CN104552490A - Wood-base structure composite material and preparation method thereof - Google Patents

Wood-base structure composite material and preparation method thereof Download PDF

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Publication number
CN104552490A
CN104552490A CN201410834037.4A CN201410834037A CN104552490A CN 104552490 A CN104552490 A CN 104552490A CN 201410834037 A CN201410834037 A CN 201410834037A CN 104552490 A CN104552490 A CN 104552490A
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layer
inorganic adhesive
preparation
wood
sawed
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CN201410834037.4A
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CN104552490B (en
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吴义强
李新功
刘壮青
卿彦
郑霞
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Central South University of Forestry and Technology
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Central South University of Forestry and Technology
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    • 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
    • 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
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • 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
    • B32B21/10—Next to a fibrous or filamentary layer
    • 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
    • B32B7/12—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
    • C09J1/00—Adhesives based on inorganic constituents
    • C09J1/02—Adhesives based on inorganic constituents containing water-soluble alkali silicates
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a wood-base structure composite material. The wood-base structure composite material is of a lamellar structure and comprises a middle fireproof layer and wooden layers, wherein the wooden layers are positioned on two surfaces of the fireproof layer; the fireproof layer is formed by compositing inorganic adhesives, crushed plant materials and fiberglass mesh; each wooden layer comprises a rotary-cut veneer layer and a sawed veneer layer; the fireproof layer is adhered to each sawed veneer layer through the inorganic adhesive; each rotary-cut veneer layer is adhered to the outer surface layer of the corresponding sawed veneer layer through the inorganic adhesive. The preparation method of the wood-base composite material comprises the steps of preparation of the inorganic adhesives, preparation of the fireproof layer and molding of the wood-base composite material. The wood-base composite material is good in fireproof performance, the fireproof grade reaches A2, formaldehyde release is avoided, and the bending strength exceeds 62MPa.

Description

A kind of wooden based structures composite and preparation method thereof
Technical field
The present invention relates to field of compound material, particularly relate to a kind of wooden based structures composite and preparation method thereof.
Background technology
Wood based structures composite utilizes wooden unit by the Novel multi-phase composite be processed to form with heterogeneous reinforcement or functive unit hybrid composite manner, has apply very widely in the field such as building, decoration, furniture.But conventional wooden based structures composite is usually by the Organic adhesive such as urea-formaldehyde resin adhesive, epoxide-resin glue gummed, and construction unit is more single, presents the shortcomings such as intensity is relatively low, the feature of environmental protection is poor, inflammable, limits its range of application.Therefore, exploitation High-strength environmentally-friefuran is prevented fires wooden based structures composite, significantly improves its added value, expands its application significant.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides wooden based structures composite that a kind of good environmental protection, intensity are high, fire protecting performance is excellent and preparation method thereof.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of wooden based structures composite, for layer structure, comprise middle fireprotection layer and be positioned at the layer of wood on fireprotection layer two surface, described fireprotection layer is composited by inorganic adhesive, crushed aggregate of plant and fiberglass gridding cloth, described layer of wood comprises rotary cut venner layer and sawed veneer layer, fireprotection layer and sawed veneer layer are glued together by inorganic adhesive, and rotary cut venner layer is glued at the extexine of sawed veneer layer by inorganic adhesive.
Above-mentioned composite, preferably, described inorganic adhesive forms primarily of the component of following weight portion: 40 ~ 60 parts, calcium sulfate, sodium metasilicate 5 ~ 10 parts, 30 ~ 60 parts, water, carbamide resin 5 ~ 12 parts, 10 ~ 25 parts, magnesium chloride and silane coupler 0.01 ~ 0.2 part.
Above-mentioned composite, preferably, described inorganic adhesive and crushed aggregate of plant are uniformly mixed into thick slurry according to the weight ratio of 8:2 ~ 6:4 and are layed in the both sides of fiberglass gridding cloth; In described crushed aggregate of plant, order number is that 5 ~ 10 objects account for 40wt%, and 12 ~ 40 objects account for 60wt%.
Above-mentioned composite, preferably, described sawed veneer layer thickness is 8 ~ 30mm, and described rotary cut venner layer thickness is 0.8 ~ 2mm, and described fireprotection layer thickness is 8 ~ 30mm.
