CN106363760A - Method for producing particle board through anti-insect and anti-mold composite urea formaldehyde resin - Google Patents
Method for producing particle board through anti-insect and anti-mold composite urea formaldehyde resin Download PDFInfo
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- CN106363760A CN106363760A CN201610746071.5A CN201610746071A CN106363760A CN 106363760 A CN106363760 A CN 106363760A CN 201610746071 A CN201610746071 A CN 201610746071A CN 106363760 A CN106363760 A CN 106363760A
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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
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
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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
-
- 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
-
- 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
-
- 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
- C09J11/08—Macromolecular additives
-
- 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
- C09J161/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
Abstract
The invention discloses a method for producing a particle board through anti-insect and anti-mold composite urea formaldehyde resin. The method comprises the procedures like material preparation, drying, veneer removing and grit removing, mixing glue, and hot press molding. The key of the production method is that melamine modified urea formaldehyde resin is adopted as a main material of an adhesive; oxidized starch is added as a viscous complexing agent; polyvinyl alcohol is adopted as a flexibilizer; hydrogenated rosin is adopted as an antioxidant; polyisocyanate is adopted as a curing agent; and triethoxyisobutylsilane is adopted as a bridging agent. According to the method, the anti-insect and anti-mold composite urea formaldehyde resin is prepared through adopting phenolated lignin as a formaldehyde capture agent and adding an anti-insect and anti-mold agent, and the particle board produced through the anti-insect and anti-mold composite urea formaldehyde resin has the advantages that the residual amount of formaldehyde is low and the anti-insect and anti-mold effect is good, has a quite high inhibiting effect on breeding of aspergillus, trichoderma and penicillia, and has instantaneous killing force and a long-term prevention effect on board powder-post beetles.
Description
Technical field
The invention belongs to wood-based plate manufactures field, particularly one kind produces particieboard using Vermins-proof mildew-proof composite urea formaldehyde resin
Method.
Background technology
Particieboard is an important board kind in wood-based plate, and compared with other plate kinds, its investment of production is relatively fewer, energy consumption
Little, low cost, the requirement to raw materials quality is not also high, and three surplus things, fast growing wood, recovery waste and old wood and some non-wooden materials are all
Therefore can there is its unique advantage as the raw material of particieboard in the deficient Chinese development particieboard industry of timber resources.Plane
For intersecting the graininess of structure straggly inside card, the performance in each portion direction is essentially identical, and horizontal bearing capacity is good；Surface of chipboard
Smooth, texture is true to nature, and uniformly, thickness error is little, anti-pollution, ageing-resistant, attractive in appearance, can carry out various veneers for unit weight；Particieboard exists
In production process, glue consumption is less, and environmental protection coefficient is of a relatively high.Because particieboard volume is larger, use its Hepplewhite, relatively
For other sheet materials, also heavier.Because particieboard have so many a little, therefore its be widely used in Furniture manufacture, building, bag
The inside fitting of dress, vehicle and ship and household appliance shell making etc., also can make facing particieboard through secondary operations.But
It is because particieboard is wooden product, if keeping ventilation not in time it is easy to deform because of air humidity on rainy day,
Even have that mouldy, the situation such as addle, lead to indoor mould abnormal smells from the patient serious, and particieboard majority is to be glued by adhesive by Eucalyptus monolithic
Knot forms, and bow warping can be made to deform because producing expansive force difference after long-time moisture absorption.Therefore, improve the insect protected of Lauxite
Fungicidal properties, reduces residual formaldehyde, improves weather resistance, becomes the primary problem solving of particieboard industry development.
Retrieve below in relation to the patent producing particieboard aspect with Lauxite:
Denomination of invention: for the urea-formaldehyde resin adhesive and preparation method thereof of bagasse particieboard；Summary: the invention discloses a kind of use
Urea-formaldehyde resin adhesive in bagasse particieboard and preparation method thereof, the raw material including following parts by weight is made: formalin
3100-3300 weight portion；Urea liquid 1. 1000-1200 weight portion；Urea liquid 2. 450-550 weight portion；Urea liquid is 3.
