Effects of Ag ion substitution in zeolite and use of citric acid on the efficacy of antimicrobial properties of EVA-PE composite films

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-12-05 DOI:10.1002/vnl.22184

Sera Im, Jun-Young Lee, Jongchul Seo, Jaewoo Bai, Myeong-Su Jeon, Sea C. Min

{"title":"Effects of Ag ion substitution in zeolite and use of citric acid on the efficacy of antimicrobial properties of EVA-PE composite films","authors":"Sera Im, Jun-Young Lee, Jongchul Seo, Jaewoo Bai, Myeong-Su Jeon, Sea C. Min","doi":"10.1002/vnl.22184","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>Porous zeolites substituted with Ag ions (Ag<sub>[zeolite]</sub>) or citric acid-dealuminated Ag<sub>[zeolite]</sub> (CA-Ag<sub>[zeolite]</sub>) were incorporated into an ethylene–vinyl acetate (EVA) and polyethylene (PE) copolymer using an extrusion process. The antimicrobial effects of the resulting films were evaluated against <i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, and Human coronavirus 229E, and their physical and tensile properties were examined. CA-Ag<sub>[zeolite]</sub> exhibited superior antibacterial results compared to Ag<sub>[zeolite]</sub> for both bacteria, and the CA-Ag<sub>[zeolite]</sub>-EVA-PE film demonstrated higher antimicrobial effects against the tested microorganisms than the Ag<sub>[zeolite]</sub>-EVA-PE film. Surface elemental analysis, determination of the specific surface areas, and pore size investigations demonstrated that CA-Ag<sub>[zeolite]</sub> possessed higher hydrothermal stability than the zeolite or Ag<sub>[zeolite]</sub> alone. Furthermore, the CA-Ag<sub>[zeolite]</sub>-EVA-PE film exhibited a higher <i>L</i>* value and lower <i>a</i>* and <i>b</i>* values than the Ag<sub>[zeolite]</sub>-EVA-PE film along with lower absorbance. The former also demonstrated higher tensile strength and moisture permeability, in addition to lower roughness values on both its cross-section and surface. Moreover, the Ag<sub>[zeolite]</sub>-EVA-PE and CA-Ag<sub>[zeolite]</sub>-EVA-PE films exhibited higher thermal decomposition temperatures than the EVA-PE composite. Overall, the CA-Ag<sub>[zeolite]</sub>-EVA-PE film showed potential for use as a novel antimicrobial film for application in food packaging and kitchen utensil coating materials.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Antimicrobials were prepared with EVA/PE, Ag<sub>[zeolite]</sub>, and citric acid (CA)</li>\n \n <li>EVA/PE films containing Ag<sub>[zeolite]</sub> and CA showed strong antimicrobial effects</li>\n \n <li>CA addition improved Ag<sub>[zeolite]</sub> distribution in the film and the film color</li>\n \n <li>CA addition enhanced the tensile, moisture barrier, and thermal properties</li>\n \n <li>Potential applications include antimicrobial packaging and utensil coatings</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"31 2","pages":"487-501"},"PeriodicalIF":3.8000,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22184","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Porous zeolites substituted with Ag ions (Ag_[zeolite]) or citric acid-dealuminated Ag_[zeolite] (CA-Ag_[zeolite]) were incorporated into an ethylene–vinyl acetate (EVA) and polyethylene (PE) copolymer using an extrusion process. The antimicrobial effects of the resulting films were evaluated against Escherichia coli, Staphylococcus aureus, and Human coronavirus 229E, and their physical and tensile properties were examined. CA-Ag_[zeolite] exhibited superior antibacterial results compared to Ag_[zeolite] for both bacteria, and the CA-Ag_[zeolite]-EVA-PE film demonstrated higher antimicrobial effects against the tested microorganisms than the Ag_[zeolite]-EVA-PE film. Surface elemental analysis, determination of the specific surface areas, and pore size investigations demonstrated that CA-Ag_[zeolite] possessed higher hydrothermal stability than the zeolite or Ag_[zeolite] alone. Furthermore, the CA-Ag_[zeolite]-EVA-PE film exhibited a higher L* value and lower a* and b* values than the Ag_[zeolite]-EVA-PE film along with lower absorbance. The former also demonstrated higher tensile strength and moisture permeability, in addition to lower roughness values on both its cross-section and surface. Moreover, the Ag_[zeolite]-EVA-PE and CA-Ag_[zeolite]-EVA-PE films exhibited higher thermal decomposition temperatures than the EVA-PE composite. Overall, the CA-Ag_[zeolite]-EVA-PE film showed potential for use as a novel antimicrobial film for application in food packaging and kitchen utensil coating materials.

Highlights

Antimicrobials were prepared with EVA/PE, Ag_[zeolite], and citric acid (CA)
EVA/PE films containing Ag_[zeolite] and CA showed strong antimicrobial effects
CA addition improved Ag_[zeolite] distribution in the film and the film color
CA addition enhanced the tensile, moisture barrier, and thermal properties
Potential applications include antimicrobial packaging and utensil coatings

Abstract Image

查看原文本刊更多论文

沸石中Ag离子取代及柠檬酸的使用对EVA-PE复合膜抗菌性能的影响

采用挤压法将多孔沸石与银离子（Ag[沸石]）或柠檬酸脱铝银[沸石]（CA-Ag[沸石]）取代，制成乙烯-醋酸乙烯（EVA）和聚乙烯（PE）共聚物。对制备的膜对大肠杆菌、金黄色葡萄球菌和人冠状病毒229E的抗菌效果进行了评价，并对其物理性能和拉伸性能进行了检测。CA-Ag[沸石]对两种细菌的抑菌效果均优于Ag[沸石]，CA-Ag[沸石]-EVA-PE膜对被测微生物的抑菌效果优于Ag[沸石]-EVA-PE膜。表面元素分析、比表面积测定和孔径研究表明，CA-Ag[沸石]比单独的沸石或Ag[沸石]具有更高的水热稳定性。CA-Ag[沸石]-EVA-PE膜的L*值比Ag[沸石]-EVA-PE膜高，a*和b*值比Ag[沸石]-EVA-PE膜低，吸光度较低。前者还表现出更高的抗拉强度和透湿性，除了其截面和表面的粗糙度值更低。Ag[沸石]-EVA-PE和CA-Ag[沸石]-EVA-PE薄膜的热分解温度高于EVA-PE复合材料。综上所述，CA-Ag[沸石]-EVA-PE膜作为一种新型抗菌膜在食品包装和厨具涂层材料中具有潜在的应用前景。用EVA/PE、Ag[沸石]和柠檬酸（CA）制备了含Ag[沸石]的EVA/PE膜，CA表现出较强的抗菌效果，CA的加入改善了Ag[沸石]在膜中的分布，提高了膜的颜色，增强了膜的抗拉性、防潮性。潜在的应用包括抗菌包装和器皿涂层

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.