CN106272867A - The preparation method of composite floor substrate - Google Patents
The preparation method of composite floor substrate Download PDFInfo
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- CN106272867A CN106272867A CN201610664837.5A CN201610664837A CN106272867A CN 106272867 A CN106272867 A CN 106272867A CN 201610664837 A CN201610664837 A CN 201610664837A CN 106272867 A CN106272867 A CN 106272867A
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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
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
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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
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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
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/061—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods using cutting devices
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
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- Polymers & Plastics (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
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- Materials Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses the preparation method of a kind of composite floor substrate, it comprises the following steps: step one, choose early wood and late wood, obtains the first raw material and the second raw material；Step 2, the first raw material is carried out suffocating treatment, obtain pretreated first raw material；Step 3, the method that obtained according to step by the second raw material carry out pretreatment, obtain pretreated second raw material；Step 4, pretreated first raw material and pretreated second raw material are carried out steaming and decocting respectively, then carry out fiber separation respectively through defibrator, obtain first wood fiber and second wood fiber；Step 5, first wood fiber and second wood fiber are mixed to obtain composite fibre；Floor base material is made in step 6, applying glue, hot pressing；Step 7, by floor base material is quenched through supercooling and sanding sawing obtains composite floor substrate.The composite floor substrate intensity that the present invention provides is big, shock resistance, humidity resistance are good, good stability, to be difficult to buckling deformation, burst size of methanal low.
Description
Technical field
The present invention relates to wood processing field.It is more particularly related to the preparation side of a kind of composite floor substrate
Method.
Background technology
Composite floor board, as a kind of ornament materials, is widely used in the middle of the life of people, work, and, along with people
The raising of living standard, people are increasing to the demand of composite floor board, more and more higher to its prescription.Base material
It is the main body constituting composite floor board, plays tongue-and-groove connection, stable shaped, the important function of bearing load, base in actual use
The quality of material can directly influence the quality of composite floor board.
The quality of base material is affected by many factors, such as seeds and seeds collocation, the control of moisture content of timber, production technology
And adhesive type etc..Commercially available composite floor substrate exist use timber that density is different, in the feed add cheap
Wood flour, timber are without the problem such as rational pre-treatment or production technology be coarse, thus cause composite floor substrate poor-performing,
Density is little, relatively large ropy composite floor board occurs, it is impossible to meet people's requirement to composite floor board.
Summary of the invention
It is an object of the invention to solve at least the above, and the advantage that at least will be described later is provided.
It is a still further object of the present invention to provide the preparation method of a kind of composite floor substrate, it selects the same of similar density
The early wood of one seeds and late wood as fiber raw material, by early wood and late wood respectively through pre-treatment, finally mix with certain proportion
Close, be conducive to improving density and the intensity of composite floor substrate；Processing technology of the present invention is simple to operation, with low cost, obtains
The density of composite floor substrate be up to 0.95g/cm3, and its intensity is big, shock resistance, humidity resistance are good, good stability, be difficult to
Buckling deformation, burst size of methanal are low, only 1/10th of national standard.
In order to realize according to object of the present invention and further advantage, it is provided that the preparation side of a kind of composite floor substrate
Method, it comprises the following steps:
Step one, the early wood choosing the same seeds of similar density respectively and late wood, be respectively fed to cut by early wood and late wood
Sheet machine cuts, is then sent in vibrosieve filter out multiple length 16～30mm, wide 15～25mm, the wood of thick 3～5mm
Sheet, early wood gained wood chip is the first raw material, and late wood's gained wood chip is the second raw material；By described first raw material and described second raw material
Sequentially pass through washing respectively and wind is washed；
Step 2, described first raw material being divided into three equal parts, tile described the first of equal portions in the bottom of fumigation box
Raw material, the described first raw material top pressure at equal portions sets a web plate, the most successively according to described first raw material of equal portions
The order of one described web plate, puts in described fumigation box by described first raw material, is passed through hot blast from the bottom of described fumigation box,
Advertise 8～10h；Being passed through sulfur cigarette in described first fumigation box, sootiness processes 3～4h, then passes to hot blast 30～40min；
Spraying the fumigation liquid of 35% in described first fumigation box, the pressure regulating described fumigation box is 1～1.5Mpa, and temperature is 100
