CN106239645A - Use the method that anticorrosion composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor - Google Patents
Use the method that anticorrosion composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor Download PDFInfo
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- CN106239645A CN106239645A CN201610752569.2A CN201610752569A CN106239645A CN 106239645 A CN106239645 A CN 106239645A CN 201610752569 A CN201610752569 A CN 201610752569A CN 106239645 A CN106239645 A CN 106239645A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention uses the method that anticorrosion composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor, and step is: plank blade → veneer drying → gluing → tri-time cold pressing → stand health preserving → tri-time hot pressing → heat radiation health preserving → slab fixed thickness sanding → base material top layer gluing → health preserving fluting → leaching paint dryness finalization.Production method of the present invention it is crucial that use cyanurotriamide modified urea resin be adhesive major ingredient, add Oxytarch be viscosity complexing agent；Polyvinyl alcohol is toughener；Hydrogenated rosin is antioxidant；Polyisocyanate is firming agent；Isobutyl triethoxy silane is bridging agent；Phenolate lignin is formaldehyde catching agent and adds the anticorrosion composite urea formaldehyde resin that preservative is prepared from again, it is low that the solid wooden compound floor using anticorrosion composite urea formaldehyde resin to produce has residual formaldehyde amount, the advantage of favorable anti-corrosion effect, to domestomycetes, mycete and Coptotermes formosanus Shtrari. have preferable resistance, extend the service life of full Eucalyptus solid wooden compound floor.
Description
Technical field
The invention belongs to wood-based plate and manufacture field, produce full Eucalyptus solid wood especially with anticorrosion composite urea formaldehyde resin and be combined
The method on floor.
Background technology
Along with the development of China's economic, the raising of living standards of the people, the requirement to house decoration the most constantly improves.Wood
Floor, because of its naturally graceful lines, good texture, becomes the preferred material of family's ground surface finishing.And solid wooden compound floor
The shortcoming overcoming solid wooden floor board moisture expansion and drying shrinkage, has preferable dimensional stability, remains the wood naturally of solid wooden floor board simultaneously
Stricture of vagina and comfortable feel, thus become the important kind in floor.Solid wooden compound floor is by the sheet material crosswise lamination of different tree species
Forming, the shortcoming overcoming the unidirectional same sex of solid wooden floor board, drying shrinkage bulking factor is little.Solid wooden compound floor has stablizing of consolidated floor concurrently
Property with the aesthetic property of solid wooden floor board, and there is environment-friendly advantage, and the advantage of the existing common solid wooden floor board of solid wooden compound floor,
The most effectively have adjusted the internal stress between timber, improve timber and change and deflection shortcoming greatly with humidity in season, because of
This, liked by consumer.
And sandwich layer many employings Eucalyptus monolithic of solid wooden compound floor is formed by adhesive pressing.Eucalyptus is Myrtaceae
The general designation of Myrtaceae Eucalyptus Eucalyptus plant, Eucalyptus strong adaptability, dead soil also is able to growth, and raw
Long speed is fast, and nursing cost is low, and therefore cultivated area increases year by year.Eucalyptus Wood is red, glossy, without special odor, texture
Interlock, structure is close, material is the heaviest, flexible.The bigger Eucalyptus of footpath level by being peeled into veneer, as central layer produce plywood or
Laminated veneer lumber, and small diameter grade, brush wood or be difficult to the Eucalyptus of rotary-cut and be processed into wood chip, for papermaking or produce fibre board, because of
The comprehensive utilization ratio of this Eucalyptus can improve to more than 90%.
In recent years, the Guangdong and Guangxi Provinces of south China, Yunnan, Fujian, Guizhou, Hainan etc. save and start to introduce a fine variety by state-owned east gate, Guangxi woods
The fast-growing Eucalyptus kind that field is cultivated, fast-growing Eucalyptus is the leaf wood of a kind of light color, and wood grain is tight and irregular, and sapwood layer is relatively wide,
In white to pale pink；The light brown red that heartwood has.Fast-growing eucalyptus globulus fast growth, can become a useful person for 3 years at present, and hill farmer is planted in a large number
Plant, accounted for more than the 50% of the available timber in south, added the such as arboreal growth such as pinaster, Cunninghamia lanceolata (Lamb.) Hook., margosa of original seeds relatively
Slowly, it is no longer able to haggle as wildwood and cuts down, and the timber yield of 1 mu of fast-growing eucalyptus globulus is equivalent to the wildwood yield of more than 5 mu,
Eucalyptus only accounts for the 13.7% of forest in Guangxi area, but solves Guangxi more than 80%, the timber demand in the whole nation more than 20%.And it is current
China successfully develops high-performance Eucalyptus recombinant material, Eucalyptus laminated veneer lumber, bamboo eucalyptus globulus composite, thick core Eucalyptus solid wood are combined
Sheet material and without aldehyde Eucalyptus plywood making technology etc., Eucalyptus is more and more universal in the application of wood-based plate.
There is presently no the document report producing full Eucalyptus solid wooden compound floor with anticorrosion composite urea formaldehyde resin for glue.And
Full Eucalyptus solid wooden compound floor is wood materials, easily by biological attack such as bacterium, worm, the raw boring in sea worms, easily rots, so full eucalyptus globulus
The decay resistance of wood solid wooden compound floor is the highest, pest-resistant poor performance so that it is somewhat limited on utilizing.Therefore, for
The corrosion resistance of raising full Eucalyptus solid wooden compound floor and insect resistance capacity, extend the use longevity of full Eucalyptus solid wooden compound floor
Life, full Eucalyptus solid wooden compound floor is carried out preservative treatment is necessary.At present, people are to full Eucalyptus solid wooden compound floor
The research of antiseptic property is attached great importance to, and how to manufacture production and have Anticorrosive Character and the full Eucalyptus not polluted environment
Solid wooden compound floor, extends the service life of full Eucalyptus solid wooden compound floor, is the current urgent problems of people.
