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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

作者: Lu, Manzhi 1 ; Lu, Pan 1 ; Liu, Song 1 ; Peng, Yingying 1 ; Yang, Ziming 3 ; Chu, Zhuangzhuang 1 ; Hong, Ziyin 1 ; Yang, Zhuohong 1 ; Hu, Yang 1 ;

作者机构: 1.South China Agr Univ, Coll Mat & Energy, Key Lab Biobased Mat & Energy, Minist Educ, Guangzhou 510642, Peoples R China

2.South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China

3.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Fruit Biol, Minist Agr & Rural Affairs, Zhanjiang 524091, Peoples R China

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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