摘要
研究了新型无机功能填料——纳米硫酸钡(nano-BaSO4)的表面处理及添加量对聚氯乙烯(PVC)力学性能的影响以及纳米粒子在PVC基体中的分散情况。结果表明,添加1%经过硬脂酸处理的纳米硫酸钡可以对PVC基体产生显著的增韧补强作用,其冲击断面呈现明显的韧性断裂特征。且SEM微观形貌观察表明,纳米粒子在PVC基体中分散良好。
In this paper, poly （vinyl chloride）/BaSO4 （PVC/BaSO4） nano-composites was prepared by means of melt mixing. And the influence of filler surface treatment on the mechanical properties of PVC/BaSO4nano-composites was investigated. It was proved that nano-BaSO,treated by stearic acid can contribute to the uniform dispersion of nano-fillers in the matrix and improve the strength and toughness of the composites greatly, in which the preferred content is 10~. In addition, the micro-structure and the fracture section of PVC/ BaSO4nano-composites were studied with SEM. The morphology photograph shows that the binary composite occurs a brittle-ductile transition by adding nano-BaSO4（1%） treated by stearic acid.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2007年第5期144-147,151,共5页
Polymer Materials Science & Engineering
关键词
聚氯乙烯
纳米硫酸钡
表面处理
力学性能
poly（vinyl chloride）
nano-BaSO4
surface treatment
mechanical properties
作者简介
联系人：杨斌，主要从事聚合物加工的研究，E-mail：byang@sjtu．edu．cn
