晶须硅对聚碳酸酯性能的影响  

Effect of Silicon Whisker on Properties of Polycarbonate

作　　者：刘斌[1] 孙小文 邱谍 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心聚合物成型加工工程教育部重点实验室,广东广州510640

出　　处：《塑料科技》2012年第4期61-64,共4页Plastics Science and Technology

摘　　要：利用熔融共混法制备了聚碳酸酯(PC)/晶须硅共混物,并考察了晶须硅对共混物硬度、热变形温度、力学性能和流变性能的影响。结果表明:当晶须硅含量为5%时,PC共混物的综合性能最好,其拉伸强度66.03 MPa,断裂伸长率7.62%,缺口冲击强度7.32 kJ/m2,铅笔硬度为H,改性PC体系为假塑性流体,其线性相关性系数为736.631,非牛顿指数为0.843。Polycarbonate（PC）/silicon whisker blend was prepared by melt blending.The effects of silicon whisker on hardness,heat deflection temperature,mechanical property and rheological property of PC were investigated.The results show that when silicon whisker content is 5%,the comprehensive properties of PC blend are the best,its tensile strength is 66.03 MPa,elongation at break is 7.62%,notched impact strength is 7.32 kJ/m2,the pencil hardness is H,the modified PC system is pseudo-plastic fluid,its linear correlation coefficient is 736.631,non-newtonian index is 0.843.

关 键 词：晶须硅 聚碳酸酯 力学性能 流变性能 抗划伤性能 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]