Above-mentioned composite, preferably, described rotary cut venner layer is mutually vertical with sawed veneer layer wood grain.
As a total inventive concept, the present invention also provides a kind of preparation method of above-mentioned composite, comprises the following steps:
1) preparation of inorganic adhesive: 40 ~ 60 parts sulfuric acid calcium are mixed with 30 ~ 60 weight parts waters after also fully stirring 10 ~ 15min and add 5 ~ 10 weight portion sodium metasilicate, 10 ~ 25 weight portion magnesium chlorides continue stirring 3 ~ 5min, then in mixture, 5 ~ 12 weight portion carbamide resins and 0.01 ~ 0.2 weight portion silane coupler also abundant stirring 10 ~ 15min is added, i.e. obtained inorganic adhesive;
2) preparation of fireprotection layer: by step 1) the inorganic adhesive prepared and crushed aggregate of plant be uniformly mixed, form thick mixed slurry, thick mixed slurry and fiberglass gridding cloth being made intermediate layer by shaping frame is again fiberglass gridding cloth, the outer three-decker fireprotection layer blank for mixed slurry layer, leaves standstill, namely makes fireprotection layer after natural curing;
3) wood base composite material is shaping: first carry out pretreatment to sawed veneer; To mat formation successively on rotary cut venner more described sawed veneer, step 2) fireprotection layer prepared, sawed veneer and rotary cut venner, form the wooden based structures composite slab of 5 Rotating fields, cure under pressure is shaping.
Above-mentioned preparation method, preferably, described step 2) in, the weight ratio of inorganic adhesive and crushed aggregate of plant is 8:2 ~ 6:4; In described crushed aggregate of plant, order number is that 5 ~ 10 objects account for 40wt%, and 12 ~ 40 objects account for 60wt%.
Above-mentioned preparation method, preferably, described step 2) in, time of repose is 30min, and the time of fireprotection layer blank natural curing is 12 ~ 24h.
Above-mentioned preparation method, preferably, described step 3) in, first carry out pretreatment to sawed veneer and be included in its surface spraying stearic acid, quantity for spray is 1 ~ 2g/cm 2, and the two-sided of sawed veneer is carried out inorganic adhesive process described in roller coat, the roller coat amount of inorganic adhesive is 200 ~ 300g/m 2, ageing 10 ~ 20min in atmosphere after gluing.
Above-mentioned preparation method, preferably, described step 3) in, cure under pressure carries out in cold press, and the Stress control of pressurization is at 1.5 ~ 2.0MPa, and pressing time controls at 30 ~ 40min.
Compared with prior art, the invention has the advantages that:
1) wooden based structures composite of the present invention is containing the three-decker fireprotection layer of fiberglass gridding cloth, and fire protecting performance is good, and fire-protection rating reaches A2 level;
2) wooden based structures composite of the present invention uses inorganic adhesive, formaldehydeless release, good environmental protection;
3) wooden based structures composite material strength of the present invention is high, and bending strength is more than 62MPa;
4) preparation method of wooden based structures composite of the present invention is simple, and cost is low, is easy to suitability for industrialized production, and the wooden based structures composite price of production is only 70% of other wooden based structures composite on market.
Accompanying drawing explanation
Fig. 1 is the structural representation of wooden based structures composite of the present invention.
Marginal data: 1, rotary cut venner layer; 2, sawed veneer layer; 3, fireprotection layer.
Detailed description of the invention
For the ease of understanding the present invention, hereafter will do to describe more comprehensively, meticulously to the present invention in conjunction with Figure of description and preferred embodiment, but protection scope of the present invention is not limited to following specific embodiment.
Unless otherwise defined, hereinafter used all technical terms are identical with the implication that those skilled in the art understand usually.The object of technical term used herein just in order to describe specific embodiment is not be intended to limit the scope of the invention.
Embodiment 1:
A kind of wooden based structures composite of the present invention, for layer structure, as shown in Figure 1, comprise middle fireprotection layer 3 and be positioned at the surperficial layer of wood of fireprotection layer 3 liang, fireprotection layer 3 is composited by inorganic adhesive, crushed aggregate of plant and fiberglass gridding cloth, layer of wood comprises rotary cut venner layer 1 and sawed veneer layer 2, and fireprotection layer 3 and sawed veneer layer 2 are glued together by inorganic adhesive, and rotary cut venner layer 1 is glued at the extexine of sawed veneer layer 2 by inorganic adhesive.
