present, in the field of decoration, indoor ground pavement materials are generally various wooden floors or composite wood floors. The foot feeling of the wooden floor is relatively comfortable, but problems such as expansion deformation, warping and cracking often occur during use. The wood-plastic floor is a new type of environmentally friendly plastic-wood composite material product, which is mainly composed of wood powder plant fibers, thermoplastic polymer materials and processing aids, etc., mixed evenly and then heated and extruded by mold equipment. High-tech green and environmentally friendly materials, which have both the performance and characteristics of wood and plastics, can replace wood and plastics as new environmentally friendly high-tech materials.

With the development of the times, the demand for some special floors is also increasing, such as basketball court floors. The floor of the basketball court requires good anti-slip performance and cushioning performance, but the existing plastic wood floor has poor elasticity, poor adhesion, and is prone to aging, cracking and wear. If the surface is too soft, although it has good resilience, the hardness often does not meet the actual requirements, which will lead to poor foot feel, easy wear, and easy aging. Elastic surface co-extruded plastic-wood profile and its preparation method, that is, the design of the double-layer elastic layer of the co-extruded plastic-wood profile ensures that the co-extruded plastic-wood profile has high resilience and at the same time has wear resistance and oxidation resistance, and the service life is obvious extend. Elastic surface co-extruded plastic wood profile, including core material layer, elastic inner layer and elastic surface layer, by weight, elastic inner layer includes the following raw materials by weight: 20-30 parts of natural rubber, 15-20 parts of polypropylene oxide ether polyol 15-20 parts of high-density polyethylene, 20-25 parts of poplar wood powder, 3-8 parts of coupling agent, 2-5 parts of compatibilizer, 3-5 parts of plasticizer, 5-8 parts of calcium carbonate, The elastic surface layer includes the following raw materials in parts by weight: 20-30 parts of high-density polyethylene, 20-25 parts of poplar wood powder, 10-15 parts of elastic material, 3-6 parts of compatibilizer, 3-5 parts of coupling agent, 2-3 parts of antioxidant, 1-2 parts of anti-ultraviolet agent, 2-4 parts of calcium carbonate. The thickness of the elastic surface layer is about 1/2 of the elastic inner layer.

Its effect: firstly, two layers of outer layers are hot-pressed outside the core material layer. The elastic inner layer is relatively soft and has high elasticity, while the hardness of the elastic surface layer is higher than that of the elastic inner layer, but it is softer than the core material layer. At the same time It has good wear resistance, and the elastic inner layer ensures the overall high elasticity of the co-extruded plastic-wood profile, and at the same time plays a buffer role in the damage of the elastic surface layer to the core material under strong impact. Secondly, natural rubber has good resilience, strong cushioning capacity, and is not easy to deform after forming rubber, while polypropylene oxide ether polyol has good elastic properties, which makes the elastic inner layer highly elastic, and because it is protected by the outer layer, it is not easy to deform. Oxidation, high thermal stability, and more environmentally friendly; a certain amount of elastic material is added to the elastic surface layer, so that the surface layer has a certain resilience, and the resilience performance meets the needs of use, while the content of high-density polyethylene is higher than that of the elastic inner layer, ensuring Its wear resistance, while adding antioxidants and anti-ultraviolet agents, ensures the anti-oxidation ability of the surface and prevents ultraviolet damage.

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