CN105773742B - The manufacture method of low resin added environment-friendly concrete template - Google Patents
The manufacture method of low resin added environment-friendly concrete template Download PDFInfo
- Publication number
- CN105773742B CN105773742B CN201610205810.XA CN201610205810A CN105773742B CN 105773742 B CN105773742 B CN 105773742B CN 201610205810 A CN201610205810 A CN 201610205810A CN 105773742 B CN105773742 B CN 105773742B
- Authority
- CN
- China
- Prior art keywords
- low
- wooden veneer
- wooden
- veneer
- glue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- 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
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
Abstract
The present invention is the manufacture method of low resin added environment-friendly concrete template, belongs to wood-based plate manufacturing technology field.Its technique is that juggle is peeled into 1.5~2.5mm Wooden veneers, drying adjusts moisture content to 2~10%, atmospheric low-temperature plasma modification is carried out to single plate double side, acted synergistically by ultrasound and cyclone, adhesive atomization is sprayed on tight side for particle of the diameter less than 40 μm, single side adhesive applied amount is controlled in 10~80g/m2, low resin added environment-friendly concrete template is made by the orthogonal assembly in adjacent layer veneer fiber pattern direction, then through precompressed, hot pressing and overlay film.Properties of product comply with the national standard requirements, no free formaldehyde release, and the more traditional gluing mode dosage of adhesive dosage declines 30~70%, and product quality is obviously improved, and production cost is decreased obviously.In addition this method energy-saving production technology environmental protection, production equipment is easy to operate, efficient, controllability is good, and can continuous and automatic operation.
Description
Technical field
The present invention relates to a kind of manufacture method of low resin added environment-friendly concrete template.Belong to wood-based plate manufacturing technology neck
Domain.
Background technology
Concrete blinding is young concrete is shaped and is conserved, and makes up to some strength to bear the interim of dead weight
Property the mould plate that can simultaneously remove of structure, be concrete structure engineering construction important tool.In Cast-in-situ Concrete Structural Engineering,
Form work engineering typically constitutes from the 20%~30% of concrete structure engineering cost, accounts for the 30%-40% of the engineering amount of labour used, accounts for the duration
50% or so.Mould plate technique directly affects the quality, cost and benefit of engineering construction, and therefore, it is to promote China's Building technology
A progressive important content, building template is in occupation of considerable status in architectural engineering.
Concrete blinding density using timber as raw material is 530~750kg/m3, relatively gently, be suitable for skyscraper and
Bridge construction；Template breadth is big, and maximum breadth is up to 3000 × 1500mm, it is possible to reduce the seam number of template, reduces spillage and show
As ensure that the construction quality of concrete, and improve formwork work efficiency；With heat insulating ability, it is possible to reduce outside air temperature is to mixed
The influence of soil is coagulated, is conducive to winter construction；Have good workability, can need to be processed into variously-shaped template according to construction；Table
Face gloss, it is smooth, it is hard, it is smooth, there is corrosion resistance to chemicals such as common soda acids, water resistance is fine, is resistant to frost and height
Temperature, is easy to demould, and does the object surface smooth and beautiful appearance of Shimizu concrete template cast with it, saves secondary plastering technique, can be straight
Faced deorative is connect, reduces the duration 30%, is one of most widely used template form of architectural engineering.
However, since timber is porous material, it is easy to hygroscopicity, and causes the change of size and dimension, especially
For wooden concrete blinding using multi-plywood as base material, the intensity and water resistance of glue-line directly affects the repetition turnover time of template
Number and service life.Mainly ensure the matter of template by using water proof type adhesive and raising adhesive dosage in actual production
Amount, usual two-sided adhesive dosage is 220~340g/m2, still, can so significantly improve the production cost of product.It is wooden mixed
In solidifying clay model board manufacturing process, adhesive cost accounts for more than the 1/3 of total production cost.It is increasingly high for industrial chemicals price
It is expensive, the problem of adhesive cost is higher and higher, be greatly reduced adhesive dosage be reduce concrete blinding be produced into one's own profession it
Effective method.
The content of the invention
The purpose of the present invention is being modified processing to Wooden veneer surface using atmospheric low-temperature plasma, in wooden list
High reaction activity superficial layer of the plate surface structure with special nanoscale indentation, while cooperateed with using ultrasound with cyclone atomization
Effect, subparticle is atomized into by glue, is uniformly sprayed in Wooden veneer surface, is utilized the veneer surface after plasma modification
High wettability glue is quickly flowed exhibition automatically, veneer surface formed uniformly continuous thin adhesive layer, realize it is micro sizing (gluing
The more traditional gluing mode dosage of agent dosage declines 30~70%) efficient glued purpose under mode between timber and adhesive, system
The standby requirement for obtaining physical and mechanical property and meeting concrete blinding national standard, and discharged without free formaldehyde.
