Published in

De Gruyter, Journal of Polymer Engineering, 6(36), p. 635-640, 2015

DOI: 10.1515/polyeng-2015-0319

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Fabrication of a superhydrophobic LLDPE film by thermal lamination and peeling

Journal article published in 2015 by Zhen-Xiu Zhang, Xiao-Pei Zhao, Ya-Nan Li, Zhen-Guo Ma, Zhen Xiang Xin, Prakashan K.
Distributing this paper is prohibited by the publisher
Distributing this paper is prohibited by the publisher

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Abstract

Abstract Fabrication of superhydrophobic films of polypropylene and of three different types of polyethylene was performed using a facile hot-press lamination and peeling process, which successfully fabricated a superhydrophobic film of linear low-density polyethylene (LLDPE). The water contact angle on the superhydrophobic reached as high as 160°, and the roll-off angle decreased to below 7°. The superhydrophobicity of the LLDPE film was attributed to a special surface morphology comprising micron- and submicron-sized fiber-like structures fabricated on the film surface by the hot-press lamination and peeling process. The method is based on the mutual adhesion and interdiffusion of polymer chains at the film interface during hot-press lamination and on the subsequent unzipping of the morphology during the peeling at room temperature. The effects of varying hot-pressing temperature and time on the surface morphology and wetting characteristics of the fabricated LLDPE films were also investigated.