Fast-growing wood flame-retardant laminated board and production method thereof

A production method and technology of fast-growing wood, applied in the direction of layered products, wooden veneer joints, chemical instruments and methods, etc., can solve the problems of mechanical strength decline, difficulty in meeting requirements, and single performance of veneer laminated boards. Achieving the effects of less decrease in material properties, higher viscosity, and shorter soaking time

Active Publication Date: 2017-07-21
王伟宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of my country's laminated veneer panels is single, and it is difficult to meet the market's requirements for flame-retardant, high-performance laminated veneer panels. Although the usual flame-retardant treatment method makes the panels have flame retardancy, the mechanical strength decreases significantly.

Method used

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  • Fast-growing wood flame-retardant laminated board and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Poplar flame-retardant laminated board, including poplar flame-retardant core layer and its upper and lower flame-retardant reinforced surface layers, each material layer is hot-pressed and glued, and the poplar flame-retardant core layer is poplar veneer treated by impact impregnation with phosphorus-nitrogen flame retardants In the laminated board, the flame-retardant reinforced surface layer is a glass fiber cloth impregnated with a flame-retardant phenolic adhesive.

[0025] The production method of poplar fire-retardant laminated board comprises the following steps,

[0026] (1) Preparation of poplar fire retardant core layer

[0027] Select a poplar veneer with a thickness of 1.2-2.0mm and dry it until the moisture content is less than 5%; soak it in a phosphorus-nitrogen flame retardant at 40°C for 1 hour, the flame retardant is in a flowing state, and repeatedly impact the veneer. After treatment, dry it so that the moisture content is lower than 10%; then appl...

Embodiment 2

[0033] Poplar flame-retardant laminated board, including poplar flame-retardant core layer and upper and lower flame-retardant reinforced surface layers, each material layer is hot-pressed and glued, and the poplar flame-retardant core layer is poplar veneer layer impregnated with borate flame retardant The flame-retardant reinforced surface layer is a hemp fiber cloth impregnated with a flame-retardant melamine adhesive.

[0034] The production method of poplar fire-retardant laminated board comprises the following steps,

[0035] (1) Preparation of poplar fire retardant core layer

[0036] Select a poplar veneer with a thickness of 1.2-2.0mm, dry it until the moisture content is less than 5%; soak it in a borate flame retardant at 50°C for 3 hours, the flame retardant is in a flowing state, and repeatedly impact the veneer, After treatment, dry it so that the moisture content is lower than 10%; then apply melamine-modified urea-formaldehyde glue to the even-numbered veneers...

Embodiment 3

[0042] Eucalyptus flame-retardant laminated board, including eucalyptus flame-retardant core layer and its upper and lower flame-retardant reinforced surface layers, each material layer is hot-pressed and glued. The wood veneer laminated board, the flame retardant reinforced surface layer is hemp fiber cloth impregnated with phosphorus nitrogen series flame retardant phenolic adhesive.

[0043] The production method of eucalyptus fire-retardant laminated board comprises the following steps,

[0044] (1) Preparation of fire retardant core layer of eucalyptus

[0045] Select a eucalyptus veneer with a thickness of 1.2-2.0mm, dry it until the moisture content is less than 5%; soak it in a phosphorus-nitrogen series flame retardant at 60°C for 2 hours, the flame retardant is in a flowing state, and repeatedly impact the veneer, After treatment, dry it so that the moisture content is lower than 10%; then apply urea-formaldehyde glue to both sides of the even-numbered veneers, and ...

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Abstract

The present invention discloses a fast-growing wood flame-retardant laminated plate and a production method thereof. The fast-growing wood flame-retardant laminated plate comprises a fast-growing wood flame-retardant core layer and upper and low flame-retardant strengthening surface layers. Material layers are glued through hot pressing. The fast-growing wood flame-retardant core layer is a fast-growing wood single-plate laminated plate which is subjected to flame retardant impact immersion treatment. The flame-retardant strengthening surface layers are fiberglass cloths or hemp fiber cloths which are subjected to flame-retardant adhesive immersion treatment. The fast-growing wood flame-retardant laminated plate and the production method have the advantages that the core-layer plate is subjected to normal pressure shallow processing by using a dynamic impact mode, a soaking time is shortened, a wood property reduction risk is reduced, glass fibers or hemp fibers with excellent tension performance is placed on a composite structure surface layer, the overall mechanical performance of a composite material is improved, a flame-retardant adhesive is used to process a surface layer fiber material, thus the surface layer has effective flame-retardant performance, a flame-retardant high strength laminated plate is obtained, and wood losses are reduced.

Description

technical field [0001] The invention relates to the field of wood-based panel processing, in particular to a fast-growing wood flame-retardant laminate and a production method. Background technique [0002] The lack of forest resources in our country greatly limits the use of wood in construction and interior decoration, and the rational use of existing fast-growing wood is an urgent problem to be solved. Laminated veneer lumber is a new type of engineering wood material made of rotary-cut wood veneers after drying, gluing, forming along the grain, and pressing. Due to its stable performance, high strength, easy processing, and can replace large-diameter solid wood The use and other advantages are favored by the market. However, the performance of laminated veneer panels in my country is single, and it is difficult to meet the market's requirements for flame-retardant and high-performance laminated veneer panels. Although the usual flame-retardant treatment methods make the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B27D1/06B27D1/08B27K5/04B32B9/02B32B9/04B32B17/04
Inventor 王伟宏
Owner 王伟宏
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