A Comparative Study Characterization Methods of Carbon Black Dispersion in Solution and Emulsion SBR Compounds Prepared at Various Mixing Levels

Emulsion과 Solution SBR Compound에 있어서 혼합시간(混合時間)에 따른 Carbon Black분산(分散)의 분석방법(分析方法)들 사이의 비교연구(比較硏究)

An experimental study of the development of carbon black dispersion by an internal mixer and its characterization is presented. We describe the measurement of carbon black agglomerate size and related characteristics using four different experimental techniques : optical microscopy, scanning elctrion microscopy, surface roughness, and electrical couductivity. The results from these different experiments are compared uning the same carbon black for a series of six different butadiene-styrene copolymers. The results from the different techniques are cross plotted and are critically discussed. It is found that surface but then sharply deteriorate. At subsequent stages of mixing optical microscopy seemed the most reliable measure.