CN2774769Y - Decorative wooden board of bamboo-wood composite structure - Google Patents

Abstract

The utility model relates to a decorative wooden board with a composite structure of bamboo and wood. It consists of upper and lower bamboo jigsaw panels, a solid wood jigsaw panel and a resin layer between the panels. Layer bonding, and the butt ends of each bamboo strip in the length direction are also bonded with a resin layer. Similarly, the solid wood panel is formed by splicing and butt jointing of multiple solid wood strips. Bonding, and the butt ends of each solid wood strip in the length direction are also bonded with a resin layer. Therefore, the bending strength reaches above 5MPa, and no free formaldehyde is released during use, which will not pollute the indoor air.

Description

Decorative wooden panels of bamboo and wood composite structure

technical field

The utility model relates to a decorative wooden board with a composite structure of bamboo and wood.

Background technique

As we all know, bamboo is the second largest forest resource in my country. Bamboo grows fast, has good physical and mechanical properties, and elegant and beautiful texture. Boards and other decorative materials processed from bamboo have been widely used in the field of building decoration. On the other hand, my country's forest resources are becoming less and less, and it has gradually transitioned to a large number of fast-growing and high-yield forest timber resources. Although fast-growing and high-yield forest timber has the characteristics of fast growth, its material is poor. Therefore, the development of bamboo-wood composite products and the use of the respective characteristics of bamboo and wood to make them have higher added value and wider range of use have become a hot spot in product development and application.

At present, the main bamboo-wood composite products mainly include the following categories: one is to use small-diameter bamboo as the main raw material, crush it and apply adhesive as the core layer, and use wood veneer as the surface layer to form bamboo-wood composite products. The target product is used for cement formwork in construction projects; the second category uses bamboo spliced veneer as the surface board, wood veneer or solid wood strips as the core board, and is used after gluing according to the staggered direction of the grain, mainly flooring products; the third category It is a bamboo-wood composite container floor product produced with bamboo mats or bamboo curtains as the surface board and wood veneer as the core board. The above-mentioned bamboo-wood composite products mainly emphasize the characteristics of bamboo as a reinforcing material or as a special decorative material, without organically combining the characteristics of decorative materials and structural materials.

Contents of the invention

The purpose of this utility model is to provide a decorative wooden board with a composite structure of bamboo and wood. The upper and lower bamboo boards and a solid wood board in the middle are bonded (sprayed) with a resin layer, and each bamboo board is assembled The splicing or butt jointing of boards and solid wood panels themselves is also bonded with resin layers, thus forming a decorative wooden board with the characteristics of both structural materials and decorative materials.

The utility model provides a decorative wooden board with a bamboo-wood composite structure, which is composed of upper and lower bamboo boards, a solid wood board and a resin layer bonded between the boards. The splicing sides of each bamboo strip are bonded with a resin layer, and the butt ends of each bamboo strip in the length direction are also bonded with a resin layer. Similarly, the solid wood panel is made of multiple solid wood strips spliced and It is formed by butt jointing, wherein the splicing sides of each solid wood strip are bonded with a resin layer, and the butt ends of each solid wood strip in the length direction are also bonded with a resin layer.

The utility model provides a decorative wooden board with a composite structure of bamboo and wood. The above-mentioned bamboo board is multi-layered, and a resin layer is interposed between each layer for bonding. The above-mentioned solid wood board is multi-layered, and between each layer Adhesive with a resin layer between them.

The utility model provides a decorative wooden board with a bamboo-wood composite structure. The above-mentioned resin layer is urea-formaldehyde resin, or a two-component adhesive for glued timber, or isocyanate resin, or melamine-modified urea-formaldehyde resin.

The bending strength of the utility model reaches more than 5 MPa. In addition, the plates glued by this method do not release free formaldehyde during use, and do not pollute the indoor air.

Description of drawings

Fig. 1 cross-sectional view of the utility model.

Fig. 2 is the schematic diagram of the plane of bamboo puzzle or solid wood puzzle of the utility model.

Fig. 3 is a schematic diagram of the termination of the butt joint of the utility model.

