Search

CN-121976638-A - High-strength weather-resistant resin tile and preparation method thereof

CN121976638ACN 121976638 ACN121976638 ACN 121976638ACN-121976638-A

Abstract

The invention belongs to the technical field of building materials, and discloses a high-strength weather-resistant resin tile and a preparation method thereof. The high-strength weather-resistant resin tile comprises a PVC layer, a composite fiber net layer and an ASA layer from bottom to top in sequence, wherein the composite fiber net layer is formed by solidifying a PVC paste wrapped by the composite fiber net, the PVC paste comprises the following raw materials, by weight, 100 parts of PVC resin powder, 20-24 parts of a plasticizer, 4-6 parts of calcium carbonate, 0.5-1.5 parts of a lubricant and 1-2 parts of a heat stabilizer, the composite fiber net comprises a polyester fiber net, an ultra-high molecular weight polyethylene fiber net and a modified basalt fiber net from bottom to top in sequence, and the modified basalt fiber net is prepared by attaching silicon nitride to the surface of the basalt fiber net. According to the invention, the composite fiber net layer is arranged between the ASA layer and the PVC layer, so that the impact resistance, bending strength and other mechanical properties of the resin tile and the weather resistance such as ageing resistance can be remarkably improved.

Inventors

  • LIANG WEIQING
  • LIANG JIATAO
  • YUAN CHAO
  • Huo Zhuzao

Assignees

  • 广东扬明光伏科技有限公司

Dates

Publication Date
20260505
Application Date
20260130

Claims (10)

  1. 1. The resin tile is characterized by sequentially comprising a PVC layer, a composite fiber net layer and an ASA layer from bottom to top, wherein the composite fiber net layer is formed by solidifying a PVC paste wrapped by a composite fiber net, the PVC paste comprises the following raw materials, by weight, 100 parts of PVC resin powder, 20-24 parts of a plasticizer, 4-6 parts of calcium carbonate, 0.5-1.5 parts of a lubricant and 1-2 parts of a heat stabilizer, the composite fiber net sequentially comprises a polyester fiber net, an ultra-high molecular weight polyethylene fiber net and a modified basalt fiber net from bottom to top, and the modified basalt fiber net is prepared by a preparation method comprising the following steps: 1) Mixing basalt fiber net, dopamine hydrochloride and tris buffer solution, stirring and drying to obtain an activated basalt fiber net; 2) Mixing silicon nitride, dopamine hydrochloride and a tris buffer solution, stirring and drying to obtain activated silicon nitride; 3) Mixing and stirring the activated silicon nitride, the tris buffer solution and the dispersing agent to obtain an activated silicon nitride dispersing solution; 4) Spraying the activated silicon nitride dispersion liquid on the surface of the activated basalt fiber net, and drying to obtain the modified basalt fiber net.
  2. 2. The resin tile according to claim 1, wherein the PVC layer comprises the following raw materials, by weight, 100 parts of PVC resin powder, 11-14 parts of chlorinated polyethylene, 15-25 parts of calcium carbonate, 3-5 parts of titanium dioxide, 0.5-1.5 parts of a lubricant and 1-3 parts of a heat stabilizer.
  3. 3. The resin tile according to claim 1, wherein the plasticizer comprises at least one of dioctyl phthalate, tricresyl phosphate and epoxidized soybean oil, and/or the lubricant comprises at least one of polyethylene wax, stearic acid and monoglyceride of stearic acid, and/or the heat stabilizer comprises at least one of a calcium zinc stabilizer, an epoxy compound and a phosphite.
  4. 4. The resin tile according to claim 1, wherein the polyester fiber web has an areal density of 400-600g/m 2 and a filament diameter of 10-30 μm.
  5. 5. The resin tile according to claim 1, wherein the ultra-high molecular weight polyethylene fiber web has an areal density of 600-800g/m 2 and a filament diameter of 10-30 μm.
  6. 6. A resin tile according to claim 1, wherein the basalt fiber mesh has an areal density of 400-600g/m 2 and a filament diameter of 10-30 μm.
  7. 7. The resin tile according to claim 1, wherein the silicon nitride has a particle size of 50-200nm.
  8. 8. A method for producing a resin tile according to any one of claims 1 to 7, comprising the steps of: And superposing the PVC layer, the composite fiber net layer and the ASA layer, and performing hot press molding to obtain the resin tile.
  9. 9. The method of making according to claim 8, wherein the method of making the composite web layer comprises the steps of: 1) Superposing and fixing a polyester fiber web, an ultra-high molecular weight polyethylene fiber web and a modified basalt fiber web to obtain a composite fiber web; 2) Dipping the composite fiber net in PVC paste to obtain a composite fiber net with the surface coated with the PVC paste; 3) And drying the composite fiber net with the PVC paste wrapped on the surface, and solidifying the PVC paste to obtain the composite fiber net layer.
  10. 10. The method according to claim 9, wherein the drying temperature is 160-200 ℃ and the drying time is 10-30min.

