材料工程Issue(1)：28-32,37,6.
聚乳酸/蒙脱土纳米复合材料的原位聚合及表征
Polylactide/Montmorillonite Nanocomposites In-situ Polymerization and Characterization
车晶 1秦凡 1杨荣杰1
作者信息
- 1. 北京理工大学材料学院,北京,100081
- 折叠
摘要
Abstract
High molecular weight polylactide/montmorillonite nanocomposites were obtained through in-situ melt polycondensation method in which the montmorillonite(MMT) was added after dehydration and before the polycondensation. The results of XRD and TEM show that exfoliated nanocomposites are obtained when the addition of montmorillonite is 0.5 ％ (mass fraction),and both intercalated and exfoliated structures are obtained when it is 1 ％. When the mass fractions of montmorillonite are 0. 5 ％ and 1％,the tensile strength, elongation at break and impact strength of the nanocomposites are better than those of pure polylactide (PLA). When they are higher, these mechanical properties become worse. SEM image of PLA-MMT0.5 (the mass fraction of montmorillonite is 0.5 ％) shows a fracture toughness characterization.关键词
聚乳酸/蒙脱土/原位聚合/纳米复合材料Key words
polylactide/ montmorillonite/ in-situ polymerization/ nanocomposite分类
化学化工引用本文复制引用
车晶,秦凡,杨荣杰..聚乳酸/蒙脱土纳米复合材料的原位聚合及表征[J].材料工程,2011,(1):28-32,37,6.
