二醋酸纤维素多孔超细纤维的制备研究  

Fabrication of cellulose acetate porous ultrafine fiber

作　　者：张金宁[1] 宋明玉[1] 王小宇[1] 邵兴贤 徐阳[1] 魏取福[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,无锡214122

出　　处：《化工新型材料》2016年第8期196-198,共3页New Chemical Materials

基　　金：江苏省产学研联合创新资金前瞻性研究项目(BY2014023-06)

摘　　要：以二氯甲烷/丙酮为溶剂,借助高挥发溶剂的制孔性,通过静电纺丝技术制备二醋酸纤维素多孔超细纤维。探讨了溶剂配比、溶液浓度对多孔超细纤维形貌的影响。通过扫描电镜观察纤维形貌,通过电导率仪测试纺丝液电导率,运用黏度计测试纺丝液黏度。结果表明,溶剂配比和溶液浓度是影响纤维形貌的重要因素。二氯甲烷体积比例由90%降低到30%的过程中,形貌由"柱状纤维"过度到"带状纤维"最终生成"颗粒状"。溶液浓度由2%(wt,质量百分数,下同)上升到5%时,形貌由"颗粒状"变为"带状纤维"最终生成有粗节的"柱状纤维"。Cellulose acetate porous ultrafine fibers were produced from highle volatile solvent system by electrospin- ning using DCM/acetone as solvent. The effect of the solvent ratio and concentration on the morphology of fibers were in- vestigated. The fiber surface morphology were studied by scanning electron microscopy（SEM）, the conductivity of cellulose acetate solution was measured by conductivity meter,and the viscosity of solution was measured with viscometer. The ratio of solvent and concentration were important parameters affecting fiber morphology. With the decreasing of DCM/acetone from 9：1 to 3：7, the morphology was transformed from ＂cylindrical fibers＂ to ＂ribbon-like fibers＂, and finally to ＂porous particle＂. With increasing of cellulose acetate concentration from 2wt% to 5wt%, the morphology was transformed from ＂porous particle＂ to ＂ribbon-like fibers＂ , and finally to ＂cylindrical fibers＂.

关 键 词：静电纺丝 二醋酸纤维素 多孔纤维 

分 类 号：TQ340.64[化学工程—化纤工业]