胶原纤维在不同离子液体中溶解特性的研究与比较  

Dissolution Characteristics and Comparison of Collagen Fiber in Imidazole Ionic Liquids

作　　者：付飞飞[1] 邓宇[1] 程宝箴[1] 

机构地区：[1]天津科技大学材料与化学工程学院,天津300457

出　　处：《中国皮革》2010年第23期21-24,共4页China Leather

基　　金：天津市应用基础及前沿技术研究计划项目(07JCYBJC01900项目资助)

摘　　要：研究了胶原纤维在溴代1-乙基-3-甲基咪唑([Emim]Br)离子液体中的溶解特性,结果表明:在原料比为1∶6条件下的适宜溶解温度为110℃,溶解时间10min,用冷水冲洗残渣,溶解率可达21.0%。通过比较红外光谱图可知,离子液体对胶原纤维的溶解属于直接溶解。通过比较发现,相对[Amim]Cl离子液体的溶解性能而言,[Emim]Br能够在较低的温度下和较短的时间内,实现对胶原纤维的高效溶解,更具有溶解优势。研究结果表明:胶原纤维在不同的离子液体中,其溶解特性有着显著的区别。The solubility of collagen fiber in the bromination of 1 - ethyl - 3 - methyl imidazole （ [ Emim] Br） ionic liquid was investigated. The results show that the appropriate solution temperature is 110℃, dissolution time is 10min, rinse residue with cold water under the conditions of material ratio 1：6, dissolution rate can up to 21.0%. By comparing infrared spectra, ionic liquids are direct solvents for collagen fiber. By comparison, [ Emim] Br has more advantages for achieving efficient solution of the collagen fibers at lower temperature and shorter time relative to [ Amim] Cl ionic liquid. The results show that collagen fibers has a significant different solubilities in different ionic liquids.

关 键 词：离子液体 胶原纤维 皮革 溶解 

分 类 号：TS51[轻工技术与工程—皮革化学与工程]