Supplementary Files
Keywords
Starch
Degradable Plastics
Reinforced
Zinc Oxide
How to Cite
Abstract
This study explores the synthesis and characterization of arrowroot starch-based degradable plastics reinforced with zinc oxide (ZnO). The experimental design incorporated the use of arrowroot tuber starch in varying concentrations of 10, 15, 20, and 25 g, in conjunction with ZnO from 10, 20, 30, and 40%. The highest tensile strength is observed in the presence of 15 g of starch and 30% ZnO, exhibiting a value of 4.7770 MPa. The addition of ZnO fillers to degradable plastics results in enhanced mechanical strength, with increased ZnO content leading to greater strength. The mixing process exerts a significant influence on the resulting mechanical properties. Optimal mixing conditions, including appropriate speeds and times, result in a uniform distribution of particles, thereby enhancing the mechanical strength of the material. The specify which organic group present in the compound analysis of degradable plastics are characterised by a high degree of hydrophilicity, which enables them to bind to water. Thermogravimetric analysis indicates that the plastic is capable of withstanding elevated temperatures. A loss of weight is observed between 312.72°C to 344.31°C. It was observed that an improve in the percentage of ZnO used determined in a corresponding increase of water absorption value from degradable plastic. The lowest water absorption value, at 17.59%, was observed when 25 g of starch mass and 10% ZnO were used. The plastic was completely degraded on the19th day, which is substantially shorter than the 180-day biodegradation period specified in ASTM D5338.
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