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A kind of preparation method of environment-friendly, moisture-proof and moth-proof bamboo-wood composite board

A bamboo-wood composite and board technology, used in wood processing appliances, wood veneer bonding, manufacturing tools, etc., can solve the problems of low internal bonding strength and rigidity, and achieve improved bonding performance, good coating performance, Good mechanical properties

Active Publication Date: 2019-04-26
GUIZHOU TOPSEAT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiberboard has high static bending strength, compact section, and smooth surface, but its internal bonding strength and stiffness are low. How to combine the two, maximize strengths and avoid weaknesses, and obtain bamboo-wood composite boards with excellent performance is the key

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing an environment-friendly, moisture-proof and moth-proof bamboo-wood composite board, comprising the following steps:

[0030] The bamboo strips are dried, glued, hot pressed, cooled, and cut in sequence to obtain a panel;

[0031] The selected wood is crushed and dried, and the wood core board is obtained through sizing, hot pressing, cooling and cutting in sequence;

[0032] Add gelatin solution with a mass concentration of 10% into a reaction kettle equipped with a condensing device, add nitrous acid, stir at 0°C for 60 minutes, and vacuumize for 20 minutes; add acrylic monomer mixture, mix well, and then add 30% mass concentration Sodium hydroxide solution to adjust its pH to 6.5-7.0, stirring at a speed of 100r / min to raise the temperature to 85°C, dropwise add potassium persulfate solution with a mass concentration of 10%, and complete the dropwise addition in 1 hour; the dropwise addition of potassium persulfate solution is completed Then he...

Embodiment 2

[0037] A method for preparing an environment-friendly, moisture-proof and moth-proof bamboo-wood composite board, comprising the following steps:

[0038] The bamboo strips are dried, glued, hot pressed, cooled, and cut in sequence to obtain a panel;

[0039] The selected wood is crushed and dried, and the wood core board is obtained through sizing, hot pressing, cooling and cutting in sequence;

[0040] Add the gelatin solution with a mass concentration of 15% into a reaction kettle equipped with a condensing device, add nitrous acid, stir at 5°C for 40 minutes, and vacuumize for 20 minutes; add the acrylic monomer mixture, mix well, and then add Sodium hydroxide solution adjusts its pH to 6.5-7.0, stirs at a speed of 120r / min and heats up to 75°C, adds dropwise potassium persulfate solution with a mass concentration of 10%, and completes the dropwise addition in 3 hours; the dropwise addition of potassium persulfate solution is completed Then heat up to 92°C, stop heating a...

Embodiment 3

[0045] A method for preparing an environment-friendly, moisture-proof and moth-proof bamboo-wood composite board, comprising the following steps:

[0046] The bamboo strips are dried, glued, hot pressed, cooled, and cut in sequence to obtain a panel;

[0047] The selected wood is crushed and dried, and the wood core board is obtained through sizing, hot pressing, cooling and cutting in sequence;

[0048] Add the gelatin solution with a mass concentration of 11% into a reaction kettle equipped with a condensing device, add nitrous acid, stir at 1°C for 55 minutes, and vacuumize for 20 minutes; add the acrylic monomer mixture, mix well, and then add Sodium hydroxide solution adjusts its pH to 6.5-7.0, stirs at a rotating speed of 105r / min and heats up to 80°C, drops potassium persulfate solution with a mass concentration of 10%, and completes the dropwise addition in 1.5h; potassium persulfate solution is added dropwise After completion, heat up to 90°C, stop heating after 1.1h...

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Abstract

The invention discloses a manufacturing method of an environment-friendly moisture-proof and mothproof bamboo-wood composite board. The manufacturing method comprises the following steps: first, manufacturing surface plates by using bamboo splits; then, selecting wood materials to manufacture a wood core plate; preparing an adhesive; and finally sequentially laminating the surface plate, the adhesive, the wood core plate, the adhesive and the surface plate, carrying out hot pressing and cooling to obtain a bamboo-wood composite board blank, sequentially coating the outer surfaces of the upper and lower surface plates of the bamboo-wood composite board blank by spraying a priming paint and a protective paint layer and carrying out drying to obtain the moisture-proof and mothproof bamboo-wood composite board. The manufactured composite board has excellent mechanical properties and great moisture-proof and mothproof properties and is environment-friendly and nontoxic.

Description

Technical field: [0001] The invention relates to the field of building boards, in particular to a preparation method of an environment-friendly, moisture-proof and moth-proof bamboo-wood composite board. Background technique: [0002] According to statistics, there are more than 70 genera and more than 1,200 species of bamboo plants in the world, and there are more than 40 genera and more than 400 species of bamboo in my country. Bamboo forest area 3.4 million hm 2 , the bamboo stock volume is more than 70 million tons, and the annual output is more than 5 million tons. The bamboo resources are quite rich. Bamboo can be densely planted, easy to afforest, easy to manage, and grows fast. Bamboo is tough and elastic, with slender fibers, and its tensile strength along the grain is 1-2 times higher than that of ordinary wood. It can withstand bending and eccentric pressure. It is light in weight, water-resistant, acid and alkali corrosion-resistant, and can be widely used in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/08B27D1/04B27J1/00B27N3/10C09J151/00C08F289/00C08F220/14C08F220/58C09D133/00C09D175/04
CPCB27D1/04B27D1/08B27J1/00B27N3/10C08F289/00C08L2205/035C08L2205/16C09D7/61C09D7/63C09D7/65C09D7/70C09D133/00C09D175/04C09J151/00C08F220/14C08F220/58C08L5/04C08K13/02C08K5/098C08K2003/265C08K5/053C08L1/286C08L93/04C08L23/12C08L91/06C08L5/16
Inventor 王静
Owner GUIZHOU TOPSEAT TECH CO LTD