～110 DEG C, stifling 1～3h, then pass to hot blast and advertise 20～30min, be passed through cold wind, advertise to described first raw material and be cooled to
25～28 DEG C, obtain pretreated first raw material；Wherein, the temperature of hot blast is 80～90 DEG C, and relative humidity is 20～30%, cold
The temperature of wind is 20～25 DEG C, and relative humidity is 18～25%；
Described fumigation liquid include mass ratio be the Rhizoma Zingiberis Recens juice of 1:2:4:0.5, mass concentration be acetum, the ethanol of 30%
And phosphoric acid；
Step 3, according to the method for step 2, described second raw material being carried out pretreatment, wherein, the hot blast temperature advertised is
85～95 DEG C, relative humidity is 20～25%, and the temperature of cold wind is 20～25 DEG C, and relative humidity is 18～25%, obtains pretreatment
After the second raw material；
It is pretreated second former that step 4, pretreated first raw material step 2 obtained and step 3 obtain
Material is respectively placed in the first cooker and the second cooker and carries out steaming and decocting, control the initial temperature of described first cooker be 60～
70 DEG C, keep 3～5min, then heat to 160～170 DEG C, continue steaming and decocting 3～5min；The initial temperature of described second cooker
Degree is 70～80 DEG C, keeps 3～5min, then heats to 170～180 DEG C, continues steaming and decocting 3～5min, from described first steaming and decocting
Tank and described second cooker take out the first raw material and the second raw material, carries out fiber separation respectively through defibrator, obtain first
The wood fiber and second wood fiber；
Step 5, described first wood fiber and described second wood fiber are mixed to get according to the ratio that weight ratio is 1:2
Composite fibre, adds the isopropanol of 10～20 times amount, stirring in described composite fibre, is passed through nitrogen, is slowly added dropwise diethanol
Amine liquid, is warming up to 60～70 DEG C, stirring reaction 24h, obtains the first reactant；Bromododecane is dissolved in isopropanol, dropwise
Adding in described first reactant that temperature is 60～70 DEG C, stirring reaction 10～16h, cooling, successively with normal hexane and acetone
Settle 1～3 time, collect precipitum, be placed in the vacuum drying oven of 70～80 DEG C and be dried 8～12h, obtain modified composite fibre；
Wherein, the consumption of described diethanolamine is the 3～9% of described composite fibre weight；
The consumption of described bromododecane is the 5～18% of described composite fibre weight；
Each consumption of described normal hexane and described acetone is the 10～20% of described composite fibre weight；
Step 6, adhesive is put on described modified composite fibre surface, after mix homogeneously by the way of hot pressing pressure
Making floor base material, described adhesive consumption is the 15～18% of described modified composite fibre quality；
Step 7, floor base material step 6 obtained is quenched through supercooling and sanding is huge cuts, obtain described compoundly
Plate substrate.
Preferably, the preparation method of described composite floor substrate, described first wood fiber and described second wood fiber
Before mixing, have passed through pretreatment, particularly as follows: described first wood fiber and described second wood fiber are respectively placed in soak
Supersound process 20～30min, filters, and is vacuum dried at 50～60 DEG C, by described first wood fiber and described second wood fiber
Moisture control is 8.5～10.0%；
Wherein, the preparation method of described soak is: weigh by weight the Rhizoma Polygonati of 3～9 parts, the Fructus Gleditsia of 5～13 parts,
The Artemisia absinihium L of the Radix Sophorae Flavescentis of 2～7 parts, the Herba Houttuyniae of 8～17 parts, the Radix et Rhizoma Dysosmatis of 7～15 parts, the Cacumen Platycladi of 8～14 parts and 12～23 parts mixes
Pulverizing after conjunction, add the water of 40～50 parts, intense fire decocts 30～40min, filters to obtain the first filtrate and the first filtering residue, by weight
Amount number weigh the mashed garlic of 1～4 part, the Fructus Capsici skin of 0.3～0.8 part and 2～5 parts Folium Momordicae Charantiae pulverize after with described first filter
Slag mixes, and adds the alcohol steep 1～2h of 30～40 parts, filters to obtain the second filtrate, by described first filtrate and described second filter
Liquid mixes, and obtains herb liquid；Fire retardant, the polyurethane of 0.3～0.8 part and 0.1～0.4 of 1～4 part is added in described herb liquid
The Colophonium of part, is sufficiently stirred for 5～10min, obtains described soak.
Preferably, the preparation method of described composite floor substrate, the preparation method of described adhesive is:
A, counting by weight, pulverizing the energy stone that the particle diameter of 0.5～1 part is 1～3cm for particle diameter is 30～100 mesh
Granule, adds in the acetone of 1～5 part and is heated to 40～50 DEG C, take out after 30～40min with the algae clay of 1～4 part and 0.2～
The activated carbon mix homogeneously of 0.7 part, pulverizing after vacuum drying is that the powder of 100～200 mesh obtains additive；
B, the synthetic resin liquid adhesive weighing 20～30 weight portions are heated to 40～50 DEG C, be added thereto to 0.1～
The dispersant of 0.5 weight portion, 0.3～0.8 weight portion firming agent and described additive, be sufficiently stirred for 10～20min, then carry out
Supersound process 40～50min, i.e. obtains described adhesive after cooling.
Preferably, the preparation method of described composite floor substrate, described dispersant is Polyethylene Glycol.
Preferably, the preparation method of described composite floor substrate, described firming agent is p-hydroxybenzenyl sulfonate.
Preferably, the preparation method of described composite floor substrate, described early wood and described late wood be selected from Lignum seu Ramulus Cunninghamiae Lanceolatae or
One in Codium fragile (Sur.) Har..
Preferably, the preparation method of described composite floor substrate, in described heat-press step, hot pressing temperature 175～
225 DEG C, use five sections of hot pressing temperature districts, hot pressing pressure 0～4MPa, the hot pressing factor 7.0～8.0s/mm.
