CN201502159U - A formaldehyde-free solid wood composite laminated floor - Google Patents

Abstract

A formaldehyde-free solid wood composite reinforced floor comprises: a layer of wood-plastic composite particle board base material board, a solid wood decorative veneer is covered on the upper surface of the wood-plastic composite particle board base material board, and a balance layer board is covered on the back of the wood-plastic composite particle board base board. The wood-plastic composite shaving substrate board is formed by laminating two layers of reinforced veneers and a wood-plastic composite shaving material layer interposed therebetween. It has no release of free formaldehyde, wide sources of raw materials, low manufacturing cost but high-grade finished products, and can replace the existing reinforced floor or solid wood composite floor.

Description

A formaldehyde-free solid wood composite laminated floor

technical field

The utility model relates to a formaldehyde-free solid wood composite reinforced floor.

Background technique

The production of parquet or laminate flooring by bonding wood veneers or wood fibers with adhesives has long been known and widely used. However, in the existing solid wood composite flooring, all wood veneers are used, the cost is relatively high, and the wood is greatly consumed.

In the existing reinforced flooring, the high-density fiberboard prepared by thermomechanical pulp fiber and adhesive is mainly used as the base material, and the surface is covered with surface layers such as melamine impregnated paper, and urea-formaldehyde adhesive is mainly used as the adhesive. The free formaldehyde in the product is easy to Volatile during production and product use, pollute the environment and affect human health.

my country is a large country with a large population. The leftovers from production, processing and life --- solid wood veneer and wood material scraps and recycled plastics and agricultural residues (agricultural residues refer to food crops, oil crops, cotton, hemp, etc.) residues of sugar crops such as cotton stalks, etc.) are considerable. How to turn waste into wealth and save energy has become the bounden duty of everyone. Therefore, it is urgent to develop a new market for its reuse.

The applicant has produced a wood-plastic composite shaving substrate board after research and development, which is a mixture of two layers of reinforced veneer and recycled plastic sandwiched therein with wood scraps and (or) branch wood or agricultural residues The board is obtained after hot pressing and cold pressing.

Contents of the invention

The purpose of the utility model is to provide a formaldehyde-free solid wood composite reinforced floor, which has no release of free formaldehyde, wide sources of raw materials, low manufacturing cost but high-grade finished products, and can replace the existing reinforced floor or solid wood composite floor.

In order to achieve the above object, the utility model takes the following design scheme:

A formaldehyde-free solid wood composite laminated floor, which includes: a layer of wood-plastic composite shaving base board, the upper surface of the wood-plastic composite shaving base board is covered with a solid wood decorative veneer, and the back is covered with a balance plywood.

The wood-plastic composite shaving substrate board is formed by laminating two layers of reinforced veneers and a wood-plastic composite shaving material layer interposed therebetween.

Using non-aldehyde adhesives, the solid wood decorative veneer is covered on the surface of the wood-plastic composite shaving base board, and the back of the wood-plastic composite shaving base board is covered with a balance layer at the same time, and the finished product is made into a finished product through the process of sanding and painting. floor.

The utility model is a formaldehyde-free solid wood composite reinforced floor, which is a formaldehyde-free solid wood composite reinforced floor made of solid wood veneers, recycled plastics, wood material scraps or agricultural residues (such as cotton stalks, etc.). The surface of the floor is a decorative surface layer of solid wood veneer, and the substrate strengthening layer is a wood-plastic composite shaving substrate board prepared from recycled plastics, wood scraps and (or) branch wood (or agricultural residues) prepared by the artificial board preparation process. Part of the raw materials of the floor are waste and recyclable plastics, wood material scraps, branch wood or agricultural residues, etc., and no formaldehyde-containing adhesives are used. It is a formaldehyde-free floor that is truly energy-saving, material-saving and environmentally friendly.

Compared with ordinary solid wood composite floor, the utility model has the following advantages:

(1) Use recycled plastics (especially colorful daily-use and food packaging bags that are difficult to be recycled) as raw materials to replace traditional urea-formaldehyde resin adhesives, solve the pollution of free formaldehyde in urea-formaldehyde resin adhesives, and also alleviate the impact of waste plastics on the environment of white pollution.

(2) The solid wood laminate flooring has the appearance and internal quality of solid wood composite flooring, but uses wood processing residues, twigs or agricultural residues as raw materials to replace a large number of wood veneers, saving wood resources and reducing costs. Good economic and environmental benefits.

