| abstract |
The invention relates to a plastic-wood composite material plate with adsorption and purification functions and a preparation method thereof, belonging to the technical field of composite materials and novel chemical building materials. The invention is composed of a lignin/plastic composite core layer, a wood powder/plastic composite intermediate layer and a chitosan modified outer shell layer, wherein the wood powder/plastic composite intermediate layer is positioned between the lignin/plastic composite core layer and the chitosan modified outer shell layer. The invention has convenient production and manufacture, strong production continuity and high production efficiency; compared with wood materials, the wood-plastic composite material is more corrosion-resistant, mothproof, free of cracking and aging, free of color difference, free of paint falling in the using process and the like; compared with common plastic-wood composite materials, the composite material has the advantages that the porous structure design is adopted, and materials with the adsorption characteristic are used, so that the composite material has excellent capability of adsorbing toxic and harmful gases and dust, is favorable for purifying air, particularly indoor air, and improves human living environment. |