聚羧酸型超分散剂的合成及其在液体分散染料中的应用  

Synthesis of polycarboxylic acid hyperdispersant and its application in liquid disperse dyes

作　　者：李金雨 宋希雨 荆丽丽 姜波 许长海[1] 蒋阳 LI Jinyu;SONG Xiyu;JING Lili;JIANG Bo;XU Changhai;JIANG Yang(College of Textile and Clothing,Qingdao University,Qingdao 266071,China;Zhejiang Provincial Key Laboratory of Clean Dyeing and Finishing Technology at Shaoxing University of Arts and Sciences,Shaoxing 312000,China;Penglai Jiaxin Dye Chemical Co.,Ltd.,Yantai 265600,China)

机构地区：[1]青岛大学纺织服装学院,山东青岛266071 [2]绍兴文理学院浙江省清洁染整技术研究重点实验室,浙江绍兴312000 [3]蓬莱嘉信染料化工股份有限公司,山东烟台265600

出　　处：《应用化工》2024年第12期2908-2912,2918,共6页Applied Chemical Industry

基　　金：浙江省清洁染整技术研究重点实验室开放基金(QJRZ2316)。

摘　　要：为了提高液体分散染料的储存稳定性能,以异戊烯醇聚氧乙烯醚为溶剂化链,通过引入含羧酸、羟基、磺酸以及酰胺基团的单体进行自由基聚合反应,合成具有不同锚固基团的聚羧酸型超分散剂。利用聚羧酸超分散剂制备液体分散染料,通过粒径、Zeta电位、流变等测试表征,研究超分散剂结构对液体分散染料性能的影响。结果表明:使用AHT2400-7和AST2400-7分散剂制备的液体分散染料具有良好的储存稳定性,经过90 d储存后,染料粒径小于430 nm、Zeta电位的绝对值高于30 mV。同时由AHT2400-7和AST2400-7分散剂制备的液体分散染料具有良好的触变恢复性能,经过剪切破坏后,黏度恢复可达80%以上。使用液体分散染料对涤纶进行染色,染色深度高于同质量的粉状染料。In order to improve the storage stability of the liquid disperse dyes,the polycarboxylate-type hyperdispersants were synthesized through free radical polymerization with carboxylic acid,hydroxyl group,sulfonic acid,and amide group as the anchoring groups and isopentenol polyoxyethylene ether as the solvation chain.Polycarboxylic acid hyperdispersants with different anchoring groups were utilized for the preparation of liquid disperse dyes.The influence of hyperdispersant structure on the properties of liquid disperse dyes was studied through particle size,Zeta potential,rheology,and other tests.The results showed that the liquid disperse dyes prepared with AHT2400-7 and AST2400-7 dispersants had good storage stability.After 90 d of storage,the particle size of the dyes was less than 430 nm,and the absolute value of the Zeta potential was higher than 30 mV.At the same time,the liquid dispersed dyes prepared by AHT2400-7 and AST2400-7 dispersions have good thixological recovery properties,the viscosity recovery can be more than 80%after shear damage.The dying depth of polyester dyed with liquid disperse dyes was higher than that dyed with powder dyes with the same quality.

关 键 词：液体分散染料 超分散剂 聚羧酸盐 储存稳定性 

分 类 号：TQ619.2[化学工程—精细化工]