Modified Bamboo Powder Enhances the Compressive Strength of Paper Rings for Pulp Molded Products

Abstract This study systematically investigates the preparation of modified bamboo powder and its application in enhancing the performance of paper and pulp-molded products. Chemical modification improves the dispersion of bamboo powder in paper matrices and strengthens interfacial adhesion with fibers, leading to significant improvements in key physical properties, including tensile strength, ring compressive strength, tear resistance, and burst resistance. The results demonstrate that modified bamboo powder offers not only effective mechanical reinforcement but also environmental and economic advantages. It serves as a viable partial substitute for traditional cationic starch enhancers, presenting a sustainable, low-cost alternative for the paper products industry. Furthermore, this research provides theoretical support for the high-value utilization of bamboo-based biomass in papermaking and molding, and contributes to the expansion of the bamboo industry chain and the green transformation of the wood processing sector.