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活性阻隔涂层用于包装纸，可控制释放葵花油。

Active Barrier Coating for Packaging Paper with Controlled Release of Sunflower Oils.

机构信息

Analytical and Circular Chemistry, Hasselt University, 3590 Diepenbeek, Belgium.

出版信息

Molecules. 2021 Jun 10;26(12):3561. doi: 10.3390/molecules26123561.

DOI:10.3390/molecules26123561
PMID:34200922
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8230557/
Abstract

The use of paper as a sustainable packaging material is favored, but it lacks sufficient barrier properties in terms of water repellence and oil resistance. Novel approaches consider active packaging materials or coatings with controlled release providing additional functionality for delivery of specific components to the surface. In this study, the development of a waterborne coating with organic nanoparticles and encapsulated sunflower oils is presented as a system for thermal release of the oil and on-demand tuning of the final barrier properties of the paper substrate. After synthesis of the nanoparticles, it seems that the encapsulation of various grades of sunflower oil (i.e., either poly-unsaturated or mono-unsaturated) strongly affects the encapsulation efficiency and thermal release profiles. The water contact angles are controlled by the oil release and chemical surface composition of the coating upon thermal heating. The oil resistance of the paper improves as a more continuous oil film is formed during thermal release. In particular, the chemical surface composition of the paper coatings is detailed by means of micro-Raman spectroscopy and surface imaging, which provide an analytical quantification tool to evaluate surface coverage, oil delivery, and variations in organic coating moieties.

摘要

纸作为一种可持续的包装材料受到青睐，但它在防水和耐油方面缺乏足够的阻隔性能。新方法考虑使用具有控制释放功能的活性包装材料或涂层，为特定成分输送到表面提供额外的功能。在这项研究中，提出了一种带有有机纳米粒子和封装葵花籽油的水性涂层，作为一种用于油的热释放和按需调节纸基最终阻隔性能的系统。在纳米粒子合成之后，似乎各种等级的葵花籽油（即多不饱和或单不饱和）的封装强烈影响封装效率和热释放曲线。水接触角通过热加热时涂层的油释放和化学表面组成来控制。随着热释放过程中形成更连续的油膜，纸张的耐油性得到提高。特别是，通过微拉曼光谱和表面成像详细研究了纸涂层的化学表面组成，这为评估表面覆盖率、油输送和有机涂层部分的变化提供了一种分析定量工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8e9eb93c4362/molecules-26-03561-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/18b7ad9b4fbc/molecules-26-03561-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/6c366d6e29f1/molecules-26-03561-g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/2f9bddb0b033/molecules-26-03561-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/2434430ec1da/molecules-26-03561-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8fc6369e6f56/molecules-26-03561-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/987a81b62a7a/molecules-26-03561-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/f383a86ad30f/molecules-26-03561-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/0e1da5fe3965/molecules-26-03561-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8572626a7f3a/molecules-26-03561-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8e9eb93c4362/molecules-26-03561-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/18b7ad9b4fbc/molecules-26-03561-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/6c366d6e29f1/molecules-26-03561-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/b36c9f49b963/molecules-26-03561-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/62aa79147c8f/molecules-26-03561-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/92531c7ec8e7/molecules-26-03561-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/2f9bddb0b033/molecules-26-03561-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/2434430ec1da/molecules-26-03561-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8fc6369e6f56/molecules-26-03561-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/987a81b62a7a/molecules-26-03561-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/f383a86ad30f/molecules-26-03561-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/0e1da5fe3965/molecules-26-03561-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8572626a7f3a/molecules-26-03561-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f40/8230557/8e9eb93c4362/molecules-26-03561-g013.jpg

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