生物基添加剂增强木塑复合材料耐老化性能研究进展OACHSSCD

The aging behavior of wood-plastic composites(WPCs)in outdoor environment significantly affects their service life and functional stability.Current research often adds petroleum-based anti-aging additives to improve the weather resistance of WPCs.However,such additives have potential environmental risks,including migration,leaching and poor natural degradability.Therefore,replacing petroleum-based additives with renewable and environmentally friendly bio-based additives is an important approach to enhance WPCs'weather resistance.This paper reviews the application of filler-type additives and extract-type additives to the research on weather resistant composites,and summarizes research progress in improving the weather resistance of composites through bio-based additive blends and bio-based/non-bio-based additive blends.In view of existing challenges such as poor interfacial compatibility between bio-based additives and matrix materials,unclear synergistic mechanisms of bio-based additive blends,and insufficient comprehensive weather resistance of composites,this paper discusses the future research directions for bio-based additives in enhancing WPCs'weather resistance.The aim is to provide a scientific basis for developing wood-plastic composites with high weather resistance,sufficient biocompatibility,and good biodegradability.