Liu Yang, Zhan Xiaoyang, Wang Yan, Liu Guang, Zhang Deyuan, Zhang Liwen, Chen Huawei
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.
Micromachines (Basel). 2022 Mar 30;13(4):540. doi: 10.3390/mi13040540.
Liquid-Infused Surfaces (LISs), particularly known for their liquid-repelling feature, have demonstrated plenty of applications in the medical, marine, and energy fields. To improve the durability and transparency highly demanded on glass-based vision devices such as an endoscope, this study proposed a novel self-assembly method to fabricate well-ordered porous Poly-Styrene (PS)/Styrene-Butadiene-Styrene (SBS) films by simply dripping the PS/SBS dichloromethane solutions onto the glass before spinning. The effects of the solutions' concentrations and spin speeds on the porous structure were experimentally investigated. The results showed that a certain mass ratio of PS/SBS can make the structure of the ordered porous film more regular and denser under the optimal solution concentration and spin-coating speed. Superior transparency and durability were also realized by dripping silicone oil on the porous film to build a liquid-infused surface. Applications of the as-prepared surface on devices like endoscopes, viewfinders, and goggles have been explored respectively.
液体注入表面（LISs）以其拒液特性而闻名，已在医疗、海洋和能源领域展现出大量应用。为提高对内窥镜等基于玻璃的视觉设备所高度要求的耐久性和透明度，本研究提出一种新颖的自组装方法，通过在旋涂前将聚苯乙烯（PS）/苯乙烯-丁二烯-苯乙烯（SBS）二氯甲烷溶液简单滴涂在玻璃上，来制备有序的多孔聚苯乙烯（PS）/苯乙烯-丁二烯-苯乙烯（SBS）薄膜。通过实验研究了溶液浓度和旋涂速度对多孔结构的影响。结果表明，在最佳溶液浓度和旋涂速度下，一定质量比的PS/SBS可使有序多孔膜的结构更规则、更致密。通过在多孔膜上滴加硅油以构建液体注入表面，还实现了优异的透明度和耐久性。分别探索了所制备表面在内窥镜、取景器和护目镜等设备上的应用。
