【摘要】 本文将颗粒大小测定方法引入到高分子共混物的分散相尺寸测定中 ,验证了这是表征分散相尺寸可行的方法。通过对高分子共混物 (PP PA1 0 1 0 )脆性断面的电镜照片进行计算机处理和统计 ,得到分散相的粒径分布。发现各种当量直径 (dF、dP、dC)均较好的符合正态分布 ,并求出了其分布函数 ,还找到了一种参数 (ΨW =dC dF)可以表征颗粒的形状。另外 ,讨论了刻蚀方法对测定结果的影响及误差来源等更多还原

【Abstract】 In this paper a method of particle size measurement introduced into the size and shape measurement of dispersed phase in polymer blend is found feasible. The particle size distribution was obtained through computer’s processing the SEM photographs of polymer blend(PP/PA1010)broken surface after brittle failure and counting particle numbers. It is found that the statistics results on three types of equivalent diameters are coincident with the normal probability function, and then their distribution functions were reached. A parameter, or namely shape factor Ψ W= d C/ d F, is determined to characterize the shape of particle. In addition, the effects of different etching methods on the measurement results and the error source were discussed.更多还原