CN110405868A - The double-deck wood skin high-strength artificial plate and its manufacturing method - Google Patents

The double-deck wood skin high-strength artificial plate and its manufacturing method Download PDF

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Publication number
CN110405868A
CN110405868A CN201910755241.XA CN201910755241A CN110405868A CN 110405868 A CN110405868 A CN 110405868A CN 201910755241 A CN201910755241 A CN 201910755241A CN 110405868 A CN110405868 A CN 110405868A
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China
Prior art keywords
wood
epicuticle
parts
plate
lower epidermis
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CN201910755241.XA
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Chinese (zh)
Inventor
张培兴
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Taian Senxin Industry And Trade Co Ltd
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Taian Senxin Industry And Trade Co Ltd
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Priority to CN201910755241.XA priority Critical patent/CN110405868A/en
Publication of CN110405868A publication Critical patent/CN110405868A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09J161/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses the double-deck wood skin high-strength artificial plate and its manufacturing methods.The double-deck wood skin high-strength artificial plate includes core plate, the first epicuticle for being located at core plate two sides, the second epicuticle and the first lower epidermis, the second lower epidermis.The production method that core plate has abandoned traditional particieboard in manufacturing method replaces wood shavings piece using strip filler, carries out hot-pressing to it using low aldehyde glue and form；Then wood skin is soaked into fire-retardant low aldehyde glue, is fitted in core plate two sides, carry out precompressed and hot pressing into the double-deck wood skin high-strength artificial plate.Wood-based plate produced by the present invention has very high intensity and elasticity modulus, can do structural slab even bearing plate and use；Also there is good flame retardant property and waterproof performance simultaneously；The adhesive content of formaldehyde used is lower than 10% and dosage is few, is a kind of low aldehyde wood-based plate.It has a good application prospect.

Description

The double-deck wood skin high-strength artificial plate and its manufacturing method
Technical field
The present invention relates to technical field of artificial boards more particularly to multilayer wood skin high-strength artificial plate and its manufacturing methods.
Background technique
Wood-based plate, as its name suggests, the leftover bits exactly generated in process using timber add chemical adhesive The plate being fabricated to.There are many artificial board type, and there are commonly particieboard, medium-density plate, core-board (lumber core), gluings The decoration types wood-based plate such as plate and fire-proof plate.Because they have the characteristics that respectively different, are applied to different Furniture manufacture necks Domain.The usual paster in wood-based plate two sides or wood skin are decorated.Wood skin is that natural wood produces and processes, and paper is added by physics Work forms, and the texture sense organ of natural veneer is relatively naturally more irregular and has concave-convex sense, sees although the texture of paper is rounder and more smooth More mechanical up, the wood pores of surface smoother, some paper matrix imitation wood heads are still more stiff；So artificial in order to pursue The woodiness touch of plate, there have been more and more wood skin wood-based plates.
As wood-based plate is in the use of the various industries such as decoration, furniture, shipbuilding, automobile, use scope is constantly widened, but Requirement to plate is also continuously improved, especially higher and higher to the intensity requirement of wood-based plate.Wood-based plate currently on the market is more For particieboard, glued board, intensity is not high and a large amount of adhesives is needed to carry out heat pressure adhesive；Although there are many kinds of classes on the market Environment-protective adhesive, such as polyvinyl alcohol adhesive, polyvinyl alcohol adhesive, polyvinyl alcohol adhesive, polyvinyl alcohol adhesive, but These adhesives such as are not all suitable for the bonding of wood materials, and can be used in particieboard at the most effective adhesive mesh of plates hot pressing Preceding only urine aldehyde glue.But the formaldehyde urinated in aldehyde glue can constantly discharge in the use process of wood-based plate, influence people's health.Institute Both to need content of formaldehyde in intensity height and adhesive low now, also there is the wood-based plate of flame retardant effect to fill up gaps in market.
Summary of the invention
It is high that in view of the deficiencies of the prior art, the present invention provides a kind of intensity, low-methoxyl aldehyde and the wood skin people with flame retardant effect Make plate and its manufacturing method.
The present invention is achieved through the following technical solutions, and it is high-intensitive that the first aspect of the present invention provides a kind of double-deck wood skin Wood-based plate including core plate, is located at the epicuticle and lower epidermis on core plate two sides.The epicuticle include: the first epicuticle and Second epicuticle；The lower epidermis includes: the first lower epidermis and the second lower epidermis；First epicuticle, the second epicuticle, One lower epidermis and the second lower epidermis are made of the wood skin with wood grain, and the wood grain of the first epicuticle and the second epicuticle is staggeredly or same To arrangement, the wood grain of the first lower epidermis and the second lower epidermis is interlocked or is collectively aligned.
