摘要
利用同轴静电纺丝方法制备碳纳米管/生物聚合物的"壳-芯"结构纤维,实验发现碳纳米管加入(质量分数)0.01%能很好与聚合物融为一体,纺出内外层均可以复合碳纳米管的复合纤维,外层直径最大4000 nm、内层为2000 nm,而最小外直径165 nm,外层壁厚为127 nm,控制方法比单轴静电纺丝复杂,电压提高有利于纤维直径减小,可达到几微米,但纺丝速率达到最大值有一个最佳电压范围,碳纳米管加入提高了纤维的热稳定性,拉伸提高纤维的结晶度。
The core-shell fibers made of two identical bio-polymers were processed in one type of co-electrospinning experiment. In the case, a small amouts of carbon nanotube （0.01% ）were add to the bio-polymer solutions in liquidliquid of no-Newtonian in order to gain carbon nanofibers. The total diameters of the compound fibers is the most about 4000 nm and least 165 nm, the thick shell is about 127 nm, whereas the diameter of the core region is about 2000 nm. The voltage power increases with the decrease of the compound fibers diameters, but the mass flow rate determine on the suitable rang to gain high output rate. The XRD results demonstrate that the stretch improve on crystallinity.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第3期134-137,141,共5页
Polymer Materials Science & Engineering
