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

摘要/Abstract

摘要： 研究一种简单、低成本的7075铝合金超疏水表面制备方法。采用激光打标方法,在激光扫描线间距为50 μm,100 μm,150 μm和200 μm的条件下,在铝合金表面制备了超疏水表面。50 μm间距的微坑表面具有优良的防冰、自清洁和抗黏附性能。利用表面接触角测量仪,研究了铝合金表面的润湿性和防冰性能。通过扫描电子显微镜（SEM）和X射线衍射（XRD）对其形貌和化学结构进行了表征。不同间距微坑（50 μm,100 μm,150 μm和200 μm）,表面接触角不同。在间距为50 μm时,接触角可达154.1°,滑动角为2.3°。因此,50 μm制备表面具有低黏附力,能使水滴在表面进行滑动,达到自清洁行为。可见,通过此黏附力制备技术制备超疏水表面,超疏水表面在流体传输、防污、防油、防污染和油输送等领域具有潜在的应用前景。

关键词: 超疏水表面, 黏附力, 抗黏附

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

中图分类号:

范凤玉, 石文, 孟永哲, 吴哲. 研究不同间距微坑对铝合金表面湿润性和结冰影响[J]. 家电科技, 2021, 0(zk): 128-131.

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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