CN106239692A - A kind of orientation wood-plastic composite particleboard and manufacture method thereof - Google Patents
A kind of orientation wood-plastic composite particleboard and manufacture method thereof Download PDFInfo
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- CN106239692A CN106239692A CN201610813574.XA CN201610813574A CN106239692A CN 106239692 A CN106239692 A CN 106239692A CN 201610813574 A CN201610813574 A CN 201610813574A CN 106239692 A CN106239692 A CN 106239692A
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- wood
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- plastic composite
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- 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
- 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
-
- 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
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
Abstract
A kind of orientation wood-plastic composite particleboard, prepare wood-plastic clad plate slab thickness direction for the existing pressure sintering of solution and easily occur that plastic sheeting is assembled and undaform Vertical density gradient, the problem of Wood plastic boards comprehensive mechanical property difference, and then a kind of oriented multilayer wood-plastic clad plate is proposed.Its component and percetage by weight be: wood material accounts for 70～95%；Thermoplastic accounts for 4～30%；Coupling agent accounts for 0.5～2%；Described orientation wood-plastic composite particleboard has multiple structure, and each layer is orienting spreading and prepares in described multiple structure, described multiple structure has bottom, intermediate layer and top layer, described bottom and described top layer use the mixture of wooden shavings and plastic tab to mat formation and form, and described intermediate layer uses the mixture of straw wood shavings and plastic tab to mat formation and forms.MOR of the present invention, the modulus of elasticity in static bending, shock resistance, surface smoothness and aesthetic property are the most superior, improve the comprehensive mechanical property of Wood plastic boards product, add added value of product.Present invention also offers the manufacture method of orientation wood-plastic composite particleboard.
Description
Technical field
The present invention relates in the preparation method of a kind of wood plastic composite, be specifically related to a kind of orientation wood-plastic composite particleboard
And manufacture method, the especially preparation method of large scale wood particle oriented multilayer wood-plastic clad plate.
Background technology
Wood plastic composite is one of fastest-rising advanced polymer composites of field of compound material.Extrusion, injection
It is three kinds of main methods producing wood plastic composite with hot pressing, but extrusion and injection limits the size of its product,
Therefore pressure sintering is the best practice producing large format wood plastic composite.
The wooden raw-material size of existing wood plastic composite manufacturing requirements is sufficiently small, industry generally use 40～
The powdery wood fibre of 100 mesh, raw-material pulverizing not only increases energy consumption, and is the source of dust pollution and sound pollution
Spring.Use large scale raw material, the prototype structure of raw material can be kept to be destroyed less, thus be conducive to increasing the properties of product,
And the effect of energy-saving and noise-reducing can be played.
The primary raw material of wood plastic composite includes wood material and plastics, and on cost, the price of plastics is higher than wooden
The price of raw material, therefore improves the content of wood material in product and can reduce the cost of product.But, existing wood and plastic composite
In material, the mass fraction of wood material is typically 20% to 50%, and when wood material content is higher than 50%, wood material mixes with plastics
The poor fluidity of compound, relatively big with the frictional resistance of equipment tube wall, cause the defects such as product lack of homogeneity and face checking, therefore
How to improve the content of wood material in wood plastic composite by new technique and become emphasis and the focus of research.
During conventional thermal platen press produces wood-plastic composite (WPC), the density of plastic grain is close more than wood material
Degree, thus in mixed process, the wood material that plastics that density is big are little with density is difficult to mix homogeneously, and is even mating formation and hot
During pressure, the plastic grain that density is big will slide leakage to the bottom of slab, thus causes plastic content and density at product thickness
Skewness on direction.Although long size wood material is conducive to increasing the performance of final products, but uses grain plastic to cause
Above-mentioned sliding leakage and skewness phenomenon become apparent from.Chinese invention patent CN103659946 disclosed orientation wood-plastic clad plate, its
Use plastic sheeting substituted for plastic granule to avoid the sliding leakage of grain plastic to a certain extent, but plastic sheeting manufactures wood being used for
Easily occur during plastic composite board assembling on the thickness direction of slab, thus undaform Vertical density gradient (VDP) can be formed,
Therefore it is similarly difficult to prepare homogeneous wood-plastic composite panel.
Summary of the invention
In order to overcome present in prior art wood-plastic clad plate preparation process because wood material size is little, content is low, mould
The utilization of resources that material and Density Distribution inequality are brought is unreasonable, energy expenditure big, the problem of Wood plastic boards comprehensive mechanical property difference,
Disclosure sets forth a kind of orientation wood-plastic composite particleboard and manufacture method thereof, thin with large scale wood particle and thermoplastic
Sheet is primary raw material, the most multi-layer oriented production technology mated formation after using plastic tab to mix with large scale wood particle, gram
Take Traditional Wood plastic composite materials preparation technology and the defect of product, prepare that wood material size is big, content is high, product physical mechanics
The large format orientation wood-plastic clad plate that performance is good, this sheet material is widely used in building, furniture and packaging material field potentiality.
