Extraction and Performance of Novel Lignocellulose from Agro-Wastes: Synergistic Integration of Waste into Ecofriendly Polymer Composites

This research focuses on reusing waste materials to reduce the demand for fresh raw materials, thereby preserving natural resources. This approach also minimizes the energy and greenhouse gas emissions of extracting and manufacturing raw materials. We are developing eco-friendly, versatile polymer composites, aligning with the circular economy movement's goals of promoting sustainable resource utilization and waste minimization through closed-loop product life cycles. This research uses a hybrid polymer reinforced with lignocellulose agro-fibers (LCAF) from vegetable waste residues. Three different agro-wastes, such as orange peels, jute, and palmyra fruit peduncle, have been used. It investigates two phases, initially different fiber ratios from 3 to 12% and varying fiber lengths from 5 to 20 mm in the secondary phase, respectively. The LCAF is obtained through mechanical and chemical pre-treatment to enhance its properties for use in food packaging. The fiber containing 9% LCAF demonstrated a superior hardness and tensile strength of 118 BHN and 63 MPa compared to the polyester matrix. The water absorption improved from 2.03% to 4.76%, depending on the type of raw material and pre-treatment used to produce the LCAFs.