Effect Of Sugarcane Fibre On The Morphological And Mechanical Properties Of Thermoplastic Potato Starch

Mohd Zainel, Siti Nuraishah (2018) Effect Of Sugarcane Fibre On The Morphological And Mechanical Properties Of Thermoplastic Potato Starch. Project Report. Universiti Teknikal Malaysia Melaka, Melaka,Malaysia. (Submitted)

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Abstract

Nowadays,the needs to develop more environmentally friendly products are increasing due to the non-biodegradable accumulated waste on this planet.Hence, various types of eco friendly materials have been developed to address this problems.The biopolymer obtained from renewable sources in an attractive alternative material to replace the petroleum-based polymer.This is because these alternative materials are easily biodegradable and are more environmentally friendly than conventional polymers.Starch is one of the most widely used biopolymers because of its low cost, readily available,and abundant in natural,renewable,and environmentally-friendly resources.The aim of this study is to investigate the characteristic of biodegradable thermoplastic potato starch reinforced with sugarcane fibre in the range of 1 to 15 wt.%.Potato starch was firstly pre-mixed with glycerol as the plasticizers.The weight ratio of potato starch and glycerol was maintained at 80:20.The mixture was blend using high speed mixer at 3000rpm before poured into the mould.The thermoplastic were then hot pressed at 145°C for 60 minute.The thermoplastic potato starch/sugarcane fibre were characterized for their mechanical and morphological properties.The mechanical behaviour ofTPPS/sugarcane fibre was conducted through tensile,flexural and impact testing.The morphology of TPPS/sugarcane fibre was investigated by using scanning electron microscope (SEM). Incorporation sugarcane fibre from 1 to 15 wt.% has significantly improved the tensile,flexural and impact properties of thermoplastic potato starch.The improvement in the tensile,flexural and impact properties of the composites were evidence after incorporation of sugarcane fibre.The tensile and flexural properties shows that the tensile strength and modulus of the composite increase from TPPS matrix until 15 wt.% of the fibre contain.From the tensile strength result,it is shows 202.7% improvement when TPPS reinforced with the sugarcane fibre,while the tensile modulus have 265.2% improvement for TPPS composite.Other than that,the flexural strength shows that 198% improvement and the flexural modulus 261.7% improvement for the TPPS composite.Overall,the findings from this study demonstrated that thermoplastic potato starch (TPPS) reinforced with sugarcane fibre has shown improved functional characteristic than the origin material.In conclusion,the TPPS reinforced sugarcane fibre composites are potential alternative material for biodegradable product such as biodegradable plastic packaging.

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