Mechanical Characteristic and Water Absorption Property of Bio Composite from Sago Starch and Jute Fiber (Boehmeria Nivea) as the filler

Rozanna Dewi, Oktaviani Oktaviani, Zainuddin Ginting, Novi Sylvia, Cindia Ramadhan


Environmentally friendly plastics can be degraded biologically in an anaerobic environment. This plastic is synthesized from starch such as sago starch which is available in abundance. In the form of bioplastics, its mechanical properties are still not compared to conventional plastics derived from crude oil, so its application is limited. The incorporation of filler material increases its mechanical properties, one of the selected fillers is hemp fiber as used in this study. Thermoplastic starch from sago with flax fiber as a filler and the addition of Polypropylene to improve mechanical properties with a certain composition to maintain its natural biodegradability. The mechanical properties analyzed were tensile strength, elongation and modulus of elasticity. Water absorption tests were also carried out to observe the water resistance properties. The results of the tensile strength test showed that the best tensile strength value of 9.32 Mpa was obtained at the addition of 35% fiber with a TPS: PP ratio of 1:1.5. The same conditions were obtained for the percent elongation with the results of 10.16% and the modulus of elasticity was 91.73 Mpa. Water absorption showed that 55% filler gave the lowest water     absorption, namely 4.41% at a ratio of TPS: PP 1:0.5. The addition of fiber filler into the bio-composite affects the tensile strength,    elongation and modulus of elasticity, the higher the volume of filler entering the bio-composite, the lower the value of tensile strength, elongation and modulus of elasticity, or vice versa. The ratio of addition of polypropylene matrix is also influential, the higher the ratio contributes to the tensile strength, elongation and higher modulus of elasticity. High water absorption capacity will reduce the performance of biocomposite, so the lower the water absorption ability, the better the quality of the biocomposite product and the wider its application


Bio Composite, Jute Filler, Tensile Strength, Modulus Elasticity, Water Absorbency

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D. R. Paul and L. M. Robeson, “Polymer nanotechnology: Nanocomposites,” Polymer (Guildf)., vol. 49, no. 15, pp. 3187–3204, 2008, doi: 10.1016/j.polymer.2008.04.017.

N. Sylvia, Y. Yunardi, H. Husni, and A. Muslim, “Simulation of CO2 Gas Adsorption Process Flow at Cyclone Gas Outlet in Palm Oil Mills Using Computation Fluid Dynamic Simulation,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 3, 2021, doi: 10.52088/ijesty.v1i3.112.

R. Dewi, N. Sylvia, and M. Riza, “The Effect of Rice Husk and Saw Dusk Filler on Mechanical Property of Bio Composite from Sago Starch,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 3, 2021, doi: 10.52088/ijesty.v1i3.113.

S. Silviana and A. Subagio, “Biocomposite characterization of bagasse starch derived from cassava reinforced by acetylated bamboo cellulose and plasticized by epoxidized waste cooking oil,” Rasayan J. Chem., vol. 12, no. 3, pp. 1470–1477, 2019, doi: 10.31788/RJC.2019.1235240.

S. Arif, “Alternatif Penggunaan Plastik Polypropylene Pada Campuran Aspal,” J. CIVILA, vol. 3, no. 1, p. 140, 2018, doi: 10.30736/cvl.v3i1.221.

T. Imankulov, B. Daribayev, and S. Mukhambetzhanov, “Comparative analysis of parallel algorithms for solving oil recovery problem using cuda and opencl,” Int. J. Nonlinear Anal. Appl., vol. 12, no. 1, 2021, doi: 10.22075/IJNAA.2021.4809.

S. Permana, M. Andriani, and D. Dewiyana, “Production Capacity Requirements Planning Using The Capacity Method Requirement Planning,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 4, 2021, doi: 10.52088/ijesty.v1i4.165.

R. Sudi, “The Study of Starch Seeds Durian (Durio zibethinus) Effect as the Filler Material on Tensile Strength and Biodegradation of Polymers Polystyrene (PS),” J. Aceh Phys. Soc., vol. 2, no. 1, pp. 7–8, 2013.

R. Punyamurthy, D. Sampathkumar, 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., vol. 29, no. 3, pp. 289–294, 2017, doi: 10.1016/j.jksues.2015.10.004.

Y. Yurike, Y. Yonariza, and R. Febriamansyah, “Patterns of Forest Encroachment Behavior Based on Characteristics of Immigrants and Local Communities,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 4, 2021, doi: 10.52088/ijesty.v1i4.170.

S. Srithongkham, L. Vivitchanont, and C. Krongtaew, “Starch/Cellulose Biocomposites Prepared by High-Shear Homogenization/Compression Molding,” J. Mater. Sci. Eng. B, vol. 2, no. 4, pp. 213–222, 2012.

M. Mahfut, “Identification and Efforts to Control Infection Odontoglossum ringspot virus (ORSV) on Orchid,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 1, 2021, doi: 10.52088/ijesty.v1i1.38.

V. Wineka Nirmala, D. Harjadi, and R. Awaluddin, “Sales Forecasting by Using Exponential Smoothing Method and Trend Method to Optimize Product Sales in PT. Zamrud Bumi Indonesia During the Covid-19 Pandemic,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 4, 2021, doi: 10.52088/ijesty.v1i4.169.

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.

R. Dewi, Nasrun, Zulnazi, M. Riza, and H. Agusnar, “Improved mechanical and thermal properties of modified thermoplastic starch (TPS) from sago by using Chitosan,” Pertanika J. Sci. Technol., vol. 27, no. 3, pp. 1441–1450, 2019.

L. Opirina, A. Azwanda, and R. Febrianto, “Analysis of The Mechanical Properties of Concrete Based on Fly Ash and Palm Oil Clinkers,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 4, 2021, doi: 10.52088/ijesty.v1i4.148.

B. Juanda Surbakti, V. Mardina, and B. Al Fajar, “Effect of Sphagneticola Trilobata Extract on Histological Wistar Rat Kidney Induced by DMBA,” Int. J. Eng. Sci. Inf. Technol., vol. 1, no. 3, 2021, doi: 10.52088/ijesty.v1i3.82.

A. Balaji, B. Karthikeyan, and C. Sundar Raj, “Bagasse fiber – The future biocomposite material: A review,” Int. J. ChemTech Res., vol. 7, no. 1, pp. 223–233, 2015.

F. Xie, E. Pollet, P. J. Halley, and L. Avérous, Polysaccharides. 2021.

O. Faruk, A. K. Bledzki, H. P. Fink, and M. Sain, “Biocomposites reinforced with natural fibers: 2000-2010,” Prog. Polym. Sci., vol. 37, no. 11, pp. 1552–1596, 2012, doi: 10.1016/j.progpolymsci.2012.04.003.



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