A Novel Nonlinear Theoretical Framework for Composite Theory: Case Study with PP-MCC Composite

This research explores a novel theoretical approach to model tensile strength behavior in Microcrystalline Cellulose (MCC)-reinforced Polypropylene, with varying volume fraction of the reinforcing component. By modifying the MCC with a sunflower oil-based surface treatment, a deviation from the well-established linear Bowyer and Bader’s model is observed, especially at low volume fractions of surface-modified reinforcement. The study suggests a non-linear adjustment to the model to accurately describe these deviations, introducing a nonlinear exponent to better represent matrix-reinforcement interactions. This research provides a more delicate understanding of these interactions, offering insights that could lead to further refinement of existing theoretical models. The findings suggest that this approach could enhance the predictive accuracy of tensile strength in composite materials, ultimately contributing to the development of stronger, more reliable materials for a diverse range of applications.