多环氧共聚物与Al(Ⅲ)协同的清洁化无铬鞣制技术  

Clean Chrome-Free Tanning Technology Based on Synergic Effects of Multi Epoxy Copolymer and Al(Ⅲ)W

作　　者：王俊超 陈勇波 朱瑞鑫 刘公岩[1,2] ANG Junchao;CHEN Yongbo;ZHU Ruixin;LIU Gongyan(National Engineering Research Center of Clean Technology in Leather Industry,Sichuan University,Chengdu 610065,China;Key Laboratory of Leather Chemistry and Engineering(Sichuan University),Ministry of Education,Chengdu 610065,China)

机构地区：[1]四川大学制革清洁技术国家工程研究中心,四川成都610065 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《中国皮革》2023年第7期1-9,共9页China Leather

基　　金：基于封闭胶原侧链氨基改性的滩羊皮无害化鞣制新技术(2022ZDYF0354)。

摘　　要：采用一锅法自由基共聚分别制备了具有不同环氧含量的聚乙二醇化二元共聚物(PPG),探究了其作为有机预鞣剂与铝鞣剂之间的协同鞣制作用。结果表明,PPG与Al(Ⅲ)具有良好的结合鞣制效果,PPG预鞣能够有效提高铝鞣坯革的热稳定性和机械强度,并且鞣制效果随共聚物环氧基含量的变大而增强。此外,环氧基可通过共价交联封闭胶原氨基,从而能够实现无盐浸酸作用。PPG-Al结合鞣制能够从源头上避免使用铬鞣剂和中性盐,在清洁化制革领域具有良好的应用潜力。The PEGylated epoxy copolymer(PPG)with different epoxy content was synthesized via one-pot free radical copolymerization.The PPG was further used as an organic pretanning agent,and the synergistic tanning effects of PPG and aluminum tanning agents were examined.According to the findings,there are good combination tanning effects between PPG and Al(Ⅲ).The thermal stability and mechanical strength of the aluminum tanned leather can be improved by PPG pretanning,and the tanning effects are strengthened with the increasing epoxy content in PPG.Moreover,the epoxy can block collagen amino groups by covalent cross-linking and achieving salt-free pickling.PPG-Al combination tanning can eliminate the use of chrome tanning agents and neutral salt from the source,which makes it has good application potential in the field of clean leather manufacturing.

关 键 词：聚乙二醇化环氧共聚物 铝鞣 无铬结合鞣制 无盐浸酸 清洁化制革 

分 类 号：TS54[轻工技术与工程—皮革化学与工程]