The Effect of Rice Husk and Saw Dusk Filler on Mechanical Property of Bio Composite from Sago Starch

Rozanna Dewi, Novi Sylvia, M Riza


Some materials derived from plants can be used as a source of biodegradable thermoplastic materials such as rice, potatoes, corn, sweet potatoes, sago, etc. In this research, thermoplastic sago starch (TPS) with a mixture of two types of fillers was synthesized to become environmentally friendly composites that can be naturally degraded in a relatively short time compared to other conventional plastics which decompose in decades, hence can contribute to environmental conservation efforts. Increasing the strength of bio composite through the presence of fillers will expand its application such as for household application. Sago is available in large quantities in Indonesia and needs to be utilized optimally to increase its added value. TPS is synthesized using sorbitol as a plasticizer so that it becomes a starch paste. Composites are moulded by means of compression moulding using TPS and cellulose as a filler and Polypropylene (PP). The fillers used were sawdust and rice husk with several variations to obtain optimal combination, to improve the mechanical performance of the composites. For rice husk fibre, the highest tensile strength value 13.82 MPa, found at 40% fibre with ratio of TPS: PP 1: 0.5, and the highest elongation value was 16.47% at 40% fibre at ratio of TPS : PP 1: 0.5. For Sawdust fibre, the highest tensile strength value 11.08 MPa, obtained at 20% fibre at ratio of TPS : PP 1 : 1, and the highest elongation value was 18.57% at  20% fibre with ratio of  TPS : PP 1 : 1. Type of filler has different effect on the tensile strength and elongation of the bio composite,


Thermoplastic sago starch (TPS), cellulose, bio-composites, filler, mechanical properties

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S. Kumari and A. Harikrishnan, “Importance of Financial literacy For Sustainable Future Environment: A Research Among People In Rural Areas With Special Reference To Mandi District,Himachal Pradesh,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 1, 2021, doi: 10.52088/ijesty.v1i1.36.

M. Mahfut, M. V. Treesya Panjaitan, S. Wahyuningsih, T. Tripeni Handayani, and S. Sukimin, “Identification of Disease and Efforts to Protect Natural Orchid Plants Against Fungi Infection in the Liwa Botanical Garden,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 1, 2021, doi: 10.52088/ijesty.v1i1.39.

C. E. Lane, I. Ahmad, I. Abdullah, and D. H. Mohd, “Effects of Rice husk modification with liquid natural rubber and exposure to electron beam radiation on the mechanical properties of NR/HDPE/Rice husk composites),” Sains Malaysiana, 2011.

Z. QX, Y. ZZ, X. XL, N. K, and K. Y, “Preparation and Crystalline Morphology of biodegradable starch/clay nanocomposites,” Polym. 48(24), pp. 7193–7200, 2007.

W. Pudjiastuti, A. Listyarini, and Sudirman, “Polimer Nanokomposit Sebagai Master Batch Polimer,” Ris. Ind., vol. VI, no. 1, pp. 51–60, 2012.

S. Romadhona, F. Kurniawan, and J. Tistogondo, “Project Scheduling Analysis Using the Precedence Diagram Method (PDM) Case Study: Surabaya’s City Outer East Ring Road Construction Project (Segment 1),” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 2, 2021, doi: 10.52088/ijesty.v1i2.56.

X. K. and S. S. N. Ferrer M, “Physical properties of polyurethane plastic sheets produced from Poliol from Canola oil,” Biomacro, pp. 2203–220, 8, 2007.

R. Rinaldy and M. Ikhsan, “Determinant Analysis Of Conflict On Project Results In Aceh Province,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 1, 2021, doi: 10.52088/ijesty.v1i1.37.

L. Dagang, T. Huafeng, Z. Lina, and C. P. R, “Structure and properties of blendfilms prepared from castor oli-based polyurethane/soy protein derivative,” J. Mater. Andin. Ind. Eng. Chem. Res., pp. 9330–9336, 2008.

D. Kumar, “Power System Restoration Using Multilayer Perceptron,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 1, 2021, doi: 10.52088/ijesty.v1i1.35.

L. Yoshang, T. Lan, B. Francoise, and S. Rondot, “Innovative plasticized starch films modified waterborne polyurethane from renewable resources,” Carbohydr. Polym., pp. 61, 174 – 182, 2005.

M. F. Firmansyah and H. Z. Maulana, “Empirical Study of E-Learning on Financial Literacy and Lifestyle : A Millenial Urban Generations Cased Study,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 3, pp. 75–81, 2021.

R. Dewi, H. Agusnar, B. Wirjosentono, and M. Riza, “Synthesis of modified thermoplastic starch (TPS) using in-situ technique,” Adv. Environ. Biol., vol. 8, no. 18, pp. 26–33, 2014.

H. Abral et al., “Characterization of Tapioca Starch Biopolymer Composites Reinforced with Micro Scale Water Hyacinth Fibers,” Starch, WILEY-VCH Verlag GmbH Co. KGaA, Weinheim, 2018.

J. S Pasaribu, “Development of a Web Based Inventory Information System,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 2, 2021, doi: 10.52088/ijesty.v1i2.51.

R. Punyamurthy, D. lakshmi S. Kumar, R. P. G, Ranganagowda, B. Bennehalli, and C. V. Srinivasa, “Mechanical properties of abaca fiber reinforced polypropylene composites: Effect of chemical treatment by benzenediazonium chloride,” J. King Saud Univ. – Eng. Sci., 2015.

Paryanto, “Potensi Pemanfaatan Limbah Kayu sebagai Bahan Baku Papan Partikel,” Tersedia http// 15 Januari 2012.



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