The present invention at least includes following beneficial effect:
1, the present invention selects the early wood of same seeds of similar density and late wood as fiber raw material, the evening of same seeds
The length-width ratio of the fiber of material is relatively big, has preferable felt properties, and the fiber of early wood is shorter, can with the space between fill fiber,
Increase the contact area between fiber, by early wood and late wood respectively through pre-treatment, finally mix with certain proportion, be conducive to carrying
The density of high composite floor substrate and intensity；Processing technology of the present invention is simple to operation, with low cost, the composite floor board base obtained
The density of material is up to 0.95g/cm3, and its intensity is big, shock resistance, humidity resistance are good, good stability, be difficult to buckling deformation, formaldehyde
Burst size is low, only 1/10th of national standard；The present invention has environmental protection, the advantage that promotional value is high；
2, the first raw material and the second raw material are put into and are carried out pretreatment in fumigation box by the present invention respectively, reduce the aqueous of timber
Rate, by moisture control below 23%, facilitates the later stage various operations to timber, the web plate that pressure sets to prevent timber because of moisture stream
The phenomenon lost and cause its edge to roll, is passed through, for different raw materials, the hot blast that temperature and humidity is different, saves pretreatment
Time and cost, after being passed through the hot air drying of a period of time, use sulfur and fumigation liquid to the first raw material and the second raw material successively
Fumigating, sulfur and fumigation liquid can drive away parasitic nematicide in wood, prevent timber infested, mouldy, rotten, it is possible to change
Kind first raw material and the physical property of the second raw material, fumigation liquid can adsorb the sulfur dioxide removing sulfur cigarette residual simultaneously；
3, the present invention has carried out modification to composite fibre, is introduced in composite fibre by water-repelling agent bromododecane, makes
Obtain composite fibre and have certain hydrophobicity, promote the water resistance of composite floor substrate further, fiber can be regulated simultaneously
Sophistication and conjunctiva so that applying glue, hot pressing technological operation faster, the composite floor substrate of compacting is more closely knit, thus increases
Add the density of product composite floor substrate；
4, the present invention adds additive in synthetic resin liquid adhesive and prepares new adhesive, the energy in additive
Stone can increase the breathability of composite floor substrate, kieselguhr and charcoal powder can formaldehyde adsorption, reduce composite floor substrate
The burst size of formaldehyde, add that dispersant makes that additive can mix with synthetic resin liquid adhesive is more uniform, solidifies
Agent promotes the solidification of adhesive when composite floor substrate is made in hot pressing；
5, first wood fiber and second wood fiber through fiber isolated is placed in supersound process in soak, soak
In Effective Component of Chinese Medicine can enter fiber and growth hole in, Rhizoma Polygonati, Fructus Gleditsia, Radix Sophorae Flavescentis, Herba Houttuyniae, Radix et Rhizoma Dysosmatis, Cacumen Platycladi and hardship
Chinese mugwort has effect antibacterial, pest-resistant, and mashed garlic, Fructus Capsici skin and Folium Momordicae Charantiae have anthelmintic action, herb liquid to have with delicate fragrance taste, tool
There is certain effect of calming the nerves, in herb liquid, add a certain amount of fire retardant so that composite floor substrate has fire resistance, poly-
Urethane and Colophonium can increase by first wood fiber and the adhesion of second wood fiber.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by this
Invention research and practice and be understood by the person skilled in the art.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, to make those skilled in the art with reference to description
Word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or many
Other element individual or the existence of a combination thereof or interpolation.
It should be noted that experimental technique described in following embodiment, if no special instructions, it is conventional method, institute
State reagent and material, if no special instructions, the most commercially obtain.
