咪唑类离子液体对涤纶的碱减量加工  

Alkali deweighing processing of polyester fiber with imidazole ionic liquid

作　　者：曹机良 孟春丽 曹毅 闫凯 李元青 

机构地区：[1]河南工程学院材料与化学工程学院,郑州450007

出　　处：《丝绸》2017年第12期21-25,共5页Journal of Silk

基　　金：河南省高等学校重点科研项目资助计划项目(17A540002)

摘　　要：采用溴化1-十四烷基,3-甲基咪唑(1-14)、溴化1-十四烷基,3-己烷基咪唑(6-14)、溴化1-十四烷基,3-癸烷基咪唑(10-14)三只离子液体作为涤纶织物的碱减量促进剂,研究了氢氧化钠和促进剂用量,以及碱减量温度、时间等因素对涤纶织物碱减量的影响,并与常规碱减量促进剂十六烷基三甲基溴化铵(CTAB)比较,测试了碱减量涤纶织物的减量率。结果得出:咪唑类离子液体可用于涤纶织物碱减量加工促进剂,并可有效提高碱减量加工效率,提高碱剂利用率;降低工艺中碱剂的用量,可通过控制工艺温度与保温时间来改变织物的减量率;试验得出促进剂对涤纶碱减量促进效果为10-14>CTAB>6-14>1-14,其中咪唑类离子液体促进剂的促进效果与促进剂分子中碳链长度呈现正相关。Three ionic liquids（ 1-14 alkyl bromide,3-methylimidazole（ short as 1-14）,1-14 alkyl bromide,3-hexane imidazole（ short as 6-14）,1-14 alkyl bromide,3-decane imidazole（ short as 10-14）） were applied as the accelerants for alkali deweighting of polyester fabrics to study the effects of the dosage of sodium hydroxide and accelerants as well as the temperature and time of alkali deweighting on alkali deweighting of polyester fabrics were analyzed,and the results were compared with the results of conventional alkali deweighing accelerator sixteen alkyl methyl bromide（ CTAB）. Meanwhile,the deweighting rate of polyester fabrics was tested. The results show that imidazolium ionic liquid can be used as alkali deweighting accelerant of polyester fabrics,and can effectively improve the processing efficiency of alkali deweighting,enhance the utilization rate of alkali agent and reduce the dosage of alkali agent. By controlling the temperature and time,the deweighting rate of the fabric can be changed. The results show that the promotion effect of accelerants on alkali deweighting of polyester fiber is as follows： 10-14 CTAB 6-14 1-14. The promotion effect of imidazole ionic liquid accelerant is positively correlated with the length of carbon chain in the accelerant molecule.

关 键 词：涤纶 烷基咪唑 离子液体 碱减量 水解 

分 类 号：TS195.523[轻工技术与工程—纺织化学与染整工程]