Tensile Properties of Sago Starch Biocomposites Reinforced with Nanocrystalline Cellulose from Rattan Biomass

1st International Conference on Industrial and Manufacturing Engineering

工业技术（总论）;机械制造

Nasution, H.^1 ; Harahap, H.^1 ; Fath, M.T.A.^1 ; Afandy, Y.^1

Department of Chemical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Padang Bulan, Medan

20155, Indonesia^1

关键词: Bio-composites;    Casting method;    Cellulose content;    Interfacial interaction;    Nanocrystalline cellulose;    Natural wastes;    Sago starch;    Ultra-sonication;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/505/1/012118/pdf
DOI  :  10.1088/1757-899X/505/1/012118

学科分类：工业工程学

来源: IOP

【 摘 要 】

The biomass of rattan is one of natural waste that contains 37.6% of cellulose contents, which is potential to become a source of nanocrystalline cellulose as a filler in biocomposites. There are three important steps to produce alpha cellulose: delignification, alkalization, and bleaching. Nanocrystalline cellulose was extracted through the hydrolysis of alpha cellulose by using sulfuric acid and followed by ultrasonication, centrifugation, and filtration steps. Sago starch biocomposite has been made by casting method. The tensile properties of biocomposite were analyzed and the characterization was done by scanning electron microscopy (SEM). Results have shown that nanocrystalline cellulose has made a strong interfacial interaction with starch that can be improved the tensile strength of biocomposites. SEM have shown smoother and more coherent surface and supported the tensile properties result.