CN110978164A - Composite new material veneer blockboard and manufacturing method thereof - Google Patents

Composite new material veneer blockboard and manufacturing method thereof Download PDF

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Publication number
CN110978164A
CN110978164A CN201911312173.6A CN201911312173A CN110978164A CN 110978164 A CN110978164 A CN 110978164A CN 201911312173 A CN201911312173 A CN 201911312173A CN 110978164 A CN110978164 A CN 110978164A
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Prior art keywords
wood
veneer
composite
pressure
time
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CN201911312173.6A
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Chinese (zh)
Inventor
戴家兵
曾灵
李维虎
杨华永
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Nanning Scisky Technology Co ltd
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Nanning Scisky Technology Co ltd
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Priority to CN201911312173.6A priority Critical patent/CN110978164A/en
Publication of CN110978164A publication Critical patent/CN110978164A/en
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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
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • 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
    • 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
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • 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
    • C09J161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C09J161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • 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
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The invention discloses a method for manufacturing a composite new material veneer blockboard, which comprises the following steps: paving wood shavings or wood fibers uniformly stirred with an adhesive on one board surface of a solid wood veneer or a technical wood veneer, and preparing the wood shavings composite veneer, the wood shavings composite technical wood veneer, the wood fiber composite veneer or the wood fiber composite technical wood veneer through cold pressing and hot pressing; and secondly, coating adhesives on the upper and lower surfaces of the block board, adhering the prepared wood shaving composite veneer, wood shaving composite scientific wood veneer, wood fiber composite veneer or wood fiber composite scientific wood veneer to the upper and lower surfaces of the block board, and cold-pressing and hot-pressing the board blank to prepare the block board with the new composite material veneer. The veneer blockboard prepared by the method has the advantages of good flatness, high surface bonding strength, low water content, dimensional stability, crack resistance, good cold and hot cycle resistance and capability of reducing the production cost.

Description

Composite new material veneer blockboard and manufacturing method thereof
Technical Field
The invention relates to the technical field of blockboard, in particular to a new composite material veneer blockboard and a manufacturing method thereof.
Background
At present, in domestic and foreign markets, the facing materials of the core-board mainly comprise:
1) the wood veneer is 0.10-0.75 mm thick, and the wood species include poplar, peach blossom core wood, sophora japonica and the like;
2) the thickness is 0.2-0.6 mm, such as scientific wood veneer;
3) the thickness is 1~ 3mm high density fiberboard.
The pressing and pasting process of the facing material comprises the following steps: and gluing, cold pressing, hot pressing and other processes are carried out on the upper surface and the lower surface of the block board, and the finished veneer is formed by pressing.
The pressing process utilizes the finished veneer pressed by the two veneer materials 1) and 2) to overcome the defects of poor surface flatness, low surface bonding strength, high water content, dimensional stability, crack resistance, poor cold and hot cycle resistance and the like.
The finished veneer product pressed and pasted by the veneer material 3) has the problems of formaldehyde pollution, lower surface bonding strength, larger water absorption thickness expansion rate, larger thickness, higher production cost and the like.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the veneered blockboard prepared by the method has the advantages of good flatness, high surface bonding strength, low water content, dimensional stability, crack resistance, good cold and hot cycle resistance and capability of reducing the production cost.
The technical scheme adopted by the invention is as follows: the method for manufacturing the laminated wood board with the new composite material veneer comprises the following steps:
paving wood shavings or wood fibers uniformly stirred with an adhesive on one of the surfaces of a solid wood veneer or a technical wood veneer with the thickness of 0.10-3.2 mm, and performing cold pressing and hot pressing to prepare a wood shavings composite veneer, a wood shavings composite technical wood veneer, a wood fiber composite veneer or a wood fiber composite technical wood veneer;
and secondly, coating an adhesive on the upper and lower plate surfaces of the laminated wood board with the thickness of 12-18 mm, the length of 2450-2750 mm and the width of 1230-1310 mm, adhering the prepared wood shaving composite veneer, wood shaving composite scientific wood veneer, wood fiber composite veneer or wood fiber composite scientific wood veneer on the upper and lower plate surfaces of the laminated wood board, and cold-pressing and hot-pressing the board blank to prepare the laminated wood board with the new composite material veneer.