Summary of the invention
For the technological deficiency of above-mentioned existence, it is an object of the invention to provide a kind of employing anticorrosion composite urea formaldehyde resin and produce
The method of full Eucalyptus solid wooden compound floor, solves the most full Eucalyptus solid wooden compound floor easily by biologies such as bacterium, worm, the raw boring in sea worms
Invasion and attack, hold perishable problem.
Production method of the present invention it is crucial that use cyanurotriamide modified urea resin be adhesive major ingredient, add oxidation form sediment
Powder is viscosity complexing agent；Polyvinyl alcohol is toughener；Hydrogenated rosin is antioxidant；Polyisocyanate is firming agent；Isobutyl group
Triethoxysilane is bridging agent；Phenolate lignin is formaldehyde catching agent and adds the anticorrosion that preservative is prepared from again and be combined urea
Urea formaldehyde, it is low that this composite urea formaldehyde resin has residual formaldehyde amount, the advantage that antiseptic property is good, the effective active composition in preservative
Domestomycetes, mycete and Coptotermes formosanus Shtrari. are had preferable resistance, extends the service life of full Eucalyptus solid wooden compound floor, do not affect glue
The bonding strength of stick, is uniformly dispersed in adhesive, can permeate to wood internal with glue, make product reach long-effective corrosion
Function, it is often more important that, this most safe and efficient low toxicity of several materials.And in process of production, produced by strict control
Technological parameter in journey, it is ensured that the quality of the solid wooden compound floor of production.
For realizing the purpose of the present invention, the present invention adopts the following technical scheme that
The method using anticorrosion composite urea formaldehyde resin to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is anticorrosion composite urea formaldehyde resin, single spreading amount
It is 200～230g/m2；
Colding pressing for (4) three times: be 0.8～0.9MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, every time
10～15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.5～3.0MPa, and the temperature of hot pressing for the first time is 130～135 DEG C；The temperature of hot pressing for the second time is 125～130 DEG C,
The temperature of hot pressing for the third time is 135～140 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat anticorrosion be combined urea aldehyde tree without wane, fissureless birch veneer
Fat is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.5～3.0MPa, and hot pressing temperature is 130～135 DEG C, heat
The pressure time is 10～15min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Anticorrosion composite urea formaldehyde resin described in step (3) and step (9), is made up of the raw material of following parts by weight:
Cyanurotriamide modified urea resin 50～100 parts；
Oxytarch 20～30 parts；
Polyvinyl alcohol 1～3 parts；
Hydrogenated rosin 3～8 parts；
Propanediol polyoxypropylene polyvinylether 2～3 parts；
Polyisocyanate 4～6 parts；
Isobutyl triethoxy silane 0.5～5 parts；
Phenolate lignin 5～10 parts；
Clear water 100～200 parts；
Preservative 3.9～7.8 parts.
Described preservative is the mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, and its part by weight is successively
For 4:5:2:2；Described activated carbon powder and bamboo charcoal powder all cross 300 mesh sieves.
Described activated carbon powder and bamboo charcoal powder all cross 300 mesh sieves.The specific surface area of activated carbon powder and bamboo charcoal powder is big, has super
Strong moisture effect, to absorb the moisture in air, it is to avoid timber main body have mouldy, the situation such as addle.Calcium pyroborate Stability Analysis of Structures,
In addition to there is disinsection efficiency, to domestomycetes, mycete and Coptotermes formosanus Shtrari. to having preferable resistance.Sodium benzoate is that a kind of wide spectrum resists micro-
Biological reagent, fine to mycete action effect.The mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate is as anticorrosion
Agent is added in composite urea formaldehyde resin adhesive of the present invention, improves the decay resistance of full Eucalyptus solid wooden compound floor, to wood
Rotten bacterium, mycete and Coptotermes formosanus Shtrari. have preferable resistance, extend the service life of cupboard board, do not affect the bonding strength of adhesive,
Adhesive is uniformly dispersed, can permeate to wood internal with glue, make product reach the function of long-effective corrosion, prior
It is, this most safe and efficient low toxicity of several materials.
The production method of above-mentioned anticorrosion composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, is heated to
80-100 DEG C, it is subsequently adding the hydrogenated rosin of parts by weight, isobutyl triethoxy silane and propanediol polyoxypropylene polyethylene
Ether, stirs 10 minutes to 30 minutes, adds the polyvinyl alcohol of parts by weight, phenolate lignin, be allowed to dissolve, add weight
The cyanurotriamide modified urea resin of number, Oxytarch and preservative, keep 80-90 DEG C of stirring reaction 2-5 hour, using
The polyisocyanate adding parts by weight in first 10-20 minute, mixing and stirring can use.
