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CN-117532971-B - Composite environment-friendly decorative plate and preparation method thereof

CN117532971BCN 117532971 BCN117532971 BCN 117532971BCN-117532971-B

Abstract

The invention discloses a composite environment-friendly decorative plate which comprises a base material, at least one decorative layer and a coating layer, wherein both sides of the base material are wavy, the decorative layer is fixed on at least one side of the base material through a hot pressing process, the decorative layer is a wood fiber plate which is attached to the surface of the wavy base material and is in a three-dimensional cross-linked reticular structure, and the coating layer is coated on the outer sides of the base material and the decorative layer and is filled in each gap between the base material and the decorative layer. The invention improves the toughness and strength of the existing decorative plate by changing the plate structure and components respectively, and has better environmental protection performance.

Inventors

  • WU JINGHUA
  • JIANG NA
  • JIN GUANNAN
  • GUO XIAO
  • SHEN YABO
  • PENG GENG

Assignees

  • 中建海峡建设发展有限公司

Dates

Publication Date
20260508
Application Date
20231206

Claims (6)

  1. 1. The utility model provides a compound environmental protection dalle, includes substrate, at least one deck modification and dope layer, its characterized in that: both sides of the base material are wavy; The decoration layer is a wood fiber board which is attached to the surface of the wavy substrate and is in a three-dimensional cross-linked network structure, and the porosity of the wood fiber board is 30-40%; The wood fiber board is formed by processing a composite fiber body with wood fibers, polyether ester elastic fibers and silicon carbide fibers as matrixes, and the preparation method comprises the following steps: (1) Crushing wood fiber, polyether ester elastic fiber and silicon carbide fiber, then placing the crushed wood fiber, polyether ester elastic fiber and silicon carbide fiber into a coupling agent aqueous solution, taking out, drying, pouring into a high-speed pulverizer, and fully stirring to obtain a composite fiber material; (2) Uniformly mixing the composite fiber material with alginate and hydroxypropyl starch, and then injecting the mixed material into a die for hot pressing to form a two-dimensional fiber sheet; (3) The two-dimensional fiber sheet layer is subjected to superposition, braiding and winding by utilizing a needling process to form a three-dimensional crosslinked reticular matrix; the coating layer is coated on the outer sides of the base material and the modification layer and is filled in each gap between the base material and the modification layer, wherein the coating layer comprises, by weight, 50-60 parts of composite aqueous resin emulsion, 10-20 parts of carbon nanotubes, 3-5 parts of magnesium-based bentonite, 3-5 parts of spodumene powder, 2-3 parts of talcum powder, 2-3 parts of flame retardant and 2-3 parts of auxiliary agent; The composite aqueous resin emulsion comprises polyvinyl acetate emulsion, styrene modified acrylic emulsion and paraffin acrylic composite emulsion.
  2. 2. The composite environment-friendly decorative board as claimed in claim 1, wherein the thickness of the wood fiber board is 10-30 mm.
  3. 3. The composite environment-friendly decorative plate as claimed in claim 1, wherein the base material is one of PVC coiled material, bamboo fiber and wood fiber or solid wood plate.
  4. 4. A method for preparing the composite environmental-friendly decorative board as claimed in any one of claims 1 to 3, comprising the steps of: s1, mixing a polyvinyl acetate emulsion, a styrene modified acrylic emulsion and a paraffin acrylic composite emulsion, and stirring and heating to 80-100 ℃ to enable the composite aqueous resin emulsion to be in a uniform liquid state; S2, adding the carbon nano tube into the uniform composite aqueous resin emulsion, stirring and mixing, fully mixing, reducing the temperature of the mixture to 70-80 ℃, adding magnesium-based bentonite, hectorite powder, talcum powder, flame retardant and auxiliary agent into the mixture, fully stirring and reacting for 1-3h after mixing, and filtering to obtain the coating for later use; s3, compounding the wood fiber board and the base material by a hot-pressing process, and then reducing the pressure and stretching the board to prepare a composite board with a decorative layer; And S4, filling the coating prepared in the step S2 into the composite board with the decorative layer prepared in the step S3, completely coating the substrate with the coating, performing light curing treatment after stabilizing treatment of 12-16h, and obtaining the composite environment-friendly decorative board.
  5. 5. The method of manufacturing a composite environmental protection decorative board as described in claim 4, wherein the wood fiber board and the base material in the step S3 are sent to a hot press for hot pressing, the hot pressing temperature is 160-200 ℃, the hot pressing pressure is 1.5-2.0 MPa, the hot pressing time is 1.0-1.5 min/mm, the obtained composite board is cooled to below 60 ℃ after hot pressing, and then the composite board with a decorative layer is obtained by depressurization and stretching.
  6. 6. The method of claim 4, wherein the light source used in the photo-curing process in step S4 is ultraviolet light, and the photo-curing process time is 30-40 min.

