主管单位:中华人民共和国工业和信息化部
主办单位:西北工业大学  中国航空学会
地       址:西北工业大学友谊校区航空楼
基于疏水SiO2粒子的速干超疏水涂层制备及防结冰性能研究
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作者单位:

1.航空工业哈尔滨飞机工业集团有限责任公司;2.南京航空航天大学

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中图分类号:

V255+.5

基金项目:

直升机动力学全国重点实验室基金项目


Preparation of quick-drying superhydrophobic coating based on hydrophobic SiO2 particles and study of anti-icing performance
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Affiliation:

AVIC Harbin Aircraft Industry Group CO,LTD,.

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    摘要:

    超疏水涂层因其独特的性能在飞机防结冰领域具有极好的应用前景。本文旨在开发一种具有良好耐蚀性能及防除冰性能的超疏水涂层。使用正硅酸乙酯制备亲水纳米二氧化硅粒子,并通过聚三氟丙基甲基硅氧烷对其进行疏水化改性。随后,将疏水纳米粒子与氟硅树脂结合,制备了水接触角为158.6°的超疏水涂层,该涂层不仅对不同液体均表现出良好的疏液性。经过砂纸磨损测试,经过50个周期的磨损后,其水接触角仍保持在148.5°。且涂层展现出良好的延迟结冰性能和除冰性能。在-10℃和-15℃的低温条件下,水滴在涂层表面的冻结时间分别被延长了205%和800%。与未涂覆涂层的马口铁片相比,涂覆了该涂层的冰层附着力降低了91.8%。

    Abstract:

    Superhydrophobic coatings have excellent application prospects in the field of aircraft anti-icing due to their unique properties. The aim of this paper is to develop a superhydrophobic coating with good corrosion resistance and anti-deicing properties. Hydrophilic silica nanoparticles were prepared using ethyl orthosilicate and hydrophobically modified by poly(trifluoropropylmethylsiloxane). Subsequently, the hydrophobic nanoparticles were combined with fluorosilicone resin to prepare a superhydrophobic coating with a water contact angle of 158.6°, also showed good hydrophobicity for different liquids. After the sandpaper abrasion test, the water contact angle remained at 148.5° after 50 cycles of abrasion. The coating also shows excellent delayed icing and de-icing properties. At low temperatures of ?10°C and ?15°C, the freezing time of water droplets on the coated surface was extended by 205% and 800%, respectively. The ice adhesion of the coated tinplate sheet was reduced by 91.8% compared to the uncoated sheet.

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历史
  • 收稿日期:2024-08-26
  • 最后修改日期:2025-01-03
  • 录用日期:2025-01-09
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