The technical solution of the present invention：The manufacture method of low resin added environment-friendly concrete template is to complete according to the following steps
's：
First, prepared by Wooden veneer：
First by log cutting into lengths, then softened processing to be to improve timber plasticity, and after through peelling off bark, it is then determined that wooden
The section rotary-cut centre of gyration, through being peeled into Wooden veneer, last drying processing is stand-by；
The thickness of Wooden veneer described in step 1 is 1.5~2.5mm, due to the too low dry energy consumption of Wooden veneer moisture content
Greatly, moisture content is excessive carries out easily producing punch-through during surface plasma processing, therefore, after drying processing, wooden list
The moisture control of plate is 2~10%；
2nd, Wooden veneer surface preparation：
Carry out atmospheric low-temperature plasma modification two-sided to the Wooden veneer after drying, passes through the electricity in plasma
Corrasion and free radical of the high energy active particle such as son, ion, atom, molecule and photon to Wooden veneer surface are drawn
Chemical action is sent out, changes Wooden veneer surface microstructure, and a large amount of polar groups are introduced on its surface, is formd with special
Nanoscale indentation high reaction activity superficial layer, adhesive is greatly improved in Wooden veneer wettability of the surface, is
Realize that efficient gluing of the Wooden veneer in the case of low resin added lays the foundation；
Wooden veneer surface atmospheric low-temperature plasma modification processing method described in step 2 is：Wooden list after drying
Plate is placed on the low-temperature plasma modified and micro sizing integrated apparatus feeding web of wooden thin plate, according to processed wooden
The thickness of veneer adjusts four pairs and encourages double-dielectric barrier discharge electrode spacing with diamond spar ceramic coated difference, its value range is 5
~10mm, opens power supply, adjusts processing power to 3~6KW, the air between electrode is produced low temperature by dielectric barrier discharge
Plasma, makes Wooden veneer vacantly pass sequentially through the gap among upper and lower four pairs of sparking electrodes with the speed of 2~40m/min,
Low-temperature plasma modified processing is carried out at the same time to two surfaces of Wooden veneer under normal pressure state, and due to Wooden veneer
Four pairs of electrodes are passed sequentially through, processing four times is sequentially overlapped equivalent to same processed position, enhances the surface of Wooden veneer
Modified effect；
3rd, the micro sizing in Wooden veneer surface：
Acted synergistically by ultrasound and cyclone, glue atomization is sprayed in Wooden veneer for particle of the diameter less than 40 μm
Tight face, i.e., there is no the veneer surface for surmounting crack, Wooden veneer single side adhesive applied amount to control in 20~90g/m2, depending on not
Depending on adhesive species, the more conventional dosage of adhesive dosage reduces 30~70%；
The micro glue applying method in Wooden veneer surface described in step 3 is：Adhesive is pumped by glue and is inputted with stabilized speed
Ultrasonic cyclone is atomized glue system, by the Wooden veneer after atmospheric low-temperature plasma is handled with 2~40m/min and normal pressure
By glue system, one layer of thin glue-line is uniformly at the uniform velocity sprayed on its surface for the speed of Low Temperature Plasma Treating systems compliant,
It is 42 ± 3KHz to control ultrasonic cyclone atomization glue system working frequency, and power is 1~5W, flow 1-50mL/min, nozzle and
The distance on Wooden veneer surface is 200-400mm, air pressure 0.01-0.1MPa；
Ultrasound and the cooperative effect of cyclone can make adhesive atomization be fine particle, and this tiny adhesive particle can lead to
Cross Wooden veneer surface and wood cell wall is penetrated into by the nanoscale indentation of plasma etching, closely connect with cell wall substance
Touch, form nanometer mechanics and be fitted together to or be connected chemically with component of polymer generation in cell membrane, form the polymeric web to interpenetrate
Network, so that the efficient gluing in the case of can realizing low resin added between timber and adhesive；
Adhesive used in the micro sizing in Wooden veneer surface described in step 3 is in phenolic resin glue and isocyanate glue
One kind, to ensure that adhesive is smoothly atomized and should be less than 40s for fine particle, its viscosity, be preferably controlled in 20~30s；
Step 2 and step 3 are completed by the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate,
The device includes device framework, wooden thin plate transmission assembly, Power Component, Low Temperature Plasma Treating component, ultrasonic cyclone spray
Glue component and controller assemblies, Wooden veneer (including are set in turn on device framework by transmission assembly along feedstock direction
Wooden thin plate charging conveyor, wooden thin plate charging sensing device, wooden thin plate charging pressure roller, wooden thin plate discharging pressure roller, wood
Matter thin plate discharging sensing device and wooden thin plate discharging transmission roller group) deliver into Low Temperature Plasma Treating；Low-temperature plasma
Body processing component (encourages double-dielectric barrier discharge electrode, low-temperature plasma generator, low temperature plasma electricity comprising four pairs of difference
Source and cooling row ozone equipment) in low-temperature plasma electrical source and low-temperature plasma generator pass through high insulated wire with electrode
Cable is reliably connected, and the electric discharge acquisition uniform low temperature plasma of wide cut between electrode gap, Wooden veneer is vacantly by between electrode
Gap, two surfaces are carried out at the same time low-temperature plasma modified processing；Wooden veneer after Low Temperature Plasma Treating is discharging
Enter ultrasonic cyclone size application area under the drive of pressure roller, ultrasonic cyclone glue spraying component (including ultrasonic cyclone synergistic effect nozzle branch
Support stent, ultrasonic cyclone synergistic effect nozzle, glue control valve, pipeline-cleaning valve, adhesive collection device and glue spraying taste removal dress