Preferably, the wood-based plate with a thickness of 1.2~3.4cm.
Preferably, first epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis with a thickness of 1~ 2mm。
Preferably, the core plate is prepared from the following steps:
(1) raw material are first ground into length and are the bar of 10cm, then being ground into length is 3~4cm, finally smashing into The strip filler of length 2.6cm, width 0.8cm, thickness 0.6cm；
(2) strip filler is soaked into low aldehyde glue；
(3) the strip filler laying that will soak low aldehyde glue, is then hot pressed into core plate.
Preferably, the raw material be building waste, it is any one in discarded timber, ornament materials, timeworn furniture and stalk Kind is several.
Preferably, the pressure of the hot pressing is 1.2~1.4MPa；The temperature of the hot pressing is 160~190 DEG C；The heat The time of pressure is 5~10min.
Preferably, the low aldehyde glue includes the raw material of following parts by weight: 10~20 parts of urea, 10~20 parts of formaldehyde, and three 5~10 parts of cymel, 10~20 parts of polyvinyl alcohol, 10~20 parts of sodium carboxymethylcellulose, 1~2 part of hydrochloric acid, sodium hydroxide 1~2 part, 1~4 part of ammonium hydroxide, 5~10 parts of Self- raising flour, 5~10 parts of starch.
Preferably, the core plate is formed by strip filler laying, the specification of strip filler are as follows: length 2.6cm, width 0.8cm, thickness 0.6cm.
Preferably, the core plate is formed by two layers of strip filler laying: the transversely arranged laying of first layer strip filler, Second layer strip filler longitudinal arrangement laying.
Preferably, the core plate is formed by filler laying three-layer strip-like: the transversely arranged laying of first layer strip filler, Second layer strip filler is in " people " font laying, third layer strip filler longitudinal arrangement laying.
Preferably, the core plate is formed by four layers of strip filler laying: the transversely arranged laying of first layer strip filler, Second layer strip filler longitudinal arrangement laying, the transversely arranged laying of third layer strip filler, the 4th layer of strip filler are vertical To arrangement laying.
Preferably, the core plate is formed by five layers of strip filler laying: the transversely arranged laying of first layer strip filler, Second layer strip filler is in " people " font laying, third layer strip filler longitudinal arrangement laying, the 4th layer of strip filler In " people " font laying, the transversely arranged laying of layer 5 strip filler.
The second aspect of the present invention provides the manufacturing method of the double-deck wood skin high-strength artificial plate, the manufacturing method include with Lower step:
S01. the second epicuticle and the second lower epidermis are immersed into fire-retardant low aldehyde adhesive, makes the second epicuticle and the second following table The two sides of skin is all soaked with fire-retardant low aldehyde adhesive；
S02. by the first epicuticle, the second epicuticle for being soaked with fire-retardant low aldehyde adhesive, core plate, be soaked with fire-retardant low aldehyde gluing The second lower epidermis and the second lower epidermis of agent successively sequentially fit together, and carry out precompressed；
S03. the plate after precompressed is subjected to hot pressing, obtains the double-deck wood skin high-strength artificial plate after cooling and shaping.
Preferably, the fire-retardant low aldehyde adhesive includes the raw material of following parts by weight: 40~50 parts of low aldehyde glue, low muscle face 5~10 parts of powder, 5~8 parts of cornstarch, 10~15 parts of environment-friendly waterproof glue, disappear 5~10 parts of aldehyde powder, organophosphorous fire retardant 15~25 Part；
Wherein, the low aldehyde glue includes the raw material of following parts by weight: 10~20 parts of urea, 10~20 parts of formaldehyde, and trimerization 5~10 parts of melamine resin, 10~20 parts of polyvinyl alcohol, 10~20 parts of sodium carboxymethylcellulose, 1~2 part of hydrochloric acid, sodium hydroxide 1 ~2 parts, 1~4 part of ammonium hydroxide, 5~10 parts of Self- raising flour, 5~10 parts of starch.
Preferably, the glue-spread of second epicuticle and the second lower epidermis is 3m2Wood skin applies the fire-retardant low aldehyde gluing of 2Kg Agent.
Preferably, the pressure of the precompressed is 250~500kN/m2；The pressure of the hot pressing is 350~370 tons, hot pressing Temperature is 100~110 DEG C, and hot pressing time is 20~30min.
