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Oriented strand board composite decorative board and manufacturing method

A technology of oriented particle board and decorative board, which is applied in special decorative structures, decorative arts, flat products, etc., can solve the problem of high release of free formaldehyde, and achieve the effect of promoting the living environment, not easy to delaminate, and beautiful in style

Inactive Publication Date: 2016-09-28
NINGBO ZHONGJIA LOW CARBON NEW TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the decorative panels in the domestic market are produced with urea-formaldehyde adhesives, which release high free formaldehyde, and the environmental protection level is generally below E1.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An oriented strand board composite decorative board, comprising a substrate layer and a veneer layer, the veneer layer is bonded to one or both sides of the substrate layer by an formaldehyde-free adhesive, and the substrate layer is made of wood long shavings Or wheat straw long shavings as raw materials, oriented strand board with isocyanate resin and / or phenolic resin as adhesive. Specifically, the above-mentioned formaldehyde-free adhesive is a mixture of isocyanate and polyvinyl acetate in a weight ratio of 15% and 85%, and the amount of glue applied is 200g / m 2 ; Decorative paper fireproof board with a veneer layer of 1 mm; the vertical density of the above-mentioned oriented strand board is 800±100g / m 3 .

[0025] The manufacture method of above-mentioned oriented strand board composite decorative board is as follows:

[0026] The long strips of poplar wood shavings are uniformly mixed with isocyanate resin and / or phenolic resin adhesive in the way of spray glu...

Embodiment 2

[0029] An oriented strand board composite decorative board, comprising a substrate layer and a veneer layer, the veneer layer is bonded to one or both sides of the substrate layer by an formaldehyde-free adhesive, and the substrate layer is made of wood shavings or wheat straw Oriented strand board with shavings as raw material and isocyanate resin and / or phenolic resin as adhesive. Specifically, the above-mentioned formaldehyde-free adhesive is a mixture of isocyanate and polyvinyl acetate in a weight ratio of 15% and 85%, and the amount of glue applied is 200-250g / m 2 ; The veneer layer is 0.5mm decorative paper fireproof board; the vertical density of the above-mentioned oriented strand board is 750±100g / m 3 .

[0030] The manufacture method of above-mentioned oriented strand board composite decorative board is as follows:

[0031] The long shavings of wheat straw were uniformly mixed with MDI resin adhesive in the way of glue spraying and mixing, and the 11mm thick orien...

Embodiment 3

[0034] An oriented strand board composite decorative board, comprising a substrate layer and a veneer layer, the veneer layer is bonded to one or both sides of the substrate layer by an formaldehyde-free adhesive, and the substrate layer is made of wood shavings or wheat straw Oriented strand board with shavings as raw material and isocyanate resin and / or phenolic resin as adhesive. Specifically, the above-mentioned formaldehyde-free adhesive is a mixture of isocyanate and polyvinyl acetate in a weight ratio of 15% and 85%, and its coating amount is 180g / m 2 ; The veneer layer is 0.5-1mm decorative paper fireproof board and 0.1-1mm decorative non-woven fabric or fabric wall covering or PVC; the vertical density of the above-mentioned oriented strand board is 650±100g / m 3 . .

[0035] The manufacture method of above-mentioned oriented strand board composite decorative board is as follows:

[0036] The long strips of poplar wood shavings were evenly mixed with phenolic resin ...

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PUM

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Abstract

The invention provides an oriented strand board composite decorative board which comprises a substrate layer and an overlaying layer or overlaying layers, wherein the overlaying layer or overlaying layers is / are glued at the single side or double sides of the substrate layer through a formaldehyde-free adhesive, and the substrate layer is an oriented strand board taking wood or wheat straw shavings as the raw material and taking isocyanate resin and / or phenolic resin as the adhesives or the adhesive. A manufacturing method of the oriented strand board composite decorative board comprises the following steps that by taking the wood or wheat straw shavings as the raw material and taking isocyanate resin and / or phenolic resin as the adhesives or the adhesive, the oriented strand board is manufactured according to directional pavement and hot-pressing technologies; the both sides of the oriented strand board are sanded and puttied; one side or both sides of the substrate layer is / are coated with the formaldehyde-free adhesive, and is / are bonded with the overlaying layer or the overlaying layers; and room temperature cold pressing treatment is carried out to allow the adhesive(s) to be solidified, wherein the pressing temperature is 20-35 degrees, the pressing pressure is 0.5-1.5MPa, and the pressing time is 0.5-4h. According to the oriented strand board composite decorative board, the problems that the conventional decorative board is high in formaldehyde content, complicated in technology, and high in cost are solved.

Description

【Technical field】 [0001] The invention relates to an artificial board and a manufacturing method thereof, in particular to an oriented strand board composite decorative board and a manufacturing method thereof. 【Background technique】 [0002] The output of wood composite wood-based panels such as wood flooring, fiberboard and plywood in China has been in the forefront of the world for many years, and it is one of the most used materials in interior decoration and furniture. However, a large number of such products have problems such as low adhesive quality and high release of free formaldehyde, which are harmful to human health and the environment; at the same time, most of these products are non-structural materials with large variations in strength, unstable quality, and poor durability. With the continuous improvement of the formaldehyde emission standards in wood-based panels all over the world, my country's panel companies have entered the stage of structural adjustment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44C5/04B27N3/10B27N3/08
CPCB44C5/043B27N3/08B27N3/10
Inventor 王建和王正刘斌高子震陈劲松
Owner NINGBO ZHONGJIA LOW CARBON NEW TECH RES INST
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