Put) in ultrasonic cyclone synergistic effect nozzle be fixed on by stainless steel slide block Parallel Symmetric on nozzle support stent, stainless steel
Sliding block can move up and down on nozzle support stent, to adjust the distance of nozzle and wooden thin plate surface and six nozzles
Mutual spacing, so that the glue for regulating and controlling every group of nozzle sprays area, to realize the mesh of regulation and control Wooden veneer top sizing amount
, the adjustable range of nozzle and wooden thin plate surface distance is 200-400mm, and nozzle can be moved left and right arbitrarily, and nozzle passes through logical
Tracheae is connected with admission pressure device, and it is 0.01-0.1MPa to adjust the air pressure of admission pressure device, is atomized adhesive, same to time control
42 ± 3KHz of nozzle operation frequency processed, power are 1~5W, and producing ultrasonic wave makes glue particle further refine diameter less than 40 μm
Particle, adjusting range of flow is 1-50mL/min, recycles the Gao Run on the Wooden veneer surface after Low Temperature Plasma Treating
The moist fine glue for making to spray in its surface drips rapid stream exhibition, and one layer can be formed in the case of low resin added on veneer surface by realizing
Uniform thin adhesive layer, so that the product after gluing obtains good bonding strength；Power Component can adjust transmission speed, ensure
Veneer is in Low Temperature Plasma Treating region and the uniformity of the movement velocity of ultrasonic cyclone size application area；
4th, Wooden veneer assembly is glued：
Wooden veneer after sizing is subjected to group according to the mutually perpendicular principle in adjacent layer veneer lumber fiber pattern direction
Base, and after through precompressed, hot pressing low resin added environment-friendly concrete template base material is made；
Wooden veneer slab pre-pressing process condition described in step 4 is：Pressure is：0.8~1.2MPa, pressing time：30
~60min, hot pressing technique are：Hot pressing temperature is 130~160 DEG C, and hot pressing pressure is 1.2~1.5MPa, and hot pressing time is
0.7~1min/mm；
5th, substrate surface overlay film：
By base material through cutting edge, repairing and fixed thick sanding, with resin impregnating paper clad can, then the obtained low sizing after cutting edge
Environment-friendly concrete template is measured, the physical and mechanical property of the plate meets the requirement of concrete blinding national standard, and without free first
Aldehyde discharges；
Substrate surface coating technique condition described in step 5 is：Hot pressing temperature：125~180 DEG C, hot pressing pressure：1.0~
2.5MPa, hot pressing time：6~8min.
Advantages of the present invention：(1) superior product quality：A kind of low resin added environment-friendly concrete template provided using this patent
The concrete mould panel products physical and mechanical property for preparing of manufacture method meet the requirement of concrete blinding national standard, and
No free formaldehyde release.(2) production cost is low：Wooden veneer is after atmospheric low-temperature plasma modification using ultrasound
Cyclone collaboration atomization glue spraying, can make product in the case where the more conventional adhesive dosage of adhesive dosage declines 30~70%, property
Can still can performance reach the requirement of relevant national standard, so as to which production cost is greatly lowered.In addition, using the art of this patent
It can realize and expensive isocyanate glue is used for concrete blinding industrialized production, prepare the coagulation without formaldehyde and high intensity
Clay model panel products, and production cost is not higher than common phenolic resin glue in production at present.(3) energy-saving production technology environmental protection：This item
A kind of manufacture method of the low resin added environment-friendly concrete template provided is invented, dry process technique, saves the energy, nuisanceless, symbol
The requirement of industrialized production energy-saving and emission-reduction before being fated.(4) production equipment is easy to operate：Can be according to the requirement of product by adjusting place
Science and engineering skill control process effect, and processing time is short, efficient, controllability is good, and can continuous and automatic operation.
Embodiment
Embodiment 1
Path quick growth poplar wood is truncated into certain length juggle with circular sawing machine, juggle length is according to concrete mould panel products width
Face requires to determine, is usually+100~150mm of concrete blinding product length.Juggle is put in boiling pond and is carried out at softening
Reason, increases timber plasticity, to improve rotary cut venner quality., need to be with special peeling machine by wood in order to ensure concrete blinding quality
Section bark removes.Then, the centre of gyration of juggle is determined using mechanical centering machine, then juggle is positioned over peeler with overwood machine
On, the veneer that thickness is 1.5mm is made in rotary-cut.
Board using poplar board is put in breather drier and is dried under conditions of having certain pressure (being less than 0.1MPa),
Drying temperature is unsuitable excessive, controls below 80 DEG C, prevents the buckling deformation of veneer in drying process, to ensure the smooth of veneer
Degree.It is after drying that the moisture control of board using poplar board is stand-by 6%.
Veneer after drying is placed in the charging of the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate
On conveyer belt, Low Temperature Plasma Treating region is entered under the drive of charging pressure roller, adjusting four sparking electrodes up and down
Spacing is 7mm.Low-temperature plasma electrical source is opened, processing power is adjusted to 4.5KW, when interelectrode voltage reaches atmospherical discharges
During voltage, dielectric barrier discharge is formed between electrode, produces low temperature plasma, board using poplar board is hanged successively with the speed of 2m/min
Sky is continued through from four pairs of electrode gaps, and low-temperature plasma modified processing is carried out at the same time to two surfaces above and below veneer.It is wooden
Veneer passes sequentially through four pairs of electrodes, is sequentially overlapped processing four times equivalent to same processed position, enhances Wooden veneer
Surface low-temperature plasma modification effect.
