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Robust Guar Gum/Cellulose Nanofibrils Multilayer Films with Good Barrier Properties
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-02-02 00:00:00 , DOI: 10.1021/acsami.6b14471 Lei Dai 1 , Zhu Long 2 , Jie Chen 2 , Xingye An 1, 3 , Dong Cheng 1, 3 , Avik Khan 1 , Yonghao Ni 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-02-02 00:00:00 , DOI: 10.1021/acsami.6b14471 Lei Dai 1 , Zhu Long 2 , Jie Chen 2 , Xingye An 1, 3 , Dong Cheng 1, 3 , Avik Khan 1 , Yonghao Ni 1
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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 nanofibrils, 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 films 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.
中文翻译：
健壮的瓜尔胶/纤维素纳米纤维多层膜，具有良好的阻隔性能
对可持续功能材料的追求要求开发基于可再生资源和有效制造方法的材料。因此，我们通过一层层浇铸法，使用阳离子瓜尔胶（CGG）和阴离子纤维素纳米原纤维（即TEMPO氧化纤维素纳米原纤维，TOCN）制备了全多糖多层膜。该技术基于带相反电荷的水基CGG和TOCN在层压膜上的交替沉积。所得的聚电解质多层膜是透明的，可延展的和坚固的。更重要的是，自立膜表现出出色的气体（水蒸气和氧气）和阻油性能。这些所得薄膜的另一个突出特点是它们对各种有机溶剂（包括甲醇，丙酮，N，N-二甲基乙酰胺（DMAc）和四氢呋喃（THF）。所提出的薄膜制造工艺对环境无害，成本效益高且易于扩大规模。所开发的CGG / TOCNs多层薄膜可用作工业应用（例如包装）的可再生材料。
更新日期：2017-02-02
中文翻译：
健壮的瓜尔胶/纤维素纳米纤维多层膜，具有良好的阻隔性能
对可持续功能材料的追求要求开发基于可再生资源和有效制造方法的材料。因此，我们通过一层层浇铸法，使用阳离子瓜尔胶（CGG）和阴离子纤维素纳米原纤维（即TEMPO氧化纤维素纳米原纤维，TOCN）制备了全多糖多层膜。该技术基于带相反电荷的水基CGG和TOCN在层压膜上的交替沉积。所得的聚电解质多层膜是透明的，可延展的和坚固的。更重要的是，自立膜表现出出色的气体（水蒸气和氧气）和阻油性能。这些所得薄膜的另一个突出特点是它们对各种有机溶剂（包括甲醇，丙酮，N，N-二甲基乙酰胺（DMAc）和四氢呋喃（THF）。所提出的薄膜制造工艺对环境无害，成本效益高且易于扩大规模。所开发的CGG / TOCNs多层薄膜可用作工业应用（例如包装）的可再生材料。
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