{"title":"柠檬酸交联聚乙烯醇和纳米二氧化硅高阻隔涂层的制备与表征","authors":"Kexin Liu, Shuting Huang, Fang Duan, Jun Wang","doi":"10.1007/s11998-024-00930-7","DOIUrl":null,"url":null,"abstract":"<div><p>Polyvinyl alcohol (PVA) coating has attracted intense attention due to its biodegradability and high gas barrier properties. However, the high gas barrier properties deteriorate at elevated humidity. Herein, we aimed to prepare PVA based coating with high water resistance by incorporating nano-SiO<sub>2</sub> (S) and citric acid (CA), and polyethylene (PE) film was selected as a substrate model. The results showed that the PVA/S/CA coated PE films had better water vapor and oxygen barrier performance than the uncoated PE films. With an optimized mass ratio (PVA/S/CA<sub>10%</sub>), the coated PE films’ water vapor permeability decreased by 46.53% at 90% RH, and the oxygen permeability decreased by four orders of magnitude at 0% relative humidity (RH). Besides, increased surface roughness and a more hydrophobic surface were observed in the coated PE films. Overall, these coated PE films still retained high transparency and were mechanically robust, making them potential candidates for the flexible food packaging field.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1729 - 1743"},"PeriodicalIF":2.3000,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and characterization of high barrier coating of citric acid crosslinked polyvinyl alcohol and nano-SiO2\",\"authors\":\"Kexin Liu, Shuting Huang, Fang Duan, Jun Wang\",\"doi\":\"10.1007/s11998-024-00930-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polyvinyl alcohol (PVA) coating has attracted intense attention due to its biodegradability and high gas barrier properties. However, the high gas barrier properties deteriorate at elevated humidity. Herein, we aimed to prepare PVA based coating with high water resistance by incorporating nano-SiO<sub>2</sub> (S) and citric acid (CA), and polyethylene (PE) film was selected as a substrate model. The results showed that the PVA/S/CA coated PE films had better water vapor and oxygen barrier performance than the uncoated PE films. With an optimized mass ratio (PVA/S/CA<sub>10%</sub>), the coated PE films’ water vapor permeability decreased by 46.53% at 90% RH, and the oxygen permeability decreased by four orders of magnitude at 0% relative humidity (RH). Besides, increased surface roughness and a more hydrophobic surface were observed in the coated PE films. Overall, these coated PE films still retained high transparency and were mechanically robust, making them potential candidates for the flexible food packaging field.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":619,\"journal\":{\"name\":\"Journal of Coatings Technology and Research\",\"volume\":\"21 5\",\"pages\":\"1729 - 1743\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-04-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Coatings Technology and Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11998-024-00930-7\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Coatings Technology and Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11998-024-00930-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Preparation and characterization of high barrier coating of citric acid crosslinked polyvinyl alcohol and nano-SiO2
Polyvinyl alcohol (PVA) coating has attracted intense attention due to its biodegradability and high gas barrier properties. However, the high gas barrier properties deteriorate at elevated humidity. Herein, we aimed to prepare PVA based coating with high water resistance by incorporating nano-SiO2 (S) and citric acid (CA), and polyethylene (PE) film was selected as a substrate model. The results showed that the PVA/S/CA coated PE films had better water vapor and oxygen barrier performance than the uncoated PE films. With an optimized mass ratio (PVA/S/CA10%), the coated PE films’ water vapor permeability decreased by 46.53% at 90% RH, and the oxygen permeability decreased by four orders of magnitude at 0% relative humidity (RH). Besides, increased surface roughness and a more hydrophobic surface were observed in the coated PE films. Overall, these coated PE films still retained high transparency and were mechanically robust, making them potential candidates for the flexible food packaging field.
期刊介绍：
Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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