尼龙6/蒙脱土纳米复合材料在不同温度下的拉伸性能  

Tensile Mechanical Properties of Nylon-6/Montmorillonite Nanocomposite at Different Temperatures

作　　者：徐跃[1] 于文学[2] 化黎贵 张宇洁[2] 龙北红[2] 赵竹第[2] 

机构地区：[1]吉林大学测试科学实验中心,长春130021 [2]吉林大学材料科学与工程学院,长春130012 [3]吉林省产品质量监督检验院,长春130022

出　　处：《吉林大学学报（理学版）》2010年第3期482-486,共5页Journal of Jilin University:Science Edition

基　　金：高校博士学科点专项科研基金(批准号:20060183009)

摘　　要：采用熔融共混方法制备质量分数为4%的蒙脱土尼龙6/蒙脱土纳米复合材料.X射线衍射和透射电子显微镜研究表明:蒙脱土均匀分散在尼龙6基体中,形成具有剥离结构的纳米复合材料;在室温～200℃,当相同的温度和拉伸比拉伸时,尼龙6/蒙脱土纳米复合材料的结晶度均低于尼龙6,蒙脱土在此温度范围内对尼龙6均具有增强作用,这是由于蒙脱土和尼龙6分子间的相互作用限制了尼龙6分子链的运动,使尼龙6不易拉伸所致.Nylon-6/montmorillonite （MMT） nanocomposite containing 4% of MMT was prepared by melt blending. The dispersion of MMT in nylon-6 was investigated by means of X-ray diffraction and transmission electron microscopy. It was found that the MMT layers were exfoliated and uniformly dispersed in nylon-6 matrix. When nylon-6 and nylon-6/MMT nanocomposite were drawn at the same temperature and drawing ratio in a temperature range from room temperature to 200 ℃,the crystallinity of nylon-6/MMT nanocomposite was lower than that of nylon-6,while the MMT still had strengthening effect in nylon-6 matrix. The strengthening effect could be attributed to the interaction between MMT layers and nylon-6 molecules. The interaction restricted the motions of nylon-6 molecular chains,which resulted in the deformation resistance of nylon-6 during drawing.

关 键 词：尼龙6/蒙脱土纳米复合材料 单向拉伸 温度 结构与拉伸性能 

分 类 号：TB303[一般工业技术—材料科学与工程]