<embodiment 1>
The present invention provides the preparation method of a kind of composite floor substrate, and it comprises the following steps:
Step one, the early wood choosing the Lignum seu Ramulus Cunninghamiae Lanceolatae of similar density respectively and late wood, be respectively fed to wood chipping equipment by early wood and late wood
In cut, be then sent in vibrosieve filter out multiple long 16mm, wide 15mm, the wood chip of thick 3mm, early wood gained wood chip
Being the first raw material, late wood's gained wood chip is the second raw material；Described first raw material and described second raw material are sequentially passed through water respectively
Wash and wash with wind；
Step 2, described first raw material being divided into three equal parts, tile described the first of equal portions in the bottom of fumigation box
Raw material, the described first raw material top pressure at equal portions sets a web plate, the most successively according to described first raw material of equal portions
The order of one described web plate, puts in described fumigation box by described first raw material, is passed through hot blast from the bottom of described fumigation box,
Advertise 8h；Being passed through sulfur cigarette in described first fumigation box, sootiness processes 3h, then passes to hot blast 30min；Smoke to described first
Spraying the fumigation liquid of 35% in steam box, the pressure regulating described fumigation box is 1Mpa, and temperature is 100 DEG C, stifling 1h, then passes to
Hot blast advertises 20min, is passed through cold wind, advertises and is cooled to 25 DEG C to described first raw material, obtains pretreated first raw material；Its
In, the temperature of hot blast is 80 DEG C, and relative humidity is 20%, and the temperature of cold wind is 20 DEG C, and relative humidity is 18%；
Described fumigation liquid include mass ratio be the Rhizoma Zingiberis Recens juice of 1:2:4:0.5, mass concentration be acetum, the ethanol of 30%
And phosphoric acid；
Step 3, according to the method for step 2, described second raw material being carried out pretreatment, wherein, the hot blast temperature advertised is
85 DEG C, relative humidity is 20%, and the temperature of cold wind is 20 DEG C, and relative humidity is 18%, obtains pretreated second raw material；
It is pretreated second former that step 4, pretreated first raw material step 2 obtained and step 3 obtain
Material is respectively placed in the first cooker and the second cooker and carries out steaming and decocting, and the initial temperature controlling described first cooker is 60
DEG C, keep 3min, then heat to 160 DEG C, continue steaming and decocting 3min；The initial temperature of described second cooker is 70 DEG C, keeps
3min, then heats to 170 DEG C, continues steaming and decocting 3min, takes out first from described first cooker and described second cooker
Raw material and the second raw material, carry out fiber separation respectively through defibrator, obtains first wood fiber and second wood fiber；
Step 5, supersound process 20min in soak will be respectively placed in, filter, be vacuum dried at 50 DEG C, by described first
The moisture control of the wood fiber and described second wood fiber is 8.5%, by pretreated first wood fiber and pretreated
Second wood fiber is mixed to get composite fibre according to the ratio that weight ratio is 1:2, adds 10 times amount in described composite fibre
Isopropanol, stirring, it is passed through nitrogen, is slowly added dropwise diethanolamine liquid, be warming up to 60 DEG C, stirring reaction 24h, obtain the first reaction
Thing；Bromododecane is dissolved in isopropanol, is added dropwise in described first reactant that temperature is 60 DEG C, stirring reaction 10h,
Cooling, settles 1 time with normal hexane and acetone successively, collects precipitum, be placed in the vacuum drying oven of 70 DEG C and be dried 8h, obtain modified
Composite fibre；
Wherein, the preparation method of described soak is: weigh the Rhizoma Polygonati of 3 parts, the Fructus Gleditsia of 5 parts, the hardship of 2 parts by weight
Pulverize after the Artemisia absinihium L mixing of ginseng, the Herba Houttuyniae of 8 parts, the Radix et Rhizoma Dysosmatis of 7 parts, the Cacumen Platycladi of 8 parts and 12 parts, add the water of 40 parts,
Intense fire decocts 30min, filters to obtain the first filtrate and the first filtering residue, weighs the mashed garlic of 1 part, the Fructus Capsici of 0.3 part by weight
The Folium Momordicae Charantiae of skin and 2 parts mixes with described first filtering residue after pulverizing, and adds the alcohol steep 1h of 30 parts, filters to obtain the second filtrate,
By described first filtrate and described second filtrate mixing, obtain herb liquid；In described herb liquid add 1 part fire retardant, 0.3 part
Polyurethane and the Colophonium of 0.1 part, be sufficiently stirred for 5min, obtain described soak；
The consumption of described diethanolamine is the 3% of described composite fibre weight；
The consumption of described bromododecane is the 5% of described composite fibre weight；
Each consumption of described normal hexane and described acetone is the 10% of described composite fibre weight；
Step 6, prepare adhesive:
A, counting by weight, pulverizing the energy stone that the particle diameter of 0.5 part is 1cm for particle diameter is 30 mesh granules, adds 1 part
Acetone in be heated to 40 DEG C, the activated carbon taking out algae clay with 1 part and 0.2 part after 30min is mixed homogeneously, after vacuum drying
Pulverizing is that the powder of 100 mesh obtains additive；
B, the synthetic resin liquid adhesive weighing 20 weight portions are heated to 40 DEG C, are added thereto to the poly-of 0.1 weight portion
Ethylene glycol, the p-hydroxybenzenyl sulfonate of 0.3 weight portion and described additive, be sufficiently stirred for 10min, then carry out supersound process 40min,
Described adhesive is i.e. obtained after cooling；
Adhesive is put on described modified composite fibre surface, by the way of hot pressing, after mix homogeneously, is pressed into floor
Base material, described adhesive consumption is the 15% of described modified composite fibre quality；Wherein, hot pressing temperature, at 175 DEG C, uses five sections
Hot pressing temperature district, hot pressing pressure 0MPa, hot pressing factor 7.0s/mm；
Step 7, floor base material step 6 obtained is quenched through supercooling and sanding is huge cuts, obtain described compoundly
Plate substrate.
