高分子共混物分散相尺寸和形状的表征  

The Characterization of Size and Shape of Dispersed Phase in Polymer Blend

作　　者：张丁浩[1] 盛京[1] 谢志民[1] 李家深 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《化学工业与工程》2002年第2期141-146,178,共7页Chemical Industry and Engineering

基　　金：国家自然科学基金重点资助项目 (5 97330 70 )

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 。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.

关 键 词：高分子共混物 扫描电镜照片 分散相表征 粒径分布 

分 类 号：O631.13[理学—高分子化学]