Fig. 4 is a schematic diagram of the finger joint of the butt joint end of the utility model.

Detailed ways

The utility model is made up of two bamboo boards 1, a solid wood board 2 and a resin layer 3 between the bonding boards, as shown in Figures 1 and 2, wherein:

Bamboo panel 1 is formed by splicing and butting a plurality of bamboo strips 11, wherein the splicing side surfaces 111 of each bamboo strip 11 are bonded with resin layer 3, and the butt ends 112 in the length direction of each bamboo strip 11 are also bonded with resin layer 3 Bonding, the above-mentioned butt joint 112 may be a terminal joint or a finger joint, as shown in FIGS. 3 and 4 . The bamboo jigsaw board 1 is used as the upper and lower surface boards, and the thickness range of the bamboo strips 11 is 2mm-5mm; the width range is 10mm-30mm; the length range is not limited. Adopt this bamboo strip 11 to splice the bamboo jigsaw 1 of arbitrary length and width, and its bamboo jigsaw 1 can be multi-layer (also spraying resin layer 3 between multi-layers), and its texture is to glue along grain direction.

The solid wood panel 2 is formed by splicing and butting a plurality of solid wood strips 21, wherein the splicing sides 211 of each solid wood strip 21 are bonded with a resin layer 3, and the butt ends 212 in the length direction of each solid wood strip 21 are also bonded with a resin layer. 3 Bonding, the above-mentioned butt joint 212 may be a terminal joint or a finger joint, as shown in FIGS. 3 and 4 . The bamboo jigsaw board is used as a core board, and the thickness range of the solid wood strip 21 is 2mm-30mm; the width range is 20mm-40mm; the length range is not limited. Adopt this kind of solid wood bar 21 to splice any length and width solid wood panel 2, in fact wood panel 2 also can be multi-layer (also spraying resin layer 3 between multi-layer), and texture is to glue along grain direction.

The two bamboo panels 1 are respectively used as the upper and lower panels, and the solid wood panel 2 is used as the core board, and the resin layer 3 is bonded between the bamboo panel 1 and the solid wood panel 2. The resin layer 3 can be urea-formaldehyde resin, Glulam uses two-component adhesives, isocyanate resins or melamine-modified urea-formaldehyde resins, and the resin layer can be sprayed or painted.

All the glued layers are composed of bamboo boards and wooden boards along the direction of the grain, and are glued by hot pressing to form a light-weight structural board. This kind of board not only has the performance index of structural materials, but also has the characteristics of decorative materials, and can be widely used in architectural decoration and structural materials.

The utility model can be that the bending strength of the bamboo-wood composite material reaches more than 5MPa, and the bonding strength of the glued boards by this method can reach the requirements of the national standard GB50206-2002 of "glued wood structure" and the standard of outdoor structural plywood. , The boards glued by this method will not release free formaldehyde during use, and will not pollute the indoor air.

Claims (3)

1, a kind of decorative wooden board of bamboo-wood composite structure, it is characterized in that, by upper and lower two bamboo boards, a solid wood board and the resin layer bonding between each board, this bamboo board is made of a plurality of Bamboo strips are connected, wherein the splicing sides of each bamboo strip are bonded with a resin layer, and the butt ends of each bamboo strip in the length direction are also bonded with a resin layer. Similarly, the solid wood panel is spliced by multiple solid wood strips and butt joint, wherein the splicing sides of each solid wood strip are bonded with a resin layer, and the butt ends of each solid wood strip in the length direction are also bonded with a resin layer. 2. A decorative wooden board with a bamboo-wood composite structure according to claim 1, characterized in that the above-mentioned bamboo board is multi-layered, and a resin layer is interposed between each layer for bonding, and the above-mentioned solid wood board is There are multiple layers, and a resin layer is interposed between each layer for bonding. 3. A decorative wooden board with a bamboo-wood composite structure according to claim 1, characterized in that the above-mentioned resin layer is urea-formaldehyde resin, or two-component adhesive for glulam, or isocyanate resin, or melamine Modified urea-formaldehyde resin.

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