MWCNT/PA6复合材料的等温结晶动力学研究  

Kinetics Study of Isothermal Crystallization for MWCNT/PA6 Nanocomposites

作　　者：李晶[1,2] 赵欢敏[3] 杨华[3] 

机构地区：[1]天津出入境检验检疫局工业产品安全技术中心,天津300201 [2]天津市检验检疫科学技术研究院,天津300457 [3]天津科技大学,天津300457

出　　处：《塑料工业》2012年第10期101-104,共4页China Plastics Industry

基　　金：天津市应用基础及前沿技术研究计划(11JCYBJC03400);天津市科技计划项目(12ZCZDSF01000);天津科技大学实验室开放基金(1103A208)

摘　　要：将碳纳米管(CNT)经过酸化处理后,采用哈克转矩流变仪制备了碳纳米管/尼龙6纳米复合材料。通过DSC对复合材料的等温结晶动力学进行了研究,用Avrami方程对等温结晶动力学进行了处理。结果表明:碳纳米管在复合材料中起到了异相成核的作用,使复合材料的半结晶时间t1/2变小,结晶速率常数K增大,这就使得总的结晶速率加快,使结晶更加完善。Acid was treated on muhi-walled carbon nano-tubes （MWNTs） and the MWNTs/PA6 composites were prepared by Haake torque rheometer. The isothermal crystallization of composites was investigated by DSC. The Avrami equation was used to describe the isothermal crystallization kinetics. The results showed that adding small amounts of MWNTs was heterogeneous nucleation. The adding MWNTs may decrease the time for half-crystallization t1/2 and increase crystallization kinetic rate constants K, thus the whole crystallization rate and crystallization degree increased.

关 键 词：碳纳米管 尼龙6 等温结晶 

分 类 号：TB332[一般工业技术—材料科学与工程]