The preparation method of wooden based structures composite of the present invention comprises:
1) inorganic adhesive is prepared
40 parts sulfuric acid calcium are mixed with 50 weight parts waters after also fully stirring 10min and add 10 weight portion sodium metasilicate, 15 weight portion magnesium chlorides continue to stir 4min, then in mixture, add 8 weight portion carbamide resins and 0.05 weight portion silane coupler and fully stir 15min, be i.e. obtained inorganic adhesive.
2) preparation of fireprotection layer
By step 1) (5 ~ 10 orders account for 40wt% for obtained inorganic adhesive and crushed aggregate of plant, 12 ~ 40 orders account for 60wt%) mix merga pass mixer according to the weight ratio ratio that is 4:1 and fully stir, crushed aggregate of plant and inorganic adhesive are mixed, obtains thick mixed slurry;
Again by 50% of total for mixed slurry consumption pour in shaping frame, start the vibrating motor under shaping frame, mixed slurry be evenly distributed in shaping frame and form smooth mixed slurry layer;
Fiberglass gridding cloth is kept flat the mixed slurry layer surface in shaping frame, again 50% remaining mixed slurry is poured on above fiberglass gridding cloth, Vibration on Start-up motor again, make the mixed slurry above fiberglass gridding cloth be evenly distributed in shaping frame, form the fireprotection layer blank of three-decker.After leaving standstill 30min, poured out the fireprotection layer blank hardened in shaping frame, after natural curing 20h, obtained thickness is the fireprotection layer of 12mm.
3) wooden based structures composite is shaping
First pretreatment is carried out to sawed veneer: utilize paint sprayer at the surface spraying stearic acid of 15mm sawed veneer, quantity for spray is 1.5g/cm 2, then dual-layer adhesive machine is sent in coated stearic sawed veneer two-sided roll-coating steps 1 is carried out to sawed veneer) obtained inorganic adhesive, resin added controls at 250g/m 2; By the sawed veneer of coated inorganic adhesive ageing 15min in atmosphere;
The rotary cut venner being 1.2mm using one piece of thickness lies on platform of mating formation as wooden based structures composite layer, then using the sawed veneer lay after ageing on layer under wooden based structures composite in plate, lower middle plate is mutually vertical with layer wood grain.Again by step 2) fireprotection layer for preparing is placed in above lower plate, sawed veneer on fireprotection layer again after lay one piece of ageing is as upper plate, on upper plate, repave that to add one piece of thickness be that the rotary cut venner of 1.2mm is as upper epidermis, upper plate and upper epidermis wood grain are also mutually vertical, the slab of the wooden based structures composite of complete formation 5 Rotating fields of mating formation;
The slab of mating formation complete is sent into cold press cure under pressure.Moulding pressure is 1.8MPa, and open cold press after pressurization 35min and take out slab, stacking sawed limit after 12 days naturally, sanding obtains wooden based structures composite finished product.
The wood base composite material prepared by the present embodiment carries out performance test, records its bending strength and reaches 63.4MPa, and Flame Retardancy can reach A2 level (not firing level) simultaneously, and burst size of methanal is less than 0.03 μ l/L.
Embodiment 2:
A kind of wooden based structures composite of the present invention, for layer structure, as shown in Figure 1, comprise middle fireprotection layer 3 and be positioned at the surperficial layer of wood of fireprotection layer 3 liang, fireprotection layer 3 is composited by inorganic adhesive, crushed aggregate of plant and fiberglass gridding cloth, layer of wood comprises rotary cut venner layer 1 and sawed veneer layer 2, and fireprotection layer 3 and sawed veneer layer 2 are glued together by inorganic adhesive, and rotary cut venner layer 1 is glued at the extexine of sawed veneer layer 2 by inorganic adhesive.
