摘要We report on curled polyvinylpyrrolidone (PVP) microfibers fabricated by a modified electrospinning with a small nail as the tip collector. PVP (45 wt%) ethanol solution is electrospun under different working voltages ranging from 10 to 15, 20, 30 and 40 kV. It is found that with the increase of working voltage, the proportion of the curled fibers increases and the uniformity of the curled fibers improves, as well as the repeat distance of the curled structures reducing. Particularly, some curled fibers develop into helical structures under relatively high voltages. Further analyses indicate that the formation mechanism for the curled polymer fibers can be ascribed to electrical driven bending instability and/or mechanical jet buckling when hitting the collector surface. This modified electrospinning technique may be a cost-effective approach for the mass production of curled microfibers.
Abstract:We report on curled polyvinylpyrrolidone (PVP) microfibers fabricated by a modified electrospinning with a small nail as the tip collector. PVP (45 wt%) ethanol solution is electrospun under different working voltages ranging from 10 to 15, 20, 30 and 40 kV. It is found that with the increase of working voltage, the proportion of the curled fibers increases and the uniformity of the curled fibers improves, as well as the repeat distance of the curled structures reducing. Particularly, some curled fibers develop into helical structures under relatively high voltages. Further analyses indicate that the formation mechanism for the curled polymer fibers can be ascribed to electrical driven bending instability and/or mechanical jet buckling when hitting the collector surface. This modified electrospinning technique may be a cost-effective approach for the mass production of curled microfibers.
(Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)
引用本文:
TANG Cheng-Chun;CHEN Jun-Chi;LONG Yun-Ze**;YIN Hong-Xing;SUN Bin;ZHANG Hong-Di
. Preparation of Curled Microfibers by Electrospinning with Tip Collector[J]. 中国物理快报, 2011, 28(5): 56801-056801.
TANG Cheng-Chun, CHEN Jun-Chi, LONG Yun-Ze**, YIN Hong-Xing, SUN Bin, ZHANG Hong-Di
. Preparation of Curled Microfibers by Electrospinning with Tip Collector. Chin. Phys. Lett., 2011, 28(5): 56801-056801.
[1] Lu X F, Wang C and Wei Y 2009 Small 5 2349
[2] Reneker D H and Yarin A L 2008 Polymer 49 2387
[3] Huang Z M, Zhang Y Z, Kotaki M and Ramakrishna S 2003 Compos. Sci. Technol. 63 2223
[4] Bajpai V, Dai L and Ohashi T 2004 J. Am. Chem. Soc. 126 5070
[5] Kong X Y and Wang Z L 2003 Nano Lett. 3 1625
[6] Reneker D H, Yarin A L, Fong H and Koombhongse S 2000 J. Appl. Phys. 87 4531
[7] Kessick R and Tepper G 2004 Appl. Phys. Lett. 84 4807
[8] Lin T, Wang H X and Wang X G 2005 Adv. Mater. 17 2699
[9] Zhang B F, Li C J and Chang M 2009 Polym. J. 41 252
[10] Shin M K, Kim S I and Kim S J 2006 Appl. Phys. Lett. 88 223109
[11] Du J S, Yang Q B, Wang Y Z, Yang S T, Bai J, Wang S G, Song Y, Li Y X and Wang C 2006 Chem. J. Chin. Universities 27 1178 (in Chinese)
[12] Han T, Reneker D H and Yarin A L 2007 Polymer 48 6064
[13] Yu J, Qiu Y J, Zha X X, Yu M, Yu J L, Rafique J and Yin J 2008 Eur. Polym. J. 44 2838
[14] Tan J S, Long Y Z and Li M M 2008 Chin. Phys. Lett. 25 3067
[15] Li M M, Yang D Y, Long Y Z and Ma H W 2010 Nanoscale 2 218
[16] Li M M, Long Y Z, Yin H X and Zhang Z M 2011 Chin. Phys. B 20 048101
[17] Li M M, Long Y Z, Tan J S, Yin H X, Sui W M and Zhang Z M 2010 Chin. Phys. B 19 028102
[18] Zhao J G, Zhang Z X, Ma Z W, Duan H G, Guo X S and Xie E Q 2008 Chin. Phys. Lett. 25 3787
[19] Tong K Q, Xu C X, Wang Q, Gu B X, Zheng K, Ye L H and Li X S 2008 Chin. Phys. Lett. 25 4453