The use of nanomaterials and polymers from renewable resources is important in the search for sustainable alternatives to plastic-based packaging materials and films. In this work, self-supporting thin films prepared from derivatized and non-derivatized nanocellulose and cellulose derivatives were studied. The effect of drying temperature on the film-forming behavior of compositions comprising hydrophobically modified ethyl(hydroxyethyl)cellulose (EHEC), native microfibrillated cellulose (MFC) and nanocellulose made from methyl cellulose was determined. The interaction between the components was assessed from viscosity measurements made at different temperatures, the result being linked to a thermal-dependent association during liquid evaporation, and the subsequent barrier and film-forming properties. The effect of temperature on suspensions was clearly different between the materials, confirming that there were differences in interaction and association between EHEC–MFC and methyl nanocellulose–MFC compositions. The amphiphilic EHEC affected both the suspension homogeneity and the film properties. Air bubbles were formed under certain conditions and composition particularly in MFC films, dependent on the drying procedure. The presence of air bubbles did not affect the oxygen transmission rate or the oil and grease resistance. An increasing amount of MFC improved the oxygen barrier properties of the films.

从可再生资源中使用纳米材料和聚合物对于寻找塑料包装材料和薄膜的可持续替代品至关重要。在这项工作中，研究了由衍生化和非衍生化的纳米纤维素和纤维素衍生物制备的自支撑薄膜。确定了干燥温度对包含疏水改性的乙基（羟乙基）纤维素（EHEC），天然微纤化纤维素（MFC）和由甲基纤维素制成的纳米纤维素的组合物的成膜行为的影响。通过在不同温度下进行的粘度测量来评估组分之间的相互作用，其结果与液体蒸发过程中与热相关的缔合以及随后的阻隔和成膜性能有关。温度对悬浮液的影响在两种材料之间明显不同，这证实了EHEC – MFC和甲基纳米纤维素– MFC组合物之间的相互作用和缔合存在差异。两亲性EHEC影响悬浮液的均质性和薄膜性能。取决于干燥程序，在某些条件和组成下，特别是在MFC膜中，会形成气泡。气泡的存在不影响氧气的透过率或耐油脂性。越来越多的MFC改善了膜的氧气阻隔性能。两亲性EHEC影响悬浮液的均质性和薄膜性能。取决于干燥程序，在某些条件和组成下，特别是在MFC膜中，会形成气泡。气泡的存在不影响氧气的透过率或耐油脂性。越来越多的MFC改善了膜的氧气阻隔性能。两亲性EHEC影响悬浮液的均质性和薄膜性能。取决于干燥程序，在某些条件和组成下，特别是在MFC膜中，会形成气泡。气泡的存在不影响氧气的透过率或耐油脂性。越来越多的MFC改善了膜的氧气阻隔性能。