离子液体增塑熔纺制备醋酸丁酸纤维素纤维  

Preparation of Melt Spun Cellulose Acetate Butyrate Fibers with Ionic Liquids as Plasticizers

作　　者：王心航[1,2,3] 王燕萍 夏于旻[1,2,3] 王依民[1,2,3] 

机构地区：[1]东华大学高性能纤维教育部重点实验室,上海201620 [2]东华大学纤维材料改性国家重点实验室,上海201620 [3]东华大学材料科学与工程学院,上海201620

出　　处：《东华大学学报（自然科学版）》2017年第6期779-784,共6页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(21404024);博士后基金(2016M591573);中央高校基本业务费(2232014D3-20;2232015G1-11)

摘　　要：以离子液体1-丁基-3-甲基咪唑四氟硼酸盐(IL)为醋酸丁酸纤维素(CAB)的增塑剂进行熔融纺丝.经IL增塑后,CAB的玻璃化转变温度和表观黏度下降,熔融指数升高,表明IL对CAB具有良好的增塑效果,这使得CAB的纺丝加工窗口得以拓宽,可纺性得到改善.热重分析结果表明,IL使CAB的热稳定性下降.纤维水洗试验结果表明,水洗可将CAB纤维中的IL脱除.Cellulose acetate butyrate （ CAB ） was plasticized by the ionic liquid 1-butyl-3- methylimidazolium tetrafluoroborate （IL） for melt spinning. After being plasticized by IL, both the glass transition temperature and apparent shear melt viscosity of CAB declined, while the melt flow index increased, indicating a good plasticizing effect of IL on CAB. The plasticized CAB showed a wider processing window for melt spinning and a better spinnability compared to pure CAB. The thermogravimetric analysis revealed that the thermostability of CAB was decreased after incorporating CAB with IL. It was found that the IL resided in the CAB fibers could be completely removed after washing.

关 键 词：离子液体 醋酸丁酸纤维素 增塑 熔融纺丝 

分 类 号：TQ341.6[化学工程—化纤工业]