Preparation and characterization of N-isopropyl acrylamide grafted polyvinyl alcohol and chitosan blend films with hydrophobic and antibacterial properties
文献类型： 外文期刊
作者： Liu, Fengsong 1 ; Cao, Yifang 1 ; Zhang, Yan 1 ; Xie, Yijia 1 ; Xu, Hao 1 ; Dong, XinYun 1 ; Liu, Yuanyuan 1 ; Wang, Qingyao 1 ; Jiao, Wenjuan 2 ; Alee, Mahafooj 1 ; Xiao, Xinglong 1 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510640, Peoples R China
2.Guangdong Acad Agr Sci, Sericulture & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rural, Guangzhou 510610, Peoples R China
关键词： Hydrophobic modification; Water resistance; Light transmittance; Mechanical properties; Packaging materials
期刊名称：REACTIVE & FUNCTIONAL POLYMERS （ 影响因子：5.1； 五年影响因子：4.3 ）
ISSN： 1381-5148
年卷期： 2023 年 188 卷
页码：
收录情况： SCI
摘要： One of Polyvinyl alcohol (PVA) films' well-recognized weaknesses is moisture sensitivity, which limits their applications. Various techniques have been employed to improve their hydrophobicity, such as blending and hydrophobic coating, but they have shown issues with compatibility and stability. In this study, a new method was proposed to modify PVA by grafting N-isopropyl acrylamide (NIPA) and blending it with chitosan (CS) to enhance its hydrophobic and antibacterial properties. The chemical structure of PVA-NIPA was characterized by FT-IR, 1H NMR, and XRD. By forming chemical bonds between PVA and NIPA through Michael's addition re-action, the moisture sensitivity of the film was significantly reduced. Additionally, the contact angle (CA) increased to 107.85 degrees and the water vapor transmission rate (WVTR) decreased from 17.69 g / (m2 & BULL;h) to 6.53 g / (m2 & BULL;h). The PVA-NIPA/CS film also exhibited excellent mechanical properties, with Young's modulus of 303.67 MPa, tensile strength of 28.86 MPa, and elongation at break of 330.25%. Moreover, it showed better compati-bility, high transparency, good UV-blocking properties, and strong antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), reducing the total colony counts by 2.53 and 3.44 logs, respec-tively. Thus, this work has generated new insights for expanding the application range of PVA films in packaging materials.
- 相关文献
作者其他论文 更多>>
-
Differential selection of yield and quality traits has shaped genomic signatures of cowpea domestication and improvement
作者：Wu, Xinyi;Li, Mao;Dong, Junyang;Wang, Baogen;Wu, Jian;Wu, Xiaohua;Wang, Ying;Wang, Jian;Lu, Zhongfu;Sun, Yuyan;Dong, Wenqi;Li, Guojing;Hu, Zhongyuan;Liao, Nanqiao;Zhang, Mingfang;Zhang, Yan;Yang, Yi;Li, Mao;Dong, Junyang;Wang, Baogen;Wu, Jian;Wu, Xiaohua;Wang, Ying;Wang, Jian;Lu, Zhongfu;Sun, Yuyan;Dong, Wenqi;Li, Guojing;Zhang, Mingfang;Zhang, Mingfang
关键词：
-
A prediction model of rubber content in the dried root of Taraxacum kok-saghyz Rodin based on near-infrared spectroscopy
作者：Chen, Runfeng;Zheng, Lipeng;Chen, Runfeng;Yan, Qingqing;Tuoheti, Tuhanguli;Xu, Lin;Gao, Qiang;Zhang, Yan;Zheng, Lipeng;Yan, Qingqing;Tuoheti, Tuhanguli;Xu, Lin;Gao, Qiang;Zhang, Yan;Ren, Hailong;Wang, Feng;Liu, Ya
关键词：Near-infrared spectroscopy; Taraxacum kok-saghyz; Natural rubber; Rapid detection; PLS; RF; LightGBM; CNN
-
NIR-accelerated cascade reaction for degradation of organophosphorus compounds by Au/PTE/ZIF-8: cooperative effect and mechanism
作者：Wang, Fang;Gao, Renjun;Wang, Fang;Ouyang, Yi;Zhou, Pengfei;Zhang, Yan;Eser, Bekir Engin;Guo, Zheng;Zhou, Pengfei
关键词：
-
A Novel Method for Peanut Seed Plumpness Detection in Soft X-ray Images Based on Level Set and Multi-Threshold OTSU Segmentation
作者：Liu, Yuanyuan;Liu, Yuanyuan;Liu, Yuanyuan;Qiu, Guangjun;Wang, Ning;Qiu, Guangjun
关键词：peanut seed plumpness detection; soft X-ray; segmentation algorithm; image detection; level set
-
Investigating the thermal stability and calcium resistance of O/W emulsions prepared with glycosylated whey protein hydrolysates modified by different saccharides
作者：Shi, Congzhen;Wang, Zhiming;Zhang, Mingwei;Shi, Congzhen;Deng, Yuanyuan;Wang, Zhiming;Zhang, Yan;Tang, Xiaojun;Zhao, Zhihao;Li, Ping;Zhou, Pengfei;Liu, Guang;Zhang, Mingwei
关键词：Whey protein hydrolysate; Different saccharides; Molecular weight; Glycosylation; Thermal stability; Calcium tolerance
-
Prevalence, Time of Infection, and Diversity of Porcine Reproductive and Respiratory Syndrome Virus in China
作者：Li, Chaosi;Fan, Aihua;Huang, Lv;Liu, Zhicheng;Zhang, Jianfeng;Liu, Zhicheng;Wang, Gang;Zhou, Lei;Zhou, Lei;Zhang, Hongliang;Zhang, Zhendong;Zhang, Yan
关键词：PRRSV; prevalence; three-sample strategy; time of infection; wild strain diversity
-
Separation and characterization of the antioxidant active component from Maillard reaction products in xylose-lysine system
作者：Zhang, Luyan;Shi, Guoqing;Zhang, Yinliang;Zhang, Luyan;Zhang, Yan;Zhou, Pengfei;Zhou, Pengfei;Zhang, Yan
关键词：Antioxidant activity; Maillard reaction products; xylose-lysine system; 3-hydroxy-4-methyl-2(5H)-furanone; separation and purification
