重氮盐在颜料表面改性中的应用研究  

Application of Diazonium Salts in the Surface Modification of Pigments

作　　者：沈倩 王晗[2] 沈永嘉[3] SHEN Qian;WANG Han;SHEN Yongjia(Rezux Chemistry(Shanghai)Ltd.,Shanghai 200120,China;School of Chemistry and Chemical Engineering,Shanghai University of Engineering Science,Shanghai 200120,China;Institute of Fine Chemicals,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]瑞素士化学(上海)有限公司,上海200120 [2]上海工程技术大学化学化工学院,上海200120 [3]华东理工大学精细化工研究所,上海200237

出　　处：《上海染料》2025年第1期10-15,共6页Shanghai Dyestuffs

摘　　要：芳香族伯胺重氮盐能在水中与碳黑和有机颜料的表面发生接枝反应,引入重氮盐的剩基。利用该反应对炭黑和有机颜料进行表面改性。如果所用的重氮盐中含有磺酸基,可改善炭黑和有机颜料的亲水性,使其易分散于水性介质中,且形成的胶体也具有较高的稳定性。聚醚胺类化合物可在水中与改性颜料中的磺酸基反应,生成相应的磺酸铵盐,这可改善有机颜料的亲油性,从而显著降低其在有机介质中的黏度。The diazonium salts of aromatic primary amines can undergo grafting reactions on the surface of carbon black and organic pigments in water by introducing the residue group of diazonium salts.Based on the reaction,the surface modifications of carbon black and organic pigments can be done.If the diazonium salts used contain one or more sulfonic acid groups,the hydrophilicity of modified carbon black and modified organic pigments will be increased and then make them easily disperse in aqueous media.The colloids formed also have high stability.Polyetheramines can further react with sulfonic acid groups in modified pigments in water and corresponding ammonium sulfonates are generated,which can increase the lipophilicity of the modified organic pigments formed and significantly decrease viscosity in organic media.

关 键 词：重氮盐 炭黑 有机颜料 表面改性 

分 类 号：TQ620.4[化学工程—精细化工]