SMA两性衍生物复鞣剂的制备与复鞣性能研究  

Preparation of amphoteric SMA ramification and research of its retanning properties

作　　者：袁明芮 强西怀 YUAN Ming-rui;QIANG Xi-huai(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi’an 710021,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Xi’an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]轻化工程国家级实验教学示范中心,陕西西安710021

出　　处：《应用化工》2023年第3期718-721,725,共5页Applied Chemical Industry

基　　金：国家自然基金重点研发基金项目(2017YFB0308500);陕西科技大学研究生创新基金项目(TD12-04)。

摘　　要：在DMF溶剂体系中,以N,N-二甲基乙醇胺(DEMA)对苯乙烯-马来酸酐共聚物(SMA)进行酯化改性,制备了一系列两性SMA衍生物(SMA-DEMA)。将系列产物的钠盐应用于铬鞣坯革复鞣工序中,并与SMA钠盐进行对比。结果表明,用两性SMA衍生物钠盐复鞣的坯革纤维表面正电性提高,对阴离子染料吸收结合性增强,坯革败色作用明显减弱;坯革的抗张强度、抗撕裂强度、热稳定性和粒面观感等复鞣效应与SMA钠盐复鞣基本接近。A series of amphoteric SMA derivatives(SMA-DEMA)were synthesized by esterification of styrene-maleic anhydride copolymer(SMA)with N,N-dimethylethanolamine(DEMA)in DMF solvent system.The sodium salts of the series of products were applied to the retanning process of chrome tanned leather,and compared with the sodium salts of SMA.The results showed that the leather fiber retanned with amphoteric SMA derivative sodium salts improved the surface electropositivity,enhanced the absorption and binding property of anionic dye,and the pastel shade of leather was obviously weakened.The tensile strength,tear strength,heat stability and grain quality of leather were similar to those of SMA retanning.

关 键 词：苯乙烯-马来酸酐共聚物 N N-二甲基乙醇胺 两性复鞣剂 复鞣 皮革 

分 类 号：TQ423.3[化学工程] TS529.2[轻工技术与工程—皮革化学与工程]