The invention has the benefit that
1. the double-deck wood skin high-strength artificial plate of the invention enhances the intensity of wood-based plate, core plate using the high wood skin of intensity Wood shavings piece is replaced using the strip filler of a height of 2.6 × 0.8 × 0.6cm of length and width, substantially increases the intensity of core plate.
2. the double-deck wood skin high-strength artificial plate of the invention, core plate uses the originals such as building waste, decoration obsolete material, stalk Material is made, and raw material are not required to the very tiny of crushing, not only reduce costs but also improve production efficiency and simplify production process.
3. the double-deck wood skin high-strength artificial plate of the invention uses low aldehyde glue when making core plate, by the way that polyvinyl alcohol is added The additional amount of urine aldehyde is reduced with sodium carboxymethylcellulose；Fire-retardant low aldehyde adhesive is used when bonding wood skin, by the way that low muscle is added The substances such as flour, starch reduce the content of formaldehyde in wood-based plate.
4. the double-deck wood skin high-strength artificial plate of the invention uses fire-retardant low aldehyde adhesive when bonding wood skin, in adhesive Organophosphorous fire retardant is added, is used between two layers of wood skin, fire retardant generates phosphoric acid layer in burning and forms fixedness protection Layer is covered in combustion front, has completely cut off the supply of oxygen, and burning is promoted to stop again because poly-metaphosphoric acid can promote high polymer combustion decomposition It is carried out to carbonization, large quantity of moisture is generated, to prevent burning.The fire retardant effectively can prevent wood skin from burning, to protect Core plate.
5. the wood grain of the double-deck wood skin on the double-deck wood skin high-strength artificial plate two sides of the invention is staggered, make lower epidermis Wood grain occlusion, intensity that is not only beautiful but also increasing wood-based plate.
6. the production work that the double-deck wood skin high-strength artificial plate of the invention has abandoned traditional particieboard in the production of core plate Skill replaces wood shavings piece with the strip filler of 2.6 × 0.8 × 0.6cm, greatly reduces the dosage of adhesive, decrease first The burst size of aldehyde.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the double-deck wood skin high-strength artificial plate of the invention；
A is the transversely arranged ply angles schematic diagram of strip filler in Fig. 2；
B is strip filler longitudinal arrangement ply angles schematic diagram in Fig. 2；
C is strip filler in " people " font arrangement ply angles schematic diagram in Fig. 2；
Fig. 3 is the process flow chart of the double-deck wood skin high-strength artificial plate of the invention；
It is as shown in the figure:
1, core plate, the 2, first epicuticle, the 3, first lower epidermis, the 4, second epicuticle, the 5, second lower epidermis.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
As described in background, the wood-based plate that particieboard patch wood skin currently on the market is made into needs intensity high and gluing Content of formaldehyde is low in agent, has the plate of flame retardant effect also to fill up gaps in market.Based on this, the present invention provides the double-deck wood skins High-strength artificial plate and its manufacturing method.The double-deck wood skin high-strength artificial plate includes core plate, the upper table for being located at core plate two sides Skin and lower epidermis, the epicuticle include: the first epicuticle and the second epicuticle；The lower epidermis include: the first lower epidermis and Second lower epidermis；First epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis are by the wood skin system with wood grain At the wood grain of the first epicuticle and the second epicuticle is interlocked or is collectively aligned, and the wood grain of the first lower epidermis and the second lower epidermis is handed over Mistake is collectively aligned.
In order to improve the intensity of wood-based plate from structure, core plate uses specification to fill for the strip of 2.6 × 0.8 × 0.6cm Object replaces wood shavings piece, and compared with ordinary particle board, intensity greatly improves the core plate after laying, hot pressing.When core plate is one layer, item The laying of shape filler is in " people " font；When core plate is formed by two layers of strip filler laying: first layer strip filler is horizontal To arrangement laying, second layer strip filler longitudinal arrangement laying.When core plate is formed by filler laying three-layer strip-like: first The layer transversely arranged laying of strip filler, second layer strip filler are in " people " font laying, and third layer strip filler is longitudinal Arrange laying.When core plate is formed by four layers of strip filler laying: the transversely arranged laying of first layer strip filler, the second layer Strip filler longitudinal arrangement laying, the transversely arranged laying of third layer strip filler, the 4th layer of strip filler longitudinal arrangement Laying.When core plate is formed by five layers of strip filler laying: the transversely arranged laying of first layer strip filler, second layer strip Filler is in " people " font laying, and third layer strip filler longitudinal arrangement laying, the 4th layer of strip filler is in " people " font Laying, the transversely arranged laying of layer 5 strip filler.The laying direction difference of every layer of strip filler can increase core plate Intensity.
