非离子分散剂的结构对C.I.分散黄64稳定性的影响  

The influence of nonionic dispersant structure on the dispersion stability of C.I. Disperse Yellow 64

作　　者：董霞[1] 阮迪[1] 郑兆和[1] 何瑾馨[1] 

机构地区：[1]东华大学化学化工与生物工程学院,纺织面料技术教育部重点实验室,上海201620

出　　处：《印染助剂》2010年第3期11-15,共5页Textile Auxiliaries

摘　　要：分散剂在分散染料加工和应用过程中的作用至关重要.研究了不同种类非离子分散剂对C.I.分散黄64分散稳定性的影响,并探讨了分散剂结构与性能之间的关系,结果表明:分散体系的稳定性与非离子分散剂的亲水亲油性、分散剂与染料颗粒的结合状况有很大关系.合适的亲水亲油性、分散剂疏水部分和染料颗粒结合较牢,有利于提高分散体系的稳定性.因分散剂用量较低,所制备分散体系的高温稳定性主要与非离子分散剂的浊点和其与染料颗粒的结合状况有关.同时,分散体系中加入过量的非离子分散剂将会导致其高温稳定性降低.Dispersant plays an important role in the manufacture and application processes of disperse dyes.The influence of different nonionic dispersants on the dispersion stability of C.I.Disperse Yellow 64 was investigated and the relationship between the molecular structures and properties of dispersant was discussed.The results showed that the stability of dispersion system has a lot to do with the hydrophilic-lipophhilic property and the combining situation of dispersant and dye particles.Appropriate hydrophilic-lipophhilic property and fast combination between hydrophobic part of dispersant and dye particles were helpful to improve the stability of dispersion system.Because the dosage of dispersant was low,the stability of dispersion system at high temperature mainly related to the cloud point of nonionic dispersant and its combination with dye particles.At the same time,excessive nonionic dispersant in the dispersion system could result in low stability at high temperature.

关 键 词：分散剂 分散染料 分散稳定性 非离子表面活性剂 

分 类 号：TQ423.92[化学工程]