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Preparation and Properties Analysis of Superhydrophobic Paper-based Material
Received:November 23, 2021  
DOI：10.11980/j.issn.0254-508X.2022.05.007
Key Words:paper-based materials  citric acid  cellulose nanofibril/titanium dioxide  AKD  superhydrophobic
Fund Project:浙江省新苗人才计划项目（2020R415019）；衢州市科技计划项目（2021K48）。
Author NameAffiliationPostcode
WU Xiangnan* School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
YANG Jun School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
HAN Yingying School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
MA Chao School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
ZHAO Huifang School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
SHA Lizheng School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
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Abstract:In this study， the original paper was prepared by internal sizing and pretreated with citric acid （CA） to improve its surface activity， then coated by cellulose nanofibril/titanium dioxide （CNF/TiO2） suspension to improve its surface roughness. Finally， the superhydrophobic paper-based material was prepared via impregnated into alkyl ketene dimer （AKD） emulsion to improve its hydrophobicity. The results showed that the surface activity of paper was significantly improved by CA pretreatment， giving a higher TiO2 retention for the paper， and made it easier to achieve the required surface roughness of the superhydrophobic paper-based material. The prepared superhydrophobic paper-based material had a contact angle of 153.8°， which met the requirements of superhydrophobic materials， and also showed good self-cleaning ability.
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