500-600 weight portion and modified rubber latex 90-110 weight portion.Its preparation method is: is not dehydrated production work using alkali-Acid-Base
Skill, and the latex after silane coupler modified is added in the late phase reaction of synthesis Lauxite, further improve urea
The ageing-resistant performance of urea formaldehyde.0 below .1% is reached by the urea-formaldehyde glue free formaldehyde mass fraction of this technique productions, makes
Bagasse particieboard burst size of methanal is 20mg/100g, has reached the e2 level national standard of below 30mg/100g.
The adhesive that above-mentioned patent prepares does not have Vermins-proof mildew-proof effect, and its urea-formaldehyde resin adhesive simply will be through silane coupled
The modified latex of agent is added in the late phase reaction of synthesis Lauxite, reaches the purpose introducing si-o key so that final close
The urea-formaldehyde resin adhesive becoming can form si-o-si key during drying and forming-film, improve while top sizing is spent and increase
The mechanical strength of its latex film big, but it does not improve the Vermins-proof mildew-proof effect of urea-formaldehyde resin adhesive.
Content of the invention
For above-mentioned technological deficiency, the purpose of the present invention is a kind of using the production of Vermins-proof mildew-proof composite urea formaldehyde resin
The method of particieboard, produces, by the inventive method, the particieboard content of formaldehyde that obtains low, and the steady quality of plate it is not easy to
Damage, water-fast, Vermins-proof mildew-proof effect is good.
The key of production method of the present invention is to be adhesive major ingredient using cyanurotriamide modified urea resin, adds oxidation and forms 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 to add the insect protected that Vermins-proof mildew-proof agent is prepared from again anti-
Mould composite urea formaldehyde resin, this composite urea formaldehyde resin has that residual formaldehyde amount is low, the good advantage of Vermins-proof mildew-proof performance, Vermins-proof mildew-proof agent
In active component can be by glue scattering and permeating to veneer fibrous tissue, can not only prevent from producing inside wood-based plate is multiple
Aspergillosis, Trichoderma spp. and penicillium sp, and can quickly eliminate inside veneer because of a large amount of active polypides being produced using filler with to veneer
The interior worm's ovum without hatching carries out thalline interference so as to cannot hatch；So that the particieboard residual formaldehyde amount that production obtains is low,
Vermins-proof mildew-proof effect is good, has stronger inhibitory action to growing of aspergillosis, Trichoderma spp. and penicillium sp, moth-eaten to Chinese powder, and Japanese powder is moth-eaten, embraces
Power and long-acting preventive effect are knocked down in the killing that flat powder moth has moment.And in process of production, produced by strict control
During technological parameter it is ensured that produce particieboard quality.
For realizing the purpose of the present invention, the present invention adopts the following technical scheme that
The method producing particieboard using Vermins-proof mildew-proof composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive required by technique is delivered in glue mixer by glue workshop section, and wood shavings and Vermins-proof mildew-proof are combined
Urea-formaldehyde resin adhesive, under being sufficiently stirred for of watch core layer glue mixer, reaches the uniform effect mixing abundant applying glue, wood shavings particle
Account for the 85-90% of sheet material dry weight, Vermins-proof mildew-proof composite urea formaldehyde resin adhesive and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8～0.9mpa, time 5～8min；Finally carry out heat
Pressure, hot pressing pressure 2.5～3mpa, temperature is 200～210 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to
Quenched, prepared particieboard in balance storehouse.
Additive described in step 5) is any one in titanium dioxide, Pulvis Talci and white carbon.
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive described in step 5), is made up of the raw material of following parts by weight:
50～100 parts of cyanurotriamide modified urea resin；
20～30 parts of Oxytarch；
1～3 part of polyvinyl alcohol；
3～8 parts of hydrogenated rosin；
2～3 parts of propanediol polyoxypropylene polyvinylether；
4～6 parts of polyisocyanate；
0.5～5 part of isobutyl triethoxy silane；
5～10 parts of phenolate lignin；
100～200 parts of clear water；
2.1～4.9 parts of Vermins-proof mildew-proof agent.
Described Vermins-proof mildew-proof agent be activated carbon powder, the mixture of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, its part by weight according to
Secondary for 2:3:1:1.
300 mesh sieves all crossed by described activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder.Activated carbon powder and the ratio of bamboo charcoal powder
Surface area is big, has superpower moisture effect, with the moisture in absorption air, it is to avoid timber main body has that mouldy, the situation such as addle.
