Lignin enhanced wood-plastic material and preparation method thereof

The invention discloses a lignin enhanced wood-plastic material and belongs to the field of high polymer composite materials. The wood-plastic composite material is composed of one or more of plant fibers, lignin, recycled thermoplastic plastics, mineral powder and processing aids, and is processed by a screw extruding and granulating process. Compared with the prior art, the lignin enhanced wood-plastic material disclosed by the invention has the advantages that due to the addition of the lignin in the wood-plastic material, the mechanical property, thermal stability and ageing resistance of the wood-plastic material are improved. 本发明公开了种木质素增强型木塑复合材料，属于高分子复合材料领域。该木塑复合材料由植物纤维、木质素、再生热塑性塑料、矿物质粉、加工助剂中的种或多种组成，采用螺杆造粒挤出工艺加工而成。与现有技术相比，本发明通过向木塑材料中加入木质素，以提高木塑材料的力学性能、热稳定性和抗老化性能。