Fabrication of Gradient Wetting Patterned Surface and Its Performance in Transportation

LIU Qian-kai, ZHANG Jie, SUN Peng-cheng, WANG Jian-ping, ZHAO Wei, YANG Yin-fei, ZHAO Guo-long, CHEN Ni, LI Liang, HE Ning, HAO Xiu-qing

Surface Technology ›› 2023, Vol. 52 ›› Issue (10) : 295-303.

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Surface Technology ›› 2023, Vol. 52 ›› Issue (10) : 295-303. DOI: 10.16490/j.cnki.issn.1001-3660.2023.10.025

Fabrication of Gradient Wetting Patterned Surface and Its Performance in Transportation

  • LIU Qian-kai1, ZHANG Jie1, WANG Jian-ping1, ZHAO Wei1, YANG Yin-fei1, ZHAO Guo-long1, CHEN Ni1, LI Liang1, HE Ning1, HAO Xiu-qing1, SUN Peng-cheng2
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Abstract

Spontaneous transportation of liquid on wetting pattern has promising applications in water-harvesting devices, heat transfer equipment, etc. However, the technology is limited due to the expensive and complex processing techniques, and weak transportation capacities. An arrow-shaped patterned surface based on a gradient hydrophobic substrate is proposed to address the problems of short transportation distance and slow speed, which can effectively improve liquid transportation performance.

Key words

nanosecond laser; gradient hydrophobic substrate; arrow-shaped patterned surface; transportation distance; wettability; directional transportation

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LIU Qian-kai, ZHANG Jie, SUN Peng-cheng, WANG Jian-ping, ZHAO Wei, YANG Yin-fei, ZHAO Guo-long, CHEN Ni, LI Liang, HE Ning, HAO Xiu-qing. Fabrication of Gradient Wetting Patterned Surface and Its Performance in Transportation[J]. Surface Technology. 2023, 52(10): 295-303
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