▎ 摘　　要

NOVELTY - Commercial-grade high-performance floor comprises a recycled rubber buffer layer (1), a modified PVC sound-insulating core board (2), a PVC stone-plastic layer (3) and a cork board composite layer (4). The PVC stone-plastic layer is the base layer of the floor. The cork board composite layer is fixedly arranged on the upper end surface of the PVC stone-plastic layer. The modified PVC sound-insulating core board is fixedly arranged on the lower end surface of the PVC stone-plastic layer. The recycled rubber buffer layer is fixedly arranged on the lower end surface of the modified PVC sound-insulating core board. A rectangular cavity is arranged on the bonding surface. The inner filling is provided with EVA material filling. USE - The commercial-grade high-performance floor is used in office and other places, and meeting room. ADVANTAGE - The method uses the PVC stone-plastic layer as the base layer of the floor, so that the floor has good flame-retardant and moisture-proof performance, at the same time, the added spiral carbon fiber greatly improves the toughness and sound-proof and noise-reducing capability. The use of silicon dioxide and aluminum oxide greatly enhances the abrasion resistance of the surface layer, greatly improving the using strength and service life of floor, making the floor more business land, and making the business more heavy. The silencing mixed filler is filled in the silencing hole for filling the sound-absorbing cotton and foaming agent mixture, greatly enhancing the sound insulation and noise reduction capability of floor. The soft-plank composite layer of surface layer is soaked by resin. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the commercial-grade high-performance floor, comprising (1) adding 30 pts. wt. PVC-CPE blended resin, 35 pts. wt. stone powder, 15 pts. wt. spiral carbon fiber, 5 pts. wt. light calcium carbonate, 5 pts. wt. zinc stearate, 4 pts. wt. auxiliary agent, 2 pts. wt. internal lubricant, 2 pts. wt. external lubricant and 2 pts. wt. heat stabilizer into a high-speed mixer and uniformly stirring, (2) adding the mixture obtained in the step (1) to the twin-screw extruder in batches, heating and extruding, then using a four-roller machine to determine the thickness, performing the cooling molding to open the sound-absorbing hole to obtain the finished PVC stone-plastic layer, (3) soaking the cork board in pure MF resin, after soaking, adding silicon dioxide and aluminum oxide to carry out composite modification, then drying and solidifying, and carrying out hot pressing to obtain the cork board composite layer, (4) adding 40 pts. wt. nitrile rubber, 35 pts. wt. polyvinyl chloride, 10 pts. wt. tungsten powder, 10 pts. wt. graphene, 2 pts. wt. heat stabilizer and 3 pts. wt. auxiliary agent into the high-speed mixer and mixing for 45 minutes, then adding polar monomer methyl methacrylate for graft modification, and hot pressing to obtain modified PVC sound-insulating core board, and (5) hot-pressing the formed PVC stone-plastic layer and the cork board composite layer, then filling the sound-absorbing mixed filler from the lower end surface of the PVC stone-plastic layer, embedding EVA material filler between the modified PVC sound-insulating core board and the recycled rubber buffer layer, then using phenolic resin for bonding, embedding the upper end surface of the modified PVC sound-insulating core board into the lower end surface of the PVC stone-plastic layer, using phenolic resin for bonding, and performing post-processing to obtain a finished floor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic front structure of the commercial-grade high-performance floor. 1Recycled rubber buffer layer 2Modified PVC sound-insulating core board 3PVC stone-plastic layer 4Cork board composite layer