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首页> 外文期刊>ACS applied materials & interfaces >Robust Guar Gum/Cellulose Nanofibrils Multilayer Films with Good Barrier Properties
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Robust Guar Gum/Cellulose Nanofibrils Multilayer Films with Good Barrier Properties

机译：鲁棒瓜尔胶/纤维素纳米纤维具有良好的阻隔性能的多层膜

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摘要

The pursuit of sustainable functional materials requires development of materials based on renewable resources and efficient fabrication methods. Hereby, we fabricated all -polysaccharides multilayer films using cationic guar gum (CGG) and anionic cellulose nanofibrils (i.e., TEMPO-oxidized cellulose nano-fibrils, TOCNs) through a layer-by-layer casting method. This technique is based on alternate depositions of oppositely charged water-based CGG and TOCNs onto laminated films. The resultant polyelectrolyte multilayer films were transparent, ductile, and strong. More importantly, the self-standing films exhibited excellent gas (water vapor and Oxygen) and oil barrier performances. Another outstanding feature of these resultant flirts was their resistance to various organic solvents including Methanol, acetone, N,N-dimethylacetamide (DMAc) and tetrahydrofuran (THF). The proposed film fabrication process is environmentally benign, cost-effective, and,easy to scale-up. The developed CGG/TOCNs multilayer films can be used as a renewable material for industrial applications such as packaging.
机译：追求可持续的功能材料需要基于可再生资源和高效制备方法的材料开发。因此，我们通过层逐层铸造方法使用阳离子瓜尔胶（CGG）和阴离子纤维素纳米纤维（即，Tempo-氧化纤维素纳米 - 原纤维，Tocns）制造了所有糖类多层膜。该技术基于对层压膜的相反电荷的水基CGG和TOCN的交替沉积。所得聚电解质多层膜是透明的，延展性和强的。更重要的是，自我站立薄膜表现出优异的气体（水蒸气和氧气）和油屏障性能。这些所得调节的另一个突出特征是它们对各种有机溶剂的抵抗力，包括甲醇，丙酮，N，N-二甲基乙酰胺（DMAC）和四氢呋喃（THF）。拟议的薄膜制造过程是环境良性，成本效益，并且易于扩大。开发的CGG / TOCNS多层薄膜可用作可再生材料，用于包装等工业应用。

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