Description

Composite environment-friendly decorative plate and preparation method thereof Technical Field The invention belongs to the technical field of building decoration materials, and particularly relates to a composite environment-friendly decorative plate and a preparation method thereof. Background The decoration board can be divided into two parts, one part is an outdoor material and the other part is an indoor material, wherein the indoor material can be divided into five types of stone, board, sheet, section bar and wire, and can be used for decorating inner and outer walls of general houses, shops, schools, storehouses, office buildings and the like. Along with the increasing demands of people on living environment, the selection of indoor materials tends to be environment-friendly and attractive. The wood board is divided into a solid wood board and an artificial board, the solid wood board is free of any additive in use and environment-friendly and pollution, but the solid wood board is greatly influenced by temperature and weather when being used for decoration, is easy to damp and difficult to maintain, the artificial board is mainly made of solid wood or crushed or cut and added with adhesive, the most common artificial board in the market is made of a density board, a particle board, a gramineous board, a composite board and the like, the artificial board is easy to cut and process, stable in performance and difficult to damp and deform, and can be used in various scenes, but the artificial board is required to be added with adhesive, and is slightly inferior to the solid wood board in terms of environment-friendly performance. The composite board in the artificial board is a decoration board with the largest usage amount and the greatest acceptance in recent years, the composite board is a board formed by combining two or more materials, in practice, the concept and the manufacturing method of the composite board are different from those of boards made of different materials, the materials composing the composite board are various, the composite board can ensure the health of a user when being used according with the environment-friendly concept, the pollution is effectively reduced, the usage amount of solid wood can be reduced, and the service life of the board is prolonged. The existing composite board has the advantages of more general environmental protection effect, general impact resistance capability, relatively single function, and the like, and does not have the functions of relatively good moisture absorption, mildew resistance, bacteriostasis, insect expelling, adsorption, purification and the like. The patent with the application number 201310186729.8 discloses a plywood with a composite structure, which is prepared by taking a polyethylene plastic film as a bonding material between a veneer and a non-woven fabric and hot-pressing. The patent with the application number 201310739400.X discloses an environment-friendly bamboo-wood composite board and a manufacturing method thereof, wherein single boards and bamboo materials are used as main raw materials, plastic films or plastic woven fabrics are used as cementing materials, the single boards and the bamboo materials are assembled according to a symmetrical structure principle and pressed into the bamboo-wood composite board at a certain temperature and under a certain pressure, and the plastic films or the plastic woven fabrics and non-woven fabrics are used as cementing materials, so that the cementing strength, the internal bonding strength, the bending strength and other physical and mechanical properties of the board can be influenced to a certain extent. Disclosure of Invention In order to solve the problems in the prior art, the invention provides the composite environment-friendly decorative plate and the preparation method thereof, wherein the toughness and the strength of the existing decorative plate are improved by changing the plate structure and the components respectively, and the environment-friendly performance is better. The technical scheme of the invention is as follows: The invention provides a composite environment-friendly decorative plate which comprises a base material, at least one decorative layer and a coating layer, wherein both sides of the base material are wavy, the decorative layer is fixed on at least one side of the base material through a hot pressing process, the decorative layer is a wood fiber plate which is attached to the surface of the wavy base material and is in a three-dimensional cross-linked reticular structure, and the coating layer is coated on the outer sides of the base material and the decorative layer and is filled in each gap between the base material and the decorative layer. Further, the coating layer comprises, by weight, 50-60 parts of a composite aqueous resin emulsion, 10-20 parts of carbon nanotubes, 3-5 parts of magnesium-based bentonite, 3-5 parts of spodumene powder, 2-3 pa