Enhancing sustainability with lignin-based green adhesives for bamboo bioplastics

Replace plastic by bamboo, is still a significant challenge in replacing toxic adhesives commonly used in bamboo-based materials. Mainstream adhesives like phenolic resin and urea-formaldehyde resin contain harmful substances. Developing eco-friendly and cost-effective adhesives is crucial. By utilizing biobased choline chloride and vanillin to create a lignin-based adhesive, exceptional bonding strength to wood and bamboo is achieved. This innovative adhesive enhances the mechanical properties of five-layer plywood compared to conventional alternatives. Notably, it can be combined with Moso bamboo powder to produce a bamboo-based composite material with superior mechanical strength, thermal insulation, water resistance, mildew resistance, and biodegradability at a low cost. This biocomposite material addresses issues seen in existing bamboo composites, offering a sustainable alternative to rigid plastics due to its outstanding properties and affordability.