Abstract In this study, the effects of cellulose nanocrystals modified with octadecyl isocyanate on rheological, mechanical and degradation properties of nanocomposites based on poly (butylene adipate-co-terephthalate) (PBAT) were reported. Nanocomposites were prepared by melt mixing procedure of PBAT with 3, 5 and 7 wt% cellulose nanocrystals. The increase of PBAT-based nanocomposites mechanical strength was discussed as a function of the cellulose nanocrystals surface chemistry, and the optimal amount of nanofillers in the nanocomposites, whereas the biodegradation rate of the polymer was related to the cellulose nanocrystals hydrophobicity. The study here presented promotes further understanding of cellulose nanocrystals functionalization and its effect on the overall properties of polymeric nanocomposites.

中文翻译：

---

由功能化纤维素纳米晶体增强的 PBAT 纳米复合材料的机械、流变和降解性能

摘要 在这项研究中，报告了用异氰酸十八烷基酯改性的纤维素纳米晶体对基于聚己二酸丁二酯-共聚对苯二甲酸酯 (PBAT) 的纳米复合材料的流变学、机械和降解性能的影响。纳米复合材料是通过 PBAT 与 3、5 和 7 wt% 纤维素纳米晶体的熔融混合程序制备的。基于 PBAT 的纳米复合材料机械强度的增加被讨论为纤维素纳米晶体表面化学和纳米复合材料中纳米填料的最佳量的函数，而聚合物的生物降解速率与纤维素纳米晶体的疏水性有关。这里介绍的研究促进了对纤维素纳米晶体功能化及其对聚合物纳米复合材料整体性能的影响的进一步理解。