubes form conductive path more easily than mixing process. The mechanical properties of polylactic acid are improved after adding functional carbon nanotube.

关 键 词：聚乳酸 纳米碳管 防静电复合材料 

分 类 号：TB383[一般工业技术—材料科学与工程]