木塑，即木塑复合材料，是国内外近年蓬勃兴起的一类新型复合材料，指利用聚乙烯、聚丙烯和聚氯乙烯等，代替通常的树脂胶粘剂，与超过 35%-70%以上的木粉、稻壳、秸秆等废植物纤维混合成新的木质材料，再经挤压、模压、注塑成型等塑料加工工艺，生产出的板材或型材。主要用于建材、家具、物流包装等行业。将塑料和木质粉料按一定比例混合后经热挤压成型的板材，称之为挤压木塑复合板材。
Wood plastics, or wood-plastic composites, is a new type of composites that have been flourishing in recent years at home and abroad. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, instead of the usual resin adhesives, and the mixing of wood flour, rice husk, straw and other waste vegetable fibers into new wood materials, which are then extruded, moulded and pressed. Plastic processing technology, such as injection moulding, produces plates or profiles. Mainly used in building materials, furniture, logistics packaging and other industries. The extruded wood-plastic composite sheet is a hot extruded sheet which mixes plastic and wood powder in a certain proportion.