Open Access Open Badges Nano Express

Well-ordered polymer nano-fibers with self-cleaning property by disturbing crystallization process

Qin Yang1, Zhuangzhu Luo1*, Sheng Tan1, Yimin Luo1, Yunjiao Wang1, Zhaozhu Zhang2 and Weimin Liu2

Author Affiliations

1 Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People’s Republic of China

2 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China

For all author emails, please log on.

Nanoscale Research Letters 2014, 9:352  doi:10.1186/1556-276X-9-352

Published: 15 July 2014


Bionic self-cleaning surfaces with well-ordered polymer nano-fibers are firstly fabricated by disturbing crystallization during one-step coating-curing process. Orderly thin (100 nm) and long (5–10 μm) polymer nano-fibers with a certain direction are fabricated by external macroscopic force (Fblow) interference introduced by H2 gas flow, leading to superior superhydrophobicity with a water contact angle (WCA) of 170° and a water sliding angle (WSA) of 0-1°. In contrast, nano-wires and nano-bridges (1–8 μm in length/10-80 nm in width) are generated by “spinning/stretching” under internal microscopic force (FT) interference due to significant temperature difference in the non-uniform cooling medium. The findings provide a novel theoretical basis for controllable polymer “bionic lotus” surface and will further promote practical application in many engineering fields such as drag-reduction and anti-icing.

Polymer; Nano-fibers/spheres; Controllable; Superhydrophobicity; Disturbing crystallization