Antireflection and antiwetting functionalities of plasma‐nanotextured polymer surfaces with biomimetic nanopillars,Plasma Processes and Polymers

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Antireflection and antiwetting functionalities of plasma‐nanotextured polymer surfaces with biomimetic nanopillars
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2020-06-23 , DOI: 10.1002/ppap.202000050
Xiaoyu Li ₁ , Yupeng Li ₁ , Iqbal Muzammil ₁ , Mingkai Lei ₁

Affiliation

Inspired by the antireflection and antiwetting functionalities of dragonfly wings decorated with random nanopillars and a wax layer, a facile technique to endow the same functionalities has been devised. In this two‐step plasma nanotexturing technique, first oxygen plasma treatment is implemented to grow the random nanopillars on the polymethyl methacrylate (PMMA) surfaces, and then C₄F₈ plasma polymer deposition is carried out so that the thin fluorocarbon film with a low surface free energy and refraction index covers the random nanopillars. The biomimetic PMMA surfaces exhibit excellent broadband and omnidirectional antireflection properties and robust antiwetting properties under the water droplet impact. The superhydrophobicity at the slippery Cassie state was maintained under the natural oscillation of residual droplets.

中文翻译：

具有仿生纳米柱的等离子体纳米结构化聚合物表面的抗反射和抗湿功能

受装饰有随机纳米柱和蜡层的蜻蜓翅膀的抗反射和抗湿功能的启发，已设计出一种赋予相同功能的简便技术。在此两步式等离子体纳米纹理化技术中，首先进行氧等离子体处理，以在聚甲基丙烯酸甲酯（PMMA）表面上生长无规纳米柱，然后进行C ₄ F ₈进行等离子体聚合物沉积，以使具有低表面自由能和折射率的碳氟化合物薄膜覆盖无规纳米柱。仿生PMMA表面在水滴撞击下具有出色的宽带和全向抗反射性能，以及强大的抗湿性能。在残留液滴的自然振荡下，在滑卡西状态下保持了超疏水性。

更新日期：2020-06-23

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