表面微结构设计对材料疏水及防冰性能影响研究
发布时间：2018-08-13 19:49
【摘要】：以硅氧烷为疏水剂,采用浸渍法在具有开放及封闭微结构的金属铝板上制备了超疏水表面,系统考查了表面微结构设计对材料疏水及防冰性能的影响。结果表明,超疏水表面静态接触角随结除冰次数的增加而减少,滚动角随结除冰次数的增加而增大,且在多个结冰除冰循环后,表面开放微结构的金属铝板丧失其超疏水性,表面封闭微结构的金属铝板仍保持其超疏水性。进一步实验研究表明,在多个结冰除冰循环后,在相同结冰条件下,水滴在表面为开放微结构的金属铝板上的结冰时间远长于表面为封闭结构的金属铝板。
[Abstract]:Using siloxane as hydrophobic agent, the superhydrophobic surface of aluminum plate with open and closed microstructures was prepared by impregnation method. The effects of surface microstructure design on hydrophobic and anti-ice properties of the materials were systematically investigated. The results show that the static contact angle of superhydrophobic surface decreases with the increase of deicing times, and the rolling angle increases with the increase of deicing times. The surface closed microstructure of the metal aluminum plate still keeps its hydrophobicity. Further experimental studies show that under the same icing conditions, the freezing time of water droplets on metal aluminum plates with open microstructures is much longer than that on metal aluminum plates with closed surface structure after several deicing cycles.
【作者单位】： 中国民用航空总局第二研究所;四川师范大学化学与材料科学学院;
【基金】：国家自然基金项目(U153310152)
【分类号】：TB306
本文编号：2182000
[Abstract]:Using siloxane as hydrophobic agent, the superhydrophobic surface of aluminum plate with open and closed microstructures was prepared by impregnation method. The effects of surface microstructure design on hydrophobic and anti-ice properties of the materials were systematically investigated. The results show that the static contact angle of superhydrophobic surface decreases with the increase of deicing times, and the rolling angle increases with the increase of deicing times. The surface closed microstructure of the metal aluminum plate still keeps its hydrophobicity. Further experimental studies show that under the same icing conditions, the freezing time of water droplets on metal aluminum plates with open microstructures is much longer than that on metal aluminum plates with closed surface structure after several deicing cycles.
【作者单位】： 中国民用航空总局第二研究所;四川师范大学化学与材料科学学院;
【基金】：国家自然基金项目(U153310152)
【分类号】：TB306
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