水性体系中炭黑分散的影响因素  

Factors Influencing the Dispersion of Carbon Black in Water Borne System

作　　者：魏彤[1] 张友兰[2] 王利军[2] 白光君[3] 魏淑杰[3] 

机构地区：[1]中科院山西煤化所,太原030001 [2]天津大学化工学院,300072 [3]大庆石油管理局钻井二公司,163413

出　　处：《涂料工业》2002年第7期12-17,共6页Paint & Coatings Industry

摘　　要：考察了炭黑表面性质、分散剂疏水基团结构对炭黑与分散剂锚接强度的影响 ,以及电解质的加入对分散后炭黑粒子间的电斥力和炭黑分散稳定性的影响。研究表明 ,疏水端平面结构好、亲水端可解离的阴离子聚合物分散剂抗电解质能力很强 ,以其为分散剂分散原生粒径较小的酸性炭黑 ,可以得到稳定性优良的分散液。The influence of surface property of carbon black and the structure of hydrophobic groups in dispersants on the arching strength of dispersant with carbon black,and the influence of incorporation of hydrolysate on the electrical repellency among the dispersed carbon black particles and the dispersing stability have been studied. It has shown that the polymer dispersant with flat structure in the hydrophobic group and dissociable anion in the hydrophilic group is much stable against the hydrolytes, which can be used to disperse acid carbon black comprising fine original particles and to form a stable dispersion .

关 键 词：水性体系 炭黑 分散 影响因素 水性涂料 电解质 

分 类 号：TQ638[化学工程—精细化工] TQ630.49