Cyanurotriamide modified urea resin of the present invention uses Guangxi Nanning Green Park Beilin Wood Industry Co., Ltd. to study
Cyanurotriamide modified urea resin, number of patent application: CN 201310353442.X；The applying date: 2013.08.14；Open (public
Accuse) number: CN 103408711A；Application (patent right) people: Guangxi Nanning Green Park Beilin Wood Industry Co., Ltd., this tripolycyanamide changes
Property Lauxite primary raw material be formaldehyde, tripolycyanamide and carbamide, use disposably add formaldehyde, several times add carbamide and
The method of tripolycyanamide, controls reaction rate, it is to avoid the generation of gelatin phenomenon, promotes the reaction completely of formaldehyde.Repeatedly add urine
Element, the carbamide every time added is the most different with the polymerization rate of formaldehyde and condition, after being divided into prepolymerization, being polymerized and be polymerized
Phase three phases, the amount that each stage adds carbamide is different, and reaction temperature is the most different, by this technique, it is to avoid
The generation of polymerization process gelatin phenomenon, the Lauxite narrow molecular weight distribution of gained, residual formaldehyde is low, is used for producing artificial
Plate, it is possible to decrease the burst size of methanal of wood-based plate.
Above-described anticorrosion composite urea formaldehyde resin adhesive, the function of each raw material is as follows:
Cyanurotriamide modified urea resin, for adhesive major ingredient.Urea-formaldehyde resin adhesive is a kind of thermosetting polymer adhesive.
Owing to its technique is simple, cheaper starting materials, the advantages such as adhesive strength is high, water white transparency, be widely used in plywood, particieboard,
The industries such as medium density fibre board (MDF), the production of artificial board and interior decoration, can buy in Market of Adhesives.Band ring molecule
Tripolycyanamide introduce in Lauxite, form tridimensional network, enclose many hydrophilic groups, change resin matrix knot
Structure, promotes resin crosslinks, thus has reached to improve the adhesion strength of resin, resistance to water and the purpose of ageing resistance, the most again
Avoid the shortcoming that simple melamine resin is relatively costly.
Oxytarch be starch in acid, alkali, neutral medium with oxidant effect, make starch oxidation and a kind of change of obtaining
Property starch.Oxytarch product colour is pure white, sticks with paste transparent, good film-forming property, and freeze-thaw resistance is good, is the thickening of low viscosity high concentration
Agent, is widely used in weaving, papermaking, food and Fine Chemical.Oxytarch, can be multiple with more aldehyde radical and carboxyl
During closing Lauxite polymer reaction, generate acetal and hemiacetal structure, thus improve the ageing-resistant performance of Lauxite；
Simultaneous oxidation starch can be combined with the free formaldehyde in cyanurotriamide modified urea resin, can reduce free formaldehyde content；Oxidation
On the other hand starch, can reduce cyanurotriamide modified urea resin addition as viscosity complexing agent again, reduce and produce
Cost.
Polyvinyl alcohol, for toughener so that the full Eucalyptus solid wooden compound floor intensity produced increases.
Hydrogenated rosin, for antioxidant so that the full Eucalyptus solid wooden compound floor produced is not easy to go bad, and extends the longevity
Life, anti-aging.
Propanediol polyoxypropylene polyvinylether, for defoamer, prevents adhesive from having bubble cavity to produce during using.
Polyisocyanate is firming agent, is characterized in having the highest wearability, and stable chemical nature, and intensity is high,
The crosslinked action itself having, can improve heat-resisting, water, plasticizer and the performance of solvent of adhesive.
Bridging agent, selects isobutyl triethoxy silane, and its one end can be combined with Lauxite carbonyl, and the other end can be with
The hydroxy combining of starch, strengthens its plank intensity.
Lignin molecular mass after phenolate is reacted reduces, and increases reaction active groups, can eliminate part free formaldehyde.
The preparation method of phenolate lignin is: is placed in separation container by the black liquid using alkaline boiling method slurrying, removes with screen cloth
Undissolved float, settles 4 hours after stirring, discharge lower floor silt, takes the upper strata black liquor vacuum drying containing alkali lignin
Machine carries out vacuum spray drying process, obtains powdery alkali lignin；Take powdery alkali lignin and put in acidifier, add
70wt% sulphuric acid, after stirring, is warming up to 140-160 DEG C, sulfonating reaction 1-2 hour；Evaporate through standard vertical-tubes
Device, circulation rate is 0.4m/s-0.5m/s, and controlling discharging moisture is 30wt%, precipitation, through filtering, being dried to water content
For 15wt%；By lignin: phenol weight ratio is 1:1 addition phenol, control temperature 85-95 DEG C, insulation reaction 1 hour,
Finally i.e. obtain phenolate lignin with 30wt% sodium hydroxide regulation pH to 6.5-7.0.
Sodium benzoate is mostly white particle, odorless or micro-strip Benzoinum abnormal smells from the patient, and taste is micro-sweet, has convergence；Soluble in water
(room temperature), pH, about 8, is acid preservative, without sterilization, bacteriostasis in alkaline medium；Its anticorrosion Optimal pH is 2.5-
4.0.Sodium benzoate is a kind of broad spectrum antimicrobial reagent, fine to mycete action effect.Sodium benzoate preservative is with it not
The molecule of dissociation is had an effect, and non-dissociated benzoic acid lipophile is strong, easily by cell membrane, enters intracellular, disturbs mycete
With the permeability of the microbial cell films such as antibacterial, block cell film, to amino acid whose absorption, enters intracellular benzoic acid molecule,
It is acidified intracellular storage alkali, the activity of the respiratory enzyme system in suppression microbial cell, thus plays antisepsis.
The preparation of described Oxytarch:
(1), select glass apparatus and assemble synthesizer:
JJ600 electronic balance；Digital display thermostat water bath；Digital display constant speed stirrer；There-necked flask；Electric heating constant-temperature blowing drying box；
NDJ-79 Rotary Viscosimeter.
