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本论文报道了一种通过液体石蜡溶胀聚二甲基硅氧烷制备持久耐用的油凝胶除冰涂层的方法.由于油凝胶表面被一层渗透压驱动的石蜡缓释层覆盖,这层缓释层可作为润滑层,大大降低油凝胶表面的冰粘附强度.实验结果显示,油凝胶表面是一种具有超低冰粘附的防结冰材料,在-30°C测试温度条件下的冰粘附强度是1.7±1.2 k Pa,且温度降低到-70°C时,其冰粘附强度不高于10 k Pa.在连续100天的使用期间,经过35次的结冰/除冰循环操作,具有润滑层的油凝胶表面仍然保持了持久的低粘附特性.较低的冰粘附和较宽的低温适用窗口,以及持久的耐用性,使其在依靠重力或风力的低粘附被动除冰领域具有很大的潜力和实际应用价值.
In this paper, a method for the preparation of a long-lasting oil-gel de-icing coating by liquid paraffin-swollen polydimethylsiloxane is described. Since the surface of the oil gel is covered by a layer of osmotic pressure-activated paraffin sustained release coating, The layer of sustained release layer can be used as a lubricating layer, greatly reducing the ice adhesion strength of the surface of the oil gel.The experimental results show that the surface of the oil gel is an anti-icing material with ultra-low ice adhesion, tested at -30 ° C The ice adhesion strength at temperature is 1.7 ± 1.2 kPa and its ice adhesion strength is not higher than 10 kPa when the temperature is lowered to -70 ° C. After 35 consecutive knots during 100 days of use Ice / de-icing cycles, the oily gel surface with the lubricating layer retains long-lasting, low adhesion characteristics, lower ice adhesion and wider low temperature application window, and long lasting durability, Or wind low adhesion passive deicing field has great potential and practical value.