Acetylated‐cellulose nanostructures (CNS) were used as reinforcing agent to develop poly(butylene adipate‐co‐terephthalate)—PBAT—nanocomposites with 1, 3, 5, and 10 wt% of modified and nonmodified nanoparticles through solvent casting. This study explains the interactions between the reactive groups CNS and PBAT interact and the influence of this interaction in the mechanical and thermal properties of the composites. The nonmodified CNS showed a noncontinuous increase in the PBAT stiffness, due to the low interaction between the reinforcement and the matrix and low CNS dispersion. The best results were obtained to acetylated CNS due to the intermolecular interactions between the acetyl groups and the polymer chains. Probably the acetyl groups interfered in the atomic vibration relative to the functional groups of the matrix, which is indicative of the interaction and enhancement of the internal cohesion of the components.

中文翻译：

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乙酰化纤维素纳米结构作为PBAT纳米复合材料的增强材料

乙酰化纤维素纳米结构（CNS）被用作增强剂，通过溶剂浇铸开发了具有1,3％，5％和10％重量百分比的改性和非改性纳米粒子的聚（己二酸丁二酯-对苯二甲酸对苯二甲酸丁二酯）PBAT纳米复合材料。这项研究解释了反应性基团CNS和PBAT相互作用之间的相互作用以及这种相互作用对复合材料的机械和热性能的影响。由于增强材料与基体之间的相互作用少以及CNS分散度低，未改性的CNS的PBAT刚度显示出不连续的增加。由于乙酰基和聚合物链之间的分子间相互作用，乙酰化的CNS获得了最佳结果。相对于基质的官能团，乙酰基可能会干扰原子振动，