It is low-temperature plasma modified and micro apply that phenolic resin glue that viscosity is 20s with stabilized speed is inputted into wooden thin plate
The ultrasonic cyclone atomization glue system of glue integrated apparatus.Start admission pressure device adjustment air pressure 0.1MPa, make adhesive mist
Change, while control system working frequency is 42 ± 3KHz, power 3W, it is small that generation ultrasonic wave makes glue be further refined as diameter
In 40 μm of particle, it is 20mL/min to adjust glue control valve adjustment mist flow, and nozzle and the spacing on Wooden veneer surface are
200mm, control board using poplar board are at the uniform velocity by being glued with speed consistent with atmospheric low-temperature plasma processing system 2m/min
System, in the tight face of board using poplar board, (i.e. there is no the veneer surface for surmounting crack) uniformly sprays one layer of thin glue-line, Wooden veneer
The resin added of single side is 90g/m2.Wooden veneer after sizing is orthogonal according to adjacent layer veneer lumber fiber pattern direction
Principle carry out assembly, under conditions of pressure is 1.0MPa after precompressed 30min, then be 140 DEG C in hot pressing temperature, hot pressing pressure
Power is 1.2MPa, and hot pressing time is pressed into concrete blinding base material under conditions of being 0.7min/mm.Finally, will be by base material through cutting out
It is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature after side, repairing and fixed thick sanding, under the conditions of hot pressing time is 6min,
Resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.Concrete blinding
Glue performance performance and burst size of methanal see the table below.
Embodiment 2
It is 1.5mm that path quick growth poplar wood is made thickness by the identical step of embodiment 1, and moisture content is 6% veneer.
Veneer after drying is placed in the charging of the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate
On conveyer belt, Low Temperature Plasma Treating region is entered under the drive of charging pressure roller, adjusting four sparking electrodes up and down
Spacing is 7mm.Low-temperature plasma electrical source is opened, processing power is adjusted to 4.5KW, when interelectrode voltage reaches atmospherical discharges
During voltage, form dielectric barrier discharge between electrode, produce low temperature plasma, board using poplar board with the speed of 10m/min successively
Vacantly continued through from four pairs of electrode gaps, low-temperature plasma modified processing is carried out at the same time to two surfaces above and below veneer.
It is low-temperature plasma modified and micro apply that phenolic resin glue that viscosity is 20s with stabilized speed is inputted into wooden thin plate
The ultrasonic cyclone atomization glue system of glue integrated apparatus.Start admission pressure device adjustment air pressure 0.1MPa, make adhesive mist
Change, while control system working frequency is 42 ± 3KHz, power 3W, it is small that generation ultrasonic wave makes glue be further refined as diameter
In 40 μm of particle, it is 20mL/min to adjust glue control valve adjustment mist flow, and nozzle and the spacing on Wooden veneer surface are
200mm, control board using poplar board are at the uniform velocity by being glued with speed consistent with atmospheric low-temperature plasma processing system 10m/min
System, in the tight face of board using poplar board, (i.e. there is no the veneer surface for surmounting crack) uniformly sprays one layer of thin glue-line, Wooden veneer
The resin added of single side is 70g/m2.Wooden veneer after sizing is orthogonal according to adjacent layer veneer lumber fiber pattern direction
Principle carry out assembly, under conditions of pressure is 1.0MPa after precompressed 30min, then be 140 DEG C in hot pressing temperature, hot pressing pressure
Power is 1.2MPa, and hot pressing time is pressed into concrete blinding base material under conditions of being 0.7min/mm.Finally, will be by base material through cutting out
It is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature after side, repairing and fixed thick sanding, under the conditions of hot pressing time is 6min,
Resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.Concrete blinding
Glue performance performance and burst size of methanal see the table below.
Comparative example 1
It is 1.5mm that path quick growth poplar wood is made thickness by 1 same steps of embodiment, and moisture content is 6% veneer.It will dry
Phenolic resin glue is applied to two surface of core plate by the veneer after dry by current concrete mould board production technology using roller gluing mode,
The resin added of Wooden veneer single side is 130g/m2.By the Wooden veneer after sizing according to adjacent layer veneer lumber fiber pattern side
Assembly is carried out to mutually perpendicular principle, after precompressed 30min under conditions of pressure is 1.0MPa, then is being in hot pressing temperature
140 DEG C, hot pressing pressure 1.2MPa, hot pressing time is pressed into concrete blinding base material under conditions of being 0.7min/mm.Finally,
It will be 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature, hot pressing time is by base material after cutting edge, repairing and fixed thick sanding
Under the conditions of 6min, resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.
The glue performance performance and burst size of methanal of concrete blinding see the table below.
Embodiment 3
It is 2.5mm that masson pine log is made thickness by the identical step of embodiment 1, and moisture content is 6% veneer.
Veneer after drying is placed in the charging of the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate
On conveyer belt, Low Temperature Plasma Treating region is entered under the drive of charging pressure roller, adjusting four sparking electrodes up and down
Spacing is 10mm.Low-temperature plasma electrical source is opened, processing power is adjusted to 4.5KW, is put when interelectrode voltage reaches air
During piezoelectric voltage, form dielectric barrier discharge between electrode, produce low temperature plasma, plate of Pinus massoniana with the speed of 2m/min according to
It is secondary vacantly to be continued through from four pairs of electrode gaps, low-temperature plasma modified processing is carried out at the same time to two surfaces above and below veneer.
