Abstract

Modification of the surface of polyvinyl chloride (PVC) deposited on a copper foil under the influence of nanosecond laser radiation with different peaks fluence was studied by using infrared spectroscopy of attenuated total reflection and optical microscopy. The dependences of the wetting angle of the texture surface with water on the peak fluence of laser radiation were measured. The obtained various relief textures demonstrate a sharp drop in water contact angles from (∼50°) to super hydrophilic (∼15°), which allows us to design and fabricate micro-scale elements of laboratory devices for the tasks of bactericidal treatment, collection and removal of liquids, as well as their separation and purification. A stable increase in the contact angles of water with the surface of the textures to hydrophobic (up to ∼140°) observed over time indicates degradation of the polymer coating.

中文翻译：

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纳秒激光微织构技术在聚氯乙烯薄膜表面上制备功能性浮雕

摘要

通过使用衰减全反射的红外光谱和光学显微镜研究了在具有不同峰注量的纳秒激光辐射的影响下沉积在铜箔上的聚氯乙烯（PVC）表面的改性。测量了纹理表面与水的润湿角对激光辐射的峰值通量的依赖性。所获得的各种浮雕质地表现出水接触角从（〜50°）到超亲水性（〜15°）的急剧下降，这使我们能够设计和制造用于消毒，收集任务的实验室设备的微型元件。液体的去除，分离和纯化。