Preparation of robust superhydrophobic surface on PET substrate using Box-Behnken design and facile sanding method with PTFE powder

Author:

Wang Xin,Wang TaoORCID,Sheng Jie,Wang Ziting,Yang Weizhi,Li Meng,Shi LipingORCID

Abstract

Abstract Superhydrophobic surfaces have attracted increasing interests due to their excellent features, while achieving facile preparation of superhydrophobic surface with good mechanical stability is still a challenging work. In this paper, we prepared a superhydrophobic surface by sanding polytetrafluoroethylene powder directly onto the surface of a polyethylene terephthalate (PET) film by means of a simple sanding method with sandpaper. The fabrication parameters were firstly optimized using response surface methodology. Surface morphology and chemical composition of the fabricated surface were characterized by field emission scanning electron microscopy, Fourier transform infrared and x-ray photoelectron spectroscopy. The mechanical performance of the superhydrophobic PET surfaces was evaluated by tape peeling test, and potential applications of this surface in self-cleaning and anti-icing were finally carried out. The results showed that the water contact angle up to 153.5° and sliding angle less than ∼3° on PET surface could be prepared under the optimum conditions, and its superhydrophobicity of surfaces was attributed to the synergistically effect of low surface energy and surface roughness. The fabricated superhydrophobic surfaces also exhibited good resistance to abrasion, and they have great potential for application in the fields of self-cleaning and anti-icing.

Funder

Anhui Provincial Natural Science Foundation

Postgraduate Academic Innovation Project of Anhui Province

Open Project of China International Science and Technology Cooperation Base on Intelligent Equipment Manufacturing in Special Service Environment

Province Engineering Laboratory of Intelligent Demolition Equipment

National Natural Science Foundation of China

Publisher

IOP Publishing

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