It is low-temperature plasma modified and micro apply that phenolic resin glue that viscosity is 20s with stabilized speed is inputted into wooden thin plate
The ultrasonic cyclone atomization glue system of glue integrated apparatus.Start admission pressure device adjustment air pressure 0.1MPa, make adhesive mist
Change, while control system working frequency is 42 ± 3KHz, power 3W, it is small that generation ultrasonic wave makes glue be further refined as diameter
In 40 μm of particle, it is 20mL/min to adjust glue control valve adjustment mist flow, and nozzle and the spacing on Wooden veneer surface are
200mm, control plate of Pinus massoniana at the uniform velocity pass through sizing with speed consistent with atmospheric low-temperature plasma processing system 2m/min
System, in the tight face of plate of Pinus massoniana, (i.e. there is no the veneer surface for surmounting crack) uniformly sprays one layer of thin glue-line, wooden
The resin added of veneer single side is 90g/m2.Wooden veneer after sizing is mutual according to adjacent layer veneer lumber fiber pattern direction
Vertical principle carries out assembly, after precompressed 30min under conditions of pressure is 1.0MPa, then is being 140 DEG C in hot pressing temperature, heat
Pressure pressure is 1.8MPa, and hot pressing time is pressed into concrete blinding base material under conditions of being 1min/mm.Finally, base material will be passed through
It it is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature, hot pressing time is 6min conditions after cutting edge, repairing and fixed thick sanding
Under, resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.Concrete mould
The glue performance performance and burst size of methanal of plate see the table below.
Embodiment 4
It is 2.5mm that masson pine log is made thickness by the identical step of embodiment 1, and moisture content is 6% veneer.
Veneer after drying is placed in the charging of the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate
On conveyer belt, Low Temperature Plasma Treating region is entered under the drive of charging pressure roller, adjusting four sparking electrodes up and down
Spacing is 10mm.Low-temperature plasma electrical source is opened, processing power is adjusted to 4.5KW, is put when interelectrode voltage reaches air
During piezoelectric voltage, dielectric barrier discharge is formed between electrode, produces low temperature plasma, plate of Pinus massoniana is with the speed of 10m/min
Vacantly continued through successively from four pairs of electrode gaps, low-temperature plasma modified place is carried out at the same time to two surfaces above and below veneer
Reason.
It is low-temperature plasma modified and micro apply that phenolic resin glue that viscosity is 20s with stabilized speed is inputted into wooden thin plate
The ultrasonic cyclone atomization glue system of glue integrated apparatus.Start admission pressure device adjustment air pressure 0.1MPa, make adhesive mist
Change, while control system working frequency is 42 ± 3KHz, power 3W, it is small that generation ultrasonic wave makes glue be further refined as diameter
In 40 μm of particle, it is 20mL/min to adjust glue control valve adjustment mist flow, and nozzle and the spacing on Wooden veneer surface are
200mm, control plate of Pinus massoniana at the uniform velocity pass through sizing with speed consistent with atmospheric low-temperature plasma processing system 10m/min
System, in the tight face of plate of Pinus massoniana, (i.e. there is no the veneer surface for surmounting crack) uniformly sprays one layer of thin glue-line, wooden
The resin added of veneer single side is 70g/m2.Wooden veneer after sizing is mutual according to adjacent layer veneer lumber fiber pattern direction
Vertical principle carries out assembly, after precompressed 30min under conditions of pressure is 1.0MPa, then is being 140 DEG C in hot pressing temperature, heat
Pressure pressure is 1.8MPa, and hot pressing time is pressed into concrete blinding base material under conditions of being 1min/mm.Finally, base material will be passed through
It it is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature, hot pressing time is 6min conditions after cutting edge, repairing and fixed thick sanding
Under, resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.Concrete mould
The glue performance performance and burst size of methanal of plate see the table below.
Comparative example 2
It is 2.5mm that masson pine log is made thickness by the identical step of embodiment 1, and moisture content is 6% veneer.It will dry
Phenolic resin glue is applied to two table of core plate by the veneer after dry by the production technology of current concrete blinding using roller gluing mode
Face, the resin added of Wooden veneer single side is 150g/m2.By the Wooden veneer after sizing according to adjacent layer veneer lumber fiber pattern
The mutually perpendicular principle in direction carries out assembly, after precompressed 30min under conditions of pressure is 1.0MPa, then is being in hot pressing temperature
140 DEG C, hot pressing pressure 1.8MPa, hot pressing time is pressed into concrete blinding base material under conditions of being 1min/mm.Finally, will
It it is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature, hot pressing time is by base material after cutting edge, repairing and fixed thick sanding
Under the conditions of 6min, resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.
The glue performance performance and burst size of methanal of concrete blinding see the table below.
Because Masson pine timber contains abundant resin canal, it is peeled into resin after veneer and can separates out and be covered in veneer surface,
The presence of this oleoresin has seriously affected the glue performance at timber interface.If not carrying out necessary processing to veneer surface,
Only it can just make properties of product up to standard reluctantly by improving adhesive dosage.Using the art of this patent, to plate of Pinus massoniana surface
Low Temperature Plasma Treating is carried out, the structure of its surface oleoresin can be destroyed, substantially increase adhesive on veneer surface
Wetability, so as to ensure that (single side resin added is 70g/m in relatively low resin added2) in the case of, plate of Pinus massoniana still can be real
The gluing of existing high intensity.