The wood skin being bonded in the present invention with core plate is using soft raw wooden skin, and raw wooden skin more has bullet compared with original plank Property and toughness, are also easier to be bonded with core plate.Log plate surface is smooth and raw wooden skin surface band is textured, is bonded with core plate When, raw wooden skin and the frictional force that core plate generates are bigger, wood grain is staggered, be engaged can be bonded with core plate it is closer；Every layer Wood skin with a thickness of 1~2mm, also further increase can wood-based plate intensity.
The low aldehyde glue includes the raw material of following parts by weight: 10~20 parts of urea, 10~20 parts of formaldehyde, and melamine tree 5~10 parts of rouge, 10~20 parts of polyvinyl alcohol, 10~20 parts of sodium carboxymethylcellulose, 1~2 part of hydrochloric acid, 1~2 part of sodium hydroxide, 1~4 part of ammonium hydroxide, 5~10 parts of Self- raising flour, 5~10 parts of starch.
Strip filler in core plate uses low aldehyde glue, is that polyvinyl alcohol and carboxymethyl fibre are added on the basis of urinating aldehyde glue Tie up plain sodium, both substances can polymerization film formation, be used together with flour with starch and not only increase the caking property of urine aldehyde glue but also play The effect of curing agent is also greatly reduced the content of urine aldehyde；Content of formaldehyde is reduced to 20% or less by original 40% or more.Together When, compared with particieboard, the content of adhesive used in the manufacture of core plate is greatly reduced.Particieboard needs a large amount of adhesives Wood shavings piece or particle are bonded together, and the core plate in the present invention uses the strip filler with certain size, glues The glue consumption of knot is greatly reduced, so the content of formaldehyde discharged in binder also drops significantly compared with the particieboard of same size It is low.
The fire-retardant low aldehyde adhesive includes the raw material of following parts by weight: 40~50 parts of low aldehyde glue, Self- raising flour 5~10 Part, 5~8 parts of cornstarch, 10~15 parts of environment-friendly waterproof glue, disappear 5~10 parts of aldehyde powder, 15~25 parts of organophosphorous fire retardant.
Wherein, the raw material composition of low aldehyde glue is same as above, the raw material including following parts by weight: 10~20 parts of urea, formaldehyde 10 ~20 parts, 5~10 parts of melamine resin, 10~20 parts of polyvinyl alcohol, 10~20 parts of sodium carboxymethylcellulose, hydrochloric acid 1~2 Part, 1~2 part of sodium hydroxide, 1~4 part of ammonium hydroxide, 5~10 parts of Self- raising flour, 5~10 parts of starch.
Environment-friendly waterproof glue, the aldehyde powder that disappears are commercial product, can be purchased from Liaocheng brilliant cyclopentadienyl environmentally friendly development in science and technology Co., Ltd.
Core plate two sides fitting wood skin use fire-retardant low aldehyde adhesive, be on the basis of low aldehyde glue be added Self- raising flour, Cornstarch, the anti-glue of environmental protection disappear aldehyde powder and organophosphorous fire retardant is made.This formula is obtained through prolonged and repeated test, low muscle Flour and cornstarch can increase the caking property of low aldehyde glue, while prevent in urine aldehyde adhesive curing post-shrinkage ratio is big, glue-line generates Stress declines adhesion strength.The addition of environment-friendly waterproof glue can make wood-based plate play the purpose of waterproof, additionally it is possible to control artificial The release of formaldehyde in plate, guarantees the health of user.The aldehyde powder that disappears can reduce the release of formaldehyde in pollopas gluing agent, simultaneously Improve the stability of Lauxite.Organophosphorous fire retardant abbreviation DMMP is a kind of additive flame retardant, is bonded using this fire retardant Wood skin when encountering kindling, DMMP decompose generate phosphoric acid layer, formed fixedness protective layer be covered in wood skin, completely cut off oxygen The supply of gas promotes burning to stop producing large quantity of moisture because poly-metaphosphoric acid can promote high polymer combustion decomposition to carry out to carbonization again, To prevent burning.It generally burns since the two sides of wood-based plate when kindling, when first layer wood skin is burnt to second layer wood skin, Because the fire-retardant low aldehyde adhesive between two layers of wood skin prevents the continuation of burning, core plate is protected not to be ignited.So the second layer The fire-retardant low aldehyde adhesive of two layers of veneer surface can kindling when effective protection wood-based plate, have good flame retardant effect.And Self- raising flour, cornstarch, waterproof go the addition of aldehyde agent and organophosphorous fire retardant that content of formaldehyde is made to be down to 10% by 20% or so Below.
