Durable superhydrophobic paper enabled by surface sizing of starch-based composite films

被引：58

作者：

Chen, Gang ^{[1
]}

Zhu, Penghui ^{[1
]}

Kuang, Yudi ^{[1
]}

Liu, Yu ^{[1
]}

Lin, Donghan ^{[1
]}

Peng, Congxing ^{[1
]}

Wen, Zhicheng ^{[1
]}

Fang, Zhiqiang ^{[1
]}

机构：

[1] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 409卷

基金：

中国博士后科学基金;

关键词：

Surface sizing; Cassava starch; Superhydrophobic paper; Silica nanoparticle; Durability; WATER; ROBUST; TRANSPARENT; COATINGS; SIO2;

D O I：

10.1016/j.apsusc.2017.02.201

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Superhydrophobic paper with remarkable durability is of considerable interest for its practical applications. In this study, a scalable, inexpensive, and universal surface sizing technique was implemented to prepare superhydrophobic paper with enhanced durability. A thin layer of starch-based composite, acting as a bio-binder, was first coated onto the paper surface by a sophisticated manufacturing technique called surface sizing, immediately followed by a spray coating of hexamethyl disilazane treated silica nanoparticles (HMDS-SiNPs) dispersed in ethanol on the surface of the wet starch-coated sheet, and the dual layers dried at the same time. Consequently, durable superhydrophobic paper with bi-layer structure was obtained after air drying. The as-prepared superhydrophobic paper not only exhibited a self-cleaning behavior, but also presented an enhanced durability against scratching, bending/deformation, as well as moisture. The universal surface sizing of starch-based composites may pave the way for the up-scaled and cost-effective production of durable superhydrophobic paper. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：45 / 51

页数：7

共 40 条

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