The preparation method of wooden based structures composite of the present invention comprises:
1) preparation of inorganic adhesive
45 parts sulfuric acid calcium are mixed with 55 weight parts waters after also fully stirring 10min and add 8 weight portion sodium metasilicate, 10 weight portion magnesium chlorides continue to stir 5min, then in mixture, add 10 weight portion carbamide resins and 0.1 weight portion silane coupler and fully stir 13min, be i.e. obtained inorganic adhesive.
2) preparation of fireprotection layer
By step 1) (5 ~ 10 orders account for 40w% for obtained inorganic adhesive and crushed aggregate of plant, 12 ~ 40 orders account for 60w%) mix merga pass mixer according to the weight ratio ratio that is 7:3 and fully stir, crushed aggregate of plant and inorganic adhesive are mixed, obtains thick mixed slurry;
Again by 50% of total for mixed slurry consumption pour in shaping frame, start the vibrating motor under shaping frame, mixed slurry be evenly distributed in shaping frame and form smooth mixed slurry layer;
Fiberglass gridding cloth is kept flat the mixed slurry layer surface in shaping frame, again 50% remaining mixed slurry is poured on above fiberglass gridding cloth, Vibration on Start-up motor again, make the mixed slurry above fiberglass gridding cloth be evenly distributed in shaping frame, form the fireprotection layer blank of three-decker.After leaving standstill 30min, poured out the fireprotection layer blank hardened in shaping frame, after natural curing 24h, obtained thickness is the fireprotection layer of 10mm.
3) wooden based structures composite is shaping
First pretreatment is carried out to sawed veneer: utilize paint sprayer at the surface spraying stearic acid of 18mm sawed veneer, quantity for spray is 2g/cm 2, then dual-layer adhesive machine is sent in coated stearic sawed veneer two-sided roll-coating steps 1 is carried out to sawed veneer) obtained inorganic adhesive, resin added controls at 300g/m 2; By the sawed veneer of coated inorganic adhesive ageing 20min in atmosphere;
The rotary cut venner being 0.8mm using one piece of thickness lies on platform of mating formation as wooden based structures composite layer, then using the sawed veneer lay after ageing on layer under wooden based structures composite in plate, lower middle plate is mutually vertical with layer wood grain.Again by step 2) fireprotection layer for preparing is placed in above lower plate, sawed veneer on fireprotection layer again after lay one piece of ageing is as upper plate, on upper plate, repave that to add one piece of thickness be that the rotary cut venner of 0.8mm is as upper epidermis, upper plate and upper epidermis wood grain are also mutually vertical, the slab of the wooden based structures composite of complete formation 5 Rotating fields of mating formation;
The slab of mating formation complete is sent into cold press cure under pressure.Moulding pressure is 1.5MPa, and open cold press after pressurization 40min and take out slab, stacking sawed limit after 14 days naturally, sanding obtains wooden based structures composite finished product.
The wooden based structures composite prepared by the present embodiment carries out performance test, records its bending strength and reaches 64.1MPa, and Flame Retardancy can reach A2 level (not firing level) simultaneously, and burst size of methanal is less than 0.03 μ l/L.

Claims (10)

1. a wooden based structures composite, it is characterized in that: described composite is layer structure, comprise middle fireprotection layer (3) and be positioned at the layer of wood on fireprotection layer (3) two surface, described fireprotection layer (3) is by inorganic adhesive, crushed aggregate of plant and fiberglass gridding cloth are composited, described layer of wood comprises rotary cut venner layer (1) and sawed veneer layer (2), fireprotection layer (3) and sawed veneer layer (2) are glued together by inorganic adhesive, rotary cut venner layer (1) is glued at the extexine of sawed veneer layer (2) by inorganic adhesive.
2. composite according to claim 1, is characterized in that: described inorganic adhesive forms primarily of the component of following weight portion: 40 ~ 60 parts, calcium sulfate, sodium metasilicate 5 ~ 10 parts, 30 ~ 60 parts, water, carbamide resin 5 ~ 12 parts, 10 ~ 25 parts, magnesium chloride and silane coupler 0.01 ~ 0.2 part.
3. composite according to claim 2, is characterized in that: described inorganic adhesive and crushed aggregate of plant are uniformly mixed into thick slurry according to the weight ratio of 8:2 ~ 6:4 and are layed in the both sides of fiberglass gridding cloth; In described crushed aggregate of plant, order number is that 5 ~ 10 objects account for 40wt%, and 12 ~ 40 objects account for 60wt%.
