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A stable porous superhydrophobic high-density polyethylene surface prepared by adding ethanol in humid atmosphere

Authors

  • Zhiqing Yuan,

    Corresponding author
    1. School of Packaging and Materials Engineering, Hunan University of Technology, Hunan Zhuzhou 412008, People's Republic of China
    2. State Key Laboratory of Powder Metallurgy, Central South University, Hunan Changsha 410083, People's Republic of China
    • School of Packaging and Materials Engineering, Hunan University of Technology, Hunan Zhuzhou 412008, People's Republic of China
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  • Hong Chen,

    Corresponding author
    1. Central South University of Forestry and Technology, Hunan Changsha 410004, People's Republic of China
    • Central South University of Forestry and Technology, Hunan Changsha 410004, People's Republic of China
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  • Jianxin Tang,

    1. School of Packaging and Materials Engineering, Hunan University of Technology, Hunan Zhuzhou 412008, People's Republic of China
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  • Dejian Zhao

    1. School of Packaging and Materials Engineering, Hunan University of Technology, Hunan Zhuzhou 412008, People's Republic of China
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Abstract

A stable porous superhydrophobic high-density polyethylene (HDPE) surface with water contact angle of 160.0 ± 1.9° and sliding angle of 2.0 ± 1.6° was obtained by adding ethanol in humid atmosphere at 5°C. Soaked in water with temperatures ranging from 5 to 50°C for 15 days, even suffering compressive forces, and the water contact angles were still higher than 150°. After water flowed through the surface continuously for 30 min, even water droplets with a diameter of 4 mm dropped onto the HDPE surface from 30 cm high for 10 min, the water contact angles were also higher than 150°. A brief explanation to the formation of the porous superhydrophobic HDPE surface was put forward. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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