The technical solution adopted in the present invention is: a kind of orientation wood-plastic composite particleboard, and its component and percetage by weight be:
Wood material accounts for 69～94%；Thermoplastic accounts for 4～30%；Coupling agent accounts for 1～2%；Described orientation wood-plastic composite particleboard has
In multiple structure, and described multiple structure each layer be orienting spreading prepare, described multiple structure have bottom, intermediate layer and
Top layer, described bottom and described top layer use the mixture of wooden shavings and plastic tab to mat formation and form, and described intermediate layer uses
The mixture of straw wood shavings and plastic tab is mated formation and is formed.
Preferably: the intermediate layer of described multilamellar is oriented to mat formation by orienting device and forms, and described intermediate layer has
Some lamellas, total number of plies of described lamella is odd number, and symmetrical along sheet material central plane, in described some lamellas adjacent two layers it
Between direction of mating formation overall the most in vertical direction.
Preferably: described bottom and described top layer all are oriented to mat formation by orienting device and form, described top layer and
The direction of mating formation of described bottom is totally in parallel relation.
Preferably: described wooden shavings is Aspen wood shavings, its a length of 60～100mm, width is 15～20mm, thickness
It is 0.2～0.5mm；Described plastic tab a length of 60～100mm, width is 15～20mm, and thickness is 0.05～0.2mm；Enter
One step is preferably: a length of 80mm of described plastic tab, width is 20mm, and thickness is 0.1mm.
A kind of the technical scheme is that step of manufacture method orienting wood-plastic composite particleboard provided by the present invention
One, wood material is got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening process growth 20～
200mm, wide 2～20mm, thick 0.1～2mm specification wood wool standby；By straw by chipping, roll, in sawing and screening
One or more modes process grow up 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification standby；
Step 2, pretreatment of raw material: described wood material is carried out high temperature drying or hot-water extraction processes or combination, and
The moisture content of wood material is dried to less than 10%, reduces the surface energy of wood material simultaneously；Then spraying method is used to account for
Orientation wood-plastic composite particleboard quality 1～2% liquid coupling agent be applied on pretreated wood material；
Step 3, prepare plastic tab: thermoplastics processing becomes a length of 60～100mm, and width is 15～20mm, thickness
It is the thermoplastic plastic foil of 0.05～0.2mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 4～30% be divided into
Two parts, it is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool and plastic tab
The mixture of mixture and straw wood shavings and plastic tab；
Step 5, multi-layer oriented mat formation: by thin with plastics with the mixture of plastic tab and described straw wood shavings for described wood wool
The mixture of sheet carries out being layered orienting spreading, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab put in flat-bed press at 120～220 DEG C hot pressing 3～
20 minutes, it is passed through 5～25 DEG C of cold water to hot press heating plate afterwards or proceeds to slab cold pressing to room temperature press, treating plate
Base temperature is down to when 30～60 DEG C take out；
Step 7, post-production: display after carrying out cutting edge and surface process.
Preferably: orienting spreading described in step 5 includes step in detail below:
A, orienting spreading bottom: wood wool and the mixture of plastic tab are oriented acquisition of mating formation have certain thickness fixed
To bottom of mating formation；
B, orienting spreading last layer: on described orienting spreading bottom, change orienting spreading direction, with described orienting spreading bottom
Angle is the mixture of straw wood shavings described in vertical relation superposition orienting spreading and plastic tab；
C, complete slab orienting spreading: repeat b step several times, until completing to have mating formation of certain thickness and the number of plies, then with
The mixture of wood wool and plastic tab carries out top layer and mats formation, and is finally completed plate blank paving.
Preferably: step 4 is mixed with per minute 10 speed going to 60 turns by inclined shaft cylinder, to mixing all
Even；In step 5, raw mixture is oriented to mat formation and refers to mutually overlap and superposition, with raw mixture raw mixture
Length direction is mated formation with axially becoming 0～30 degree of angle.
Preferably: described in step 5 multi-layer oriented mat formation in each layer when mating formation the orientation direction of raw mixture parallel
Or it is axial to be perpendicular to slab, overlaying structure is symmetrical at slab central plane simultaneously.
Preferably: the thermoplastic described in step 3 is high density polyethylene (HDPE), Low Density Polyethylene, high density poly-third
In alkene, polrvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene resin, nylon, polylactic acid, polyhydroxyalkanoate
One or more；Described thermoplastic is primary material or the reworked material of recovered acquisition.
Preferably: the breadth a length of 400～2440mm of multiple-layer stacked orientation slab described in step 5, width is 400
～1220mm；Multiple-layer stacked is oriented slab when putting in flat-bed press described in step 7, limit flat-bed press pressing plate
Thickness be 6～55mm.
