A study on mechanical, physical, and environment properties on thermoplastics cornstarch composite reinforced by untreated pineapple leaf fibre using hybrid method

Saharuddin, Nurul Syaza Izzaty (2019) A study on mechanical, physical, and environment properties on thermoplastics cornstarch composite reinforced by untreated pineapple leaf fibre using hybrid method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this research is to study on mechanical, physical, and environment properties on thermoplastics cornstarch (TPCS) composite reinforced by untreated pineapple leaf fibre (PALF) using hybrid method. Composite has been manufactured with the use of 10mm length of pineapple fibre and has evaluated the ratio characteristics of the different loads of fibres of 30 wt.% and 40 wt.% of 60 wt.% and 70 wt.%. The sample had been manufactured using a hand-mixed and high-speed mixer to form TPCS by using 70 wt.% native cornstarch mixed with 30 wt% glycerol. TPCS and PALF were then stacked using a hybrid method, where TPCS/PALF composites had total weight of 40g. The composites TPCS/PALF were examined and compared. For the mechanical properties, the highest tensile is 10.0733 MPa at 50 wt.% while flexural shows highest result at 60 wt.% which is 16.75661 MPa and the highest impact is 5.44725 kJ/m² at 30 wt.%. For the physical properties, the highest result for density, moisture content and water absorption are 1.39%, 13.32%, 133.73% when they are at 30 wt%, 40 wt% and 50 wt% of fibre loading respectively. For the environment properties, water solubility and soil burial are both shows slightly decreased starting from their highest result which is at 30 wt%. The highest result for water solubility is 30.54% and for soil burial is 62.96%. As such, PALF/TPCS composites have the potential to replace the existing composites in the market.

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