A study on environmental stress cracking in nano-SiO2-filled polycarbonate

被引：0
|
作者：
Leyu Lin
Alois K. Schlarb
机构：
[1] University of Kaiserslautern,Composite Engineering cCe
[2] INM—Leibniz-Institute for New Materials,Research Center OPTIMAS
[3] University of Kaiserslautern,undefined
来源：
Journal of Materials Science | 2012年 / 47卷
关键词：
Stress Intensity Factor; Crack Opening Displacement; Damage Area; Crack Propagation Rate; Particle Debonding;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, the environmental stress cracking (ESC) resistance of nano-SiO2 particle-filled polycarbonate (PC) was investigated at room temperature by using a fracture mechanical test method. Two PC-based nanocomposites with nano-SiO2 content of 1 and 4 vol% were compounded using a twin-screw extruder. The incorporation of nanoparticles into PC leads to an improvement in ESC resistance, which increases with increased filler loading up to 4 vol%. Fractography analyses suggest that the formation of cavities/debonding and localized microdeformation of matrix induced by nanoparticles as a result of energy dissipation are responsible for the improvement of ESC resistance.
引用
收藏
页码：6614 / 6620
页数：6
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