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A kind of high-strength environment-friendly plywood and its manufacturing method

A manufacturing method and technology for plywood, which are applied in the direction of manufacturing tools, chemical instruments and methods, and wood-layered products, etc., can solve the problems of limited application of plywood materials, limited strength of plywood, and failure to meet strength requirements, and achieve small variability, Improved physical strength and high strength-to-weight ratio

Inactive Publication Date: 2021-05-25
广西经纬木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the continuous improvement of people's living standards, the application fields of plywood are becoming more and more extensive, but the strength of the plywood provided by the above patents and the prior art is limited, and it cannot meet the strength requirements of some building materials in the field of materials, which limits plywood. Further application of the material

Method used

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  • A kind of high-strength environment-friendly plywood and its manufacturing method
  • A kind of high-strength environment-friendly plywood and its manufacturing method
  • A kind of high-strength environment-friendly plywood and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of high-strength environment-friendly plywood and its manufacture method, its method operation is as follows:

[0031] Step 1, veneer surface pretreatment: clean the surface of the wood veneer, and then dry it until the water content is 5%. After completion, carry out coupling modification on the surface of the wood veneer. The coupling modifier includes: 90kg deionized water, 2.3kg of sodium hydroxide, 3.3kg of resorcinol and 3.8kg of formaldehyde, the coating amount of the coupling agent is 80g / m 2 , put it at room temperature for 10 hours after coating is complete;

[0032] Step 2, glue coating of fiber cloth: evenly coat the prepared adhesive on both sides of the fiber cloth of the reinforcing material, and the glue coating amount is 100g / m 2 , the fiber cloth is a modified fiber cloth;

[0033] Step 3, the preparation of plywood: glue the adhesive on both sides of the pretreated veneer at room temperature, and the amount of glue is 12 / m 2 , put together 3...

Embodiment 2

[0044] A kind of high-strength environment-friendly plywood and its manufacture method, its method operation is as follows:

[0045] Step 1, veneer surface pretreatment: clean the surface of the wood veneer, and then dry it until the water content is 8%. After completion, carry out coupling modification on the surface of the wood veneer. The coupling modifier includes: 94kg deionized water, 4.2kg of sodium hydroxide, 4.6kg of resorcinol and 5.2kg of formaldehyde, the coating amount of the coupling agent is 120g / m 2 , put it at room temperature for 15 hours after coating is complete;

[0046] Step 2, glue coating of fiber cloth: evenly coat the prepared adhesive on both sides of the fiber cloth of the reinforcing material, and the amount of glue applied is 140g / m 2 , the fiber cloth is a modified fiber cloth;

[0047] Step 3, preparation of plywood: glue the adhesive on both sides of the pretreated veneer at room temperature, and the amount of glue is 18 / m 2 , put together 3...

Embodiment 3

[0058] A kind of high-strength environment-friendly plywood and its manufacture method, its method operation is as follows:

[0059] Step 1, veneer surface pretreatment: clean the surface of the wood veneer, and then dry it until the water content is 10%. After completion, carry out coupling modification on the surface of the wood veneer. The coupling modifier includes: 95kg deionized water, 5.2kg of sodium hydroxide, 5.6kg of resorcinol and 7.2kg of formaldehyde, the coating amount of the coupling agent is 200g / m 2 , put it at room temperature for 20 hours after coating is complete;

[0060] Step 2, glue coating of fiber cloth: evenly coat the prepared adhesive on both sides of the fiber cloth of the reinforcing material, and the glue coating amount is 180g / m 2 , the fiber cloth is a modified fiber cloth;

[0061] Step 3, preparation of plywood: glue the adhesive on both sides of the pretreated veneer at room temperature, and the amount of glue is 22 / m 2 , put together 3 v...

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Abstract

The invention relates to the field of plywood preparation, in particular to a high-strength environment-friendly plywood and a manufacturing method thereof; including: veneer surface pretreatment, fiber cloth gluing and plywood preparation steps; the invention adds a layer of fiber in the middle of the composite board After modification, this kind of fiber cloth has excellent characteristics such as high strength-to-weight ratio, high temperature resistance, corrosion resistance, aging resistance, and fatigue resistance. It can effectively improve the physical strength of plywood, and not only maintain the excellent characteristics of the original materials, Complementary advantages can also be achieved, and the advantages of fiber cloth and wood materials can be fully utilized to improve the strength of plywood, forming a new type of high-strength plywood material with small variability, high strength-to-weight ratio, and aging resistance; the adhesive used in the present invention is The environmentally friendly adhesive does not contain free formaldehyde and has no formaldehyde release problem. It is a kind of plywood that can be safe and environmentally friendly. It can be safely used in home decoration, furniture manufacturing, load-bearing materials and other fields.

Description

technical field [0001] The invention relates to the field of plywood preparation, in particular to a high-strength environment-friendly plywood and a manufacturing method thereof. Background technique [0002] Plywood (including veneer plywood) can be used for interior decoration of doors and windows, and it can be used as the panel and back panel of tables and cabinets in furniture production; high-density fiberboard is widely used as laminate flooring substrate; medium-density fiberboard is used as furniture panels and side panels Board; Particleboard is used as interior wall panels, furniture panels, etc. The good economic and social benefits of producing wood-based panels have been widely recognized by the society. [0003] CN103009443A relates to a preparation method of lightweight plywood, the manufacturing process of which is material selection, pretreatment, health preservation, shaping and setting, gluing, billet assembly, pre-pressing, hot pressing, health preserv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/00B27D1/08D06C7/00D06B3/10D06B15/00D06M14/36D06M14/00B32B21/14B32B21/10B32B7/12B32B5/02B32B33/00
CPCB27D1/00B27D1/08B32B5/02B32B7/12B32B21/10B32B21/14B32B33/00B32B2260/021B32B2262/101B32B2262/106B32B2262/108B32B2307/306B32B2307/552B32B2307/714D06B3/10D06B15/00D06C7/00D06M14/00D06M14/36
Inventor 许月婷赵莉莉何志松
Owner 广西经纬木业有限公司
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