In the first step, the adhesive is a mixture of polyurethane adhesive, formaldehyde-free biomass adhesive, urea-formaldehyde adhesive, phenol adhesive, melamine formaldehyde adhesive, waterproof agent, mildew preventive and tackifier.
The glue application amount of the adhesive in the first step is 7-35% of the weight of the wood shavings or the weight of the wood fibers, when the wood shavings are used, the addition amount of the waterproof agent is 0.05-3.4% of the glue application amount, and the addition amount of the mildew preventive is 0.01-4.5% of the glue application amount; when the wood fiber is used, the addition amount of the waterproof agent is 0.3-0.6% of the sizing amount, and the addition amount of the mildew preventive is 0.1-0.4% of the sizing amount.
The size of the sieve mesh of the wood shavings is within the range of 0.11 x 0.11 mm-1.53 x 1.53mm, the moisture content of the shavings is 0% -3%, and the shavings are dried to 5% -12% after the adhesive is applied; the thickness of the wood fiber is 0.2-0.6 mm, and the water content is 0-9%.
The laying amount of the wood shavings is 0.5kg/m2～3.5kg/m2Paving 1-3 mm thick, and pre-pressing for 5-30 s by using a cold press under the pressure of 0.3-2.5 MPa; the laying amount of the wood fiber is 0.7kg/m2～3.9kg/m2The pavement thickness is uniform, and the cold press is used for prepressing for 5s to 45s, and the pressure is 0.4MPa to 1.3 MPa.
In the first step, the hot pressing temperature of the wood shavings is 105-220 ℃, the pressure and time of the hot pressing are divided into four sections, the first section is as follows: the pressure is 2.2MPa to 2.7MPa, and the time is 1 min to 10 min; and a second stage: the pressure is 0.8MPa to 1.3MPa, and the time is 1 min to 10 min; a third stage: the pressure is 0.7MPa to 0.9MPa, and the time is 1 min to 10 min; a fourth stage: the pressure is 0.0MPa to 0.2MPa, and the time is 1 min to 10 min; the hot pressing temperature of the wood fiber is 110-210 ℃, the pressure and time of the hot pressing are divided into four sections, the first section is as follows: the pressure is 1.7MPa to 1.9MPa, and the time is 5 to 10 min; and a second stage: the pressure is 1.0MPa to 1.2MPa, and the time is 1 min to 5 min; a third stage: the pressure is 0.7MPa to 0.9MPa, and the time is 3 to 6 min; a fourth stage: the pressure is 0.0MPa to 0.5MPa, and the time is 1 min to 5 min.
In the second step, the single-side gluing amount of the blockboard is 100g/m2～180g/m2The cold pressing pressure is 0.4MPa to 0.7MPa, and the time is 30min to 60 min.
The hot pressing temperature in the second step is 100-150 ℃, the hot pressing pressure and time are divided into three sections, the pressure of the first section is 0.7-0.9 MPa, and the time is 3-10 min; the second stage pressure is 0.3 MPa-0.5 MPa, and the time is 1-10 min; the third stage pressure is 0.0-0.3 MPa, and the time is 1-10 min.
The water content of the solid wood veneer or the technical wood veneer is 4% -25%, the species of the solid wood veneer is one of poplar, eucalyptus, peach blossom core wood, sophora japonica and miscellaneous wood, and the species of the technical wood veneer is one of poplar or miscellaneous wood.
The invention also provides the composite new material veneer laminated wood board prepared by the manufacturing method.
Compared with the prior art, the invention has the following advantages:
1. the laminated wood board with the new composite material veneer has the advantages of good flatness, high surface bonding strength, low water content, dimensional stability, crack resistance and good cold and hot cycle resistance.