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Embodiment 1:
1. wood skin select poplar wood skin, the first epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis thickness It is 1mm, the first epicuticle is vertical with the wood grain of the wood grain vertical interlaced of the second epicuticle, the first lower epidermis and the second lower epidermis Staggeredly；
2. the manufacture of core plate:
(1) timeworn furniture are first ground into length and are the bar of 10cm, then being ground into length is 4cm, finally smashing into is long Spend the strip filler of 2.6cm, width 0.8cm, thickness 0.6cm；
(2) strip filler is soaked into low aldehyde glue；
(3) the strip filler for soaking low aldehyde glue is paved into three layers: first layer is lateral, the second layer is in " people " font, third layer Longitudinal arrangement；Then hot pressing, pressure 1.2MPa, hot pressing temperature be 190 DEG C, the time of hot pressing is 5min；It is after cooling Core plate.
3. the raw material that low aldehyde glue includes following parts by weight: 10 parts of urea, 10 parts of formaldehyde, 5 parts of melamine resin, poly- second 10 parts of enol, 10 parts of sodium carboxymethylcellulose, 1 part of hydrochloric acid, 1 part of sodium hydroxide, 1 part of ammonium hydroxide, 5 parts of Self- raising flour, 5 parts of starch.
Fire-retardant low aldehyde adhesive includes the raw material of following parts by weight: 50 parts of low aldehyde glue, and 10 parts of Self- raising flour, cornstarch 8 parts, 15 parts of environment-friendly waterproof glue, disappear 10 parts of aldehyde powder, 25 parts of organophosphorous fire retardant.
4. the manufacture of wood-based plate:
S01. the second epicuticle and the second lower epidermis are immersed into fire-retardant low aldehyde adhesive, makes the second epicuticle and the second following table The two sides of skin is all soaked with fire-retardant low aldehyde adhesive；
S02. by the first epicuticle, the second epicuticle for being soaked with fire-retardant low aldehyde adhesive, core plate, be soaked with fire-retardant low aldehyde gluing The second lower epidermis and the second lower epidermis of agent successively sequentially fit together, and carry out precompressed, pressure 250kN/m2；
S03. the plate after precompressed is subjected to hot pressing, pressure is 350 tons, and temperature is 110 DEG C, time 20min；It is cooling fixed The double-deck wood skin high-strength artificial plate is obtained after type.
Artificial board thickness are as follows: 2.2cm.
Embodiment 2
1. wood skin selects poplar wood skin, the first epicuticle and the first lower epidermis with a thickness of 1mm, the second epicuticle and second The thickness of lower epidermis is 2mm, and the wood grain of the first epicuticle and the second epicuticle is collectively aligned, the first lower epidermis and the second following table The wood grain of skin is collectively aligned；
2. the manufacture of core plate:
(1) building waste is first ground into length and is the bar of 10cm, then being ground into length is 4cm, finally smashing into The strip filler of length 2.6cm, width 0.8cm, thickness 0.6cm；
(2) strip filler is soaked into low aldehyde glue；
(3) the strip filler for soaking low aldehyde glue is paved into three layers: first layer is lateral, the second layer is in " people " font, third layer Longitudinal arrangement；Then hot pressing, pressure 1.3MPa, hot pressing temperature be 175 DEG C, the time of hot pressing is 8min；It is after cooling Core plate.
3. the raw material that low aldehyde glue includes following parts by weight: 15 parts of urea, 15 parts of formaldehyde, 8 parts of melamine resin, poly- second 15 parts of enol, 15 parts of sodium carboxymethylcellulose, 1 part of hydrochloric acid, 2 parts of sodium hydroxide, 2 parts of ammonium hydroxide, 8 parts of Self- raising flour, 8 parts of starch.
Fire-retardant low aldehyde adhesive includes the raw material of following parts by weight: 45 parts of low aldehyde glue, and 8 parts of Self- raising flour, cornstarch 6 Part, 13 parts of environment-friendly waterproof glue, disappear 8 parts of aldehyde powder, 20 parts of organophosphorous fire retardant.
4. the manufacture of wood-based plate:
S01. the second epicuticle and the second lower epidermis are immersed into fire-retardant low aldehyde adhesive, makes the second epicuticle and the second following table The two sides of skin is all soaked with fire-retardant low aldehyde adhesive；
S02. by the first epicuticle, the second epicuticle for being soaked with fire-retardant low aldehyde adhesive, core plate, be soaked with fire-retardant low aldehyde gluing The second lower epidermis and the second lower epidermis of agent successively sequentially fit together, and carry out precompressed, pressure 350kN/m2；
S03. the plate after precompressed is subjected to hot pressing, pressure is 360 tons, and temperature is 105 DEG C, time 25min；It is cooling fixed The double-deck wood skin high-strength artificial plate is obtained after type.
