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High-strength environment-friendly plywood and manufacturing method thereof

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

Inactive Publication Date: 2020-11-10
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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  • High-strength environment-friendly plywood and manufacturing method thereof
  • High-strength environment-friendly plywood and manufacturing method thereof
  • High-strength environment-friendly plywood and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-strength environmentally friendly plywood and a manufacturing method thereof, the method is as follows:

[0031] Step 1. Pretreatment of the surface of the veneer: clean the surface of the veneer, and then dry it to a moisture content of 5%. After completion, perform coupling modification on the surface of the veneer. The coupling modifier includes: 90kg Deionized water, 2.3kg sodium hydroxide, 3.3kg resorcinol and 3.8kg formaldehyde, the coating amount of coupling agent is 80g / m 2 , After the coating is completed, place it at room temperature for 10 hours, then it is enough;

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

[0033] Step 3: Preparation of plywood: glue the adhesive on both sides of the pre-treated veneer at room temperature, and the cloth glue amount is 12 / m 2 , Join 3 sheets of glued veneers and 2 sh...

Embodiment 2

[0044] A high-strength environmentally friendly plywood and a manufacturing method thereof, the method is as follows:

[0045] Step 1: Pretreatment of the surface of the veneer: clean the surface of the veneer, and then dry it to a moisture content of 8%. After completion, perform coupling modification on the surface of the veneer. The coupling modifier includes: 94kg Of deionized water, 4.2kg of sodium hydroxide, 4.6kg of resorcinol and 5.2kg of formaldehyde, the coating amount of coupling agent is 120g / m 2 , After the coating is completed, place it at room temperature for 15 hours, then it is enough

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

[0047] Step three, preparation of plywood: glue the adhesive on both sides of the pre-treated veneer at room temperature, the amount of cloth glue is 18 / m 2 , Join 3 sheets of ...

Embodiment 3

[0058] A high-strength environmentally friendly plywood and a manufacturing method thereof, the method is as follows:

[0059] Step 1. Pretreatment of the surface of the veneer: clean the surface of the veneer, and then dry it to a moisture content of 10%. After completion, perform coupling modification on the surface of the veneer. The coupling modifier includes: 95kg Of deionized water, 5.2kg of sodium hydroxide, 5.6kg of resorcinol and 7.2kg of formaldehyde, the coating amount of coupling agent is 200g / m 2 , After the coating is completed, place it at room temperature for 20 hours, then;

[0060] Step 2: Glue the fiber cloth: evenly coat the prepared adhesive on both sides of the fiber cloth of the reinforcing material, with a glue amount of 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 pre-treated veneer at room temperature, the amount of cloth glue is 22 / m 2 , Join 3 sheets of glued veneers a...

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Abstract

The invention relates to the field of plywood preparation, in particular to high-strength environment-friendly plywood and a manufacturing method thereof. The method comprises the steps of veneer surface pretreatment, fiber cloth gluing, plywood preparation and the like. A layer of fiber cloth is added in the middle of a composite board, the modified fiber cloth has the excellent characteristics of high strength-weight ratio, high temperature resistance, corrosion resistance, aging resistance, fatigue resistance and the like, the physical strength of the plywood can be effectively improved, the excellent characteristics of original materials can be kept, advantage complementation can be achieved, advantages of the fiber cloth and a wood material are comprehensively exerted, the strength ofthe plywood is improved, and a novel high-strength plywood material which is small in variability, high in strength-weight ratio and resistant to aging is formed. An adhesive adopted by the inventionis an environment-friendly adhesive, does not contain free formaldehyde, does not have the problem of formaldehyde release, is safe and environment-friendly plywood, and can be safely applied to thefields of home decoration, furniture manufacturing, bearing materials and the like.

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. It can be used as the front panel and back panel of tables and cabinets in furniture production; high-density fiberboard is used as a laminate floor substrate; medium-density fiberboard is used as furniture panel and side Board; particle board is used as indoor wallboard, furniture panel, etc. The good economic and social benefits of wood-based panels have been widely recognized by the society. [0003] CN103009443A relates to a method for preparing lightweight plywood, and its manufacturing process includes material selection, pretreatment, health preservation, molding and shaping, gluing, blank assembly, pre-pressing, hot pressing, health preservation, sanding, and subsequent treat...

Claims

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Application Information

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Patent Type & Authority Applications(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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