Main component garlicin in Bulbus Allii have sterilization, parasite killing, removing toxic substances, anti-corrosion the effects such as；And the main component capsaicin in Fructus Capsici
To the action of contace poison of insect substantially, after insect contact with capsaicin i.e. performance benumb (inertia, do not take food), paralyse finally dead
The phenomenon died.Activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder are added to composite urea formaldehyde resin of the present invention as Vermins-proof mildew-proof agent
In adhesive, vermins-proof effect persistently, does not affect the bonding strength of adhesive, is uniformly dispersed in adhesive, can be with glue to wood
Material internal penetration, make product reach long-acting insect protected function it is often more important that, all safe and efficient low toxicity of this several material, have
Certain antiseptic property.
The production method of above-mentioned Vermins-proof mildew-proof composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, plus
Heat arrives 80-100 DEG C, and the hydrogenated rosin, isobutyl triethoxy silane and the propanediol polyoxypropylene that are subsequently adding parts by weight gather
Vinyl Ether, stirs 10 minutes to 30 minutes, adds polyvinyl alcohol, the phenolate lignin of parts by weight, be allowed to dissolve, add
The cyanurotriamide modified urea resin of parts by weight, Oxytarch and Vermins-proof mildew-proof agent, keep 80-90 DEG C of stirring reaction 2-5 little
When, 10-20 minute adds the polyisocyanate of parts by weight before use, and mixing and stirring can use.
Cyanurotriamide modified urea resin of the present invention adopts 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, add formaldehyde using disposable, add several times 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 adding every time is all different with the polymerization rate of formaldehyde and condition, after being divided into prepolymerization, polymerization and polymerization
Phase three phases, the amount of each stage addition carbamide is different, and reaction temperature is also 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, artificial for producing
Plate, it is possible to decrease the burst size of methanal of wood-based plate.
Above-described Vermins-proof mildew-proof composite urea formaldehyde resin adhesive, the function of each raw material is as follows:
Cyanurotriamide modified urea resin, is adhesive major ingredient.Urea-formaldehyde resin adhesive is a kind of thermosetting polymer adhesive.
Due to its process is simple, raw material is cheap, and adhesive strength is high, the advantages of 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 be introduced in Lauxite, formed tridimensional network, enclose many hydrophilic groups, change resin matrix knot
Structure, promotes resin crosslinks, thus having reached the purpose of the adhesion strength, resistance to water and ageing resistance improving resin, again simultaneously
Avoid the relatively costly shortcoming of simple melamine resin.
Oxytarch is that starch is acted on oxidant in acid, alkali, neutral medium, makes a kind of obtained from starch oxidation change
Property starch.Oxytarch product colour is pure white, pastes 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 carries more aldehyde radical and carboxyl, can be multiple
During closing Lauxite polymer reaction, generate acetal and hemiacetal structure, thus improving 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, is toughener so that the strength of shaving boards produced increases.
Hydrogenated rosin, is antioxidant so that the particieboard produced does not allow perishable, prolongation life-span, anti-aging.
Propanediol polyoxypropylene polyvinylether, is defoamer, prevents adhesive from having bubble cavity to produce during using.
Polyisocyanate is firming agent, is characterized in thering is very high wearability, and stable chemical nature, and intensity is high,
The crosslinked action itself having, can improve heat-resisting, water, the plasticizer of adhesive and the performance of solvent.
Bridging agent, from isobutyl triethoxy silane, 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 reaction reduces, and increases reaction active groups, can eliminate part free formaldehyde.
The preparation method of phenolate lignin is: will be placed in separation container using the black liquid of alkaline boiling method slurrying, is removed with screen cloth
Undissolved float, settles 4 hours after stirring, discharge lower floor silt, takes upper strata to contain the black liquor vacuum drying of alkali lignin
Machine carries out vacuum spray drying process, obtains powdery alkali lignin；Take powdery alkali lignin to put in acidifier, add
70wt% sulphuric acid, after stirring, is warming up to 140-160 DEG C, sulfonating reaction 1-2 hour；Through standard vertical-tubes evaporation
Device, circulation rate is 0.4m/s-0.5m/s, and control discharging moisture is 30wt%, precipitation, through filtering, being dried to water content
For 15wt%；By lignin: phenol weight than for 1:1 add phenol, control temperature 85-95 DEG C, insulation reaction 1 hour,
Finally adjust ph to 6.5-7.0 with 30wt% sodium hydroxide and obtain final product phenolate lignin.