Embodiment 5
It is 1.5mm that path quick growth poplar wood is made thickness by 1 same steps of embodiment, and moisture content is 6% veneer.
Veneer after drying is placed in the charging of the low-temperature plasma modified and micro sizing integrated apparatus of wooden thin plate
On conveyer belt, Low Temperature Plasma Treating region is entered under the drive of charging pressure roller, adjusting four sparking electrodes up and down
Spacing is 7mm.Low-temperature plasma electrical source is opened, processing power is adjusted to 4.5KW, when interelectrode voltage reaches atmospherical discharges
During voltage, form dielectric barrier discharge between electrode, produce low temperature plasma, board using poplar board with the speed of 30m/min successively
Vacantly continued through from four pairs of electrode gaps, low-temperature plasma modified processing is carried out at the same time to two surfaces above and below veneer.
It is low-temperature plasma modified and micro apply that isocyanate adhesive that viscosity is 30s with stabilized speed is inputted into wooden thin plate
The ultrasonic cyclone atomization glue system of glue integrated apparatus.Start admission pressure device adjustment air pressure 0.1MPa, make adhesive mist
Change, while control system working frequency is 42 ± 3KHz, power 3W, it is small that generation ultrasonic wave makes glue be further refined as diameter
In 40 μm of particle, it is 20mL/min to adjust glue control valve adjustment mist flow, and nozzle and the spacing on Wooden veneer surface are
200mm, control board using poplar board are at the uniform velocity by being glued with speed consistent with atmospheric low-temperature plasma processing system 30m/min
System, in the tight face of board using poplar board, (i.e. there is no the veneer surface for surmounting crack) uniformly sprays one layer of thin glue-line, Wooden veneer
The resin added of single side is 20g/m2.Wooden veneer after sizing is orthogonal according to adjacent layer veneer lumber fiber pattern direction
Principle carry out assembly, under conditions of pressure is 1.2MPa after precompressed 30min, then be 160 DEG C in hot pressing temperature, hot pressing pressure
Power is 1.8MPa, and hot pressing time is pressed into concrete blinding base material under conditions of being 0.8min/mm.Finally, will be by base material through cutting out
It is 140 DEG C, hot pressing pressure 1.5MPa in hot pressing temperature after side, repairing and fixed thick sanding, under the conditions of hot pressing time is 6min,
Resin impregnating paper is posted in substrate surface, low resin added environment-friendly concrete template is made after cutting edge.Concrete blinding
Glue performance performance and burst size of methanal see the table below.
Concrete blinding physical and mechanical property measurement result see the table below：
Note：
1. glue kind：PF is phenolic resin glue, and MDI is isocyanate resin；
2. bonding strength is according to national standard《Plywood for concrete form》The requirement of GB/T 17656-2008, by I classes
The method measure of glued board, according to the regulation of standard GB/T/T 17656-2008, bonding strength should be greater than 0.7MPa；
3. burst size of methanal method as defined in standard GB/T/T17657-2013 measures.
Claims (8)
1. the manufacture method of low resin added environment-friendly concrete template, it is characterised in that：The low resin added environment-friendly concrete mould
Plate is prepared according to the following steps：
Step 1：It is prepared by Wooden veneer：First by log cutting into lengths, then softened processing to be to improve timber plasticity, and after through stripping
Debark, it is then determined that the juggle rotary-cut centre of gyration, through being peeled into Wooden veneer, last drying processing is stand-by；
Step 2：Wooden veneer surface preparation：By Wooden veneer after drying be placed in wooden thin plate it is low-temperature plasma modified and
On the feeding web of micro sizing integrated apparatus, two-sided carry out atmospheric low-temperature plasma modification, passes through plasma
The corrasion to Wooden veneer surface of electronics, ion, atom, molecule and photon high-energy active particle in body and from
Chemical action is triggered by base, changes Wooden veneer surface microstructure, and a large amount of polar groups are introduced on its surface, forms tool
There is the high reaction activity superficial layer of special nanoscale indentation, wetting of the adhesive on Wooden veneer surface is greatly improved
Property, to realize that efficient gluing of the Wooden veneer in the case of low resin added lays the foundation；
Step 3：The micro sizing in Wooden veneer surface：Adhesive is pumped by glue wooden thin plate low temperature etc. is inputted with stabilized speed
The ultrasonic cyclone atomization glue system of the modifies and micro sizing integrated apparatus of ion, is acted synergistically by ultrasound and cyclone,
Adhesive atomization is sprayed in the tight face of Wooden veneer for particle of the diameter less than 40 μm, i.e., there is no the veneer table for surmounting crack
Face, Wooden veneer single side adhesive applied amount are controlled in 20~90g/m2；
Step 4：Wooden veneer assembly is glued：By the Wooden veneer after sizing according to adjacent layer veneer lumber fiber pattern direction
Mutually perpendicular principle carries out assembly, and after through precompressed, hot pressing low resin added environment-friendly concrete template base material is made；
Step 5：Substrate surface overlay film：By base material through cutting edge, repairing and fixed thick sanding, with resin impregnating paper clad can, then pass through
Low resin added environment-friendly concrete template is made after cutting edge, the physical and mechanical property of the template meets concrete blinding national standard
Requirement, and without free formaldehyde discharge；Wherein：Step 2 and step 3 are low-temperature plasma modified and micro- by wooden thin plate
Amount sizing integrated apparatus is completed, which includes device framework, wooden thin plate transmission assembly, Power Component, low-temperature plasma
Body processing component, ultrasonic cyclone glue spraying component and controller assemblies；Wooden veneer by transmission assembly deliver into low temperature etc. from
Daughter is handled；Wooden veneer after Low Temperature Plasma Treating enters ultrasonic cyclone under the drive of transmission assembly and is glued area
Domain, the glue of the ultrasonic controllable every group of nozzle of cyclone glue spraying component sprays area, so as to regulate and control Wooden veneer top sizing amount；
While Wooden veneer surface construction has the high reaction activity superficial layer of special nanoscale indentation, ultrasound and cyclone are utilized
Cooperative effect is atomized, glue is atomized into subparticle, uniformly sprays and quickly flows exhibition automatically in Wooden veneer surface, glue,
Veneer surface forms the thin adhesive layer of uniformly continuous, realizes micro sizing.
2. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 1 institute
The thickness for the Wooden veneer stated is 1.5~2.5mm, and after drying processing, the moisture control of Wooden veneer is 2~10%.
3. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 2 institute
The Wooden veneer surface atmospheric low-temperature plasma modification processing method stated is：It is low that Wooden veneer after drying is placed in wooden thin plate
Isothermal plasma is modified with micro sizing integrated apparatus feeding web, and four are adjusted according to the thickness of processed Wooden veneer
To encouraging double-dielectric barrier discharge electrode spacing with diamond spar ceramic coated difference, its value range is 5~10mm, opens power supply,
Processing power is adjusted to 3~6KW, the air between electrode is produced low temperature plasma by dielectric barrier discharge, makes wooden
Veneer vacantly passes sequentially through the gap among upper and lower four pairs of sparking electrodes with the speed of 2~40m/min, to wood under normal pressure state
Two surfaces of matter veneer are carried out at the same time low-temperature plasma modified processing.
4. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 3 institute
The micro glue applying method in Wooden veneer surface stated is：Adhesive is pumped by glue ultrasonic cyclone atomization sizing is inputted with stabilized speed
System, the Wooden veneer after atmospheric low-temperature plasma is handled is handled with 2~40m/min and atmospheric low-temperature plasma
By glue system, one layer of thin glue-line is uniformly at the uniform velocity sprayed on its surface for the speed of systems compliant.
5. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 3 institute
Adhesive used in the micro sizing in Wooden veneer surface stated is one kind in phenolic resin glue and isocyanate glue, to ensure gluing
Agent is smoothly atomized should be less than 40s for fine particle, its viscosity.
6. the manufacture method of low resin added environment-friendly concrete template according to claim 4, it is characterised in that：Control ultrasound
Cyclone atomization glue system working frequency is 42 ± 3kHz, and power is 1~5W, flow 1-50mL/min, nozzle and Wooden veneer
The distance on surface is 200~400mm, air pressure 0.01-0.1MPa.
7. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 4 institute
The Wooden veneer slab pre-pressing process condition stated is：Pressure is：0.8~1.2MPa, pressing time：30~60min, heat pressing process
Condition is：Hot pressing temperature is 140~160 DEG C, and hot pressing pressure is 1.2~1.5MPa, and hot pressing time is 0.7~1min/mm.
8. the manufacture method of low resin added environment-friendly concrete template according to claim 1, it is characterised in that：Step 5 institute
The substrate surface coating technique condition stated is：Hot pressing temperature：125~180 DEG C, hot pressing pressure：1.0~2.5MPa, hot pressing time：
6~8min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205810.XA CN105773742B (en) | 2016-03-31 | 2016-03-31 | The manufacture method of low resin added environment-friendly concrete template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205810.XA CN105773742B (en) | 2016-03-31 | 2016-03-31 | The manufacture method of low resin added environment-friendly concrete template |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105773742A CN105773742A (en) | 2016-07-20 |
| CN105773742B true CN105773742B (en) | 2018-05-04 |
Family
ID=56394675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610205810.XA Active CN105773742B (en) | 2016-03-31 | 2016-03-31 | The manufacture method of low resin added environment-friendly concrete template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105773742B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774383A (en) * | 2019-11-05 | 2020-02-11 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Preparation method of film-coated plywood |
| CN115476411B (en) * | 2021-05-31 | 2023-09-19 | 万华化学集团股份有限公司 | Method for producing aldehyde-free plywood |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785614A (en) * | 2005-10-25 | 2006-06-14 | 南京林业大学 | Manufacturing method of high strength high wear resistant Yiyang cement mould board |
| CN101139864A (en) * | 2007-10-08 | 2008-03-12 | 吴立忠 | Wood multi-layer floor composed of cut-plate and veneer and method for making same |
| CN101396839A (en) * | 2007-09-30 | 2009-04-01 | 汤可新 | Preparation method of environmental protection type solid-wood composite floor |
| CN101585203A (en) * | 2009-06-25 | 2009-11-25 | 湖南康派木业有限公司 | Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia |
| CN101890739A (en) * | 2010-07-16 | 2010-11-24 | 成都市双虎实业有限公司 | Composite slab with symmetric structure and manufacturing method thereof |
| CN101941224A (en) * | 2010-08-30 | 2011-01-12 | 南京林业大学 | Method for improving bonding performance of woody single plate by utilizing normal pressure cold plasma |
| CN102259074A (en) * | 2011-01-19 | 2011-11-30 | 沈阳芯源微电子设备有限公司 | Spraying mechanism and spraying method |