<embodiment 2>
The present invention provides the preparation method of a kind of composite floor substrate, and it comprises the following steps:
Step one, the early wood choosing the Lignum seu Ramulus Cunninghamiae Lanceolatae of similar density respectively and late wood, be respectively fed to wood chipping equipment by early wood and late wood
In cut, be then sent in vibrosieve filter out multiple long 30mm, wide 25mm, the wood chip of thick 5mm, early wood gained wood chip
Being the first raw material, late wood's gained wood chip is the second raw material；Described first raw material and described second raw material are sequentially passed through water respectively
Wash and wash with wind；
Step 2, described first raw material being divided into three equal parts, tile described the first of equal portions in the bottom of fumigation box
Raw material, the described first raw material top pressure at equal portions sets a web plate, the most successively according to described first raw material of equal portions
The order of one described web plate, puts in described fumigation box by described first raw material, is passed through hot blast from the bottom of described fumigation box,
Advertise 10h；Being passed through sulfur cigarette in described first fumigation box, sootiness processes 4h, then passes to hot blast 40min；To described first
Spraying the fumigation liquid of 35% in fumigation box, the pressure regulating described fumigation box is 1.5Mpa, and temperature is 110 DEG C, stifling 3h, then
It is passed through hot blast and advertises 30min, be passed through cold wind, advertise and be cooled to 28 DEG C to described first raw material, obtain pretreated first raw material；
Wherein, the temperature of hot blast is 90 DEG C, and relative humidity is 30%, and the temperature of cold wind is 25 DEG C, and relative humidity is 25%；
Described fumigation liquid include mass ratio be the Rhizoma Zingiberis Recens juice of 1:2:4:0.5, mass concentration be acetum, the ethanol of 30%
And phosphoric acid；
Step 3, according to the method for step 2, described second raw material being carried out pretreatment, wherein, the hot blast temperature advertised is
95 DEG C, relative humidity is 25%, and the temperature of cold wind is 25 DEG C, and relative humidity is 25%, obtains pretreated second raw material；
It is pretreated second former that step 4, pretreated first raw material step 2 obtained and step 3 obtain
Material is respectively placed in the first cooker and the second cooker and carries out steaming and decocting, and the initial temperature controlling described first cooker is 70
DEG C, keep 5min, then heat to 170 DEG C, continue steaming and decocting 5min；The initial temperature of described second cooker is 80 DEG C, keeps
5min, then heats to 180 DEG C, continues steaming and decocting 5min, takes out first from described first cooker and described second cooker
Raw material and the second raw material, carry out fiber separation respectively through defibrator, obtains first wood fiber and second wood fiber；
Step 5, supersound process 30min in soak will be respectively placed in, filter, be vacuum dried at 60 DEG C, by described first
The moisture control of the wood fiber and described second wood fiber is 10.0%, by pretreated first wood fiber and pretreated
Second wood fiber is mixed to get composite fibre according to the ratio that weight ratio is 1:2, adds 20 times amount in described composite fibre
Isopropanol, stirring, it is passed through nitrogen, is slowly added dropwise diethanolamine liquid, be warming up to 70 DEG C, stirring reaction 24h, obtain the first reaction
Thing；Bromododecane is dissolved in isopropanol, is added dropwise in described first reactant that temperature is 70 DEG C, stirring reaction 16h,
Cooling, settles 3 times with normal hexane and acetone successively, collects precipitum, be placed in the vacuum drying oven of 80 DEG C and be dried 12h, must change
Property composite fibre；
Wherein, the preparation method of described soak is: weigh by weight the Rhizoma Polygonati of 9 parts, the Fructus Gleditsia of 13 parts, 7 parts
Pulverize after the Artemisia absinihium L mixing of Radix Sophorae Flavescentis, the Herba Houttuyniae of 17 parts, the Radix et Rhizoma Dysosmatis of 15 parts, the Cacumen Platycladi of 14 parts and 23 parts, add 50 parts
Water, intense fire decocts 40min, filters to obtain the first filtrate and the first filtering residue, weigh by weight 4 parts mashed garlic, 0.8 part
The Folium Momordicae Charantiae of Fructus Capsici skin and 5 parts mix with described first filtering residue after pulverizing, and adds the alcohol steep 2h of 40 parts, filters and to obtain second and filter
Liquid, by described first filtrate and described second filtrate mixing, obtains herb liquid；In described herb liquid add 4 parts fire retardant,
The polyurethane of 0.8 part and the Colophonium of 0.4 part, be sufficiently stirred for 10min, obtains described soak；
The consumption of described diethanolamine is the 9% of described composite fibre weight；
The consumption of described bromododecane is the 18% of described composite fibre weight；
Each consumption of described normal hexane and described acetone is the 20% of described composite fibre weight；
Step 6, prepare adhesive:
A, counting by weight, pulverizing the energy stone that the particle diameter of 1 part is 3cm for particle diameter is 100 mesh granules, adds 5 parts
Acetone in be heated to 50 DEG C, the activated carbon taking out algae clay with 4 parts and 0.7 part after 40min is mixed homogeneously, after vacuum drying
Pulverizing is that the powder of 200 mesh obtains additive；
B, the synthetic resin liquid adhesive weighing 30 weight portions are heated to 50 DEG C, are added thereto to the poly-of 0.5 weight portion
Ethylene glycol, the p-hydroxybenzenyl sulfonate of 0.8 weight portion and described additive, be sufficiently stirred for 20min, then carry out supersound process 50min,
Described adhesive is i.e. obtained after cooling；
Adhesive is put on described modified composite fibre surface, by the way of hot pressing, after mix homogeneously, is pressed into floor
Base material, described adhesive consumption is the 18% of described modified composite fibre quality；Wherein, hot pressing temperature, at 225 DEG C, uses five sections
Hot pressing temperature district, hot pressing pressure 4MPa, hot pressing factor 8.0s/mm；
Step 7, floor base material step 6 obtained is quenched through supercooling and sanding is huge cuts, obtain described compoundly
Plate substrate.