Bulbus Allii, [Classification system] allium sativum l., [another name] Bulbus Allii, Bulbus Allii, DUSUAN, giant garlic.[function cures mainly]
Removing toxic substances parasite killing, reducing swelling and alleviating pain, antidiarrheal dysentery relieving, control lung, anthelmintic, in addition with warming the spleen warming the stomach.Control swollen ulcer drug, white bald tinea skin ulcer, dysentery
Have loose bowels, pulmonary tuberculosis pertussis, ascarid pinworm, eating accumulation, coldness and pain in the epigastrium, oedema turgor.The complete intracellular presence of Bulbus Allii is a kind of no
Color, odorless and water miscible spice precursor alliin, are contacted with a kind of allinase after cell damage, are transformed into the product of sulfur-bearing
Thing garlicin.Garlicin has strong antibacterial and anti-inflammation functions, all has suppression to multiple coccuses, bacillus, funguses and virus etc. and kills
The effect of going out, is antibacterial action one kind the strongest in the current natural plants finding.In addition, garlicin is opened in cultivation aquaculture
Send out and utilize, in feedstuff, garlicin can be used as antibacterial, agrochemical.Garlicin have sterilization, parasite killing, removing toxic substances, anti-corrosion the effects such as.
Fructus Capsici, [Classification system] capsicum annuum, [another name] spicy, caynne pepper, Capsicum frutescens L．Var．1o m Bail, Red sea green pepper, capsicum annum fasciculatum；
Capsaicin is that it is a kind of pungent Rhizoma et radix valerianae amide alkaloid of extreme mainly in peppery material in pepper fruit, its chemistry knot
Structure is entitled: [(4- hydroxy 3-methoxybenzene base)-methyl] -8- methyl-(anti-) -6- nonenamide.Capsaicin is to waxy brood cell
Bacillus and bacillus subtilis significantly inhibit effect, but invalid to staphylococcus aureuses and escherichia coli.Its branch, leaf have no antibacterial
Tubercule bacillus are only had very slight suppression by effect.10-20% Fructus Capsici decocts chaste tree to be had functions that to kill Cimex bedbug.Capsaicin is to insect
Action of contace poison substantially, insect contact with capsaicin after i.e. performance paralysis (inertia, do not take food), the showing of finally death of paralysing
As；It also has stomach poison function to insect, after pests, then suppresses Chlorogenic Acid, impact is digested and assimilated, disturbed breathing generation
Thank, cause insect to be led to physiology pathological changes because normal physiological activity is obstructed, so that growth promoter is suppressed and dead.
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 oxidant effect under, the hydroxyl on glucose unit oxidable become carboxyl (- cooh), it makes binding agent
Stability be improved significantly.Oxidation decreases the quantity of hydroxyl in starch molecule, so that molecular association is obstructed, thus subtracting
The weak binding ability of intermolecular hydrogen chain.Meanwhile, glucosides chain break, makes macromolecules degradation, and starch molecule amount reduces, thus increasing
Dissolubility, mobility and caking property are added.In the presence of liquid caustic soda, with not oxidized hydroxy combining in starch, destroy part hydrogen
Key, makes declines between macromole, thus easily swelling gelatinizing, give its caking property.
Preparation process is as follows:
Weigh 200g tapioca in 1000ml there-necked flask, add water and be tuned into the starch milk of 18～21 ° of b é, stir, slowly
The sodium hydroxide solution of slow a certain amount of 5%～7% concentration of Deca.After water-bath rises to design temperature, add 0.01% copper sulfate.So
After add a certain amount of hydrogen peroxide, after isothermal reaction certain time, add 0.4g sodium sulfite, stir 10min terminating reaction.