2. The wood shavings and the wood fibers are glued and compounded by polyurethane adhesive, formaldehyde-free biomass adhesive, urea-formaldehyde adhesive, phenolic adhesive, melamine-formaldehyde adhesive, waterproof agent, mildew preventive, tackifier and the like, the water absorption thickness expansion rate is low, the thickness can be below 1mm, and the production cost is low.
3. The laminated wood board with the new composite material veneer is used as an ecological board substrate, impregnated paper is pressed on the surface of the laminated wood board, the laminated wood board is crack-resistant, cold and heat cycle resistant, good in dimensional stability and capable of being used in cold and dry environments in the north or hot and humid environments in the south.
4. The glue-mixed wood shavings and the wood fibers are directly paved on the surface of the veneer for hot-pressing molding, the surface of the veneer does not need to be coated with glue, and the production cost is saved.
5. The wood shavings and the wood fibers can be prepared from production waste materials such as twigs, small-diameter wood, sawdust and the like, so that waste materials are changed into valuable materials, and the problem of lack of wood raw materials is solved.
6. The wood shaving and wood fiber composite veneer has certain thickness, and the laminated core-board for laminating is reduced in thickness under the condition that the thickness of a finished product is not changed, so that the production cost is saved.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Example 1
The manufacturing method of the composite new material veneer lumber core-board comprises the following steps:
paving wood shavings uniformly stirred with an adhesive on one of the surfaces of a solid wood veneer or a technical wood veneer with the thickness of 1.5mm, and preparing the wood shavings composite veneer or the technical wood veneer by cold pressing and hot pressing, wherein the adhesive is a mixture of a polyurethane adhesive, an aldehyde-free biomass adhesive, a urea-formaldehyde adhesive, a phenolic adhesive, a melamine-formaldehyde adhesive, a waterproof agent, a mildew preventive and a tackifier, the water content of the solid wood veneer or the technical wood veneer is 15%, the wood species of the solid wood veneer is one of poplar, eucalyptus, peach-core wood, sophora japonica and miscellaneous trees, and the wood species of the technical wood veneer is one of poplar or miscellaneous trees. The surface of the solid wood veneer or the scientific wood skin has no appearance defects such as dead knots, holes, cracking, overlapping, decay and the like. The glue application amount of the adhesive is 3% of the weight of the wood shavings, the addition amount of the waterproof agent is 1.5% of the glue application amount, the addition amount of the mildew preventive agent is 3% of the glue application amount, the wood shavings and wood species can be adopted except for paulownia trees, the size of a screen mesh of the wood shavings is within the range of 0.11mm to 1.53mm, the moisture content of the wood shavings is 2%, and the wood shavings are dried to 4% after the adhesive is applied. The laying amount of the wood shavings was 3kg/m2And paving the pavement with the thickness of 2mm, and pre-pressing the pavement for 20s by using a cold press at the pressure of 1 MPa. The hot pressing temperature is 105 ℃, the pressure and the time of the hot pressing are divided into four sections, wherein the first section is as follows: pressure 2.7MPa, the time is 5 min; and a second stage: the pressure is 2MPa, and the time is 5 min; a third stage: the pressure is 0.7MPa, and the time is 5 min; a fourth stage: the pressure is 0.2MPa, and the time is 5 min.
And secondly, coating an adhesive on the upper and lower plate surfaces of the block board with the thickness of 12mm, the length of 2750mm and the width of 1310mm, sticking the prepared wood shaving composite veneer or wood shaving composite scientific wood veneer on the upper and lower plate surfaces of the block board, and preparing the block board into the new wood shaving composite material veneer through high-temperature hot pressing after cold pressing. The single-side gluing amount of the blockboard is 100g/m2The cold pressing pressure is 0.7MPa, and the time is 60 min. The hot pressing temperature is 150 ℃, the hot pressing pressure and time are divided into three sections, the first section pressure is 0.7MPa, and the time is 10 min; the second stage pressure is 0.3MPa, and the time is 10 min; the third stage pressure is 0.3MPa, and the time is 10 min.