(2) reagent chemicals:
Raw material: tapioca (moisture 13.8%)；
Reagent: hydrogen peroxide (30%), Copper hydrate, copper sulfate, sodium sulfite (being AR).
(3) preparation principle:
Starch is under oxidant effect, and the hydroxyl oxidable one-tenth carboxyl (-COOH) on glucose unit, it makes binding agent
Stability be improved significantly.Oxidation decreases the quantity of hydroxyl in starch molecule, makes molecular association be obstructed, thus subtracts
The weak binding ability of intermolecular hydrogen chain.Meanwhile, glucosides chain break, make macromolecules degradation, starch molecule amount reduces, thus increases
Dissolubility, mobility and caking property are added.In the presence of liquid caustic soda, the hydroxy combining not oxidized with starch, destroy part hydrogen
Key, makes declines between macromole, thus easy swelling gelatinizing, give its caking property.
Preparation process is as follows:
Weighing 200g tapioca in 1000mL there-necked flask, add water furnishing 18～the starch milk of 21 ° of B é, stirs, slowly
The slow sodium hydroxide solution dripping a certain amount of 5%～7% concentration.After water-bath rises to design temperature, add the copper sulfate of 0.01%.So
A certain amount of hydrogen peroxide of rear addition, after isothermal reaction certain time, adds 0.4g sodium sulfite, and stirring 10min terminates reaction.
Reaction terminate after, with in dilute hydrochloric acid and reacting liquid pH value be 5.5～6.0.Sucking filtration is dehydrated, washes clean, places 40-50 in baking oven
Dry at DEG C, pulverize, sieve and i.e. obtain product.The Oxytarch of above-mentioned use can produce with jumbo reactor.
Compared with prior art, the positive effect of the present invention is:
1, produce, by the inventive method, the full Eucalyptus solid wooden compound floor content of formaldehyde obtained low, there is preferable gluing
Can, there is the advantage that antiseptic property is good simultaneously, domestomycetes, mycete and Coptotermes formosanus Shtrari. are had preferably by the effective active composition in preservative
Resistance, extend the service life of full Eucalyptus solid wooden compound floor, do not affect the bonding strength of adhesive, in adhesive point
Dissipate uniformly, can permeate to wood internal with glue, make product reach the function of long-effective corrosion, it is often more important that, these several materials
The most safe and efficient low toxicity, also has certain insect protected performance.
2, production method of the present invention it is crucial that anticorrosion composite urea formaldehyde resin use cyanurotriamide modified urea resin conduct
The advantages such as adhesive major ingredient, has technique simple, cheaper starting materials, and adhesive strength is high, water white transparency, and low formaldehyde gas is released
Put, be a kind of environmental type resin, the resistance to water of Lauxite can be improved, and prevent glue-line from shrinking minimizing internal stress, improve
Ageing-resistant performance, increases glue solid content, viscosity and tack, extends working life.And to use hydrogenated rosin be antioxidant so that
The full Eucalyptus solid wooden compound floor produced is not easy to go bad, and extends the life-span, anti-aging；Employing polyvinyl alcohol is toughener,
The full Eucalyptus solid wooden compound floor intensity produced is increased；Use propanediol polyoxypropylene polyvinylether, for defoamer,
Prevent adhesive from during using, having bubble cavity to produce；Employing polyisocyanate is firming agent；Select isobutyl group triethoxy
Silane is as bridging agent, and its one end can be combined with Lauxite carbonyl, and the other end can strengthen its plank with the hydroxy combining of starch
Intensity；Containing a large amount of active groups in phenolate lignin, as formaldehyde catching agent, part free formaldehyde can be eliminated；Use oxygen
Change starch, as viscosity complexing agent, cyanurotriamide modified urea resin addition can be reduced, cost-effective；Activated carbon powder, bamboo
The mixture of powdered carbon, Calcium pyroborate and benzenpropanoic acid sodium adds in composite urea formaldehyde resin adhesive of the present invention as preservative, improves
The decay resistance of full Eucalyptus solid wooden compound floor, has preferable resistance to domestomycetes, mycete and Coptotermes formosanus Shtrari., extends full eucalyptus globulus
Wood solid wooden compound floor service life, do not affect the bonding strength of adhesive, be uniformly dispersed in adhesive, can with glue to
Wood internal permeates, and makes product reach the function of long-effective corrosion, it is often more important that, this most safe and efficient low toxicity of several materials, also
There is certain insect protected performance.
3, the veneer drying of the inventive method is a spotlight, is characterized in Eucalyptus veneer is positioned over rail mounted delta wood
Material veneer stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack, dries up with air stove
Moisture content to veneer is less than or equal to 10%；Understand from describe, be not apply external force in sheet material during Eucalyptus veneer drying
, simply veneer is simply dried as thermal source with air stove, exactly because and have employed such drying mode, solve
The sheet material that current plank processing enterprise uses drying machine dried single board to exist is easily deformed contraction, sheet material out-of-flatness and easily sticks up
The problem of bent cracking.
4, the rail mounted multilamellar wood single-plate stoving rack that the present invention uses, including support and spacing reticulum, multiple spacing nets
Seat stacking is hinged on support, and frame bottom is provided with pulley；The upper and lower surface of spacing reticulum is fitted with spacing net, spacing net
Seat bottom cushion block is installed, upper and lower two spacing reticulums are separated by cushion block, wood single-plate be placed on upper and lower two spacing reticulums it
Between, spacing net is the most spacing to wood single-plate, will not extrude wood single-plate, and hot blast passes through between spacing net and spacing net, to wood
Material veneer heats so that wood single-plate will not produce flexural deformation.The rail mounted multilamellar wood single-plate using the present invention dries
Quarrel the cost of the dry one cubic metre of wood single-plate low cost more than 30 yuan than one cubic metre of wood single-plate of drum-type drying, greatly
The drying cost of the big wood single-plate reduced.
