Organoclay Induced Co-Continuous Morphology in an Asymmetric Composition of Polypropylene/Polyamide 6 Blend by a Special Compounding Sequence

摘要：

　　Three compounding sequences (direct mixing,mixing PP with premixed PA6/organoclay,intermediate feeding of PP in premelted PA6/organoclay) were utilized to evaluate the possibility of organoclay in promoting co-continuous morphology for PP/PA6 (70/30 w/w) blend.The third method turns out to be effective.For all compounding sequences,organoclay is distributed selectively in PA6 phase and at the interface.And premixing PA6 with organoclay yields a better final dispersion state of organoclay than direct mixing.The role of organoclay in enhancing melt elasticity of PA6 phase (thus reducing its ability to deform and breakup) and retarding phase inversion during blending is believed to be responsible for co-continuous morphology formation.At the same organoclay loading,the blend with co-continuous morphology displays higher dynamic storage modulus than those with matrix-dispersed morphology.

关键词： blend organoclay co-continuous morphology

作者: Li Wang Zhao-Xia Guo Jian Yu

作者单位: Key Laboratory of Advanced Materials(MOE),Department of Chemical Engineering,Tsinghua University,Beijing 100084

会议类型: 国际会议

会议名称: 7th International Symposium on High-Tech Polymer Materials(第7届国际高技术高分子材料学术会议(HTPM-VII))

会议地点: 西安

会议语种:英文

页码: 113-114

在线出版日期: 2012-11-07（万方平台首次上网日期，不代表论文的发表时间）