After reaction terminates, it is 5.5～6.0 with dilute hydrochloric acid neutralization reaction liquid ph value.Sucking filtration is dehydrated, washes clean, places 40-50 in baking oven
Dry at DEG C, pulverize, screening obtains final product product.The Oxytarch of above-mentioned use can be produced with jumbo reactor.
Compared with prior art, the positive effect of the present invention is:
1st, the present invention is using unavailable waste material --- the i.e. corner of Eucalyptus during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate
Material hot pressing produces particieboard, because Eucalyptus is a kind of fast growing wood, is peeled into plate after felling, after being dried again with adhesive by plate
It is bonded into this multi-layer sheet and be also referred to as solid wood board, can be multiple as the office appliance of high-quality, timber floor, furniture and building-supporting plate
Purposes, but multiple-plate production process produces in a large number either in cut-out, rotary-cut or adhesion process, all can produce many broken
Material, these multi-layer sheet factories, particle is burnt only as fuel, causes the great wasting of resources, and the present invention is by leftover pieces
Use, be a kind of make full use of resource, save timber direction.
2nd, the particieboard content of formaldehyde being obtained by the inventive method production is low, has preferable glue performance, simultaneously high
Under temperature, high humidity environment, quality stability is good, meets water, making moist has been difficult drum, deformation.
3rd, the key of production method of the present invention be adhesive therein be Vermins-proof mildew-proof composite urea formaldehyde resin, be using adopt
Cyanurotriamide modified urea resin, as adhesive major ingredient, has process is simple, and raw material is cheap, and adhesive strength is high, water white transparency
The advantages of, and the release of low formaldehyde gases, it is a kind of environmental type resin, the resistance to water that can improve Lauxite is (thus increase
Plus the waterproof and dampproof performance of particieboard), and prevent glue-line contraction minimizing internal stress, raising ageing-resistant performance, increase glue solid content,
Viscosity and tack, extend working life.And using hydrogenated rosin for antioxidant so that mutability do not allowed by the particieboard produced
Matter, extends the life-span, anti-aging；Using polyvinyl alcohol for toughener so that the strength of shaving boards produced increases；Using the third two
Alcohol polyoxypropylene polyvinylether, is defoamer, prevents adhesive from having bubble cavity to produce during using；Using polyisocyanate
For firming agent；From isobutyl triethoxy silane as bridging agent, its one end can be combined with Lauxite carbonyl, other end energy
With the hydroxy combining of starch, strengthen its plank intensity；A large amount of active groups are contained in phenolate lignin, as formaldehyde catching agent,
Part free formaldehyde can be eliminated；Using Oxytarch, as viscosity complexing agent, cyanurotriamide modified urea resin can be reduced
Addition, cost-effective；Activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder are added to the present invention as Vermins-proof mildew-proof agent and are combined
In urea-formaldehyde resin adhesive, vermins-proof effect persistently, does not affect the bonding strength of adhesive, is uniformly dispersed in adhesive, can be with
Glue permeates to wood internal, makes product reach the function of long-acting insect protected.
4th, in Vermins-proof mildew-proof composite urea formaldehyde resin adhesive of the present invention, activated carbon powder and the fine and closely woven porous of bamboo charcoal powder, have
Superpower moisture protection, can moisture in absorption air, it is to avoid timber main body has that mouldy, the phenomenon such as addle；Also there is decomposition different
Taste removes the function of U.S. sterilization, if absorbing the harmful gass such as formaldehyde, benzene, dimethylbenzene, hydrogen in timber product.Main in Bulbus Allii
Composition garlicin have sterilization, parasite killing, removing toxic substances, anti-corrosion the effects such as；And the main component capsaicin in Fructus Capsici is tagged to insect
Effect substantially, insect contact with capsaicin after i.e. performance paralysis (inertia, do not take food), the phenomenon of finally death of paralysing.Live
Property powdered carbon, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder be added in composite urea formaldehyde resin adhesive of the present invention as Vermins-proof mildew-proof agent, prevent
Worm effect persistently, does not affect the bonding strength of adhesive, is uniformly dispersed in adhesive, can permeate to wood internal with glue, make
Product reach long-acting insect protected function it is often more important that, all safe and efficient low toxicity of this several material, there is certain antiseptic property.
