离子液体在超临界二氧化碳染色中的应用  

Application of ionic liquids in supercritical carbon dioxide dyeing

作　　者：薛晓龙[1] 于长顺[1] 郑来久[1] 李春光[1] 王颖[1] 康瑶[1] 

机构地区：[1]大连工业大学轻工与化学工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2015年第4期246-249,共4页Journal of Dalian Polytechnic University

基　　金：国家自然科学基金资助项目(21106011);无机合成与制备化学国家重点实验室开放课题(2014-33)

摘　　要：以1-丁基-3-甲基咪唑氯盐离子液体对红麻纤维进行预处理,在超临界CO2状态下对处理后的红麻进行无水染色,分析染色温度、压力和时间对染色深度的影响。利用扫描电镜(SEM)、X射线衍射(XRD)、红外光谱(FT-IR)测定分析预处理和染色的效果。确定最佳染色工艺参数为染色温度130℃、压力25 MPa、时间45min。结果表明,离子液体可以降低红麻纤维的结晶度,增大纤维的比表面积,促进纤维与染料的结合;与传统染色相比,染色性能明显增强。The kenaf fiber was modified by 1-butyl-3-methyl imidazolium chloride ionic liquids and the pretreatment sample was dyed waterless in supercritical carbon dioxide.The influence of temperature,pressure and time on dyeing depth were analyzed.The effects of modification and dyeing were characterized by SEM,XRD and FT-IR.Best dyeing process parameters were determined as follow：dyeing temperature 130 ℃,pressure 25 MPa,dyeing time 45 min.The results showed that ionic liquids could reduce the crystallinity of kenaf fiber and increase the specific surface area,promoting the combination of fibers and dyes.Compared with the traditional process,dyeing performance of modified kenaf fiber was improved significantly.

关 键 词：离子液体 红麻纤维 超临界二氧化碳 无水染色 

分 类 号：TS193.5[轻工技术与工程—纺织化学与染整工程]