Abstract Polypropylene (PP) nanocomposites containing cellulose nanomaterials have been studied for the last decade, but are still challenging due to the lack of affinity between PP and cellulose nanofiber (CNF), and the uneven dispersion of CNF in the PP matrix. In order to achieve the uniform dispersion of CNF in the PP matrix and improve affinity between PP and CNF, plasma-treated PP/aCNF nanocomposites were prepared by adding an alkaline CNF (aCNF) suspension to the nitrogen (N2) and oxygen (O2) plasma-treated PP. Based on the results of various analyses, the N2 plasma-treated PP (npPP)/aCNF nanocomposite showed the best performance in tensile and oxygen barrier properties. The npPP/aCNF nanocomposite increased 32.8 and 26.3% in yield stress and Young's modulus, respectively, compared with neat PP, also in O2 permeability, it showed a value of 94.31 cc-mm/m2-day-atm and showed a statistically significant decrease in contrast to neat PP. The npPP/aCNF nanocomposite has a great feasibility to be applied in various barrier packaging applications.

中文翻译：

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用等离子体处理的聚丙烯 (PP) 和碱性纤维素纳米纤维 (CNF) 悬浮液制备亲和力改进的纳米复合材料

摘要 过去十年来，人们一直在研究含有纤维素纳米材料的聚丙烯 (PP) 纳米复合材料，但由于 PP 与纤维素纳米纤维 (CNF) 之间缺乏亲和力，以及 CNF 在 PP 基质中的分散不均匀，因此仍然具有挑战性。为了实现 CNF 在 PP 基质中的均匀分散并提高 PP 和 CNF 之间的亲和力，通过向氮气 (N2) 和氧气 (O2) 中加入碱性 CNF (aCNF) 悬浮液来制备等离子体处理的 PP/aCNF 纳米复合材料等离子处理的PP。根据各种分析的结果，N2 等离子体处理的 PP (npPP)/aCNF 纳米复合材料在拉伸和氧气阻隔性能方面表现出最佳性能。与纯 PP 相比，nppPP/aCNF 纳米复合材料的屈服应力和杨氏模量分别增加了 32.8% 和 26.3%，O2 渗透率也是如此，它显示了 94.31 cc-mm/m2-day-atm 的值，并且与纯 PP 相比显示出统计学上的显着下降。npPP/aCNF 纳米复合材料在各种阻隔包装应用中具有很大的可行性。