Use technical scheme of the present invention can improve the usage amount of wood material, it is achieved the big use of little material, the excellent use of bad material,
Can be used for preparing high performance wood plastic composite, wood material and plastics are evenly dispersed simultaneously, and interior mechanics performance is more steady
Fixed, effectively avoid plastic sheeting gathering and undaform Vertical density gradient that slab thickness direction easily occurs, overcome existing
Have present in technology wood-plastic clad plate preparation process because wood material size is little, content is low, plastics and Density Distribution inequality band
The utilization of resources come is unreasonable, energy expenditure big, the problem of Wood plastic boards comprehensive mechanical property difference；Simultaneously because top layer uses wood
The mixture of material wood shavings and plastic tab is mated formation and is formed, and intermediate layer uses the mixture of straw wood shavings and plastic tab to mat formation and
Become, be conducive to improving further the shock resistance of wood-plastic composite panel, and the surface that can be effectively improved wood-plastic composite panel is put down
Whole degree and aesthetic property, improve Wood plastic boards product comprehensive mechanical property and achieve bad material excellent with, add product add
Value.
Accompanying drawing explanation
Fig. 1 is the preparation section of orientation wood-plastic composite particleboard.
Fig. 2 is that orientation wood-plastic clad plate oriented multilayer is mated formation structure of plate slab schematic diagram.
Fig. 3 is the slab schematic diagram after wood-plastic clad plate oriented multilayer has been mated formation.
Fig. 4 be the MOR of five kinds of sheet materials described in embodiment 1 to embodiment 5, the modulus of elasticity in static bending, internal bond strength and
Thickness swelling rate schematic diagram.
Detailed description of the invention
The detailed description of the invention of the present invention is described below in conjunction with the accompanying drawings.
Detailed description of the invention 1: combine Fig. 2 and Fig. 3 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Closing particieboard, its component and percetage by weight be: wood material accounts for 69～94%；Thermoplastic accounts for 4～30%；Coupling agent accounts for 1
～2%；Described orientation wood-plastic composite particleboard has each layer in multiple structure, and described multiple structure and is orienting spreading system
, described multiple structure has bottom, intermediate layer and top layer, described bottom and described top layer and uses wooden shavings and plastic tab
Mixture mat formation and form, described intermediate layer uses the mixture of straw wood shavings and plastic tab to mat formation and forms.
Present embodiment have the technical effect that the usage amount that can improve wood material, it is achieved little material is big excellent with, bad material
With, can be used for preparing high performance wood plastic composite, wood material and plastics are evenly dispersed simultaneously, and interior mechanics performance is more
Stable, effectively avoid plastic sheeting gathering and undaform Vertical density gradient that slab thickness direction easily occurs, overcome
Present in prior art wood-plastic clad plate preparation process because wood material size is little, content is low, plastics and Density Distribution uneven
The utilization of resources brought is unreasonable, energy consumption big, the problem of Wood plastic boards comprehensive mechanical property difference；Simultaneously because top layer uses timber
The mixture of wood shavings and plastic tab is mated formation and is formed, and intermediate layer uses the mixture of straw wood shavings and plastic tab to mat formation and
Become, be conducive to improving further the shock resistance of wood-plastic composite panel, and the surface that can be effectively improved wood-plastic composite panel is put down
Whole degree and aesthetic property, improve Wood plastic boards product comprehensive mechanical property and achieve bad material excellent with, add product add
Value.
Detailed description of the invention 2: combine Fig. 2 and Fig. 3 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Closing particieboard, the intermediate layer of described multilamellar is oriented to mat formation by orienting device and forms, and described intermediate layer has some lamellas,
Total number of plies of described some lamellas is odd number, and along the central axial symmetry of sheet material, in described some lamellas between adjacent two layers
Mat formation direction the most in vertical direction.Other are identical with detailed description of the invention 1.
Present embodiment have the technical effect that owing to intermediate layer has some lamellas, can be from macroscopically making wood-plastic clad plate
The mechanical index such as the MOR of material, the modulus of elasticity in static bending, internal bond strength are comprehensively improved, and the water sucting thickness making sheet material is swollen
Swollen rate decreases, and then makes the performance of wood-plastic composite panel more superior；Owing to total number of plies of some lamellas is odd number, and edge
Even if the central axial symmetry of sheet material makes sheet material the most also be not easy because internal stress is unbalanced and buckling deformation occurs, keep away
During exempting to use, fault in material occurs.
Detailed description of the invention 3: combine Fig. 2 and Fig. 3 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Closing particieboard, described bottom and described top layer all are oriented to mat formation by orienting device and form, described top layer and described bottom
Direction of mating formation totally in parallel relation.Other are identical with detailed description of the invention 1 or 2.