5th, in Vermins-proof mildew-proof composite urea formaldehyde resin adhesive of the present invention, the active component in Vermins-proof mildew-proof agent can pass through glue
Liquid scattering and permeating, to veneer fibrous tissue, can not only prevent multiple aspergillosis, Trichoderma spp. and the penicillium sp producing inside wood-based plate, and
Can quickly eliminate and carry out without the worm's ovum of hatching because of a large amount of active polypides being produced using filler with veneer inside veneer
Thalline disturbs so as to cannot hatch.The Vermins-proof mildew-proof agent of the present invention belongs to the strong osmosis type of interior suction, to the aspergillosis of wood-based plate, Trichoderma spp. and
Growing of penicillium sp has stronger inhibitory action, moth-eaten to Chinese powder, and Japanese powder is moth-eaten, embrace the killing that flat powder moth has moment knock down power and
Long-acting preventive effect.
Specific embodiment
Embodiment 1
The method producing particieboard using Vermins-proof mildew-proof composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive required by technique is delivered in glue mixer by glue workshop section, and wood shavings and Vermins-proof mildew-proof are combined
Urea-formaldehyde resin adhesive, under being sufficiently stirred for of watch core layer glue mixer, reaches the uniform effect mixing abundant applying glue, wood shavings particle
Account for the 85-90% of sheet material dry weight, Vermins-proof mildew-proof composite urea formaldehyde resin adhesive and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8mpa, time 8min；Finally carry out hot pressing, hot pressing pressure
Power 2.5mpa, temperature is 210 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, is obtained
Particieboard.
Additive described in step 5) is titanium dioxide.
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive described in step 5), is made up of the raw material of following parts by weight:
50 parts of cyanurotriamide modified urea resin；
20 parts of Oxytarch；
1 part of polyvinyl alcohol；
3 parts of hydrogenated rosin；
2 parts of propanediol polyoxypropylene polyvinylether；
4 parts of polyisocyanate；
0.5 part of isobutyl triethoxy silane；
5 parts of phenolate lignin；
100 parts of clear water；
2.1 parts of Vermins-proof mildew-proof agent.
Described Vermins-proof mildew-proof agent be activated carbon powder, the mixture of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, its part by weight according to
Secondary for 2:3:1:1, wherein activated carbon powder 0.6 weight portion, bamboo charcoal powder 0.9 weight portion, Bulbus Allii powder and Fructus Capsici powder are 0.3 weight
Part.300 mesh sieves all crossed by described activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder.
The production method of above-mentioned Vermins-proof mildew-proof composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, plus
Heat, to 80 DEG C, is subsequently adding hydrogenated rosin, isobutyl triethoxy silane and the propanediol polyoxypropylene polyethylene of parts by weight
Ether, stirs 30 minutes, adds polyvinyl alcohol, the phenolate lignin of parts by weight, be allowed to dissolve, add the three of parts by weight
Poly cyanamid modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, keep 80 DEG C of stirring reactions 5
Hour, the polyisocyanate adding parts by weight in 20 minutes before use, mixing and stirring can use.
Embodiment 2
The method producing particieboard using Vermins-proof mildew-proof composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive required by technique is delivered in glue mixer by glue workshop section, and wood shavings and Vermins-proof mildew-proof are combined
Urea-formaldehyde resin adhesive, under being sufficiently stirred for of watch core layer glue mixer, reaches the uniform effect mixing abundant applying glue, wood shavings particle
Account for the 85-90% of sheet material dry weight, Vermins-proof mildew-proof composite urea formaldehyde resin adhesive and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8mpa, time 8min；Finally carry out hot pressing, hot pressing pressure
2.8mpa, temperature is 205 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, plane is obtained
Card.
Additive described in step 5) is Pulvis Talci.
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive described in step 5), is made up of the raw material of following parts by weight:
80 parts of cyanurotriamide modified urea resin；
25 parts of Oxytarch；
2 parts of polyvinyl alcohol；
6 parts of hydrogenated rosin；
2.5 parts of propanediol polyoxypropylene polyvinylether；
5 parts of polyisocyanate；
3 parts of isobutyl triethoxy silane；
7 parts of phenolate lignin；
150 parts of clear water；
3.5 parts of Vermins-proof mildew-proof agent.
