超细白炭黑制备的工艺优化研究  

Optimization of Production Technology for White Carbon

作　　者：唐日晨 莫红兵[1,2] 周伟[2] 徐伟箭[2] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]湖南大学化学化工学院,湖南长沙410083

出　　处：《精细化工中间体》2013年第5期59-62,共4页Fine Chemical Intermediates

摘　　要：采用化学沉淀法,以聚乙烯吡咯烷酮（PVP）和十六烷基三甲基溴化铵（CTAB）为复合分散剂制备超细白炭黑。用IR、XRD、SEM和BET等对产品的结构和性能进行表征,结果表明,优化的工艺条件为：酸化水玻璃浓度7.5°Be′,温度60~70℃,pH值8,复合分散剂用量1.6%5°Be′水玻璃。该工艺合成的超细白炭黑粒径小,平均粒径约45 nm;比表面积达215 m2/g;吸油值达3.79 mL/g。Based on chemical precipitation with polyvinylpyrrolidone（PVP）and cetyltrimethyl ammonium bromide（CTAB）as the composite dispersants,nano silica was prepared and the conditions were optimized as following： concentration of acidified water-glass 7.5 °Be′,temperature 60~70℃,pH value 8.0,dispersants dosage 1.6% 5°Be′ water-glass. The product was formed with particle size of 45 nm,specific surface area of 215 m2/ g and oil adsorption value of 3.79ml / g,and the structure was indentified with IR,XRD,SEM and BET.

关 键 词：化学沉淀法 白炭黑 复合分散剂 工艺条件 

分 类 号：TQ127.2[化学工程—无机化工]