Artificial board thickness are as follows: 2.4cm.
Embodiment 3
1. wood skin select poplar wood skin, the first epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis thickness It is 2mm, the first epicuticle is vertical with the wood grain of the wood grain vertical interlaced of the second epicuticle, the first lower epidermis and the second lower epidermis Staggeredly；
2. the manufacture of core plate:
(1) discarded timber is first ground into length and is the bar of 10cm, then being ground into length is 4cm, finally smashing into The strip filler of length 2.6cm, width 0.8cm, thickness 0.6cm；
(2) strip filler is soaked into low aldehyde glue；
(3) the strip filler for soaking low aldehyde glue is paved into three layers: first layer is lateral, the second layer is in " people " font, third layer Longitudinal arrangement；Then hot pressing, pressure 1.4MPa, hot pressing temperature be 160 DEG C, the time of hot pressing is 10min；It is after cooling Core plate.
3. the raw material that low aldehyde glue includes following parts by weight: 20 parts of urea, 20 parts of formaldehyde, 10 parts of melamine resin, gathering 20 parts of vinyl alcohol, 20 parts of sodium carboxymethylcellulose, 2 parts of hydrochloric acid, 2 parts of sodium hydroxide, 4 parts of ammonium hydroxide, 10 parts of Self- raising flour, starch 10 Part.
Fire-retardant low aldehyde adhesive includes the raw material of following parts by weight: 40 parts of low aldehyde glue, and 5 parts of Self- raising flour, cornstarch 5 Part, 10 parts of environment-friendly waterproof glue, disappear 5 parts of aldehyde powder, 15 parts of organophosphorous fire retardant.
4. the manufacture of wood-based plate:
S01. the second epicuticle and the second lower epidermis are immersed into fire-retardant low aldehyde adhesive, makes the second epicuticle and the second following table The two sides of skin is all soaked with fire-retardant low aldehyde adhesive；
S02. by the first epicuticle, the second epicuticle for being soaked with fire-retardant low aldehyde adhesive, core plate, be soaked with fire-retardant low aldehyde gluing The second lower epidermis and the second lower epidermis of agent successively sequentially fit together, and carry out precompressed, pressure 500kN/m2；
S03. the plate after precompressed is subjected to hot pressing, pressure is 370 tons, and temperature is 100 DEG C, time 20min；It is cooling fixed The double-deck wood skin high-strength artificial plate is obtained after type.
Artificial board thickness are as follows: 2.6cm.
Comparative example 1
1. wood skin select poplar wood skin, the first epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis thickness It is 1mm, wood grain is staggered；
2. core plate: ordinary particle board is used, with a thickness of 1.8cm；
3. adhesive: commercially available urine aldehyde glue；
4. the manufacture of wood-based plate:
With embodiment 1.
Artificial board thickness: 2.2cm.
Comparative example 2
1. wood skin selects poplar wood skin, the first epicuticle and the first lower epidermis with a thickness of 1mm, the second epicuticle and second The thickness of lower epidermis is 2mm；
2. core plate: ordinary particle board is used, with a thickness of 1.8cm；
3. adhesive: commercially available urine aldehyde glue；
4. the manufacture of wood-based plate:
With embodiment 2.
Artificial board thickness: 2.4cm.
Comparative example 3
1. wood skin select poplar wood skin, the first epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis thickness It is 2mm；
2. core plate: ordinary particle board is used, with a thickness of 1.8cm；
3. adhesive: commercially available urine aldehyde glue；
4. the manufacture of wood-based plate:
With embodiment 3.
Artificial board thickness: 2.6cm.
Test example 1: static bending strength test
Using universal electrical tensile testing machine according to GB/T 17657-2013 " wood-based plate and face artificial board physicochemical property Test method " wood-based plate sample made from testing example 1~3 and comparative example 1~3 static bending strength intensity (3 points) and elasticity Modulus, acquired results are shown in Table 1.
1 static bending strength of table and elasticity modulus test result
Project Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2 Comparative example 3
Static bending strength MPa 31.4 30.6 30.2 20.0 19.1 18.8
Elasticity modulus MPa 3287 3215 3116 2701 2658 2581
As shown in Table 1, the static bending strength of wood-based plate made from Examples 1 to 3 and elasticity modulus are much larger than comparative example 1~3, Wood-based plate made from embodiment has very high static bending strength and elasticity modulus, can do structural slab even bearing plate and use.