The direction of mating formation having the technical effect that described top layer and described bottom of present embodiment is totally in parallel relation, no
Only be beneficial to material processing, it is ensured that its mechanical property, be more beneficial for sheet material in Furniture manufacture to texture towards selection and conjunction
Reason uses, and improves value-added content of product.
Detailed description of the invention 4: combine Fig. 2 and Fig. 3 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Close particieboard, described wooden shavings is Aspen wood shavings, its a length of 60～100mm, width is 15～20mm, thickness be 0.2～
0.5mm；Described plastic tab a length of 60～100mm, width is 15～20mm, and thickness is 0.05～0.2mm.Other are with concrete
Any one of embodiment 1～3 identical.
The Aspen wood shavings having the technical effect that this yardstick of employing of present embodiment and the plastic tab of particular dimensions can
To reduce raw-material cost, and prepare the wood-plastic composite particleboard that stable mechanical property, apparent property are superior.
Detailed description of the invention 5: combine Fig. 1 and Fig. 2 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Close the manufacture method of particieboard, comprise the following steps:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 20～200mm, wide 2～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing and
One or more modes in screening process grow up 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification standby
With；
Step 2, pretreatment of raw material: described wood material is carried out high temperature drying or hot-water extraction processes or combination, and
The moisture content of wood material is dried to less than 10%；Then use spraying method will account for orient wood-plastic composite particleboard quality 1～
The liquid coupling agent of 2% is applied on pretreated wood material；
Step 3, prepare plastic tab: thermoplastics processing becomes a length of 60～100mm, and width is 15～20mm, thickness
It is the thermoplastic plastic foil of 0.05～0.2mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 4～30% be divided into
Two parts, it is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool and plastic tab
The mixture of mixture and straw wood shavings and plastic tab；
Step 5, multi-layer oriented mat formation: by thin with plastics with the mixture of plastic tab and described straw wood shavings for described wood wool
The mixture of sheet carries out being layered orienting spreading, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab put in flat-bed press at 120～220 DEG C hot pressing 3～
20 minutes, it is passed through 5～25 DEG C of cold water to hot press heating plate afterwards or proceeds to slab cold pressing to room temperature press, treating plate
Base temperature is down to when 50～60 DEG C take out；
Step 7, post-production: display after carrying out cutting edge and surface process.
Present embodiment have the technical effect that the usage amount that can improve wood material, it is achieved little material is big excellent with, bad material
With, can be used for preparing high performance wood plastic composite, wood material and plastics are evenly dispersed simultaneously, and interior mechanics performance is more
Stable, effectively avoid plastic sheeting gathering and undaform Vertical density gradient that slab thickness direction easily occurs, overcome
Present in prior art wood-plastic clad plate preparation process because wood material size is little, content is low, plastics and Density Distribution uneven
The utilization of resources brought is unreasonable, energy expenditure big, the problem of Wood plastic boards comprehensive mechanical property difference；Simultaneously because top layer uses
The mixture of wooden shavings and plastic tab is mated formation and is formed, and the mixture that intermediate layer uses straw wood shavings and plastic tab is mated formation
Form, be conducive to improving further the shock resistance of wood-plastic composite panel, and the surface of wood-plastic composite panel can be effectively improved
Flatness and aesthetic property, improve Wood plastic boards product comprehensive mechanical property and achieve bad material excellent with, to add product attached
Value added.
Detailed description of the invention 6: combine Fig. 1 and Fig. 2 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded multiple
Closing the manufacture method of particieboard, orienting spreading described in step 5 includes step in detail below:
A, orienting spreading bottom: wood wool and the mixture of plastic tab are oriented acquisition of mating formation have certain thickness fixed
To bottom of mating formation；
B, orienting spreading last layer: on described orienting spreading bottom, change orienting spreading direction, with described orienting spreading bottom
Angle is the mixture of straw wood shavings described in vertical relation superposition orienting spreading and plastic tab；
C, complete slab orienting spreading: repeat b step several times, until completing to have mating formation of certain thickness and the number of plies, then with
The mixture of wood wool and plastic tab carries out top layer and mats formation, and is finally completed plate blank paving.Other and detailed description of the invention 5 phase
With.
Present embodiment have the technical effect that due to use the multi-layer oriented mode mated formation, from macroscopically making wood plastics composite
The mechanical index such as the MOR of sheet material, the modulus of elasticity in static bending, internal bond strength have obtained comprehensive improvement, and the water suction making sheet material is thick
Degree expansion rate decreases, and then makes the performance of wood-plastic composite panel more superior.
