开关面板微纳结构的激光制备及超疏水性研究

为了解决厨房用开关面板抗油污沉积的问题, 采用飞秒激光在开关面板表面制备出微纳米复合结构表面, 实现了超疏水性, 进而减少油污沉积附着, 研究了聚碳酸酯(PC)开关面板的激光烧蚀阈值、不同激光工艺参数和微纳结构对表面浸润性的影响。结果表明, PC开关面板在515nm波段下的烧蚀阈值为1.66μJ; 当激光能量为1.6μJ、扫描速率为200mm/s、搭接率为1/3线宽时, 其表面液滴接触角为161°, 表现出超疏水特性。经激光表面处理后的PC面板具有超疏水性, 可实现表面的自清洁作用, 显示出巨大的市场潜力。

Laser direct fabrication of micro/nano structure on switch panel and its superhydrophobic performance

To solve the anti-oil deposition problem of switch panel, femtosecond laser was used to prepare micro/nano composite surface of the switch panel. And superhydrophobicity can be achieved, and then the adhesion of oil deposition can be reduced. In this paper, the laser ablation threshold, micro-nano structure design, and the influence of different laser process parameters and micro-nano structure on the surface wettability of polycarbonate (PC) switch panel were studied. The experimental results show that the ablation threshold of PC switch panel is 1.66μJ at 515nm. When the laser energy is 1.6μJ, the scanning speed is 200mm/s, and the overlapping ratio is 1/3 of the line width, the droplet contact angle is 161°, the superhydrophobicity is observed. PC panel with superhydro-phobicity can achieve surface self-cleaning effect, showing a huge market potential.