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Well-ordered polymer nano-fibers with self-cleaning property by disturbing crystallization process
Yang, Qin1; Luo, Zhuangzhu1; Tan, Sheng1; Luo, Yimin1; Wang, Yunjiao1; Zhang, Zhaozhu2; Liu, Weimin2
2014-07-15
摘要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 mu m) polymer nano-fibers with a certain direction are fabricated by external macroscopic force (F-blow) interference introduced by H-2 gas flow, leading to superior superhydrophobicity with a water contact angle (WCA) of 170 degrees and a water sliding angle (WSA) of 0-1 degrees. In contrast, nano-wires and nano-bridges (1-8 mu m in length/10-80 nm in width) are generated by "spinning/stretching" under internal microscopic force (F-T) 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.
关键词Polymer Nano-fibers/spheres Controllable Superhydrophobicity Disturbing crystallization
DOI10.1186/1556-276X-9-352
发表期刊NANOSCALE RESEARCH LETTERS
ISSN1556-276X
卷号9页码:10
通讯作者Luo, ZZ (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China.
收录类别SCI
WOS记录号WOS:000347637400002
语种英语