<embodiment 3>
The present invention provides the preparation method of a kind of composite floor substrate, and it comprises the following steps:
Step one, the early wood choosing the Codium fragile (Sur.) Har. of similar density respectively and late wood, be respectively fed to wood chipping equipment by early wood and late wood
In cut, be then sent in vibrosieve filter out multiple long 23mm, wide 20mm, the wood chip of thick 4mm, early wood gained wood chip
Being the first raw material, late wood's gained wood chip is the second raw material；Described first raw material and described second raw material are sequentially passed through water respectively
Wash and wash with wind；
Step 2, described first raw material being divided into three equal parts, tile described the first of equal portions in the bottom of fumigation box
Raw material, the described first raw material top pressure at equal portions sets a web plate, the most successively according to described first raw material of equal portions
The order of one described web plate, puts in described fumigation box by described first raw material, is passed through hot blast from the bottom of described fumigation box,
Advertise 9h；Being passed through sulfur cigarette in described first fumigation box, sootiness processes 3.5h, then passes to hot blast 35min；To described first
Spraying the fumigation liquid of 35% in fumigation box, the pressure regulating described fumigation box is 1.3Mpa, and temperature is 105 DEG C, stifling 2h, then
It is passed through hot blast and advertises 25min, be passed through cold wind, advertise and be cooled to 27 DEG C to described first raw material, obtain pretreated first raw material；
Wherein, the temperature of hot blast is 85 DEG C, and relative humidity is 25%, and the temperature of cold wind is 23 DEG C, and relative humidity is 22%；
Described fumigation liquid include mass ratio be the Rhizoma Zingiberis Recens juice of 1:2:4:0.5, mass concentration be acetum, the ethanol of 30%
And phosphoric acid；
Step 3, according to the method for step 2, described second raw material being carried out pretreatment, wherein, the hot blast temperature advertised is
90 DEG C, relative humidity is 23%, and the temperature of cold wind is 23 DEG C, and relative humidity is 22%, obtains pretreated second raw material；
It is pretreated second former that step 4, pretreated first raw material step 2 obtained and step 3 obtain
Material is respectively placed in the first cooker and the second cooker and carries out steaming and decocting, and the initial temperature controlling described first cooker is 65
DEG C, keep 4min, then heat to 165 DEG C, continue steaming and decocting 4min；The initial temperature of described second cooker is 75 DEG C, keeps
4min, then heats to 175 DEG C, continues steaming and decocting 4min, takes out first from described first cooker and described second cooker
Raw material and the second raw material, carry out fiber separation respectively through defibrator, obtains first wood fiber and second wood fiber；
Step 5, supersound process 25min in soak will be respectively placed in, filter, be vacuum dried at 55 DEG C, by described first
The moisture control of the wood fiber and described second wood fiber is 9.2%, by pretreated first wood fiber and pretreated
Second wood fiber is mixed to get composite fibre according to the ratio that weight ratio is 1:2, adds 15 times amount in described composite fibre
Isopropanol, stirring, it is passed through nitrogen, is slowly added dropwise diethanolamine liquid, be warming up to 65 DEG C, stirring reaction 24h, obtain the first reaction
Thing；Bromododecane is dissolved in isopropanol, is added dropwise in described first reactant that temperature is 65 DEG C, stirring reaction 13h,
Cooling, settles 2 times with normal hexane and acetone successively, collects precipitum, be placed in the vacuum drying oven of 75 DEG C and be dried 10h, must change
Property composite fibre；
Wherein, the preparation method of described soak is: weigh the Rhizoma Polygonati of 6 parts, the Fructus Gleditsia of 9 parts, the hardship of 5 parts by weight
Pulverize after the Artemisia absinihium L mixing of ginseng, the Herba Houttuyniae of 13 parts, the Radix et Rhizoma Dysosmatis of 11 parts, the Cacumen Platycladi of 11 parts and 18 parts, add 45 parts
Water, intense fire decocts 35min, filters to obtain the first filtrate and the first filtering residue, weigh the mashed garlic of 3 parts, 0.6 part peppery by weight
The Folium Momordicae Charantiae of green pepper skin and 4 parts mix with described first filtering residue after pulverizing, and adds the alcohol steep 1.5h of 35 parts, filters and to obtain second and filter
Liquid, by described first filtrate and described second filtrate mixing, obtains herb liquid；In described herb liquid add 3 parts fire retardant,
The polyurethane of 0.6 part and the Colophonium of 0.3 part, be sufficiently stirred for 8min, obtains described soak；
The consumption of described diethanolamine is the 6% of described composite fibre weight；
The consumption of described bromododecane is the 12% of described composite fibre weight；
Each consumption of described normal hexane and described acetone is the 15% of described composite fibre weight；
Step 6, prepare adhesive:
A, counting by weight, pulverizing the energy stone that the particle diameter of 0.8 part is 2cm for particle diameter is 65 mesh granules, adds 3 parts
Acetone in be heated to 45 DEG C, the activated carbon taking out algae clay with 3 parts and 0.5 part after 35min is mixed homogeneously, after vacuum drying
Pulverizing is that the powder of 150 mesh obtains additive；
B, the synthetic resin liquid adhesive weighing 25 weight portions are heated to 45 DEG C, are added thereto to the poly-of 0.3 weight portion
Ethylene glycol, the p-hydroxybenzenyl sulfonate of 0.6 weight portion and described additive, be sufficiently stirred for 15min, then carry out supersound process 45min,
Described adhesive is i.e. obtained after cooling；
Adhesive is put on described modified composite fibre surface, by the way of hot pressing, after mix homogeneously, is pressed into floor
Base material, described adhesive consumption is the 17% of described modified composite fibre quality；Wherein, hot pressing temperature, at 200 DEG C, uses five sections
Hot pressing temperature district, hot pressing pressure 2MPa, hot pressing factor 7.5s/mm；
Step 7, floor base material step 6 obtained is quenched through supercooling and sanding is huge cuts, obtain described compoundly
Plate substrate.