Detailed description of the invention 7: combine Fig. 1, Fig. 2 and Fig. 3 and present embodiment is described, a kind of orientation wood described in present embodiment
Moulding the manufacture method of laminated particle-board, step 4 is mixed, extremely with per minute 10 speed going to 60 turns by inclined shaft cylinder
Mix homogeneously；In step 5, raw mixture is oriented to mat formation and refers to mutually overlap and superposition, with raw material raw mixture
Mixture length direction is mated formation with axially becoming 0～30 degree of angle.Other are identical with detailed description of the invention 5 or 6.
Present embodiment have the technical effect that employing inclined shaft cylinder can with the quality of Appropriate application wood materials itself and heavily
Power realizes mixing, and using per minute 10 speed going to 60 turns to avoid and decrease as far as possible, that mechanical mixture is likely to result in is wooden former
The probability that material is the most damaged, and then ensure that the physical and mechanical property of wood material does not decline in mixed process, with
Time can mix homogeneously by plastic tab and wood material；Mutually overlap joint superposition can increase raw mixture in hot pressing
Mechanical interlocked in journey, also can further rely on the chemical bond between wood material and wood material and realize sheet material mechanical property
Lifting.
Detailed description of the invention 8: combine Fig. 1, Fig. 2 and Fig. 3 and present embodiment is described, a kind of orientation wood described in present embodiment
Mould the manufacture method of laminated particle-board, described in step 5 multi-layer oriented mat formation in each layer orientation side of raw mixture when mating formation
Axial to being parallel or perpendicular to slab, overlaying structure is symmetrical at slab central plane simultaneously.Other are with detailed description of the invention 5～7
Any one of identical.
Present embodiment have the technical effect that improve sheet material mechanical property while, the water resistance of sheet material is mentioned
Promote greatly, and product surface smooths.
Detailed description of the invention 9: combine Fig. 1 and present embodiment is described, the thermoplastic described in step 3 is that high density is gathered
Ethylene, Low Density Polyethylene, high density poly propylene, polrvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene resin, Buddhist nun
One or more in dragon, polylactic acid, polyhydroxyalkanoate；Described thermoplastic be primary material or recovered acquisition again
Raw material.Other are identical any one of with detailed description of the invention 5～8.
Having the technical effect that of present embodiment makes waste or used plastics be used appropriately, decrease the wasting of resources, it is to avoid need not
The environmental pollution wanted, it is achieved that waste or used plastics and the comprehensive utilization of wooden resource.
Detailed description of the invention 10: combine Fig. 1, Fig. 2 and Fig. 3 and present embodiment is described, a kind of orientation described in present embodiment
The manufacture method of wood-plastic composite particleboard, the breadth a length of 400～2440mm of multiple-layer stacked orientation slab, wide described in step 5
Degree is 400～1220mm；Multiple-layer stacked is oriented slab when putting in flat-bed press described in step 7, limit flat board hot pressing
The thickness of machine pressing plate is 6～45mm.Other are identical any one of with detailed description of the invention 5～9.
Large-scale industrial production is easy in having the technical effect that of present embodiment, is also beneficial to utilize existing furniture system
Make pushing away of industry, packaging industry, machining equipment that woodwork processing industry is general, beneficially oriented multilayer wood-plastic composite panel
Wide and universal.
Detailed description of the invention 11: combine Fig. 2 and Fig. 3 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded
Laminated particle-board, a length of 80mm of described plastic tab, width is 20mm, and thickness is 0.1mm；Other are with detailed description of the invention 4
Identical.
The wood that the having the technical effect that of present embodiment is conducive to preparing stable mechanical property, apparent property superior is moulded multiple
Close particieboard.
Detailed description of the invention 12: combine Fig. 1 and Fig. 2 and present embodiment is described, described in present embodiment, a kind of orientation wood is moulded
The manufacture method of laminated particle-board, is dried the moisture content of wood material to less than 5% in described step 2；Other are with concrete
Embodiment 5 is identical.
Use following embodiment verify effect of the present invention:
Embodiment 1:
The present embodiment is prepared for poplar/straw directional composite, and processing step is:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 60～100mm, wide 15～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing
Growth 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification are processed with one or more modes in screening
Standby；
Step 2, pretreatment of raw material: by the moisture content high temperature drying of wood material to 8%；Then spraying method is used will to account for orientation
Wood-plastic composite particleboard quality 1～2% the trade mark be PM200, NCO group accounts for polymerization benzhydryl propane two isocyanide of 30-32%
Acid esters liquid coupling agent is applied on pretreated wood material；
Step 3, cylinder mix: wood wool and straw wood shavings are mixed through cylinder respectively, obtain the mixing of uniform wood wool
Thing and straw wood shavings mixture；
Step 4, multi-layer oriented mat formation: the upper and lower surface at slab places processing release paper, and uses finger gauge to control target thickness,
Carry out described wood wool mixture and described straw wood shavings mixture being layered orienting spreading, it is thus achieved that multiple-layer stacked orientation slab；
Step 5, hot pressing and cold pressing: multiple-layer stacked is oriented slab and puts into hot pressing at 180 DEG C in flat-bed press, in hot pressing
During 300s, pressure is reduced to zero and keeps zero pressure 30s that slab is exitted, hot pressing of boosting the most again, hot pressing 12 points altogether
Clock；Proceeding to slab afterwards cold pressing to room temperature press, pressure is 1MPa, takes when board briquette is down to 50～60 DEG C
Go out；
Step 6, post-production: display after carrying out cutting edge and surface process.
