EB-cured polypropylene film veneer composite wood-plastic floor

Abstract

The utility model belongs to the technical field of ground paving materials, and relates to an EB (Epstein-Barr) cured polypropylene film veneer composite wood-plastic floor, which sequentially comprises a surface decorative layer, a gluing layer and a wood-plastic base material main body layer from top to bottom, the thickness of the surface decorative layer of the floor is 0.27 + / -0.05 mm, and the surface decorative layer is a single-layer or four-layer EB cured polypropylene film; the thickness of the wood-plastic composite base material main body layer is 10-18mm, and the wood-plastic composite base material main body layer is a wood-plastic material formed by mixing polyolefins and more than 50% of waste plant fibers in a thermoplastic manner; compared with the existing composite solid wood floor, the EB-cured polypropylene film veneer composite wood-plastic floor disclosed by the utility model is more environment-friendly, relatively low in comprehensive cost, and good in waterproofness, water resistance, stability, decoration and durability.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor paving materials, relates to a solid wood composite floor, and in particular to an EB-cured polypropylene film-faced composite wood-plastic floor. Background Art

[0002] Multi-layer solid wood composite flooring is a popular home decoration in the furniture and building materials industry. However, with the shortage of forest resources, natural solid wood surfaces with beautiful patterns are becoming increasingly scarce. How to effectively improve the comprehensive utilization rate of wood resources and alleviate the current tight supply of wood resources is a technical issue that needs to be studied and solved urgently. Wood-plastic composite materials have secondary processing properties, and the products made from them have beautiful appearances. They are one of the ideal substitutes for wood. They are also environmentally friendly materials that can be recycled repeatedly. The raw materials are cheap and abundant. They have good benefits in reducing environmental pollution and protecting forest resources, and have attracted the attention of many researchers.

[0003] Chinese patent CN112575983A discloses a free-to-assemble wood-plastic wallboard and its production process. The wood-plastic substrate body is coated with a PVC / EB film, and its upper surface is flat and the lower surface is wavy. The disclosed free-to-assemble wood-plastic wallboard uses wood-plastic as the substrate and is coated with a PVC / EB decorative transfer film. The overall surface is flat, and the left and right sides and the equally divided parts are solid structures, and the remaining parts are hollow solid structures. The post-molding processability is strong and the ductility is high. It is an environmentally friendly, practical and aesthetically pleasing wallboard product, and the production process is simple. Chinese patent CN207808670U discloses an electron-cured film multi-layer composite floor, which includes a UV paint film, an electron-cured film and a multi-layer substrate layer from top to bottom, wherein the multi-layer substrate layer is a plywood formed by criss-crossing and laminating fast-growing veneers, and the upper surface of the plywood is bonded with a polyvinyl alcohol adhesive to bond the electron-cured film. Chinese patent CN109537847A discloses an EB-cured polypropylene film-faced multi-layer composite floor and its production process, and discloses a multi-layer solid wood composite floor prepared from a multi-layer plywood substrate with an EB film-faced multi-layer. The multi-layer plywood substrate is coated with an EB-cured polypropylene film, and the tongue and groove are flat. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned prior art, the purpose of the utility model is to disclose a composite wood-plastic floor with EB-cured polypropylene film facing. The composite board formed by the wood-plastic substrate and the EB-cured polypropylene film can inherit the elegant and natural characteristics of the solid wood board. From the perspective of protecting forest resources, it is a substitute product for solid wood board and can effectively reduce the consumption of wood. It has good waterproofness, water resistance, stability, decorativeness, durability, etc.

[0005] Technical Solution

[0006] The invention discloses an EB-cured polypropylene film-faced composite wood-plastic floor, which comprises a surface decoration layer, a glue coating layer and a wood-plastic base material main layer from top to bottom, wherein the surface decoration layer of the floor has a thickness of 0.27±0.05 mm and is a single-layer or four-layer EB-cured polypropylene film; the main layer of the wood-plastic composite base material has a thickness of 10 to 18 mm and is a wood-plastic material formed by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers.

[0007] In the preferred disclosed examples of the utility model, the EB-cured polypropylene film is a single layer, the surface of which has a wood-like texture pattern, and the back has paint or a special plane or antique effect pattern, or the surface of which has a paint or a special plane or antique effect pattern, and the back has a wood-like texture pattern; because the polypropylene film is transparent, the wood texture and the paint effect pattern overlap.

[0008] In the preferred disclosed example of the utility model, the EB-cured polypropylene film has a total of four layers, among which, from top to bottom, there are the surface layer, which is a tough coating, a scratch-resistant, sunlight-resistant protective layer; the second layer, a transparent concave-convex layer with the high and low texture of the wood surface; the third layer, a printed layer with clear wood grain of the tree species; and the bottom layer, a base layer for coloring and fixing.

