CELLULOSE, cilt.1, sa.1, ss.1-18, 2025 (SCI-Expanded)
In this study, the multi-objective optimization of selected mechanical properties of polyester composite plates, produced using hemp and jute fibers in the same structure, were investigated using the Taguchi-TOPSIS method. Hemp and jute natural fibers were incorporated at weight ratios of 30%, 50%, and 70%, with two different arrangements and two surface modification treatments applied to reinforce the composites. Polyester resin was used as the matrix material. Taguchi L18 mixed 2–3 level orthogonal experimental design was employed in the experimental plan. The selected mechanical properties included impact strength, flexural modulus, flexural strength, tensile modulus, and tensile strength. In the study, the optimum levels of the factors corresponding to the best mechanical properties were identified, and the optimal composite plate was determined.