纤维素纳米晶须/柞蚕丝素纳米纤维的制备与表征  

Preparation and Characterization of CNW/TSF Nanofiber

作　　者：何建新[1] 张雪丽[1] 韩啟明 谭卫琳 连艳平[1] 

机构地区：[1]中原工学院河南省功能性纺织材料重点实验室,河南郑州450007

出　　处：《东华大学学报（自然科学版）》2014年第3期258-261,共4页Journal of Donghua University(Natural Science)

基　　金：河南省教育厅科学技术研究重点资助项目(14A540003;14A540006);河南省人才培养联合基金资助项目(U1204510);河南省基础与前沿技术研究计划资助项目(102300410200)

摘　　要：采用同轴静电纺丝技术,制备了纤维素纳米晶须/柞蚕丝素(CNW/TSF)核壳结构纳米纤维.利用扫描电子显微镜(SEM)、透射电镜(TEM)、X射线衍射研究了不同核壳质量比的CNW/TSF纳米纤维的形貌和结晶结构.研究表明:与纯柞蚕丝素纳米纤维相比,核壳结构的纳米纤维的直径显著增加;在所选的质量比范围内,CNW含量对核壳结构纳米纤维的直径影响不明显;CNW/TSF纳米纤维呈现明显的核壳结构,且作为皮层的TSF能够很好地包覆作为芯层的CNW;随着CNW与TSF质量比的增加,芯层厚度逐渐增加,皮层厚度逐渐减小,但CNW和TSF相应的结晶结构均未发生改变.The cellulose nano-whiskers/tussah silk fibroin （CNW/TSF） nanofibers of different mass ratio were prepared by coaxial electrospinning technology. The morphology and the crystal structure of coreshell nanofibers were investigated by scanning electron microscope （SEM）, transmission electron microscope （TEM） and X-ray diffraction analyses. The results showed that the diameter of CNW/TSF core-shell nanofibers were increased distinctly compared with the pure TSF electrospinning nanofibers, and in the range of different mass ratio for all core-shell nanofibers, CNW content had an inconspicuous influence on the diameter of core-sheU structure nanofibers. The obvious core-shell structure was observed, CNW could be encased commendably by TSF. The thickness of core would be gradually increased and it was inversed to shell, as the proportion of CNW/TSF increased. In addition, the corresponding crystallization structure of CNW or TSF did not change.

关 键 词：柞蚕丝素(TSF) 纤维素纳米晶须(CNW) 同轴静电纺丝 核壳结构 

分 类 号：TS102.2[轻工技术与工程—纺织工程]