[0009] In the preferred disclosed example of the utility model, the surface decorative layer and the main layer of the wood-plastic substrate are bonded by a polyurethane resin adhesive layer, the thickness of the adhesive layer is 0.1-0.2 mm, and it is a polyurethane resin hot melt adhesive, which overcomes the problem that the film is prone to surface defects on the rough wood surface, and a lower coating amount can achieve better bonding strength.

[0010] In a preferred disclosed example of the utility model, the polyolefins in the main layer of the wood-plastic composite substrate are polyethylene, polypropylene or polyvinyl chloride.

[0011] In a preferred disclosed example of the utility model, the waste plant fibers in the main layer of the wood-plastic composite substrate are wood powder, rice husks, straws, etc.

[0012] In the preferred disclosed example of the utility model, the long end edge of the EB-cured polypropylene film-faced composite wood-plastic floor is tongue-and-groove, and the mortise and tenon structure is a lock connection.

[0013] The main body of the wood-plastic substrate has good processing performance, good strength performance, water resistance, corrosion resistance, long service life, excellent adjustable performance, and UV light stability; the biggest advantage is that it turns waste into treasure and can be 100% recycled and reproduced. It can be decomposed and will not cause "white pollution". It is a truly green and environmentally friendly product. The raw materials are widely available and can be made into any shape and size according to needs.

[0014] Beneficial Effects

[0015] The utility model discloses an EB-cured polypropylene film-faced composite wood-plastic floor, in which a polypropylene film having wood texture, antique effect and paint treatment effect cured by an Electron Beam process is attached to the surface of the wood-plastic floor, and the elegant and natural characteristics of solid wood boards can be inherited. From the perspective of protecting forest resources, it is a substitute product for solid wood boards, can effectively reduce the consumption of wood, solve the tense situation of shortage of forest resources and thus protect natural resources; compared with the existing composite floor, it is more environmentally friendly and has a relatively low comprehensive cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 . A schematic diagram of the structure of a composite wood-plastic flooring with an EB-cured polypropylene film finish, wherein: 1. a surface decorative layer, 2. a coating layer, 3. a main body layer of a wood-plastic substrate. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with embodiments so that those skilled in the art can better understand the present invention, but the present invention is not limited to the following embodiments.

[0018] Example 1

[0019] The invention discloses an EB-cured polypropylene film-faced composite wood-plastic floor, which comprises a surface decoration layer 1, a glue coating layer 2 and a wood-plastic base material main layer 3 from top to bottom, wherein the surface decoration layer 1 of the floor has a thickness of 0.27±0.05 mm and is a single-layer EB-cured polypropylene film, the surface of which has a wood-like texture pattern, and the back has a paint or a special plane or antique effect pattern, and the wood texture and the paint effect pattern are superimposed because the polypropylene film is transparent; the wood-plastic composite base material main layer 3 has a thickness of 10 to 18 mm and is a wood-plastic material made by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers.

[0020] Example 2

[0021] The invention discloses an EB-cured polypropylene film-faced composite wood-plastic floor, which comprises, from top to bottom, a surface decoration layer 1, a glue coating layer 2 and a wood-plastic base material main body layer 3, wherein the surface decoration layer 1 of the floor has a thickness of 0.27±0.05 mm and is a four-layer EB-cured polypropylene film, which comprises, from top to bottom, a surface layer, which is a tough coating, a scratch-proof and sunlight-resistant protective layer; a second layer, which is a transparent concave-convex layer with a sense of high and low texture of the wood surface; a third layer, which is a printing layer with clear wood grain of the tree species; and a bottom layer, which is a base layer for coloring and fixing; the wood-plastic composite base material main body layer 3 has a thickness of 10 to 18 mm and is a wood-plastic material made by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers.

[0022] Example 3

[0023] The invention discloses an EB-cured polypropylene film-faced composite wood-plastic floor, which comprises a surface decoration layer 1, a coating layer 2 and a wood-plastic substrate main layer 3 from top to bottom, wherein the surface decoration layer 1 of the floor is 0.27±0.05 mm thick and is a single-layer EB-cured polypropylene film, the surface of which has a paint or special plane or antique effect pattern, and the back has a wood-like texture pattern; the wood texture and the paint effect pattern are superimposed because the polypropylene film is transparent; the wood-plastic composite substrate main layer 3 is 10-18 mm thick and is a wood-plastic material made by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers; the surface decoration layer 1 and the wood-plastic substrate main layer 3 are bonded by a polyurethane resin adhesive layer, the coating layer 2 is 0.1-0.2 mm thick and is a polyurethane resin hot melt adhesive, which overcomes the problem that the film is prone to surface defects on a rough wood surface, and a lower coating amount can achieve better bonding strength.