4. composite according to claim 3, it is characterized in that: described sawed veneer layer (2) thickness is 8 ~ 30mm, described rotary cut venner layer (1) thickness is 0.8 ~ 2mm, and described fireprotection layer (3) thickness is 8 ~ 30mm.
5. the composite according to any one of Claims 1 to 4, is characterized in that: described rotary cut venner layer (1) is mutually vertical with the wood grain of sawed veneer layer (2).
6. a preparation method for composite as claimed in claim 5, comprises the following steps:
1) preparation of inorganic adhesive: 40 ~ 60 parts sulfuric acid calcium are mixed with 30 ~ 60 weight parts waters after also fully stirring 10 ~ 15min and add 5 ~ 10 weight portion sodium metasilicate, 10 ~ 25 weight portion magnesium chlorides continue stirring 3 ~ 5min, then in mixture, 5 ~ 12 weight portion carbamide resins and 0.01 ~ 0.2 weight portion silane coupler also abundant stirring 10 ~ 15min is added, i.e. obtained inorganic adhesive;
2) preparation of fireprotection layer: by step 1) the inorganic adhesive prepared and crushed aggregate of plant be uniformly mixed, form thick mixed slurry, thick mixed slurry and fiberglass gridding cloth being made intermediate layer by shaping frame is again fiberglass gridding cloth, the outer three-decker fireprotection layer blank for mixed slurry layer, leaves standstill, namely makes fireprotection layer after natural curing;
3) wood base composite material is shaping: first carry out pretreatment to sawed veneer; To mat formation successively on rotary cut venner more described sawed veneer, step 2) fireprotection layer prepared, sawed veneer and rotary cut venner, form the wooden based structures composite slab of 5 Rotating fields, cure under pressure is shaping.
7. preparation method according to claim 6, is characterized in that: described step 2) in, the weight ratio of inorganic adhesive and crushed aggregate of plant is 8:2 ~ 6:4; In described crushed aggregate of plant, order number is that 5 ~ 10 objects account for 40wt%, and 12 ~ 40 objects account for 60wt%.
8. preparation method according to claim 7, is characterized in that: described step 2) in, time of repose is 30min, and the time of fireprotection layer blank natural curing is 12 ~ 24h.
9. preparation method according to claim 6, is characterized in that: described step 3) in, first carry out pretreatment to sawed veneer and be included in its surface spraying stearic acid, quantity for spray is 1 ~ 2g/cm 2, and the two-sided of sawed veneer is carried out inorganic adhesive process described in roller coat, the roller coat amount of inorganic adhesive is 200-300g/m 2, ageing 10 ~ 20min in atmosphere after gluing.
10. preparation method according to claim 9, is characterized in that: described step 3) in, cure under pressure carries out in cold press, and the Stress control of pressurization is at 1.5 ~ 2.0MPa, and pressing time controls at 30 ~ 40min.
CN201410834037.4A 2014-12-29 2014-12-29 A kind of wooden based structures composite and preparation method thereof Active CN104552490B (en)

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CN105216421A (en) * 2015-08-28 2016-01-06 中山市亚美斯电子科技有限公司 A kind of production method of decorative panel
CN105643731A (en) * 2016-01-26 2016-06-08 广州市盈尔安防火材料有限公司 Fireproof marine-grade plywood
WO2018010758A1 (en) * 2016-07-13 2018-01-18 Knauf Gips Kg Non-flammable panel with real wood veneer and method of manufacture
CN111673849A (en) * 2020-06-20 2020-09-18 师宗腾信木业有限责任公司 Method for producing wooden high-strength plywood

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CN105643731B (en) * 2016-01-26 2018-06-29 广州市盈尔安防火材料有限公司 Fire prevention ocean glued board
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AU2016415213B2 (en) * 2016-07-13 2021-09-23 Knauf Gips Kg Non-flammable panel with real wood veneer and method of manufacture
US11453200B2 (en) 2016-07-13 2022-09-27 Knauf Gips Kg Non-flammable panel with real wood veneer and method of manufacture
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