<performance test>
Reference standard GB/T17657-1999 (test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels), tests the present invention
The Physical and mechanical properties of the high density composite floor board base material that embodiment 3 prepares, result is as shown in table 1:
Table 1 the performance test results
As can be seen from Table 1, the embodiment of the present invention 3 is by selecting early wood and late wood's conduct of the same seeds of similar density
Fiber raw material, by early wood and late wood respectively through pre-treatment, finally mixes with certain proportion, is conducive to improving composite floor board base
The density of material and intensity；Processing technology of the present invention is simple to operation, with low cost, and the density of the composite floor substrate obtained is up to
0.95g/cm3, and its intensity is big, shock resistance, humidity resistance are good, good stability, to be difficult to buckling deformation, burst size of methanal low, only
For national standard 1/10th.
Number of devices described herein and treatment scale are used to the explanation of the simplification present invention.To the application of the present invention,
Modifications and variations will be readily apparent to persons skilled in the art.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Using, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details.
Claims (7)
1. the preparation method of a composite floor substrate, it is characterised in that it comprises the following steps:
Step one, the early wood choosing the same seeds of similar density respectively and late wood, be respectively fed to wood chipping equipment by early wood and late wood
In cut, be then sent in vibrosieve filter out multiple length 16～30mm, wide 15～25mm, the wood chip of thick 3～5mm,
Early wood gained wood chip is the first raw material, and late wood's gained wood chip is the second raw material；Described first raw material and described second raw material are divided
Do not sequentially pass through washing and wind is washed；
Step 2, described first raw material is divided into three equal parts, described first raw material of the equal portions that tile in the bottom of fumigation box,
Described first raw material top pressure at equal portions sets a web plate, the most successively according to described one institute of first raw material of equal portions
State the order of web plate, described first raw material is put in described fumigation box, is passed through hot blast from the bottom of described fumigation box, advertises 8
～10h；Being passed through sulfur cigarette in described first fumigation box, sootiness processes 3～4h, then passes to hot blast 30～40min；To described
Spraying the fumigation liquid of 35% in first fumigation box, the pressure regulating described fumigation box is 1～1.5Mpa, and temperature is 100～110
DEG C, stifling 1～3h, then pass to hot blast and advertise 20～30min, be passed through cold wind, advertise to described first raw material be cooled to 25～
28 DEG C, obtain pretreated first raw material；Wherein, the temperature of hot blast is 80～90 DEG C, and relative humidity is 20～30%, cold wind
Temperature is 20～25 DEG C, and relative humidity is 18～25%；Moisture content
Described fumigation liquid include mass ratio be the Rhizoma Zingiberis Recens juice of 1:2:4:0.5, mass concentration be acetum, ethanol and the phosphorus of 30%
Acid；
Step 3, described second raw material is carried out pretreatment according to the method for step 2, wherein, the hot blast temperature advertised be 85～
95 DEG C, relative humidity is 20～25%, and the temperature of cold wind is 20～25 DEG C, and relative humidity is 18～25%, obtains pretreated
Second raw material；
Pretreated second raw material that step 4, pretreated first raw material step 2 obtained and step 3 obtain divides
Not being placed in the first cooker and the second cooker and carry out steaming and decocting, the initial temperature controlling described first cooker is 60～70
DEG C, keep 3～5min, then heat to 160～170 DEG C, continue steaming and decocting 3～5min；The initial temperature of described second cooker
It is 70～80 DEG C, keeps 3～5min, then heat to 170～180 DEG C, continue steaming and decocting 3～5min, from described first cooker
With described second cooker takes out the first raw material and the second raw material, carry out fiber separation respectively through defibrator, obtain first wood
Fiber and second wood fiber；
Step 5, described first wood fiber and described second wood fiber are mixed to get mixing according to the ratio that weight ratio is 1:2
Fiber, adds the isopropanol of 10～20 times amount, stirring in described composite fibre, is passed through nitrogen, is slowly added dropwise diethanolamine liquid
Body, is warming up to 60～70 DEG C, stirring reaction 24h, obtains the first reactant；Bromododecane is dissolved in isopropanol, is added dropwise over
Temperature is in described first reactant of 60～70 DEG C, stirring reaction 10～16h, cooling, successively with normal hexane and acetone sedimentation 1
～3 times, collect precipitum, be placed in the vacuum drying oven of 70～80 DEG C and be dried 8～12h, obtain modified composite fibre；
Wherein, the consumption of described diethanolamine is the 3～9% of described composite fibre weight；
The consumption of described bromododecane is the 5～18% of described composite fibre weight；
Each consumption of described normal hexane and described acetone is the 10～20% of described composite fibre weight；
Step 6, adhesive is put on described modified composite fibre surface, be pressed into by the way of hot pressing after mix homogeneously
Floor base material, described adhesive consumption is the 15～18% of described modified composite fibre quality；
Step 7, floor base material step 6 obtained is quenched through supercooling and sanding is huge cuts, and obtains described composite floor board base
Material.