Embodiment 2:
The present embodiment is prepared for poplar/straw-high density polyethylene (HDPE) directional composite, and processing step is:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 60～100mm, wide 15～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing
Growth 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification are processed with one or more modes in screening
Standby；
Step 2, pretreatment of raw material: by the moisture content high temperature drying of wood material to 8%；Then spraying method is used will to account for orientation
Wood-plastic composite particleboard quality 1～2% the trade mark be PM200, NCO group accounts for polymerization benzhydryl propane two isocyanide of 30-32%
Acid esters liquid coupling agent is applied on pretreated wood material；
Step 3, prepare plastic tab: high-density polyethylene plastics processing film is become a length of 80mm, and width is 20mm, thick
Degree is the thermoplastic plastic foil of 0.1mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 4% is divided into two parts,
It is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool and the mixture of plastic tab
Mixture with straw wood shavings Yu plastic tab；
Step 5, multi-layer oriented mat formation: the upper and lower surface at slab places processing release paper, and uses finger gauge to control target thickness,
Described wood wool is carried out layering orientation paving with the mixture of plastic tab and the mixture of described straw wood shavings and plastic tab
Dress, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab and puts into hot pressing at 180 DEG C in flat-bed press, in hot pressing
During 300s, pressure is reduced to zero and keeps zero pressure 30s that slab is exitted, hot pressing of boosting the most again, hot pressing 12 points altogether
Clock；Proceeding to slab afterwards cold pressing to room temperature press, pressure is 1MPa, takes when board briquette is down to 50～60 DEG C
Go out；
Step 7, post-production: display after carrying out cutting edge and surface process.
Embodiment 3:
The present embodiment is prepared for poplar/straw-high density polyethylene (HDPE) directional composite, and processing step is:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 60～100mm, wide 15～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing
Growth 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification are processed with one or more modes in screening
Standby；
Step 2, pretreatment of raw material: by the moisture content high temperature drying of wood material to 8%；Then spraying method is used will to account for orientation
Wood-plastic composite particleboard quality 1～2% the trade mark be PM200, NCO group accounts for polymerization benzhydryl propane two isocyanide of 30-32%
Acid esters liquid coupling agent is applied on pretreated wood material；
Step 3, prepare plastic tab: high-density polyethylene plastics processing film is become a length of 80mm, and width is 20mm, thick
Degree is the thermoplastic plastic foil of 0.1mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 8% is divided into two parts,
It is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool and the mixture of plastic tab
Mixture with straw wood shavings Yu plastic tab；
Step 5, multi-layer oriented mat formation: the upper and lower surface at slab places processing release paper, and uses finger gauge to control target thickness,
Described wood wool is carried out layering orientation paving with the mixture of plastic tab and the mixture of described straw wood shavings and plastic tab
Dress, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab and puts into hot pressing at 180 DEG C in flat-bed press, in hot pressing
During 300s, pressure is reduced to zero and keeps zero pressure 30s that slab is exitted, hot pressing of boosting the most again, hot pressing 12 points altogether
Clock；Proceeding to slab afterwards cold pressing to room temperature press, pressure is 1MPa, takes when board briquette is down to 50～60 DEG C
Go out；
Step 7, post-production: display after carrying out cutting edge and surface process.
Embodiment 4:
The present embodiment is prepared for poplar/straw-high density polyethylene (HDPE) directional composite, and processing step is:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 60～100mm, wide 15～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing
Growth 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification are processed with one or more modes in screening
Standby；
Step 2, pretreatment of raw material: by the moisture content high temperature drying of wood material to 8%；Then spraying method is used will to account for orientation
Wood-plastic composite particleboard quality 1～2% the trade mark be PM200, NCO group accounts for polymerization benzhydryl propane two isocyanide of 30-32%
Acid esters liquid coupling agent is applied on pretreated wood material；
Step 3, prepare plastic tab: high-density polyethylene plastics processing film is become a length of 80mm, and width is 20mm, thick
Degree is the thermoplastic plastic foil of 0.1mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 12% is divided into two
Part, it is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool is mixed with plastic tab
The mixture of compound and straw wood shavings and plastic tab；
Step 5, multi-layer oriented mat formation: the upper and lower surface at slab places processing release paper, and uses finger gauge to control target thickness,
Described wood wool is carried out layering orientation paving with the mixture of plastic tab and the mixture of described straw wood shavings and plastic tab
Dress, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab and puts into hot pressing at 180 DEG C in flat-bed press, in hot pressing
During 300s, pressure is reduced to zero and keeps zero pressure 30s that slab is exitted, hot pressing of boosting the most again, hot pressing 12 points altogether
Clock；Proceeding to slab afterwards cold pressing to room temperature press, pressure is 1MPa, takes when board briquette is down to 50～60 DEG C
Go out；
Step 7, post-production: display after carrying out cutting edge and surface process.
