阴离子表面活性剂对超细颜料水性分散体系性能的影响  

The effects of anionic surfactants on the property of ultra-fine aqueous pigment dispersion system

作　　者：郝龙云[1] 蔡玉青[1] 房宽峻[1] 

机构地区：[1]青岛大学化学化工与环境学院,山东青岛266071

出　　处：《印染助剂》2009年第4期10-13,共4页Textile Auxiliaries

摘　　要：分别以3种阴离子表面活性剂[亚甲基二萘磺酸钠(NNO)、十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(DBS)]为分散剂,用M-110EHI型高压高剪切微流喷射粉碎机制备阴离子型超细有机颜料水性分散体系,研究了粉碎次数对颜料粒径的影响,讨论了不同分散剂对体系中颜料粒径、粘度、稳定性能及对棉织物染色性能的影响.结果表明:使用各种阴离子分散剂、粉碎25次,可使颜料颗粒的粒径达到最小,在相同粉碎次数下,降低颜料粒径效果的次序为NNO>DBS>SDS.各分散剂用量为12.5%(对颜料质量)时,可使颜料粒径最小和体系粘度降到较低值;分散剂NNO本身具有萘环结构,可以和颜料粒子表面形成更为牢固的吸附,其带电荷数也高于其他两种分散剂,对分散体系的稳定作用也更强.相对于常规颜料体系,超细颜料分散体系可将棉织物的颜色染得更深.Taking three anionic surfactants sodium methylenebisnaphthalene sulsonate （NNO）, sodium lauryl sulfate （SDS） and sodium dodecyl benzene sulfonate （DBS） as dispersants, the anionic ultra-fine organic pigment dispersion system was prepared using an M-110EHI high pressure and shearing microflow jet grinding machine. The influences of grinding times on the pigment particle size was investigated. The effects of various dispersants on the pigment particle size, viscosity, stability and dyeing behavior of cotton fabric were also discussed. The results indicated that the lowest particle size of pigment could be obtained by various anionic dispersants for 25 times grinding. Under the same grinding times, the order of lowering the pigment particle size was： NNQ〉DBS〉 SDS. The pigment particle size and dispersion viscosity would be at the lowest level when the dispersant was 12.5% （based on pigment mass）. Dispersant NNO was naphthalene ring structure, which could form firmer absorption with pigment particle. And the charge numbers of NNQ were higher than other two dispersants, NNQ had stronger stability to dispersing system. Comparing with the conventional pigment dispersion system, the ultra-fine pigment system can give the cotton fabric higher color depth.

关 键 词：阴离子 表面活性剂 超细颜料 粒径 粘度 稳定性 

分 类 号：TQ423.11[化学工程]