5, in the present invention, use glue spreader that veneer is carried out gluing, it is ensured that glue-spread is uniform, improve gluing work effect
Rate, and by the most crisscross hierarchal arrangement of Eucalyptus veneer of coated for 8-10 layer glue, be bonded together, thus it is possible to vary timber
The original direction of extension of fiber, wet rise drying shrinkage time each layer check and balance, thus ensure that monoblock plank kenel is stable.Just this
Step, thoroughly improves the limitation of the moisture expansion and drying shrinkage of full Eucalyptus solid wooden compound floor.
6, in the present invention, use contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, it can be ensured that plate face
Flatness and fineness, thus improve the precision of product, carry for ensuing architectural surface rare tree veneer-overlaying of birch
For Reliable guarantee.
7, in the present invention, after Eucalyptus veneer gluing, employing is colded pressing for three times, once stands health preserving, three hot pressing, is once dissipated
The production technology of hot health preserving, discharges internal for the slab under the High Temperature High Pressure bigger internal stress existed lentamente, protects
Hold slab balance and stability, it is to avoid the situation that finished product is easily deformed because of the effect of expanding with heat and contract with cold after being heated occurs, and reduce finished product chance
Water, the moisture absorption play drum, the probability of deformation.
8, in the present invention, because floor base sheet material layers stick decoration birch veneer after again inside hot pressing, floor blank
Create again bigger internal stress, so floor blank needs to stand health preserving 15-20 days in the balance health-preserving storehouse of constant temperature and humidity, from
And ensure that floor quality is more stable.
9, in the present invention, the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, the surface lacquer painting of finished product full Eucalyptus solid wooden compound floor will have moist and be rich in toughness.
10, in the present invention, activated carbon powder and the fine and closely woven porous of bamboo charcoal powder, there is superpower moisture protection, air can be absorbed
In moisture, it is to avoid timber main body have mouldy, the phenomenon such as addle；Also have and decompose the function that abnormal flavour sterilizes except U.S., if absorbing
The harmful gas such as formaldehyde, benzene, dimethylbenzene, hydrogen in timber product.Calcium pyroborate Stability Analysis of Structures, in addition to having disinsection efficiency, to wood
Rotten bacterium, mycete and Coptotermes formosanus Shtrari. are to having preferable resistance.Sodium benzoate is a kind of broad spectrum antimicrobial reagent, imitates mycete effect
Fruit is very well.The mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate adds the present invention to as preservative and is combined urea aldehyde
In Resin adhesive, improve the decay resistance of full Eucalyptus solid wooden compound floor, domestomycetes, mycete and Coptotermes formosanus Shtrari. are had preferably
Resistance, extend the service life of cupboard board, do not affect the bonding strength of adhesive, be uniformly dispersed in adhesive, can be with
Glue permeates to wood internal, makes product reach the function of long-effective corrosion, it is often more important that, these several materials are the most safe and efficient low
Poison.
Detailed description of the invention
Embodiment 1
The method using anticorrosion composite urea formaldehyde resin to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is anticorrosion composite urea formaldehyde resin, single spreading amount
For 200g/m2；
Colding pressing for (4) three times: be 0.8MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.5MPa, and the temperature of hot pressing for the first time is 130 DEG C；The temperature of hot pressing for the second time is 125 DEG C, the temperature of hot pressing for the third time
Degree is 135 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat anticorrosion be combined urea aldehyde tree without wane, fissureless birch veneer
Fat is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.5MPa, and hot pressing temperature is 130 DEG C, and hot pressing time is
15min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Anticorrosion composite urea formaldehyde resin adhesive described in step (3) and step (9), by the raw material group of following parts by weight
Become:
Cyanurotriamide modified urea resin 50 parts；
Oxytarch 20 parts；
Polyvinyl alcohol 1 part；
Hydrogenated rosin 3 parts；
Propanediol polyoxypropylene polyvinylether 2 parts；
Polyisocyanate 4 parts；
Isobutyl triethoxy silane 0.5 part；
Phenolate lignin 5 parts；
100 parts of clear water；
Preservative 3.9 parts.
Described preservative is the mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, and its part by weight is successively
For 4:5:2:2；Wherein activated carbon powder 1.2 parts, bamboo charcoal powder 1.5 parts, Calcium pyroborate 0.6 part, sodium benzoate 0.6 part.Described activity
Powdered carbon and bamboo charcoal powder all cross 300 mesh sieves.
The production method of above-mentioned anticorrosion composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, is heated to
80 DEG C, it is subsequently adding the hydrogenated rosin of parts by weight, isobutyl triethoxy silane and propanediol polyoxypropylene polyvinylether, stirs
Mix 30 minutes, add the polyvinyl alcohol of parts by weight, phenolate lignin, be allowed to dissolve, add the melamine of parts by weight
Amine modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, keep 80 DEG C of stirring reactions 5 little
Time, the polyisocyanate adding parts by weight in 10-20 minute before use, mixing and stirring can use.
