研究不同间距微坑对铝合金表面湿润性和结冰影响

doi:10.19784/j.cnki.issn1672-0172.2021.99.031

Abstract

Abstract: A simple and low-cost preparation method of 7075 aluminum alloy superhydrophobic surface was studied. Superhydrophobic surfaces were prepared on aluminum alloy by laser marking at laser line spacing of 50 μm, 100 μm, 150 μm and 200 μm.The surface of the pits with 50 μm spacing has excellent anti-ice, self-cleaning and anti-adhesion properties. The wettability and anti-icing performance of aluminum alloy surface were studied by surface contact Angle measuring instrument. Their morphology and chemical structure were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD).The surface contact angles of pits with different spacing (50 μm, 100 μm, 150 μm and 200 μm) are different. When the spacing is 50μm, the contact Angle is 154.1° and the slip Angle is 2.3°. The surface with high adhesion is of great significance for water collection and preservation. It can be seen that the superhydrophobic surface can be prepared by this adhesion force preparation technology, and the superhydrophobic surface has potential application prospects in the fields of fluid transport, pollution prevention, oil prevention, pollution prevention and oil transportation.

Key words: Superhydrophobic surface, Adhesion force, Anti adhesion

CLC Number:

FAN Fengyu, SHI Wen, MENG Yongzhe, WU Zhe. Influence of micro pits with variable spacing on surface wettability and icing[J]. Journal of Appliance Science & Technology, 2021, 0(zk): 128-131.

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Influence of micro pits with variable spacing on surface wettability and icing

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