(3) The base material of the floor is wood (or agricultural residues)/plastic composite board, and the solid wood veneer is glued with formaldehyde-free adhesive on the surface. The product does not use formaldehyde-containing adhesive, and no free formaldehyde is released. And ordinary solid wood composite flooring has free formaldehyde release.

(4) Developed a new product, the surface of the wood-plastic composite particleboard substrate is covered with solid wood veneer, which is a new product different from the plywood-type solid wood composite floor that is widely circulated in the market and the reinforced composite floor covered with wear-resistant paper .

(5) The static bending strength of the product can reach more than 45MPa, the elastic modulus can reach more than 6000MPa, the 24h water absorption rate is less than 10%, and the internal bonding strength is more than 1.0MPa. The performance of the product fully meets and exceeds the performance requirements of laminate flooring (impregnated paper laminated wood flooring), but there is no release of free formaldehyde.

Description of drawings

Fig. 1 is a structural schematic diagram (cross section) of the formaldehyde-free solid wood composite laminated floor of the present invention.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Detailed ways

Referring to Figure 1, the formaldehyde-free solid wood composite laminated floor of the present invention is composed of a wood-plastic composite particle base board 1 and a solid wood decorative veneer 2 on the upper surface, and the back of the wood-plastic composite particle board 1 is covered with a balance Laminate 3.

The wood-plastic composite shaving substrate board 1 is prepared from two layers of reinforced veneers 11 and a mixed layer 12 of recycled plastics and wood scraps or agricultural residues sandwiched between them, which are hot-pressed and then cold-pressed.

The recycled plastic in the wood-plastic composite shaving substrate board 1 is a combination of more than one material among recycled polyethylene, polypropylene, polyvinyl chloride and flat wire. Its composite bonding with the solid wood decorative veneer 2 on the upper surface and the back balance laminate 3 uses non-aldehyde adhesives (non-aldehyde room temperature curing adhesives are preferred), such as isocyanate-modified acrylic adhesives, phenolic adhesives, and the like.

The formaldehyde-free solid wood composite strengthened floor of the utility model is made of solid wood decorative veneer, wood-plastic composite shaving substrate board, and balanced laminate once or twice. One-time molding is to combine the surface solid wood decorative veneer with the back balance plywood and the middle wood-plastic composite shaving substrate board at the same time; the second molding is to prepare wood (or agricultural residue) shavings or rubbing silk and plastic. The wood-plastic composite particle base board is covered with solid wood decorative veneer and balanced plywood on the surface and back respectively.

The above-mentioned embodiments can be changed without departing from the scope of the present utility model, so the structures contained in the above description and shown in the accompanying drawings should be regarded as illustrative rather than limiting the protection of the utility model patent application scope.

Table 1 below is the comparison of the utility model formaldehyde-free solid wood composite reinforced floor (solid wood composite reinforced floor) with the existing reinforced floor (impregnated paper laminated wooden floor) and solid wood composite floor performance:

Table 1 The utility model product is compared with relevant standard performance

Standard Density (g/cm3) Static Bending Strength (MPa) Elastic modulus (MPa) 24h water absorption (%) Internal bonding strength (MPa) This utility model product 0.93 59.4 7426 9.4 1.06 impregnated paper laminated wooden floor GB/T18102-2007 ≥0.85 ≥35.0 -- ≤18% ≥1.0 Parquet GB/T18102-2007 -- ≥30.0 ≥4000 -- --

Note: "-" in the table indicates that the relevant standard does not have this test content.

In summary, the raw materials used not only come from a wide range of sources, but also are cheap, so that the cost of the produced product is low, and the finished product made by the utility model has excellent performance and becomes a high-grade product. Its cost performance is very good, and it is a good product in solid wood composite flooring, and it is worth promoting.

Claims (2)

1. formaldehyde-free solid wood consolidated compound floor is characterized in that including:

One deck wood-plastic composite particleboard backing material plate, the upper surface of moulding compound wood shavings backing material plate at wood is covered with the solid wood decorative veneer, at its back side coated with the balance laminate.

2. formaldehyde-free solid wood consolidated compound floor according to claim 1 is characterized in that: described wood is moulded compound wood shavings backing material plate and is moulded the pressing of compound wood shavings material layer by two-layer toughening fragil veneer and the middle wood that inserts and puts and form.