Embodiment 2
The method using anticorrosion composite urea formaldehyde resin to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is anticorrosion composite urea formaldehyde resin, single spreading amount
For 210g/m2；
Colding pressing for (4) three times: be 0.8MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.8MPa, and the temperature of hot pressing for the first time is 132 DEG C；The temperature of hot pressing for the second time is 128 DEG C, the temperature of hot pressing for the third time
Degree is 138 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat anticorrosion be combined urea aldehyde tree without wane, fissureless birch veneer
Fat is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.8MPa, and hot pressing temperature is 133 DEG C, and hot pressing time is 10
～15min, obtain floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Anticorrosion composite urea formaldehyde resin adhesive described in step (3) and step (9), by the raw material group of following parts by weight
Become:
Cyanurotriamide modified urea resin 80 parts；
Oxytarch 25 parts；
Polyvinyl alcohol 2 parts；
Hydrogenated rosin 6 parts；
Propanediol polyoxypropylene polyvinylether 2.5 parts；
Polyisocyanate 5 parts；
Isobutyl triethoxy silane 3 parts；
Phenolate lignin 8 parts；
150 parts of clear water；
Preservative 5.2 parts.
Described preservative is the mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, and its part by weight is successively
For 4:5:2:2；Wherein activated carbon powder 1.6 parts, bamboo charcoal powder 2.0 parts, Calcium pyroborate 0.8 part, sodium benzoate 0.8 part.Described activity
Powdered carbon and bamboo charcoal powder all cross 300 mesh sieves.
The production method of above-mentioned anticorrosion composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, is heated to
90 DEG C, it is subsequently adding the hydrogenated rosin of parts by weight, isobutyl triethoxy silane and propanediol polyoxypropylene polyvinylether, stirs
Mix 20 minutes, add the polyvinyl alcohol of parts by weight, phenolate lignin, be allowed to dissolve, add the melamine of parts by weight
Amine modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, keep 85 DEG C of stirring reactions 3 little
Time, the polyisocyanate adding parts by weight in 10-20 minute before use, mixing and stirring can use.
Embodiment 3
The method using anticorrosion composite urea formaldehyde resin to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is anticorrosion composite urea formaldehyde resin, single spreading amount
For 230g/m2；
Colding pressing for (4) three times: be 0.9MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 3.0MPa, and the temperature of hot pressing for the first time is 135 DEG C；The temperature of hot pressing for the second time is 130 DEG C, the temperature of hot pressing for the third time
It is 140 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat anticorrosion be combined urea aldehyde tree without wane, fissureless birch veneer
Fat is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 3.0MPa, and hot pressing temperature is 135 DEG C, and hot pressing time is
10min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Anticorrosion composite urea formaldehyde resin adhesive described in step (3) and step (9), by the raw material group of following parts by weight
Become:
Cyanurotriamide modified urea resin 100 parts；
Oxytarch 30 parts；
Polyvinyl alcohol 3 parts；
Hydrogenated rosin 8 parts；
Propanediol polyoxypropylene polyvinylether 3 parts；
Polyisocyanate 6 parts；
Isobutyl triethoxy silane 5 parts；
Phenolate lignin 10 parts；
200 parts of clear water；
Preservative 7.8 parts.
Described preservative is the mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, and its part by weight is successively
For 4:5:2:2；Wherein activated carbon powder 2.4 parts, bamboo charcoal powder 3.0 parts, Calcium pyroborate 1.2 parts, sodium benzoate 1.2 parts.Described activity
Powdered carbon and bamboo charcoal powder all cross 300 mesh sieves.
The production method of above-mentioned anticorrosion composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, is heated to
100 DEG C, it is subsequently adding the hydrogenated rosin of parts by weight, isobutyl triethoxy silane and propanediol polyoxypropylene polyvinylether,
Stir 10 minutes, add the polyvinyl alcohol of parts by weight, phenolate lignin, be allowed to dissolve, add the trimerization of parts by weight
Cyanamide modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, keep 90 DEG C of stirring reactions 2
Hour, the polyisocyanate adding parts by weight in 10-20 minute before use, mixing and stirring can use.
Comparative example 1
The method using Lauxite to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is that urea-formaldehyde resin adhesive is (purchased from the gloomy bonding of Zibo China
Agent company limited), single spreading amount is 200g/m2；
Colding pressing for (4) three times: be 0.8MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.5MPa, and the temperature of hot pressing for the first time is 130 DEG C；The temperature of hot pressing for the second time is 125 DEG C, the temperature of hot pressing for the third time
Degree is 135 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat urea-formaldehyde resin adhesive (purchase without wane, fissureless birch veneer
From Zibo Hua Sen binding agent company limited) it is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.5MPa, hot pressing
Temperature is 130 DEG C, and hot pressing time is 15min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Comparative example 2
The method using Lauxite to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is that urea-formaldehyde resin adhesive is (purchased from the gloomy bonding of Zibo China
Agent company limited), single spreading amount is 210g/m2；
Colding pressing for (4) three times: be 0.8MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.8MPa, and the temperature of hot pressing for the first time is 132 DEG C；The temperature of hot pressing for the second time is 128 DEG C, the temperature of hot pressing for the third time
Degree is 138 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat urea-formaldehyde resin adhesive (purchase without wane, fissureless birch veneer
From Zibo Hua Sen binding agent company limited) it is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.8MPa, hot pressing
Temperature is 133 DEG C, and hot pressing time is 10～15min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Comparative example 3
The method using Lauxite to produce full Eucalyptus solid wooden compound floor, comprises the following steps:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is that urea-formaldehyde resin adhesive is (purchased from the gloomy bonding of Zibo China
Agent company limited), single spreading amount is 230g/m2；
Colding pressing for (4) three times: be 0.9MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, each 10～
15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 3.0MPa, and the temperature of hot pressing for the first time is 135 DEG C；The temperature of hot pressing for the second time is 130 DEG C, the temperature of hot pressing for the third time
It is 140 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat urea-formaldehyde resin adhesive (purchase without wane, fissureless birch veneer
From Zibo Hua Sen binding agent company limited) it is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 3.0MPa, hot pressing
Temperature is 135 DEG C, and hot pressing time is 10min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
The step being dried Eucalyptus veneer with air stove described in step (2) is: be first positioned over by Eucalyptus veneer
Rail mounted multilamellar wood single-plate stoving rack, is then positioned over an airtight space by rail mounted multilamellar wood single-plate stoving rack,
The moisture content dried up to veneer with air stove is less than or equal to 10%.
