Environment-friendly formaldehyde-free flame-retardant plywood and preparation process thereof

A kind of plywood, environment-friendly technology, applied in the field of plywood, can solve the problems that affect the use of plywood, poor flame retardant effect, etc., to achieve the effect of improving the connection effect, improving the stability effect, and avoiding the effect of glue opening

Active Publication Date: 2022-01-28
TAOJIANG HONGSEN WOOD IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an environmentally friendly formaldehyde-free flame-retardant plywood and its preparation process, which solves the problem of filling the plywood with flame-retardant materials The formation of interlayer, the flame retardant effect is not good, which affects the use of plywood

Method used

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  • Environment-friendly formaldehyde-free flame-retardant plywood and preparation process thereof
  • Environment-friendly formaldehyde-free flame-retardant plywood and preparation process thereof
  • Environment-friendly formaldehyde-free flame-retardant plywood and preparation process thereof

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Such as Figure 1-3 As shown, an environmentally friendly formaldehyde-free flame-retardant plywood, comprising a lower wooden veneer 1, a plywood layer 2 is arranged on the top of the lower wooden veneer 1, and an upper wooden veneer 3 is arranged on the top of the plywood layer 2, so The top of the upper wooden veneer 3 is provided with an outer film aluminum foil layer 4, and an adhesive film layer 5 is sprayed between the plywood layer 2 and the low...

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Abstract

The invention relates to the technical field of plywood, and discloses environment-friendly formaldehyde-free flame-retardant plywood, which comprises a lower-layer wood veneer, wherein a plywood layer is arranged at the top of the lower-layer wood veneer, an upper-layer wood veneer is arranged at the top of the plywood layer, an outer film aluminum foil layer is arranged at the top of the upper-layer wood veneer, adhesive film layers are sprayed between the plywood layer and the lower-layer wood veneer and between the plywood layer and the upper-layer wood veneer, filler grids are uniformly distributed in the plywood layer, and fireproof film bags are adhered to the inner walls of the filler grids. According to the invention, fireproof film bags are attached to the inner side of filler grids on a plywood layer, the filler grids are filled with gluing filler blocks to form a plywood interlayer, when the plywood is burned, the fireproof film bags are damaged, fire-fighting dust blocks are thermally decomposed to generate fire-fighting dust, and pressure bubble particles on the surface of the fireproof film bags explode, so that the dust is dispersed, open fire on the plywood is extinguished, and the flame retardant effect of the plywood is improved.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to an environment-friendly formaldehyde-free flame-retardant plywood and a preparation process thereof. Background technique [0002] Formaldehyde-free plywood refers to the plywood produced by using adhesives without adding formaldehyde. The detection value of formaldehyde emission is equivalent to the formaldehyde content of natural wood. This product is different from the traditional blockboard, which uses three-aldehyde glue, including urea-formaldehyde, phenolic, and melamine-modified formaldehyde resin glue, to produce formaldehyde-containing plywood. A three-layer or multi-layer board-like material that is sliced ​​into thin wood and glued with an adhesive, usually with an odd number of veneers, and made by gluing the fiber directions of adjacent veneers perpendicular to each other. The plywood produced with wood as the main raw material, due to the rationality of its struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27M1/04B27M1/02B27M3/00B32B21/14B32B21/04B32B15/20B32B15/10B32B7/12B32B3/08B32B37/12B32B37/06B32B37/10A62C35/10
CPCB27D1/04B27M1/04B27M1/02B27M3/0073B27M3/0086B32B21/14B32B21/042B32B15/20B32B15/10B32B7/12B32B3/08B32B37/1284B32B37/06B32B37/10A62C35/10B32B2307/3065
Inventor 李泽云
Owner TAOJIANG HONGSEN WOOD IND
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