| CN202113986U (en) * | 2011-05-04 | 2012-01-18 | 东北林业大学 | Ultrasonic nozzle device for applying glue on fiberboard |
| CN202292944U (en) * | 2011-10-28 | 2012-07-04 | 南京林业大学 | Normal-pressure low-temperature plasma continuous treatment device of thin wood board |
| CN103058126A (en) * | 2012-11-30 | 2013-04-24 | 北京遥测技术研究所 | Processing method for surface electrodes of three-dimensional quartz micro-mechanical structure |
| CN103965805A (en) * | 2013-01-31 | 2014-08-06 | 戴武兵 | Adhesive composition and application thereof |
-
2016
- 2016-03-31 CN CN201610205810.XA patent/CN105773742B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785614A (en) * | 2005-10-25 | 2006-06-14 | 南京林业大学 | Manufacturing method of high strength high wear resistant Yiyang cement mould board |
| CN101396839A (en) * | 2007-09-30 | 2009-04-01 | 汤可新 | Preparation method of environmental protection type solid-wood composite floor |
| CN101139864A (en) * | 2007-10-08 | 2008-03-12 | 吴立忠 | Wood multi-layer floor composed of cut-plate and veneer and method for making same |
| CN101585203A (en) * | 2009-06-25 | 2009-11-25 | 湖南康派木业有限公司 | Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia |
| CN101890739A (en) * | 2010-07-16 | 2010-11-24 | 成都市双虎实业有限公司 | Composite slab with symmetric structure and manufacturing method thereof |
| CN101941224A (en) * | 2010-08-30 | 2011-01-12 | 南京林业大学 | Method for improving bonding performance of woody single plate by utilizing normal pressure cold plasma |
| CN102259074A (en) * | 2011-01-19 | 2011-11-30 | 沈阳芯源微电子设备有限公司 | Spraying mechanism and spraying method |
| CN202113986U (en) * | 2011-05-04 | 2012-01-18 | 东北林业大学 | Ultrasonic nozzle device for applying glue on fiberboard |
| CN202292944U (en) * | 2011-10-28 | 2012-07-04 | 南京林业大学 | Normal-pressure low-temperature plasma continuous treatment device of thin wood board |
| CN103058126A (en) * | 2012-11-30 | 2013-04-24 | 北京遥测技术研究所 | Processing method for surface electrodes of three-dimensional quartz micro-mechanical structure |
| CN103965805A (en) * | 2013-01-31 | 2014-08-06 | 戴武兵 | Adhesive composition and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105773742A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105818225B (en) | The manufacture method of low resin added environment-friendly plywood | |
| CN105856345B (en) | The manufacture method of low resin added environmental protection laminated veneer lumber | |
| CN105856343B (en) | The manufacture method of low resin added environment friendly multi-layer solid wooden compound floor | |
| CN105773742B (en) | The manufacture method of low resin added environment-friendly concrete template | |
| CN104210009B (en) | A kind of method controlling fiberboard Vertical density gradient | |
| US5962119A (en) | Gypsum wallboard and process of making same | |
| CN105643737B (en) | The low-temperature plasma modified and micro applying glue integrated apparatus of wooden thin plate | |
| CN107756556A (en) | The preparation method of Eucalyptus core integrated timber | |
| CN107363963A (en) | A kind of manufacture method of VHD superhigh intensity vegetable fibre board | |
| CN101712169A (en) | Impregnated bond paper paste veneer and preparation method thereof | |
| CN104139445B (en) | The manufacture method of indoor glued board or floor base material is glued together without aldehyde | |
| CN113319962B (en) | Control process for preventing large shaving damage of PB plate | |
| CN102120381B (en) | Method and device for continuously producing ultrathin stone polyurethane composite plates | |
| CN107663937B (en) | Manufacturing equipment for painted wood-plastic composite floor | |
| CN102877641A (en) | Production method for durable plastic surface waterproof building template | |
| CN107662265A (en) | A kind of manufacturing equipment of veneer plastic composite floor | |
| CN101642916A (en) | Manufacturing process of solid-wood panels | |
| AU777630B2 (en) | Fluid spray apparatus and method for smooth surface gypsum fiberboard panels | |
| CN106738107A (en) | A kind of manufacturing equipment of veneer plastic sheeting composite plate | |
| CN209682424U (en) | A kind of concrete glued board processing application device | |
| CN106625906A (en) | Preparation method for veneer-plastic film composite board | |
| CN103528350B (en) | The energy-conservation spray box of a kind of veneer dryer | |
| CN104526858A (en) | Airflow layer scraper of building block | |
| CN107310007B (en) | Wood fiber reinforced floor and production process thereof | |
| CN215149970U (en) | Organic glued wood-based plate production rubber coating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160720 Assignee: Jiangsu Aike Seth New Material Co. Ltd. Assignor: Nanjing Forestry University Contract record no.: 2019320000051 Denomination of invention: Manufacturing method of low-glue-consumption environmental-friendly concrete template Granted publication date: 20180504 License type: Common License Record date: 20190321 |
|
| EE01 | Entry into force of recordation of patent licensing contract |