PET层状硅酸盐纳米复合材料的制备及其形态结构  

Preparation and Morphology of PET Nanocomposite

作　　者：徐新宇[1,2] 翟玉春[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

出　　处：《材料科学与工程学报》2014年第2期163-167,共5页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51273035)

摘　　要：本文采用熔融共混的方法制备了PET/有机改性粘土纳米复合材料。以PET离聚物作为增容剂,提高了PET与有机改性粘土之间的相互作用。采用多种测试手段研究了增容剂对复合材料形态结构的影响。WAXD结果表明,当体系中未加入PET离聚物时,样品呈现典型的插层结构;含有增容剂的纳米复合材料中有机改性粘土的层间距(d-spacing)增加。SEM和TEM进一步证明,PET离聚物作为增容剂,提高了有机改性粘土与聚合物之间的相容性,进而改善了有机改性粘土在PET基体中的分散,提高了粘土粒子的密度,实现了粘土的部分剥离。Poly(ethylene terephthalate)(PET)/organo-modified-montmorillonite(o-MMT) nanocomposites were prepared via melt blending.A polyester ionomer was used as a compatibilizer to increase the compatibilization between the nanoclay and PET.The effect of the compatibilizer on the morphology of the nanocomposites was investigated with various testing methods.The wide angle x-ray diffractions(WAXD) showed that the addition of the ionomer to the PET/o-MMT nanocomposite increased the d-spacing of clay galleries compared with the nanocomposite without ionomer.SEM and TEM results further indicated that the incorporation of ionomer improved the dispersion of clay particles in PET,increased the clay particle density and some exfoliation was achieved.

关 键 词：PET PET离聚物 有机改性粘土 形态结构 

分 类 号：TB332[一般工业技术—材料科学与工程]