Example 2
The manufacturing method of the composite new material veneer lumber core-board comprises the following steps:
paving wood fibers uniformly stirred with an adhesive on one of the surfaces of a solid wood veneer or a technical wood veneer with the thickness of 3.2mm, and preparing the wood fiber composite veneer or the wood fiber composite technical wood veneer through cold pressing and hot pressing; the adhesive is a mixture of polyurethane adhesive, formaldehyde-free biomass adhesive, urea-formaldehyde adhesive, phenol-formaldehyde adhesive, melamine-formaldehyde adhesive, waterproof agent, mildew preventive and tackifier. The glue application amount of the adhesive is 2 percent of the weight of the wood fiber, the addition amount of the waterproof agent is 0.3 percent of the glue application amount, and the addition amount of the mildew preventive agent is 0.4 percent of the glue application amount. The water content of the solid wood veneer or the technical wood veneer is 20 percent, the species of the solid wood veneer is one of poplar, eucalyptus, peach blossom core wood, sophora japonica and miscellaneous wood, and the species of the technical wood veneer is one of poplar or miscellaneous wood. The thickness of the wood fiber is 0.6mm, and the water content is 6%. The hot pressing temperature is 100 ℃, the pressure and the time of the hot pressing are divided into four sections, the first section is that: the pressure is 1.9MPa, and the time is 5 min; and a second stage: the pressure is 1.2MPa, and the time is 5 min; a third stage: the pressure is 0.9MPa, and the time is 6 min; a fourth stage: the pressure is 0.5MPa, and the time is 3 min. The wood fiber laying amount was 3.5kg/m2And the pavement thickness is uniform, and the cold press is used for prepressing for 25s, and the pressure is 1 MPa.
And secondly, coating adhesives on the upper and lower plate surfaces of the laminated wood board with the thickness of 16mm, the length of 2450mm and the width of 1230mm, sticking the prepared wood fiber composite veneer or wood fiber composite scientific wood veneer on the upper and lower plate surfaces of the laminated wood board, and cold-pressing and hot-pressing the board blank to prepare the laminated wood board with the new composite material veneer. The single-side gluing amount of the blockboard is 150g/m2The cold pressing pressure is 0.5MPa, and the time is 50 min. The hot pressing temperature is 120 ℃, the hot pressing pressure and time are divided into three sections, the first section pressure is 0.9MPa, and the time is 8 min; the second stage pressure is 0.5MPa, and the time is 5 min; the third stage pressure is 0.2MPa, and the time is 8 min.
The invention also provides the wood shaving composite new material facing blockboard and the wood fiber composite new material facing blockboard which are prepared by the manufacturing methods of the two embodiments, and the prepared blockboard has the advantages of better flatness, high surface bonding strength, lower water content, dimensional stability, crack resistance and good cold and hot cycle resistance.
The detection performance of the veneered blockboard prepared by the two examples is as follows:
example 1
Figure BDA0002324809770000051
Figure BDA0002324809770000061
Example 2
Figure BDA0002324809770000062

Claims (10)

1. The manufacturing method of the composite new material veneer lumber core-board is characterized by comprising the following steps:
paving wood shavings or wood fibers uniformly stirred with an adhesive on one of the surfaces of a solid wood veneer or a technical wood veneer with the thickness of 0.10-3.2 mm, and performing cold pressing and hot pressing to prepare a wood shavings composite veneer, a wood shavings composite technical wood veneer, a wood fiber composite veneer or a wood fiber composite technical wood veneer;
and secondly, coating an adhesive on the upper and lower plate surfaces of the laminated wood board with the thickness of 12-18 mm, the length of 2450-2750 mm and the width of 1230-1310 mm, adhering the prepared wood shaving composite veneer, wood shaving composite scientific wood veneer, wood fiber composite veneer or wood fiber composite scientific wood veneer on the upper and lower plate surfaces of the laminated wood board, and cold-pressing and hot-pressing the board blank to prepare the laminated wood board with the new composite material veneer.
2. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: in the first step, the adhesive is a mixture of polyurethane adhesive, formaldehyde-free biomass adhesive, urea-formaldehyde adhesive, phenol adhesive, melamine formaldehyde adhesive, waterproof agent, mildew preventive and tackifier.
3. The method of manufacturing a composite new material faced blockboard as claimed in claim 2, wherein: the glue application amount of the adhesive in the first step is 7-35% of the weight of the wood shavings or the weight of the wood fibers, when the wood shavings are used, the addition amount of the waterproof agent is 0.05-3.4% of the glue application amount, and the addition amount of the mildew preventive is 0.01-4.5% of the glue application amount; when the wood fiber is used, the addition amount of the waterproof agent is 0.3-0.6% of the glue application amount, and the addition amount of the mildew preventive agent is 0.1-0.4% of the glue application amount.
4. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: the size of a sieving net of the wood shavings is within the range of 0.11 x 0.11 mm-1.53 x 1.53mm, the moisture content of the wood shavings is 0% -3%, and the wood shavings are dried to 5% -12% after an adhesive is applied; the thickness of the wood fiber is 0.2-0.6 mm, and the water content is 0% -9%.
5. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: the laying amount of the wood shavings is 0.5kg/m2~3.5kg/m2Paving the pavement with the thickness of 1-3 mm, and prepressing the pavement for 5-30 s by using a cold press at the pressure of 0.3-2.5 MPa; the wood isThe fiber lay-up was 0.7kg/m2~3.9kg/m2And the pavement thickness is uniform, and the cold press is used for prepressing for 5 s-45 s and the pressure is 0.4 MPa-1.3 MPa.
6. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: in the first step, the hot pressing temperature of the wood shavings is 105-220 ℃, the pressure and time of the hot pressing are divided into four sections, the first section is as follows: the pressure is 2.2MPa to 2.7MPa, and the time is 1 to 10 min; and a second stage: the pressure is 0.8MPa to 1.3MPa, and the time is 1 to 10 min; a third stage: the pressure is 0.7MPa to 0.9MPa, and the time is 1 min to 10 min; a fourth stage: the pressure is 0.0 MPa-0.2 MPa, and the time is 1-10 min; the hot pressing temperature of the wood fiber is 110-210 ℃, the pressure and time of the hot pressing are divided into four sections, the first section is as follows: the pressure is 1.7MPa to 1.9MPa, and the time is 5 to 10 min; and a second stage: the pressure is 1.0MPa to 1.2MPa, and the time is 1 min to 5 min; a third stage: the pressure is 0.7MPa to 0.9MPa, and the time is 3 to 6 min; a fourth stage: the pressure is 0.0MPa to 0.5MPa, and the time is 1 min to 5 min.
7. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: in the second step, the single-side gluing amount of the blockboard is 100g/m2~180g/m2The cold pressing pressure is 0.4 MPa-0.7 MPa, and the time is 30 min-60 min.
8. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: the hot pressing temperature in the second step is 100-150 ℃, the hot pressing pressure and time are divided into three sections, the pressure in the first section is 0.7-0.9 MPa, and the time is 3-10 min; the second stage pressure is 0.3 MPa-0.5 MPa, and the time is 1-10 min; the third stage pressure is 0.0 MPa-0.3 MPa, and the time is 1-10 min.
9. The method of manufacturing a composite new material faced blockboard as claimed in claim 1, wherein: the water content of the solid wood veneer or the technical wood veneer is 4% -25%, the species of the solid wood veneer is one of poplar, eucalyptus, peach blossom core wood, sophora japonica and miscellaneous wood, and the species of the technical wood veneer is one of poplar or miscellaneous wood.
10. A composite new material faced blockboard made by the manufacturing method of any one of claims 1 to 9.
CN201911312173.6A 2019-12-18 2019-12-18 Composite new material veneer blockboard and manufacturing method thereof Withdrawn CN110978164A (en)

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