为解决高湿度条件下超疏水表面防冰失效问题
提出了一种新型多孔超滑表面。基于自组装技术
提出新型超滑表面(HPO-SLIP)涂层表面制备方法
即通过构建超疏水粗糙多孔基底进而涂覆润滑油制备获得超滑表面
并对其润湿特性和微观形貌进行表征
最后对其防冰与疏冰特性进行实验研究。实验结果表明:与超疏水表面相比
超滑表面冷凝液滴孤立冻结
无"冰桥"扩展
结冰扩散速度慢;超滑表面与冷凝冻结液滴接触属于固-油-固接触模型
油膜动态迁移分布影响成核结冰;对于疏冰特性
超滑表面冰黏附剪切强度比亲水表面低一个数量级。综合分析发现
与亲水表面、超疏水纳米草表面、超疏水微纳复合表面相比
超滑表面具有最优的防冰传播特性与疏冰性能
可以有效减少冰积累量。
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