A preparation method of bamboo powder reinforced laminated veneer lumber for doors

A technology of laminated veneer and bamboo powder, which is applied in the joining of wooden veneers, manufacturing tools, wood impregnation, etc., can solve the problems of reducing the strength of laminated veneer, and achieve the improvement of internal bonding strength and continuous improvement. the effect of enhancing the resistance to blisters

Active Publication Date: 2021-07-27
MAANSHAN GUQING DOOR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional sawn timber, LVL has relatively stable mechanical properties, uniform structure, high strength, and small deformation. However, since veneers are mostly made of fast-growing wood with poor mechanical properties, it may reduce the The strength of lumber

Method used

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  • A preparation method of bamboo powder reinforced laminated veneer lumber for doors
  • A preparation method of bamboo powder reinforced laminated veneer lumber for doors

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A preparation method of bamboo powder reinforced laminated veneer lumber for doors, comprising the following steps:

[0027] (1) Modification of bamboo powder

[0028] Bamboo powder, aluminum sol, alumina powder are added in the mixer according to the mass ratio of 30:7:20 after stirring at a high speed of 600r / min for 30min, obtain modified bamboo powder, the average particle size of bamboo powder is 50 orders, The average particle size of alumina is 100 mesh, and the solid content of aluminum sol is 15%;

[0029] (2) Preparation of solid wood impregnation solution

[0030] After mixing and stirring the urea-formaldehyde resin adhesive and disodium sebacate according to the ratio of 10:1 in mass ratio, a solid wood impregnating solution is obtained, wherein the solid content of the urea-formaldehyde resin adhesive is 18%;

[0031] (3) Solid wood dipped in glue

[0032] Add the solid wood impregnation solution into the impregnation treatment tank, then place the soli...

Embodiment 2

[0036] A preparation method of bamboo powder reinforced laminated veneer lumber for doors, comprising the following steps:

[0037] (1) Modification of bamboo powder

[0038] Bamboo powder, aluminum sol, aluminum oxide powder are added in the mixer according to the mass ratio of 35:7:20 after 35min with the rotating speed of 650r / min high-speed stirring, obtain modified bamboo powder, the average particle size of bamboo powder is 55 orders, The average particle size of alumina is 130 mesh, and the solid content of aluminum sol is 18%;

[0039] (2) Preparation of solid wood impregnation solution

[0040] After mixing and stirring the urea-formaldehyde resin adhesive and disodium sebacate according to the ratio of 13:1 in mass ratio, a solid wood impregnating solution is obtained, wherein the solid content of the urea-formaldehyde resin adhesive is 20%;

[0041] (3) Solid wood dipped in glue

[0042] Add the solid wood impregnation solution into the impregnation treatment tan...

Embodiment 3

[0046] A preparation method of bamboo powder reinforced laminated veneer lumber for doors, comprising the following steps:

[0047] (1) Modification of bamboo powder

[0048] Bamboo powder, aluminum sol, aluminum oxide powder are added in the mixer according to the mass ratio of 40:7:20 after stirring at a high speed of 700r / min for 40min, obtain modified bamboo powder, the average particle size of bamboo powder is 60 orders, The average particle size of alumina is 150 mesh, and the solid content of aluminum sol is 20%;

[0049] (2) Preparation of solid wood impregnation solution

[0050] After mixing and stirring the urea-formaldehyde resin adhesive and disodium sebacic acid according to the ratio of 15:1 in mass ratio, a solid wood impregnation solution is obtained, wherein the solid content of the urea-formaldehyde resin adhesive is 22%;

[0051] (3) Solid wood dipped in glue

[0052] Add the solid wood impregnation solution into the impregnation treatment tank, then pla...

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Abstract

The invention discloses a preparation method of bamboo powder-reinforced laminated veneer lumber for doors, which comprises the following steps: (1) adding bamboo powder, aluminum sol, and alumina powder into a mixer and stirring evenly at high speed to obtain modified bamboo powder; (2) Mix and stir the urea-formaldehyde resin adhesive and disodium sebacate evenly to obtain a solid wood impregnation liquid; (3) add the solid wood impregnation liquid into the impregnation treatment tank, and then place the solid wood veneer strips in the impregnation treatment tank , after airtight pressurization and pressure-holding treatment, the solid wood veneer strips after dipping are obtained; (4) the modified bamboo powder is evenly sprayed on the upper and lower surfaces of the solid wood veneer strips after dipping, and they are assembled in parallel. High-temperature press heat treatment to obtain bamboo powder-reinforced laminated veneer lumber for doors. The invention fills the interior of the laminated veneer lumber with modified bamboo powder, which effectively enhances various mechanical properties of the laminated veneer lumber, and at the same time enhances the blister resistance of the laminated veneer lumber to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of wooden door material preparation, and in particular relates to a preparation method of bamboo powder reinforced veneer laminated wood for doors. Background technique [0002] Laminated veneer lumber is a new type of wood composite material. After the veneer is peeled and dried, it is glued with an adhesive, and the treated veneer is assembled along the grain of the wood, and finally the product is produced by hot pressing. Compared with traditional sawn timber, LVL has relatively stable mechanical properties, uniform structure, high strength, and small deformation. However, since veneers are mostly made of fast-growing wood with poor mechanical properties, it may reduce the The strength of the lumber. Therefore, it is necessary to strengthen the laminated veneer lumber to meet the requirements of structural materials. Contents of the invention [0003] The purpose of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/08B27K3/08B27K3/50C09J161/24C09J11/06
CPCB27D1/08B27K3/08B27K3/50C09J11/06C09J161/24C08K5/092
Inventor 谷庆
Owner MAANSHAN GUQING DOOR IND
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