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碳纳米管/PLA复合材料制备及性能

, PP. 50-54

Keywords: 聚乳酸,碳纳米管,结晶,导电,降解

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Abstract:

采用溶液共混法制备纯化和酸化碳纳米管(CNTs)/PLA(聚乳酸)复合膜,并对CNTs的分散性以及材料的结晶形态、电性能和降解性能进行了研究。结果表明,通过SEM观察到经过酸化处理的CNTs能较好地分散在PLA基体中;在偏光显微镜下能观察到CNTs起到成核剂的作用,明显细化了晶粒;加入少量的酸化CNTs能够提高CNTs/PLA复合材料导电性,体积电阻率下降了7个数量级;同时,酸化CNTs能够提高CNTs/PLA复合材料的降解性。

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