Described Vermins-proof mildew-proof agent be activated carbon powder, the mixture of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, its part by weight according to
Secondary for 2:3:1:1, wherein 1 part of activated carbon powder, 1.5 parts of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder are 0.5 part.Described activated carbon
300 mesh sieves all crossed by powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder.
The production method of above-mentioned Vermins-proof mildew-proof composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, plus
Heat, to 90 DEG C, is subsequently adding hydrogenated rosin, isobutyl triethoxy silane and the propanediol polyoxypropylene polyethylene of parts by weight
Ether, stirs 20 minutes, adds polyvinyl alcohol, the phenolate lignin of parts by weight, be allowed to dissolve, add the three of parts by weight
Poly cyanamid modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, keep 85 DEG C of stirring reactions 4
Hour, the polyisocyanate adding parts by weight in 15 minutes before use, mixing and stirring can use.
Embodiment 3
The method producing particieboard using Vermins-proof mildew-proof composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive required by technique is delivered in glue mixer by glue workshop section, and wood shavings and Vermins-proof mildew-proof are combined
Urea-formaldehyde resin adhesive, under being sufficiently stirred for of watch core layer glue mixer, reaches the uniform effect mixing abundant applying glue, wood shavings particle
Account for the 85-90% of sheet material dry weight, Vermins-proof mildew-proof composite urea formaldehyde resin adhesive and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.9mpa, time 5min；Finally carry out hot pressing, hot pressing pressure
Power 3mpa, temperature is 200 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, plane is obtained
Card.
Additive described in step 5) is white carbon.
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive described in step 5), is made up of the raw material of following parts by weight:
100 parts of cyanurotriamide modified urea resin；
30 parts of Oxytarch；
3 parts of polyvinyl alcohol；
8 parts of hydrogenated rosin；
3 parts of propanediol polyoxypropylene polyvinylether；
6 parts of polyisocyanate；
5 parts of isobutyl triethoxy silane；
10 parts of phenolate lignin；
200 parts of clear water；
4.9 parts of Vermins-proof mildew-proof agent.
Described Vermins-proof mildew-proof agent be activated carbon powder, the mixture of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, its part by weight according to
Secondary for 2:3:1:1, wherein activated carbon powder 1.4 weight portion, bamboo charcoal powder 2.1 weight portion, Bulbus Allii powder and Fructus Capsici powder are 0.7 weight
Part.300 mesh sieves all crossed by described activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder.
The production method of above-mentioned Vermins-proof mildew-proof composite urea formaldehyde resin: first the clear water of parts by weight is put in reactor, plus
Heat, to 100 DEG C, is subsequently adding hydrogenated rosin, isobutyl triethoxy silane and the propanediol polyoxypropylene polyethylene of parts by weight
Ether, stirs 10 minutes, adds polyvinyl alcohol, the phenolate lignin of parts by weight, be allowed to dissolve, add the three of parts by weight
Poly cyanamid modified urea-formaldehyde resin, Oxytarch, activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, keep 90 DEG C of stirring reactions 2
Hour, 10-20 minute adds the polyisocyanate of parts by weight before use, and mixing and stirring can use.
Comparative example 1
The method producing particieboard using composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) required by technique is delivered to and is mixed by glue workshop section
In glue machine, wood shavings and adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) are in watch core layer glue mixing
Under being sufficiently stirred for of machine, reach the uniform effect mixing abundant applying glue, wood shavings particle accounts for the 85-90% of sheet material dry weight, adhesive
(for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8mpa, time 8min；Finally carry out hot pressing, hot pressing pressure
Power 2.5mpa, temperature is 210 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, is obtained
Particieboard.
Additive described in step 5) is titanium dioxide.
Comparative example 2
The method producing particieboard using composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) required by technique is delivered to and is mixed by glue workshop section
In glue machine, wood shavings and adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) are in watch core layer glue mixing
Under being sufficiently stirred for of machine, reach the uniform effect mixing abundant applying glue, wood shavings particle accounts for the 85-90% of sheet material dry weight, adhesive
(for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8mpa, time 8min；Finally carry out hot pressing, hot pressing pressure
2.8mpa, temperature is 205 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, plane is obtained
Card.
Additive described in step 5) is Pulvis Talci.