Test example 2: flammability test
Oxygen index test, gained knot are carried out using the wood-based plate that oxygen index instrument manufactures Examples 1 to 3 and comparative example 1~3 Fruit is shown in Table 2.
2 oxygen index test result of table
Project Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2 Comparative example 3
Oxygen index (OI) % 36.2 35.4 35.1 26.3 26.0 25.4
As shown in Table 2, wood-based plate oxygen index (OI) made from Examples 1 to 3 is much larger than comparative example 1~3, and maximum value reaches 36.2, flame-retardancy requirements are complied fully with, the flame retardant effect of the double-deck wood skin high-strength artificial plate of the invention is significant.
Test example 3: burst size of methanal test
Using condensed steam water according to GB/T 17657-2013 " test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels ", At a certain temperature, the wood-based plate sample that Example 1~3 and comparative example 1~3 manufacture is put into drier, test specimen release Formaldehyde is absorbed by the water of certain volume, the content of formaldehyde in measurement for 24 hours in water.Acquired results are shown in Table 3.
3 burst size of methanal of table
As can be seen from Table 3, wood-based plate made from Examples 1 to 3, burst size of methanal are far below comparative example 1~3, implement The burst size of methanal of example 1 is minimum, this is related with the additional amount for the aldehyde powder that disappears in fire-retardant low aldehyde adhesive used in embodiment 1, and Environment-friendly waterproof glue used in fire-retardant low aldehyde adhesive also plays the role of controlling Form aldehyde release.Wood-based plate of the invention is more ring The low aldehyde wood-based plate protected.
Test example 4: water swelling test
Using sink and micrometer according to GB/T 17657-2013 " wood-based plate and face artificial board physicochemical property test side Method " wood-based plate sample made from testing example 1~3 and comparative example 1~3 thickness swelling rate for 24 hours, acquired results are shown in Table 4。
4 expansion rate of water absorption of table
As shown in Table 4, wood-based plate water imbibition made from Examples 1 to 3 is lower than comparative example 1~3, and used in embodiment The environment-friendly waterproof glue being added in fire-retardant low aldehyde adhesive is related, and the waterproof performance of product is good.
Test example 5: bonding strength test
Using universal tensile testing machine, according to GB/T 17657-2013, " wood-based plate and face artificial board physicochemical property are tested Method " wood-based plate made from testing example 1~3 and comparative example 1~3 bonding strength and surface bonding intensity, acquired results It is shown in Table 5.
5 bonding strength test result of table
As shown in Table 5, the bonding strength of wood-based plate is made in Examples 1 to 3 and surface bonding intensity is slightly above comparative example 1 ~3, show that the fire-retardant low aldehyde adhesive that the present invention uses has good adhesive property, and content of formaldehyde is low, is ideal low Aldehyde adhesive.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or It is realized using the prior art, details are not described herein；Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention not It is limitation of the present invention, is described the invention in detail referring to preferred embodiment, the ordinary skill people of this field Member is it should be appreciated that variation, remodeling, the addition that those skilled in the art are made within the essential scope of the present invention Or replacement also should belong to claims of the invention without departure from spirit of the invention.

Claims (10)

1. the double-deck wood skin high-strength artificial plate, including core plate, it is located at the epicuticle and lower epidermis on core plate two sides, feature exists In the epicuticle includes: the first epicuticle and the second epicuticle；The lower epidermis includes: the first lower epidermis and the second following table Skin；First epicuticle, the second epicuticle, the first lower epidermis and the second lower epidermis are made of the wood skin with wood grain, and first The wood grain of epicuticle and the second epicuticle is interlocked or is collectively aligned, and the wood grain of the first lower epidermis and the second lower epidermis is staggeredly or in the same direction Arrangement.
2. wood-based plate according to claim 1, which is characterized in that the core plate is prepared from the following steps:
(1) raw material are first ground into length and are the bar of 10cm, then being ground into length is 3~4cm, finally smashing into length The strip filler of 2.6cm, width 0.8cm, thickness 0.6cm；
(2) strip filler is soaked into low aldehyde glue；
(3) the strip filler laying that will soak low aldehyde glue, is then hot pressed into core plate.
3. wood-based plate according to claim 2, which is characterized in that the raw material are building waste, discarded timber, decoration Any one or a few in material, timeworn furniture and stalk.
4. wood-based plate according to claim 2, which is characterized in that the pressure of the hot pressing is 1.2~1.4MPa；The heat The temperature of pressure is 160~190 DEG C；The time of the hot pressing is 5~10min.
