Formulation and Testing of Properties of Starch Based Bioplastics with Cellulosic Reinforcement

Overview

With an ever-rising plastic waste problem and increasing greenhouse gas emissions, a solution is needed to reduce the environmental impact of plastic while still benefiting from its functionality. Bioplastics, or plastics made from natural materials, have arisen to address this problem, and starch -based bioplastics are receiving special attention due to their easy manufacturability and accessibility. However, pure starch- based bioplastics are weak and require reinforcements in order to improve their mechani cal properties so they can be useful for applications. Cellulose and its derivatives have been highlighted as a positive reinforcer for starch-based bioplastics, improvement in strength being one of the most highlighted benefits. This study aims to test which of the two forms of cellulose I, α or ß, provides the greatest benefit to starch- based plastics by improving its mechanical properties. This study specifically tests tensile strength and water solubility to compare three varieties of bioplastic based on these characteristics. The end result demonstrates cellulose Iα was the superior plastic when tested with water solubility and tensile strength, with beta barely providing any benefit over the control.

Competition history

• JSHS 2024 Category not listed

Resources

• National JSHS abstract book ↗

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