Embodiment 5:
The present embodiment is prepared for poplar/straw-high density polyethylene (HDPE) directional composite, and processing step is:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 60～100mm, wide 15～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing
Growth 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification are processed with one or more modes in screening
Standby；
Step 2, pretreatment of raw material: by the moisture content high temperature drying of wood material to 8%；Then spraying method is used will to account for orientation
Wood-plastic composite particleboard quality 1～2% the trade mark be PM200, NCO group accounts for polymerization benzhydryl propane two isocyanide of 30-32%
Acid esters liquid coupling agent is applied on pretreated wood material；
Step 3, prepare plastic tab: high-density polyethylene plastics processing film is become a length of 80mm, and width is 20mm, thick
Degree is the thermoplastic plastic foil of 0.1mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 16% is divided into two
Part, it is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool is mixed with plastic tab
The mixture of compound and straw wood shavings and plastic tab；
Step 5, multi-layer oriented mat formation: the upper and lower surface at slab places processing release paper, and uses finger gauge to control target thickness,
Described wood wool is carried out layering orientation paving with the mixture of plastic tab and the mixture of described straw wood shavings and plastic tab
Dress, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab and puts into hot pressing at 180 DEG C in flat-bed press, in hot pressing
During 300s, pressure is reduced to zero and keeps zero pressure 30s that slab is exitted, hot pressing of boosting the most again, hot pressing 12 points altogether
Clock；Proceeding to slab afterwards cold pressing to room temperature press, pressure is 1MPa, takes when board briquette is down to 50～60 DEG C
Go out；
Step 7, post-production: display after carrying out cutting edge and surface process.
The physical and mechanical property index of sheet material prepared by above-described embodiment 1-5 is shown in Figure of description 4.
Claims (10)
1. an orientation wood-plastic composite particleboard, it is characterised in that: its component and percetage by weight be: wood material account for 69～
94%；Thermoplastic accounts for 4～30%；Coupling agent accounts for 1～2%；Described orientation wood-plastic composite particleboard has multiple structure, and institute
State each layer in multiple structure be orienting spreading prepare, described multiple structure has bottom, intermediate layer and top layer, described bottom
Using the mixture of wooden shavings and plastic tab to mat formation with described top layer to form, described intermediate layer uses straw wood shavings and plastics
The mixture of thin slice is mated formation and is formed.
A kind of orientation wood-plastic composite particleboard, it is characterised in that: the intermediate layer of described multilamellar leads to
Crossing orienting device to be oriented to mat formation and form, described intermediate layer has some lamellas, and total number of plies of described lamella is odd number, and edge
Sheet material central plane is symmetrical, and in described some lamellas, the direction of mating formation between adjacent two layers is overall in vertical direction.
A kind of orientation wood-plastic composite particleboard the most according to claim 1 or claim 2, it is characterised in that: described bottom and described table
Layer all is oriented to mat formation by orienting device and forms, and the direction of mating formation of described top layer and described bottom is totally in parallel relation.
4. according to orientation wood-plastic composite particleboard a kind of according to any one of claim 1-3, it is characterised in that: described wood planing
Flower for Aspen wood shavings, its a length of 60～100mm, width is 15～20mm, and thickness is 0.2～0.5mm；Described plastic tab is long
Degree is 60～100mm, and width is 15～20mm, and thickness is 0.05～0.2mm.
