Chitosan/acrylic rosin-based superhydrophobic coatings inspired by Pickering emulsion template and lotus leaf surface structure for paper-based food packaging
文献类型： 外文期刊
第一作者： Lu, Manzhi
作者： Lu, Manzhi;Lu, Pan;Liu, Song;Peng, Yingying;Chu, Zhuangzhuang;Hong, Ziyin;Yang, Zhuohong;Hu, Yang;Lu, Manzhi;Hu, Yang;Yang, Ziming
作者机构：
关键词： Coated paper; Chitosan; Lotus leaf surface structure; Pickering emulsion; Water and oil resistance; Food packaging application
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2025 年 308 卷
页码：
收录情况： SCI
摘要： The superhydrophobic coated papers have attracted much attention as the promising alternatives for disposable plastic packaging materials in food packaging fields. Despite recent visible progress in constructing super- hydrophobic coated papers, it is still a challenge to realize superhydrophobicity, high oil-resistant behavior, biodegradability and recyclability at the same time in a coated paper. Herein, we have effectively constructed the superhydrophobic coated (PE&SP-CP) paper with the imitated lotus leaf surface structures by firstly dip-coating cellulose nanocrystals stabilized Pickering emulsion containing chitosan in water phase and acrylic rosin (AAR) in oil phase, and then spraying ethanol suspension of hydrophobic nano-silica (hSiO2) and polydimethylsiloxane (PDMS). In this aspect, the micro-nano hierarchical surface of chitosan-based coating film consists of AAR microcapsules and hSiO2 nanoparticles, as well as covered a hydrophobic PDMS polymer layer. And the prepared PE&SP-CP paper with surface superhydrophobicity demonstrates the highly water barrier performance with the water contact angle of 155.8 degrees and water vapor permeability rate of 1.42 x 10-10 gm- 1s- 1Pa- 1, the favorable oil repellency with the kit rating of 9/12, the clearly improved tensile strengths of 21.67 MPa. Interestingly, the PE&SP-CP paper also shows superior antifouling performance, self-cleaning ability, biodegradability of soil burial and recyclability. This work provides a universal approach for the effective construction of oil-resistant, self-cleaning, antifouling, recyclable, biodegradable superhydrophobic coated paper with the imitated lotus leaf surface structure, which has great potential application in the food packaging industry.
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