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The synthesis of Cellulose nanofibers from Sesbania Javanica for filler in Thermoplastic starch

机译：来自Sesbania Javanica的纤维素纳米纤维在热塑性淀粉中填料的合成

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This research was aimed to study the synthesis of cellulose nanofibers from Sesbania Javanica and the effect of the cellulose nanofiber (CNF) addition on thermoplastic starch derived from tapioca flour. The mechanical properties, morphological structure and thermal stability of neat thermoplastic starch and their composites were investigated by Tensile testing, Scanning Electron Microscope (SEM) and Thermogravimetric analysis (TGA), respectively. Moreover moisture absorption was also studied. The composites with 0, 1, 2 and 3 phr of cellulose nanofibers content were prepared. Cellulose nanofibers were synthesized in the aqueous suspension (containing 8.63% of dried cellulose nanofibers). The percentage yield was found of 14.8% and the average diameter is about 100 nm. The addition of cellulose nanofibers in thermoplastic starch showed that the modulus of the composites tended to improve, however, the tensile strength did not change significantly and tended to decrease when higher cellulose nanofibers content. SEM revealed the formation of CNF aggregates in the composites, especially the content of 3.0 phr of CNF, that is why no improvement in the tensile strength of the composites. Also, the moisture absorption of the TPS/CNF composite improved with the cellulose nanofibers content.
机译：本研究旨在研究来自索斯巴尼亚爪子的纤维素纳米纤维的合成及纤维素纳米纤维（CNF）添加到衍生自烟草粉的热塑性淀粉的作用。通过拉伸试验，扫描电子显微镜（SEM）和热重分析（TGA）研究了整齐热塑性淀粉及其复合材料的机械性能，形态学结构和热稳定性。还研究了水分吸收。制备具有0,1,2和3phr的纤维素纳米纤维含量的复合材料。在水性悬浮液中合成纤维素纳米纤维（含有8.63％的干燥的纤维素纳米纤维）。百分比产量为14.8％，平均直径约为100nm。热塑性淀粉中的纤维素纳米纤维的添加表明，复合材料的模量倾向于改善，然而，拉伸强度在更高的纤维素纳米纤维含量含量时不显着变化并降低。 SEM揭示了复合材料中CNF聚集体的形成，尤其是3.0phr的CNF的含量，这是为什么没有改善复合材料的拉伸强度。而且，随着纤维素纳米纤维含量的改善了TPS / CNF复合材料的吸湿性。

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