2. the preparation method of composite floor substrate as claimed in claim 1, it is characterised in that described first wood fiber and described
Before second wood fiber mixing, have passed through pretreatment, particularly as follows: described first wood fiber and described second wood fiber are put respectively
Supersound process 20～30min in soak, filter, and are vacuum dried at 50～60 DEG C, by described first wood fiber and described the
The moisture control of two wood fiber is 8.5～10.0%；
Wherein, the preparation method of described soak is: weigh by weight the Rhizoma Polygonati of 3～9 parts, the Fructus Gleditsia of 5～13 parts, 2～7
After the Artemisia absinihium L mixing of Radix Sophorae Flavescentis, the Herba Houttuyniae of 8～17 parts, the Radix et Rhizoma Dysosmatis of 7～15 parts, the Cacumen Platycladi of 8～14 parts and 12～23 parts of part
Pulverizing, add the water of 40～50 parts, intense fire decocts 30～40min, filters to obtain the first filtrate and the first filtering residue, by weight
Several Folium Momordicae Charantiaes weighing the mashed garlic of 1～4 part, the Fructus Capsici skin of 0.3～0.8 part and 2～5 parts mix with described first filtering residue after pulverizing
Close, add the alcohol steep 1～2h of 30～40 parts, filter to obtain the second filtrate, described first filtrate and described second filtrate are mixed
Close, obtain herb liquid；Fire retardant, the polyurethane of 0.3～0.8 part and 0.1～0.4 part of addition 1～4 part in described herb liquid
Colophonium, is sufficiently stirred for 5～10min, obtains described soak.
3. the preparation method of composite floor substrate as claimed in claim 2, it is characterised in that the preparation method of described adhesive
For:
A, counting by weight, pulverizing the energy stone that particle diameter is 1～3cm of 0.5～1 weight portion for particle diameter is 30～100 mesh
Granule, adds in the acetone of 1～5 weight portions and is heated to 40～50 DEG C, takes out the algae clay with 1～4 weight portions after 30～40min
Activated carbon mix homogeneously with 0.2～0.7 part, pulverizing after vacuum drying is that the powder of 100～200 mesh obtains additive；
B, the synthetic resin liquid adhesive weighing 20～30 weight portions are heated to 40～50 DEG C, are added thereto to 0.1～0.5 weight
Amount the dispersant of part, 0.3～0.8 weight portion firming agent and described additive, be sufficiently stirred for 10～20min, then carry out ultrasonic
Process 40～50min, after cooling, i.e. obtain described adhesive.
4. the preparation method of composite floor substrate as claimed in claim 3, it is characterised in that described dispersant is poly-second two
Alcohol.
5. the preparation method of composite floor substrate as claimed in claim 4, it is characterised in that described firming agent is para hydroxybenzene
Sulfonic acid.
6. the preparation method of composite floor substrate as claimed in claim 5, it is characterised in that described early wood and described late wood are equal
One in Lignum seu Ramulus Cunninghamiae Lanceolatae or Codium fragile (Sur.) Har..
7. the preparation method of composite floor substrate as claimed in claim 6, it is characterised in that in described heat-press step, hot pressing
Temperature, at 175～225 DEG C, uses five sections of hot pressing temperature districts, hot pressing pressure 0～4MPa, the hot pressing factor 7.0～8.0s/mm.
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| CN106985246A (en) * | 2017-03-28 | 2017-07-28 | 常州大学 | A kind of preparation method of anti-corrosion type Formaldehyde Free Wood-based Panel |
| CN107474569A (en) * | 2017-08-28 | 2017-12-15 | 安徽智博新材料科技有限公司 | A kind of preparation technology and its application method for the stifling material of synthetic plate |
| CN108393994A (en) * | 2018-03-05 | 2018-08-14 | 湖州市南浔广达木业有限公司 | A kind of production technology of sootiness timber floor |
| CN109016008A (en) * | 2018-08-17 | 2018-12-18 | 阜阳大可新材料股份有限公司 | A kind of children's puzzle special thin type ring secrecy plate producing process |
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