Nanocrystalline cellulose (NCC) has shown great potential for reinforcing nanocomposite systems, particularly in biopolymer-based nanocomposites. In the present work, transparent and biodegradable chitosan (CH)/guar gum (GG)/NCC nanocomposite films were designed and prepared. The effect of NCC loadings on the rheological behavior of the as-prepared nanocomposite suspensions was investigated, the overall properties of the resultant nanocomposite films as a function of various amounts of NCC were determined, and the surface morphology of various nanocomposite films was characterized by scanning electron microscopy (SEM). The results indicated that the increased NCC loadings increased the shear viscosity of the nanocomposite suspensions. Moreover, as expected, the obtained CH/GG/NCC nanocomposite films were found to exhibit improved tensile strength and reduced air permeability in comparison to pure CH/GG films. This work supported the conclusion that NCC was effective in reinforcing the CH/GG composite films, which may be a promising material for food packaging applications.

纳米晶纤维素（NCC）在增强纳米复合材料系统方面表现出巨大潜力，尤其是在基于生物聚合物的纳米复合材料中。在本工作中，设计并制备了透明且可生物降解的壳聚糖（CH）/瓜尔胶（GG）/ NCC纳米复合膜。研究了NCC负载量对制备的纳米复合材料悬浮液的流变行为的影响，确定了所得纳米复合材料薄膜的整体性能随各种NCC的变化，并通过扫描表征了各种纳米复合材料薄膜的表面形态电子显微镜（SEM）。结果表明，增加的NCC负载量增加了纳米复合悬浮液的剪切粘度。而且，正如预期的那样，与纯CH / GG膜相比，发现获得的CH / GG / NCC纳米复合膜表现出改善的拉伸强度和降低的透气性。这项工作支持以下结论：NCC可以有效地增强CH / GG复合膜，这可能是食品包装应用中有希望的材料。