活性食品包装用EVA/氧化锌纳米复合材料:选定的物理和微生物特性

IF 1.1 4区工程技术 Q4 POLYMER SCIENCE

Polimery Pub Date : 2023-03-30 DOI:10.14314/polimery.2023.3.1

Haza Satar Majeed, Farah Khalaf Hammoud Al-Juboory, Raghad Hamid, Ruzniza Mohd Zawawi

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引用次数: 0

摘要

采用熔融混合法制备了含1、3、5wt%亲水性氧化锌纳米粒子的乙烯-醋酸乙烯共聚物(EVA)纳米复合材料。考察了复合材料的接触角、阻隔性和抗菌性能。与EVA相比，纳米复合材料的亲水性和阻隔性更好，接触角更小，水蒸气渗透性和吸水性更低，这可以解释为EVA和ZnO之间形成了氢键。此外，该复合材料对大肠杆菌和金黄色葡萄球菌具有较强的杀菌活性。当氧化锌含量为3 wt%时，获得了最佳的物理和微生物性能。

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EVA/zinc oxide nanocomposites for active food packaging: selected physical, and microbial properties

The melt-mixing method was used to obtain nanocomposites of ethylene vinyl acetate copolymer (EVA) with 1, 3 or 5wt% of hydrophilic zinc oxide (ZnO) nanoparticles. The contact angle, barrier and antimicrobial properties of the obtained composites were investigated. The nanocomposites were characterized by better hydrophilic and barrier properties, as evidenced by, respectively, a smaller contact angle and lower water vapor permeability and water absorption compared to EVA, which can be explained by the formation of hydrogen bonds between EVA and ZnO. In addition, the composites were characterized by greater bactericidal activity against E. coli and S. aureus. The optimal physical and microbial properties were obtained with 3 wt% ZnO content.

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来源期刊

Polimery Materials Science-Polymers and Plastics

CiteScore

2.90

自引率

6.20%

发文量

审稿时长

1 months

期刊介绍： The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.