Chem. J. Chinese Universities ›› 2014, Vol. 35 ›› Issue (8): 1726.doi: 10.7503/cjcu20140322

• Physical Chemistry • Previous Articles     Next Articles

Surface Properties of Hydrophobic Side by Side Water Strider Legs

TIAN Weijun, ZHANG Xingwang, WANG Jiyue, CONG Qian*()   

  1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
  • Received:2014-04-08 Online:2014-08-10 Published:2019-08-01
  • Contact: CONG Qian E-mail:congqian@jlu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No. 51375205).

Abstract:

Stereoscopic microscope, scanning electron microscope(SEM), Fourier transform infrared spectroscopy(FTIR) and optical contact angle measuring instrument were adopted to study the morphology, structure and composition of water strider’s legs. Optical contact angle measuring instrument and Cassie model were used to study and analyze the wetting properties of side-by-side water strider’s leg surface. The results show that the leg is covered with large numbers of tiny chitinous setae and the surfaces of the setae are marked with helical grooves. The contact angle is (152.9±1.0)°. It indicates that side-by-side legs own the superhydrophobicity, and the Cassie model results indicate that the superhydrophobicity of side-by-side water strider’s leg is induced by the multivariate coupling of organic matter, microstructure, and has no relationship with the arrangement of legs.

Key words: Water strider, Superhydrophobicity, Coupling, Wettability

CLC Number: 

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