Description

High-strength weather-resistant resin tile and preparation method thereof Technical Field The invention belongs to the technical field of building materials, and particularly relates to a high-strength weather-resistant resin tile and a preparation method thereof. Background The resin tile is a light roofing building material prepared by taking polyvinyl chloride (PVC), acrylonitrile-styrene-acrylate copolymer (ASA) or Polycarbonate (PC) and other resins as main materials and adopting a coextrusion or lamination process. Compared with the traditional ceramic tiles, metal tiles and glazed tiles, the ceramic tile has the advantages of light weight, corrosion resistance, impact resistance, good color stability, convenience in installation and the like, and is favored by the building industry. However, the existing resin tiles have poor strength, impact resistance and weather resistance, and are easy to deform in use. Therefore, it is necessary to further improve the strength, impact resistance and weather resistance of the resin tile. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the prior art described above. Therefore, the invention provides a high-strength weather-resistant resin tile and a preparation method thereof. The resin tile provided by the invention has excellent strength, impact resistance and weather resistance. The invention provides a resin tile, which sequentially comprises a PVC layer, a composite fiber net layer and an ASA layer from bottom to top, wherein the composite fiber net layer is formed by solidifying a PVC paste wrapped by a composite fiber net, the PVC paste comprises the following raw materials, by weight, 100 parts of PVC resin powder, 20-24 parts of a plasticizer, 4-6 parts of calcium carbonate, 0.5-1.5 parts of a lubricant and 1-2 parts of a heat stabilizer, the composite fiber net sequentially comprises a polyester fiber net, an ultra-high molecular weight polyethylene fiber net and a modified basalt fiber net from bottom to top, and the modified basalt fiber net is prepared by a preparation method comprising the following steps: 1) Mixing basalt fiber net, dopamine hydrochloride and tris buffer solution, stirring and drying to obtain an activated basalt fiber net; 2) Mixing silicon nitride, dopamine hydrochloride and a tris buffer solution, stirring and drying to obtain activated silicon nitride; 3) Mixing and stirring the activated silicon nitride, the tris buffer solution and the dispersing agent to obtain an activated silicon nitride dispersing solution; 4) Spraying the activated silicon nitride dispersion liquid on the surface of the activated basalt fiber net, and drying to obtain the modified basalt fiber net. Specifically, the invention introduces the composite fiber net layer into the resin tile, and the upper layer of the composite fiber net layer directly faces to the external environment (ultraviolet rays, rain and snow, cold and hot impact and the like), so that the upper layer needs to ensure high strength and weather resistance, poly-dopamine microspheres are grown on the surface of the basalt fiber net and the surface of the silicon nitride, and the adhesiveness and the activity of the surface of the basalt fiber net and the surface of the silicon nitride are improved, so that the silicon nitride is extremely easy to be attached to the surface of the basalt fiber net, active groups such as hydroxyl are introduced while the roughness of the basalt fiber net surface is improved, the interface bonding effect between the modified basalt fiber net and PVC paste is enhanced, and the mechanical properties (high strength, impact resistance) and weather resistance are remarkably improved; the ultra-high molecular weight polyethylene fiber net with high specific strength and high specific modulus is used as the middle main stress layer, so that better mechanical properties can be realized under lighter weight, and the polyester fiber net is used as the bottom layer, so that good flexibility and creep resistance can be provided, more impact energy can be absorbed, and downward crack expansion is prevented. The composite fiber web layer realizes the combination of high strength, high impact resistance and high weather resistance which can not be achieved by a single fiber web through the combined action of the fiber webs with the three specific properties. In some embodiments of the invention, the PVC layer comprises the following raw materials, by weight, 100 parts of PVC resin powder, 11-14 parts of chlorinated polyethylene, 15-25 parts of calcium carbonate, 3-5 parts of titanium dioxide, 0.5-1.5 parts of a lubricant and 1-3 parts of a heat stabilizer. In some embodiments of the invention, the PVC resin powder has a degree of polymerization of 1000 to 1200. In some embodiments of the invention, the plasticizer comprises at least one of dioctyl phthalate, tricresyl phosphate, and epoxidized soybean oil. In some embo