This study explores the valorisation of agro-industrial waste, specifically cassava peel (Manihot esculenta), as a reinforcing phase in polymeric biocomposites with potential application as biodegradable bags. Through a multidisciplinary approach integrating materials engineering and principles of sustainable development, the mechanical, physical, and chemical behaviour of biocomposites formulated with thermoplastic matrices and natural fibres is analysed.

The cassava peel residue was characterised in terms of particle size, moisture content, and chemical composition. Specimens with varying proportions of natural reinforcement were fabricated and subjected to a series of tests to evaluate their tensile strength, water absorption capacity, surface morphology, and chemical functionality using Fourier-transform infrared spectroscopy (FTIR). The FTIR analysis confirmed the presence of functional groups relevant to bonding within the composite matrix.

The preliminary results suggest that the incorporation of this agro-industrial residue contributes to the enhancement of mechanical integrity and durability of the material while reducing its overall environmental footprint. Furthermore, its application in the development of biodegradable bags provides an innovative pathway to mitigate plastic pollution.

This research promotes circular economy practices by providing a feasible strategy for the recovery and reuse of waste materials in both rural and industrial contexts. It fosters cleaner production processes, supports the transition to bio-based resources, and contributes to the development of sustainable materials for packaging and low-impact construction systems.