Described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
According to GB/T15036.2-2001 " inspection of solid wooden floor board plate and test method " in embodiment and comparative example
Burst size of methanal and the bonding strength of products obtained therefrom are measured；Wood-based plate rise drum phenomenon mensuration use water-boiling method, i.e.
Wood-based plate is cut out as 80cm(length) × 30cm(width) specification, first boil in the water of 100 DEG C 3 hours, indeformable, do not ftracture,
Again 60-70 DEG C of baking, record wood-based plate plays the drum time used, and the time is the longest, illustrates that the quality of wood-based plate is the best, normal condition
Use down, be more difficult to drum.Wood-based plate is cut out as 80cm(length) × 30cm(width) specification, put into the low-temperature test of 25 DEG C of constant temperature
1h is placed in room, lowers the temperature to afterwards low-temperature test room, in 2 minutes near-10 DEG C, keeps-10 DEG C of 30min, afterwards low temperature survey
Examination room is brought rapidly up to 25 DEG C, checks the cracking situation of artificial flaggy and interlayer, and whether wood-based plate deforms, according to cracking
Deformation draws the anti-freezing property of wood-based plate.Prepared full Eucalyptus solid wooden compound floor is taken the size sample that size is identical respectively
Product are put into and are cultivated in the culture dish having equal number Coptotermes formosanus Shtrari., detect the survival number of Coptotermes formosanus Shtrari. in culture dish and count after cultivating 24 hours
Calculate the mortality rate of Coptotermes formosanus Shtrari..Each Product checking three times, data are averaged, and every testing result is as shown in the table:
Find out from upper table, in the production method of the present invention full Eucalyptus solid wood compoiste wood floor, during Eucalyptus veneer drying be
Not applying external force in sheet material, simply as thermal source, veneer being simply dried with air stove, exactly because and have employed this
The drying mode of sample, solve current plank processing enterprise use drying machine dried single board exist sheet material be easily deformed contraction,
The problem of sheet material out-of-flatness and easily warping and cracking.And after Eucalyptus veneer gluing use cold pressing for three times, once stand health preserving, three
Secondary hot pressing, once dispel the heat the production technology of health preserving, by slow for internal for the slab under the High Temperature High Pressure bigger internal stress existed
Discharge, keep slab balance and stability, it is to avoid finished product effect situation about being easily deformed of expanding with heat and contract with cold because being heated occurs, and
Reduce finished product chance water, the moisture absorption plays drum, the probability of deformation, it is also possible to improves the bonding strength of solid wooden compound floor, reduces first
Aldehyde burst size, protects living environment.
Finding out from upper table, the anticorrosion composite urea formaldehyde resin of the present invention produces full Eucalyptus solid wooden compound floor relative to commonly
The full Eucalyptus solid wooden compound floor prepared of urea-formaldehyde resin adhesive there is prominent advantage, be mainly manifested in: the present invention has
Preferably glue performance, has the advantage that antiseptic property is good simultaneously, the effective active composition in preservative to domestomycetes, mycete and
Coptotermes formosanus Shtrari. has preferable resistance, extends the service life of full Eucalyptus solid wooden compound floor, does not affect the bonding strength of adhesive,
Adhesive is uniformly dispersed, can permeate to wood internal with glue, make product reach the function of long-effective corrosion, prior
It is, this most safe and efficient low toxicity of several materials.
Veneer drying Application Example
1, Nanning wood industry company, original use manually utilizes sun hanger plate, is affected by weather, shines plate efficiency pole
Low；Receiving weather restriction to allow wood single-plate be dried not, the said firm have employed traditional drum-type wood single-plate drying device pair
Wood single-plate is dried, and drum-type wood single-plate drying device structure is complicated, and drive disk assembly is many, and maintenance efficiency is high, and power consumption is big,
The veneer dried out is easily deformed contraction and warping and cracking；In order to overcome above-mentioned shortcoming, the said firm uses the list of the present invention
Plate drying mode, technique is simple, low cost of manufacture, is dried the cost of one cubic metre of wood single-plate than drum-type drying one cubic metre
The low cost of wood single-plate more than 30 yuan, the drying cost of the wood single-plate being substantially reduced, its dry run is do not apply outside
Veneer, in sheet material, is simply simply dried as thermal source by power with air stove, exactly because and have employed such being dried
Mode, solves current plank processing enterprise and uses the sheet material of drying machine dried single board existence to be easily deformed contraction, sheet material injustice
The problem of whole and easy warping and cracking.