[0024] Example 4

[0025] The invention discloses an EB-cured polypropylene film-faced composite wood-plastic floor, which comprises a surface decoration layer 1, a coating layer 2 and a wood-plastic substrate main body layer 3 from top to bottom, wherein the surface decoration layer 1 of the floor has a thickness of 0.27±0.05 mm and is a four-layer EB-cured polypropylene film, and comprises a surface layer from top to bottom, which is a hard coating, a scratch-proof and sunlight-resistant protective layer; a second layer, which is a transparent concave-convex layer with a sense of high and low texture on the wood surface; a third layer, which is a printing layer with clear wood grain of the tree species; and a bottom layer, which is a base layer for coloring and fixing; the wood-plastic composite substrate main body layer 3 has a thickness of 10 to 18 mm and is a wood-plastic material made by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers; the surface decoration layer 1 and the wood-plastic substrate main body layer 3 are bonded by a polyurethane resin adhesive layer, and the coating layer 2 has a thickness of 0.1 to 0.2 mm and is a polyurethane resin hot melt adhesive, which overcomes the problem that the film is prone to surface defects on the rough wood surface, and a lower coating amount can achieve better bonding strength.

[0026] Example 5

[0027] An EB-cured polypropylene film-faced composite wood-plastic floor comprises, from top to bottom, a surface decoration layer 1, a coating layer 2 and a wood-plastic substrate main body layer 3, wherein the surface decoration layer 1 of the floor is 0.27±0.05 mm thick and is a single-layer EB-cured polypropylene film, the surface of which has a paint or special flat or antique effect pattern, and the back has a wood-like texture pattern; the wood texture and the paint effect pattern are superimposed because the polypropylene film is transparent; the wood-plastic composite substrate main body layer 3 is 10 to 18 mm thick and is a polyolefin-based composite substrate with a thickness of more than 5 The surface decoration layer 1 and the main body layer 3 of the wood-plastic composite substrate are bonded by a polyurethane resin adhesive layer. The adhesive layer 2 has a thickness of 0.1 to 0.2 mm and is a polyurethane resin hot melt adhesive. It overcomes the problem that the film is prone to surface defects on the rough wood surface, and a lower coating amount can achieve better bonding strength. The polyolefins in the main body layer 3 of the wood-plastic composite substrate are polyethylene, polypropylene or polyvinyl chloride, etc., and the waste plant fibers in the main body layer 3 of the wood-plastic composite substrate are wood powder, rice husks, and straw.

[0028] Example 6

[0029] A composite wood-plastic floor with EB-cured polypropylene film facing, which comprises, from top to bottom, a surface decoration layer 1, a glue coating layer 2 and a wood-plastic base material main layer 3, wherein the surface decoration layer 1 of the floor has a thickness of 0.27±0.05 mm and is a four-layer EB-cured polypropylene film, which comprises, from top to bottom, a surface layer, which is a hard coating, a scratch-proof and sunlight-resistant protective layer; a second layer, a transparent concave-convex layer with a sense of high and low texture of the wood surface; a third layer, a printing layer with clear wood grain of the tree species; a bottom layer, which is a base layer for coloring and fixing; the thickness of the wood-plastic composite base material main layer 3 is 10 to 18 mm, is a wood-plastic material made by thermoplastic mixing of polyolefins and more than 50% of waste plant fibers; the surface decorative layer 1 and the main body layer 3 of the wood-plastic substrate are bonded by a polyurethane resin adhesive layer, the coating layer 2 has a thickness of 0.1-0.2 mm, and is a polyurethane resin hot melt adhesive, which overcomes the problem that the film is prone to surface defects on the rough wood surface, and a lower coating amount can achieve better bonding strength; the polyolefins in the main body layer 3 of the wood-plastic composite substrate are polyethylene, polypropylene or polyvinyl chloride, etc., and the waste plant fibers in the main body layer 3 of the wood-plastic composite substrate are wood powder, rice husks, straw, etc.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An EB-cured polypropylene film-faced composite wood-plastic floor, comprising, from top to bottom, a surface decorative layer (1), a rubber coating layer (2) and a wood-plastic substrate main layer (3), characterized in that: The surface decoration layer (1) has a thickness of 0.27±0.05 mm and is a four-layer EB-cured polypropylene film, which is a surface layer from top to bottom, a hard coating, a scratch-resistant and sunlight-resistant protective layer; The second layer is a transparent concave and convex layer with the high and low texture of the wood surface; the third layer is a printed layer with clear wood grain of the tree species; The bottom layer is a base layer used for coloring and fixing; the thickness of the main layer (3) of the wood-plastic composite substrate is 10 to 18 mm.

2. The EB-cured polypropylene film-faced composite wood-plastic flooring according to claim 1, characterized in that: The surface decoration layer (1) and the wood-plastic base material main body layer (3) are bonded via a polyurethane resin adhesive layer; the adhesive layer (2) has a thickness of 0.1 to 0.2 mm and is a polyurethane resin hot melt adhesive.

3. The EB-cured polypropylene film-faced composite wood-plastic flooring according to any one of claims 1-2, characterized in that: The long end edge of the floor is tongue-and-groove, and the mortise and tenon structure is lock-connected.

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