文献类型：期刊文献

英文题名：Recyclable UV shielding film with water vapor barrier and antimicrobial properties enabled by in situ polymerization of caffeic acid phenethyl ester

作者：Lyu, Yan[1] Li, Jiongjiong[2] Liang, Fangmin[1,3,4,5] Ma, Wencan[1] Liu, Hongxia[6] Huang, Cheng[1] Jiao, Jian[1] Wu, Ting[1] Fang, Guigan[1]

第一作者：Lyu, Yan

通信作者：Fang, GG[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Prov Key Lab Biomass Energy & Mat, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Coll Mat Sci & Engn, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Peoples R China;[3]Shandong Huatai Paper Co Ltd, Dongying 257335, Peoples R China;[4]Shandong Yellow Triangle Biotechnol Ind Res Inst C, Dongying 257335, Peoples R China;[5]Guangxi Univ, Coll Light Ind & Food Engn Guangxi, Key Lab Clean Pulp & Papermaking & Pollut Control, Nanning 530004, Peoples R China;[6]Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China

年份：2024

卷号：498

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20243817053802);Scopus(收录号：2-s2.0-85203817281);WOS:【SCI-EXPANDED(收录号:WOS:001317573500001)】；

基金：The authors are grateful for the financial support from China Postdoctoral Science Foundation (2024M753540, 2023TQ0374), Foundation of the National Key Research and Development Program of China (2023YFD2201902), General Program of National Natural Science Foundation of China (32271974), independent scientific research pro-jects (JSBEM-S-202309) from Jiangsu Province Key Laboratory of Biomass Energy and Materials, and special funds of Taishan Leading Talents Project (tscy20200213).

语种：英文

外文关键词：Biodegradable packaging material; Caffeic acid phenethyl ester; In situ polymerization; Water vapor barrier; Recyclability

摘要：Converting organic solid biomass into biodegradable, recyclable UV shielding film with improved water vapor barrier and antimicrobial properties for packaging is a challenging task that can achieve environmental and energy sustainability. This study presents the construction of a biodegradable packaging material named PVA/pCAPE, inspired by the lignification process in nature. Through the in situ polymerization of caffeic acid phenethyl ester (CAPE) within a poly(vinyl alcohol) (PVA) matrix, the film exhibited exceptional freshness preservation, antimicrobial properties, UV shielding effects, and recyclability. The homogeneously distributed polymerized CAPE (pCAPE) and the dense interfacial bonds significantly enhanced the surface hydrophobicity and reduced the water vapor transmission ratio (WVTR) to only 28.6 % of pure PVA film (18.90 g m(-2)h(-1) vs. 5.42 g m(-2)h(-1)). The PVA/pCAPE films also displayed resistance to Staphylococcus aureus, complete UV light shielding, and maintained high transparency. These films extended the shelf life of strawberries from 2 to 7 days at 40 degrees C and 50 % relative humidity (RH). The multiple intermolecular interactions between pCAPE and the matrix enhanced the strength and toughness even at high RH of 98 %. Furthermore, the films demonstrated recoverability, and the reprocessed films performed a reduced WVTR of 3.13 g m(-2)h(-1), high transparency of over 70 %, and further enhanced mechanical properties. This work provides a facile strategy to produce eco-friendly biodegradable films with exceptional water vapor barrier and mechanical performance for various potential applications.