Coir Fiber-Filled Polylactic Acid Composites: Study of Fracture Toughness and Biodegradable Property

In this study, coconut coir fiber reinforcing was used to create biodegradable polylactic acid (PLA) composites. To make composite plates in response to the growing demand for eco-friendly materials, this study evaluates the load-bearing capability of treated and untreated fiber-filled PLA composites. A single-edge notch bending (SENB) test sample was used to assess the fracture toughness of these composites. Furthermore, a systematic weight reduction analysis over time is employed to assess the biodegradability of the composites. The untreated fiber-filled composite materials have a greater capacity to withstand loads because of their increased biodegradability at larger weight fractions. The fracture toughness performance and environmental effects of poly lactic acid composite materials filled with coconut coir are discussed in this study, highlighting the materials’ potential as sustainable resources for a range of uses. The findings suggest that the treated 10-weight percentage of coir-filled PLA composites exhibited maximum fracture toughness (FT) values.