5. wood-based plate according to claim 2, which is characterized in that the low aldehyde glue includes the raw material of following parts by weight: 10~20 parts of urea, 10~20 parts of formaldehyde, 5~10 parts of melamine resin, 10~20 parts of polyvinyl alcohol, sodium carboxymethylcellulose 10~20 parts, 1~2 part of hydrochloric acid, 1~2 part of sodium hydroxide, 1~4 part of ammonium hydroxide, 5~10 parts of Self- raising flour, 5~10 parts of starch.
6. wood-based plate according to claim 1, which is characterized in that first epicuticle, the second epicuticle, the first following table Skin and the second lower epidermis with a thickness of 1~2mm.
7. the manufacturing method of the double-deck wood skin high-strength artificial plate described in any one of claim 1-6, which is characterized in that institute State manufacturing method the following steps are included:
S01. the second epicuticle and the second lower epidermis are immersed into fire-retardant low aldehyde adhesive, makes the second epicuticle and the second lower epidermis Two sides is all soaked with fire-retardant low aldehyde adhesive；
S02. by the first epicuticle, the second epicuticle for being soaked with fire-retardant low aldehyde adhesive, core plate, be soaked with fire-retardant low aldehyde adhesive Second lower epidermis and the second lower epidermis successively sequentially fit together, and carry out precompressed；
S03. the plate after precompressed is subjected to hot pressing, obtains the double-deck wood skin high-strength artificial plate after cooling and shaping.
8. manufacturing method according to claim 7, which is characterized in that the fire-retardant low aldehyde adhesive includes following parts by weight Raw material: 40~50 portions of low aldehyde glue, 5~8 parts of cornstarch, 10~15 parts of environment-friendly waterproof glue, disappears by 5~10 parts of Self- raising flour 5~10 parts of aldehyde powder, 15~25 parts of organophosphorous fire retardant.
9. manufacturing method according to claim 7, which is characterized in that the gluing of second epicuticle and the second lower epidermis Amount is 3m2Wood skin applies the fire-retardant low aldehyde adhesive of 2Kg.
10. manufacturing method according to claim 7, which is characterized in that the pressure of the precompressed is 250~500kN/m2；Institute The pressure for stating hot pressing is 350~370 tons, and hot pressing temperature is 100~110 DEG C, and hot pressing time is 20~30min.
CN201910755241.XA 2019-08-15 2019-08-15 The double-deck wood skin high-strength artificial plate and its manufacturing method Pending CN110405868A (en)

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JP2002036214A (en) * 2000-07-24 2002-02-05 Bridgestone Corp Core material board and finish material using the core material board
CN101214667A (en) * 2008-01-14 2008-07-09 南京林业大学 Veneer pressurization gumming enhancement type composite container floor and manufacturing method thereof
CN201132351Y (en) * 2007-12-05 2008-10-15 广东威华股份有限公司 Shaving board of single-board decoration smoke rod
CN101579876A (en) * 2009-06-12 2009-11-18 云南永利发林业有限公司 Gluing process for bamboo sheets or wood sheets in manufacturing directional structural flakeboards
CN101913173A (en) * 2010-07-20 2010-12-15 李启山 Method for manufacturing resin-modified synthetic board
CN104416642A (en) * 2013-09-03 2015-03-18 湖南旺正新材料有限公司 Artificial board manufactured by taking waste building templates as raw material and manufacturing method thereof
CN105500469A (en) * 2014-09-23 2016-04-20 嘉善新华昌木业有限公司 Container flooring with shaving laminated lumber as sandwich layer and manufacturing method of container flooring
CN210791343U (en) * 2019-08-15 2020-06-19 泰安市森鑫工贸有限公司 Double-layer veneer high-strength artificial board

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002036214A (en) * 2000-07-24 2002-02-05 Bridgestone Corp Core material board and finish material using the core material board
CN201132351Y (en) * 2007-12-05 2008-10-15 广东威华股份有限公司 Shaving board of single-board decoration smoke rod
CN101214667A (en) * 2008-01-14 2008-07-09 南京林业大学 Veneer pressurization gumming enhancement type composite container floor and manufacturing method thereof
CN101579876A (en) * 2009-06-12 2009-11-18 云南永利发林业有限公司 Gluing process for bamboo sheets or wood sheets in manufacturing directional structural flakeboards
CN101913173A (en) * 2010-07-20 2010-12-15 李启山 Method for manufacturing resin-modified synthetic board
CN104416642A (en) * 2013-09-03 2015-03-18 湖南旺正新材料有限公司 Artificial board manufactured by taking waste building templates as raw material and manufacturing method thereof
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