Claims (6)
1. use the method that anticorrosion composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor, it is characterised in that: include following step
Rapid:
(1) plank blade: use peeler that eucalyptus plate is peeled into the thin slice of 1.5-3 millimeters thick, obtain Eucalyptus veneer, and choose
Go out to carry small holes caused by worms, the defective sheet material that rotten, defect is excessive；
(2) veneer drying: be dried Eucalyptus veneer with air stove, controls the moisture content of veneer less than or equal to 10%；
(3) gluing: Eucalyptus veneer carried out gluing and according to wood grain texture by the Eucalyptus of coated for 8-10 layer glue with glue spreader
The crisscross hierarchal arrangement of veneer, is bonded together, and obtains Eucalyptus slab；Glue is anticorrosion composite urea formaldehyde resin, single spreading amount
It is 200～230g/m2；
Colding pressing for (4) three times: be 0.8～0.9MPa by Eucalyptus slab in unit pressure, temperature is under room temperature, colds pressing three times, every time
10～15min；
(5) health preserving is stood: the Eucalyptus slab carried out three times after colding pressing is stood health preserving 6～8h at room temperature；
(6) three hot pressing: utilize hot press to carry out the Eucalyptus slab standing health preserving hot-forming, altogether hot pressing three times, hot pressing
Pressure is 2.5～3.0MPa, and the temperature of hot pressing for the first time is 130～135 DEG C；The temperature of hot pressing for the second time is 125～130 DEG C,
The temperature of hot pressing for the third time is 135～140 DEG C, is then sent in balance storehouse quenched；
(7) heat radiation health preserving: the Eucalyptus slab gravity-flow ventilation after carrying out three hot pressing is cooled to room temperature, and the time is 3～4h；
(8) the fixed thick sanding of slab: utilize contact calibrating machine that face, the end of Eucalyptus slab are carried out fixed thick sanding, obtain substrate layer；
(9) base material top layer gluing: will without dying for the sake of honour, without rotten, coat anticorrosion be combined urea aldehyde tree without wane, fissureless birch veneer
Fat is attached to substrate layer；Entering hot press and carry out hot pressing, hot pressing pressure is 2.5～3.0MPa, and hot pressing temperature is 130～135 DEG C, heat
The pressure time is 10～15min, obtains floor blank；
(10) health preserving fluting: floor blank is stood in the balance health-preserving storehouse of constant temperature and humidity health preserving 15-20 days, then by fluting
Equipment is by the floor blank excision forming through health preserving；
(11) leaching paint dryness finalization: the floor blank ending groove is passed through flow coating equipment, through eight road priming paint, the showering of four road finish paints
After, sorting packaging, obtain commercially available full Eucalyptus solid wooden compound floor.
Employing anticorrosion composite urea formaldehyde resin the most according to claim 1 produces the method for full Eucalyptus solid wooden compound floor, its
It is characterised by: the step being dried Eucalyptus veneer with air stove described in step (2) is: first placed by Eucalyptus veneer
In rail mounted multilamellar wood single-plate stoving rack, then rail mounted multilamellar wood single-plate stoving rack is positioned over an airtight sky
Between, the moisture content dried up to veneer with air stove is less than or equal to 10%.
Employing anticorrosion composite urea formaldehyde resin the most according to claim 2 produces the method for full Eucalyptus solid wooden compound floor, its
Being characterised by: described rail mounted multilamellar wood single-plate stoving rack, including support and spacing reticulum, multiple spacing reticulum stackings are cut with scissors
Being connected on support, the upper and lower surface of spacing reticulum is fitted with spacing net, and spacing reticulum bottom is provided with cushion block, and cushion block will be up and down
Two spacing reticulums separate, and wood single-plate is placed between upper and lower two spacing reticulums, and frame bottom is provided with pulley.
Employing anticorrosion composite urea formaldehyde resin the most according to claim 1 produces the method for full Eucalyptus solid wooden compound floor, its
It is characterised by: the anticorrosion composite urea formaldehyde resin described in step (3) and step (9), is made up of the raw material of following parts by weight:
Cyanurotriamide modified urea resin 50～100 parts；
Oxytarch 20～30 parts；
Polyvinyl alcohol 1～3 parts；
Hydrogenated rosin 3～8 parts；
Propanediol polyoxypropylene polyvinylether 2～3 parts；
Polyisocyanate 4～6 parts；
Isobutyl triethoxy silane 0.5～5 parts；
Phenolate lignin 5～10 parts；
Clear water 100～200 parts；
Preservative 3.9～7.8 parts.
Employing anticorrosion composite urea formaldehyde resin the most according to claim 4 produces the method for full Eucalyptus solid wooden compound floor, its
Being characterised by: described preservative is the mixture of activated carbon powder, bamboo charcoal powder, Calcium pyroborate and sodium benzoate, its part by weight depends on
Secondary for 4:5:2:2；Described activated carbon powder and bamboo charcoal powder all cross 300 mesh sieves.
Employing anticorrosion composite urea formaldehyde resin the most according to claim 4 produces the method for full Eucalyptus solid wooden compound floor, its
It is characterised by: the production method of described anticorrosion composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, heating
To 80-100 DEG C, it is subsequently adding the poly-second of the hydrogenated rosin of parts by weight, isobutyl triethoxy silane and propanediol polyoxypropylene
Alkene ether, stirs 10 minutes to 30 minutes, adds the polyvinyl alcohol of parts by weight, phenolate lignin, be allowed to dissolve, and adds weight
The amount cyanurotriamide modified urea resin of number, Oxytarch and preservative, keep 80-90 DEG C of stirring reaction 2-5 hour, make
By the polyisocyanate of first 10-20 minute addition parts by weight, mixing and stirring can use.
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Application publication date: 20161221 |