5. according to the manufacture method orienting wood-plastic composite particleboard a kind of according to any one of claim 1-3, including following step
Rapid:
Step one, wood material are got the raw materials ready: by timber by flaking, roll, one or more modes in sawing and screening are processed
Grow up 20～200mm, wide 2～20mm, the wood wool of thick 0.1～2mm specification standby；By straw by chipping, roll, sawing and
One or more modes in screening process grow up 20～100mm, wide 2～15mm, the straw wood shavings of thick 0.1～2mm specification standby
With；
Step 2, pretreatment of raw material: described wood material is carried out high temperature drying or hot-water extraction processes or combination, and
The moisture content of wood material is dried to less than 5%, reduces the surface energy of wood material simultaneously；Then spraying method is used to account for
Orientation wood-plastic composite particleboard quality 1～2% liquid coupling agent be applied on pretreated wood material；
Step 3, prepare plastic tab: thermoplastics processing becomes a length of 60～100mm, and width is 15～20mm, thickness
It is the thermoplastic plastic foil of 0.05～0.2mm；
Step 4, cylinder mix: the described thermoplastic plastic foil accounting for orientation wood-plastic composite particleboard quality 4～30% be divided into
Two parts, it is placed in cylinder mixs homogeneously with described wood wool and described straw wood shavings respectively, it is thus achieved that wood wool and plastic tab
The mixture of mixture and straw wood shavings and plastic tab；
Step 5, multi-layer oriented mat formation: by thin with plastics with the mixture of plastic tab and described straw wood shavings for described wood wool
The mixture of sheet carries out being layered orienting spreading, it is thus achieved that multiple-layer stacked orientation slab；
Step 6, hot pressing and cold pressing: multiple-layer stacked is oriented slab put in flat-bed press at 120～220 DEG C hot pressing 3～
20 minutes, it is passed through 5～25 DEG C of cold water to hot press heating plate afterwards or proceeds to slab cold pressing to room temperature press, treating plate
Base temperature is down to when 50～60 DEG C take out；
Step 7, post-production: display after carrying out cutting edge and surface process.
A kind of manufacture method orienting wood-plastic composite particleboard, it is characterised in that described in step 5
Orienting spreading includes step in detail below:
A, orienting spreading bottom: wood wool and the mixture of plastic tab are oriented acquisition of mating formation have certain thickness fixed
To bottom of mating formation；
B, orienting spreading last layer: on described orienting spreading bottom, change orienting spreading direction, with described orienting spreading bottom
Straw wood shavings described in angle perpendicular relation superposition orienting spreading and the mixture of plastic tab；
C, complete slab orienting spreading: repeat b step several times, until completing to have mating formation of certain thickness and the number of plies, then with
The mixture of wood wool and plastic tab carries out top layer and mats formation, and is finally completed plate blank paving.
7. according to the manufacture method orienting wood-plastic composite particleboard a kind of described in claim 5 or 6, it is characterised in that step four-way
Cross inclined shaft cylinder to mix, to mix homogeneously with per minute 10 speed going to 60 turns；In step 5, raw mixture is carried out
Orienting spreading refers to mutually overlap and superposition raw mixture, with raw mixture length direction with axially become 0～30 degree of folder
Mat formation in angle.
8. according to the manufacture method orienting wood-plastic composite particleboard a kind of according to any one of claim 5 to 7, it is characterised in that
Described in step 5 multi-layer oriented mat formation in each layer when mating formation the orientation direction of raw mixture to be parallel or perpendicular to slab axial,
Overlaying structure is symmetrical at slab central plane simultaneously.
A kind of manufacture method orienting wood-plastic composite particleboard, it is characterised in that described in step 3
Thermoplastic be high density polyethylene (HDPE), Low Density Polyethylene, high density poly propylene, polrvinyl chloride, polystyrene, propylene
One or more in nitrile-butadiene styrene resin, nylon, polylactic acid, polyhydroxyalkanoate；Described thermoplastic
It is primary material or the reworked material of recovered acquisition.
A kind of manufacture method orienting wood-plastic composite particleboard, it is characterised in that described in step 5
The breadth a length of 400～2440mm of multiple-layer stacked orientation slab, width is 400～1220mm；Described in step 7 by multilamellar
When superposition orientation slab is put in flat-bed press, limit the thickness of flat-bed press pressing plate as 6～55mm.
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| CN107662268A (en) * | 2016-12-31 | 2018-02-06 | 北京林业大学 | A kind of flaxen fiber enhancing orientation wood-plastic composite particleboard and its manufacture method |
| CN107662253A (en) * | 2016-12-31 | 2018-02-06 | 北京林业大学 | A kind of fiber reinforcement orients wood-plastic composite particleboard |
| CN114083638A (en) * | 2021-09-30 | 2022-02-25 | 千年舟新材科技集团股份有限公司 | Preparation method of bamboo oriented strand board for load-bearing structure |
| CN115351867A (en) * | 2017-07-03 | 2022-11-18 | 克诺斯邦卢森堡股份公司 | Oriented strand board, method for manufacturing oriented strand board and equipment for manufacturing oriented strand board |
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| CN107662268A (en) * | 2016-12-31 | 2018-02-06 | 北京林业大学 | A kind of flaxen fiber enhancing orientation wood-plastic composite particleboard and its manufacture method |
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| CN115351867A (en) * | 2017-07-03 | 2022-11-18 | 克诺斯邦卢森堡股份公司 | Oriented strand board, method for manufacturing oriented strand board and equipment for manufacturing oriented strand board |
| CN114083638A (en) * | 2021-09-30 | 2022-02-25 | 千年舟新材科技集团股份有限公司 | Preparation method of bamboo oriented strand board for load-bearing structure |
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