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Preparation process of high-strength heat-preservation and thermal-insulation plywood for building

A technology of thermal insulation and preparation technology, which is applied in other directions such as plywood/plywood appliances, manufacturing tools, and jointing of wooden veneers. Strength, the effect of improving the bonding strength

Inactive Publication Date: 2018-04-06
邳州市蚨瑞金木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the invention is the defect of insufficient compressive resistance of ordinary building plywood. The invention provides a preparation process of high-strength thermal insulation plywood for building

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation process for building high-strength thermal insulation plywood, comprising the following steps:

[0026] Step 1, wood pretreatment: after sawing the log, perform cooking, peeling and veneer peeling treatment, and dry it for use; this step is a prior art;

[0027] Step 2, prepare glue:

[0028] (1) Preparation of modified acrylic acid emulsion: by weight, get polybutylene terephthalate 5.0Kg, 3-hydroxyglutaric acid 1.0Kg, butyl acrylate 15.0Kg, acrylic acid 2.0Kg, methyl methacrylate Put 5.0Kg of ester, 3.0Kg of sodium dodecylbenzenesulfonate and 3.0Kg of glycerol into the reactor, add 18.0Kg of deionized water, then add 1.3Kg of cumene hydrogen peroxide, heat in a water bath at 782°C, and react After finishing, obtain modified acrylic emulsion;

[0029] (2) By weight, get modified acrylic emulsion, polyurethane resin 22.0Kg, methyl silicone oil 2.1Kg, aluminum silicate fiber 1.9Kg, barium sulfate 8.5Kg, wollastonite powder 3.5Kg and KH560 coupling agent 1...

Embodiment 2

[0035] A preparation process for building high-strength thermal insulation plywood, comprising the following steps:

[0036] Step 1, wood pretreatment: after sawing the log, perform cooking, peeling and veneer peeling treatment, and dry it for use; this step is a prior art;

[0037] Step 2, prepare glue:

[0038] (1) Preparation of modified acrylic acid emulsion: by weight, get polybutylene terephthalate 10.0Kg, 3-hydroxyglutaric acid 3.0Kg, butyl acrylate 30.0Kg, acrylic acid 5.0Kg, methyl methacrylate Put 12.0Kg of ester, 7.0Kg of polyacrylamide and 8.0Kg of glycerol into the reactor, add 26.0Kg of deionized water, then add 2.3Kg of diethylpropylbenzene peroxide, and heat in a water bath at 83°C. After the reaction, the modified non-toxic acrylic emulsion;

[0039] (2) By weight, get modified acrylic emulsion, polyurethane resin 22.0Kg, methyl silicone oil 2.1Kg, aluminum silicate fiber 1.9Kg, barium sulfate 8.5Kg, wollastonite powder 3.5Kg and KH560 coupling agent 10.5Kg,...

Embodiment 3

[0045] A preparation process for building high-strength thermal insulation plywood, comprising the following steps:

[0046] Step 1, wood pretreatment: after sawing the log, perform cooking, peeling and veneer peeling treatment, and dry it for use; this step is a prior art;

[0047] Step 2, prepare glue:

[0048] (1) Preparation of modified acrylic acid emulsion: by weight, get polybutylene terephthalate 8.0Kg, 3-hydroxyglutaric acid 2.2Kg, butyl acrylate 24.0Kg, acrylic acid 3.0Kg, methyl methacrylate Put 11.0Kg of ester, 4.5.Kg of sodium dodecylbenzenesulfonate and 7.0Kg of glycerol into the reactor, add 23.0Kg of deionized water, then add 1.8Kg of cumene hydroperoxide, and heat in a water bath at 82°C. After the reaction finishes, the modified acrylic acid emulsion is obtained;

[0049] (2) By weight, get modified acrylic emulsion, polyurethane resin 15.0Kg, methyl silicone oil 1.5Kg, aluminum silicate fiber 1.5Kg, barium sulfate 5.0Kg, wollastonite powder 2.0Kg and KH560...

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PUM

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Abstract

The invention discloses a preparation process of high-strength thermal insulation plywood for construction, which belongs to the technical field of plywood. The first step is wood pretreatment: after the log is sawed, it is subjected to steaming, peeling and veneer rotary cutting, and it is dried for use ; Step 2, preparation of gluing: Step 3, gluing treatment: place the veneer on a double-roller gluing machine for gluing treatment; Step 4, billet processing: lay the veneer evenly in layers ; Step 5, heat-pressing treatment: pre-press the assembled billet first and then heat-press to form a raw board; Step 6, trimming and trimming. The preparation process of high-strength thermal insulation plywood for construction provided by the present invention uses modified acrylic resin and polyurethane resin as the main adhesive to further improve its bonding strength, ensure the overall strength of the plywood, and have a relatively ideal thermal insulation Thermal performance, very suitable as a high-strength thermal insulation plywood material for construction.

Description

technical field [0001] The invention discloses a preparation process of a high-strength thermal insulation plywood for construction, and belongs to the technical field of plywood materials. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other. [0003] Plywood is one of the commonly used materials for furniture, and it is one of the three major boards of wood-based panels. It can also be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. A group of veneers are usually assembled and glued together according to the direction of the wood grain of adjacent layers perpendicular to each other. Usually, the surface board and inner layer board are symmetrically arra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27D5/00B32B37/10B32B37/06B32B37/12C09J151/08C09J175/04C09J11/04C09J11/06C09J11/08
CPCB27D1/08B27D5/00B32B37/06B32B37/10B32B37/12C08K2003/3045C08L2205/03C09J11/04C09J11/06C09J11/08C09J151/08C09J175/04C08L75/04C08L83/04C08K13/04C08K7/08C08K3/30C08K3/34C08L51/08
Inventor 黄继刚
Owner 邳州市蚨瑞金木业有限公司
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