Thin blockboard and manufacturing method thereof

A technology for blockboard and poplar veneer, which is applied in the direction of manufacturing tools, wood-layered products, wood processing appliances, etc. Shelf life, insect repellant effect lasting effect

Active Publication Date: 2013-07-24
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of blockboards still use adhesives containing free formaldehyde. Although the products can meet the emission indicators stipulated in national standards, when the products are used in a large amount indoors, the pollution of the indoor environment by the formaldehyde released is still inevitable.
At present, the pollution of the living environment and the harm to people's health due to the extensive use of formaldehyde-containing blockboards have become an urgent problem to be solved.

Method used

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  • Thin blockboard and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Modified soybean gum configuration: Add 3g of alkali and 100g of water into a three-neck round bottom flask, the alkali is sodium hydroxide, stir for 3 minutes to dissolve the sodium hydroxide, then add 0.5g of silicate, 0.5 g sulfite and 0.2g modifier, the silicate is sodium silicate, the modifier is urea, the sulfite is sodium sulfite, and stirred for 3 minutes, the temperature is 80-96 °C to obtain a preliminary mixed solution; then add 15 g of soybean derivatives to the preliminary mixed solution, the soybean derivatives are soybean protein isolate, stir for 10 minutes, and the temperature is 80 °C, so that the soybean protein isolate is fully dispersed in the solution, Obtain a mixed solution; then add 0.3 g of an aqueous solution of curing agent polyamide polyamine-epichlorohydrin (PAE) with a mass concentration of 12.5%, and stir for 10 minutes to obtain a solidified mixed solution; then add an acid, the acid being 0.1 The mass concentration of phosphoric acid wa...

Embodiment 2

[0059] With embodiment 1, difference is that described alkali is calcium hydroxide; Described silicate is potassium silicate; Described acid is oxalic acid; Described pyrethroid insect repellant is fenvalerate and permethrin; The filler is flour; the soybean derivative is soybean protein powder.

Embodiment 3

[0061] With embodiment 1, difference is that described alkali is calcium hydroxide; Described silicate is sodium silicate; Described acid is oxalic acid; Described pyrethroid insect repellant is fenvalerate, bifenthrin and phenthrin; the filler is diatomaceous earth bentonite; the soybean derivative is soybean protein powder.

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Abstract

The invention relates to the field of thin blockboard manufacturing, in particular to a thin blockboard and a manufacturing method of the thin blockboard. The thin blockboard comprises a China fir core board layer in the middle, poplar single board layers which are respectively spliced on the upper surface of the China fir core board layer and the lower surface of the China fir core board layer, and Okoume single board layers which are respectively spliced on the outer surfaces of the poplar single board layers. Adjacent board layers are spliced according to the perpendicular direction of wood texture, and modified soya bean glue is adopted to splice adjacent board layers. The solid thin blockboard has high splicing strength and is low in formaldehyde release amount, and at the same time, has the advantages of being mould-proof, corrosion-proof, insect-proof and water-proof.

Description

technical field [0001] The invention relates to the field of blockboard preparation, in particular to a blockboard and a manufacturing method thereof. Background technique [0002] In recent years, due to the advantages of light weight, easy processing, good screw holding power, high strength, and no deformation, the blockboard has been widely used in furniture, doors, windows and covers, partitions, false walls, heating hoods, and curtain boxes. , is an ideal material for interior decoration and high-end furniture production. However, the vast majority of blockboards still use adhesives containing free formaldehyde. Although the products can meet the emission indicators stipulated in national standards, when the products are used in a large amount indoors, the pollution of the indoor environment by the formaldehyde released is still inevitable. . At present, the pollution to the living environment and the harm to people's health due to the extensive use of formaldehyde-co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D1/08B32B21/14B32B7/12B32B37/12B32B37/06B32B37/10C09J189/00C09J133/00
Inventor 沈金祥杨勇詹先旭刘元强王晓辉叶交友钱仁龙盛时雄王平
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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