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首页> 外文期刊>Applied Surface Science >Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding
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Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

机译：通过压缩成型在超疏水硅橡胶表面的制造中直接复制微纳米结构

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摘要

We describe a simple method for fabricating superhydrophobic high temperature vulcanized (HTV) silicone rubber surfaces by direct replication using a compression molding system. The resulting rubber samples possessed micro-nanostructures on the surface. This micro- and nano-scale roughness produced a water contact angle of 160 degrees and a contact angle hysteresis of 3 degrees. The roughness patterns on chemically etched aluminum surfaces, which served as templates, were successfully replicated on the rubber surfaces. An antistiction coating applied to the template surface ensured that the rubber was completely removed during demolding and that the replicated micro-nanostructures on the silicone surface were preserved. Surface roughness of the aluminum templates was optimized at HCl concentrations of 15wt.%, with a lower roughness value observed at acid concentrations above and below this value. The developed HTV silicone rubber surfaces also demonstrated a freezing delay and a self-cleaning capacity.
机译：我们描述了一种通过直接复制使用压模系统制造超疏水高温硫化（HTV）硅橡胶表面的简单方法。所得的橡胶样品在表面上具有微纳米结构。这种微米级和纳米级粗糙度产生的水接触角> 160度，接触角滞后<3度。作为模板的化学蚀刻铝表面上的粗糙度图案已成功复制到橡胶表面上。涂在模板表面的抗粘涂层可确保在脱模过程中将橡胶完全去除，并确保保留了硅酮表面上复制的微纳米结构。铝模板的表面粗糙度在HCl浓度为15wt。％时进行了优化，在酸浓度高于和低于此值时观察到的粗糙度较低。发达的HTV硅橡胶表面还显示出冻结延迟和自清洁能力。

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