High Strength Hemicellulose-Based Nanocomposite Film for Food Packaging Applications
High Strength Hemicellulose-Based Nanocomposite Film for Food Packaging Applications
复制标题
用于食品包装应用的高强度半纤维素纳米复合薄膜
DOI：
10.1021/acssuschemeng.5b01252
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发表时间：
2016-04-01
影响因子：
8.4
通讯作者：
Sun, Run-Cang
中科院分区：
文献类型：
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作者：
Chen, Ge-Gu;Qi, Xian-Ming;Sun, Run-Cang
半纤维素是一种含量丰富的天然多糖，由于其生物相容性和生物降解性，在生物材料方面具有巨大的应用价值和潜力。但它们的难治性(吸湿性和较差的机械性能)大大限制了它们在包装中的应用。在本工作中，成功地制备了季节化半纤维素(QH)，以提高半纤维素的价值。本工作的目的是将不同比例的阳离子生物聚合物壳聚糖(CS)和QH插层到蒙脱土(MMT)中，得到致密而坚固的具有珍珠层结构和多功能特征的纳米复合膜。这项研究揭示了结构(多层结构)与性能(拉伸强度和热性能)之间的关系。QH-MMT-CS薄膜(F0.05和F0.08)的拉伸强度分别为52.7和57.8 Mpa，表明CS的加入对薄膜的力学性能有一定的贡献。
Hemicelluloses are abundant natural polysaccharides with huge availability and potential for biomaterials due to their biocompatibility and biodegradability. But their utilization in packaging is greatly limited by their intractability (hygroscopic and poor mechanical properties). In this work, the quaternized hemicelluloses (QH) were successfully prepared to increase the value of hemicelluloses. The objective of this work was the intercalation of different ratios of cationic biopolymer chitosan (CS) and QH in montmorillonite (MMT), providing compact and robust nanocomposite films with nacre-like structure and multifunctional characteristics. This study revealed some details in the relationships between structure (multilayered structure) and properties (tensile strength and thermal property). It was also found that the tensile strengths of films QH-MMT-CS (F0.05 and F0.08) were 52.7 and 57.8 MPa, respectively, which suggested that the addition of CS was supposed to contribute to mechanical properties due ...