Investigation on the characteristic of thermoplastic cornstarch composite reinforced short pineapple leaf fiber (PALF) By using mixer method of preparation

M. Azman, Akalili Asilah (2019) Investigation on the characteristic of thermoplastic cornstarch composite reinforced short pineapple leaf fiber (PALF) By using mixer method of preparation. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Pineapple leaf fiber (PALF) is rich in cellulose, is cheap, and is widely found to have the potential to stabilize polymers. The purpose of this study was to study the mechanical, physical and environmental properties of thermoplastic cornstarch (TPCS) reinforced by PALF using mixing method. This study investigates tests such as tensile, flexural, impact, moisture content, water absorption, water solubility and soil burial reaction against thermoplastic cornstarch (TPCS) composite reinforced with PALF on fiber content differences. This study used short PALF and fiber content of 30%, 40%, 50%, 60% and 70%. TPCS is made using high-speed mixer and hand mixing by mixing TPCS of 70% of the original corn flour with 30% glycerol. PALF and TPCS were mixed and the sample weight was 40g. The tensile strength and modulus of Young composites were found to increase with increasing fiber content. The results are optimum at 60% fiber. The flexural and strength of composite bending is highest at 50% fiber weight. Composite strength for impact test was highest at 30% fiber content. On physical tests which are density measurement, moisture content and water absorption highest at 20% fiber content. Similar to physical tests, environmental test results were also recorded highest at 20%. TPCS PALF composites have better mechanical properties than other cellulose-based natural fiber composites and are potentially high in the future.

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