Comparative example 3
The method producing particieboard using composite urea formaldehyde resin, comprises the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) required by technique is delivered to and is mixed by glue workshop section
In glue machine, wood shavings and adhesive (for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) are in watch core layer glue mixing
Under being sufficiently stirred for of machine, reach the uniform effect mixing abundant applying glue, wood shavings particle accounts for the 85-90% of sheet material dry weight, adhesive
(for urea-formaldehyde resin adhesive, purchased from Zibo Hua Sen binding agent company limited) and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.9mpa, time 5min；Finally carry out hot pressing, hot pressing pressure
Power 3mpa, temperature is 200 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to quenched in balance storehouse, plane is obtained
Card.
Additive described in step 5) is white carbon.
According to gb/t15036.2-2001 " inspection of solid wooden floor board plate and test method " in embodiment and comparative example
The burst size of methanal of products obtained therefrom and bonding strength are measured.Temperature be 15 DEG C, in the environment of relative humidity >=85%, note
Record its mouldy time and mould varying index, additionally, the particieboard being obtained is taken size identical sample sizes to put into culture respectively
Have in the culture dish of equal number Coptotermes formosanus Shtrari., the survival number of Coptotermes formosanus Shtrari. calculate the dead of Coptotermes formosanus Shtrari. in detection culture dish after culture 24 hours
Die rate.Each Product checking three times, data is averaged, and every testing result is as shown in the table:
Find out from upper table, during producing particieboard by the method for the present invention, it can be seen from the table, the insect protected of the present invention is prevented
The particieboard that mould composite urea formaldehyde resin production particieboard is prepared with respect to urea-formaldehyde resin adhesive has the advantages that prominent, main table
Present: the present invention has preferable glue performance and relatively low burst size of methanal, have the advantages that Vermins-proof mildew-proof effect is good simultaneously,
There is stronger inhibitory action to growing of aspergillosis, Trichoderma spp. and penicillium sp, power and long-acting is knocked down in the killing having moment to plank powder moth
Preventive effect, there is preferable application and popularization value.
Claims (5)
1. adopt Vermins-proof mildew-proof composite urea formaldehyde resin produce particieboard method it is characterised in that: comprise the steps:
1) unavailable waste material during multilamellar Eucalyptus plate processed after rotary-cut Eucalyptus plate is sent with transporter after simple screening
Carry out wood shavings in chipper, then deliver in wet wood shavings feed bin through transporter and carry out transition storage；The water content percentage of wet wood shavings
Weight should be maintained at less than 20%；
2) wet wood shavings are delivered in roller drier through transporter and are dried, and the water content percent by weight making wood shavings is below 10%；
3) by dried wood shavings with isolating veneer；Separate metal and sandstone；
4) pass through screening through dry wood shavings and sort, the dry wood shavings of watch core layer below 2 centimetres for the length are sent through transporter
Toward the storage of watch core layer dry wood shavings material transitional storehouse, the wood shavings more than 2 centimetres are sent to watch core layer dry wood shavings material mistake after smashing again
Cross storage to deposit；
5) the qualified dry wood shavings of watch core layer transport through transporter, deliver in glue mixer, adjust simultaneously and mix after the metering of chip metering feed bin
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive required by technique is delivered in glue mixer by glue workshop section, and wood shavings and Vermins-proof mildew-proof are combined
Urea-formaldehyde resin adhesive, under being sufficiently stirred for of watch core layer glue mixer, reaches the uniform effect mixing abundant applying glue, wood shavings particle
Account for the 85-90% of sheet material dry weight, Vermins-proof mildew-proof composite urea formaldehyde resin adhesive and additive account for 10-15%；
6) wood shavings after applying glue deliver to mechanical classification spreading machine through belt conveyer, mat formation uniformly by mechanical classification unit of mating formation
Smooth particle mat, determines particle mat size specification according to hot press size；
7) particle mat is carried out precompressed, the pressure of precompressed is 0.8～0.9mpa, time 5～8min；Finally carry out heat
Pressure, hot pressing pressure 2.5～3mpa, temperature is 200～210 DEG C, and hot pressing time is every millimeter of thickness of slab 80s～85s, then delivers to
Quenched, prepared particieboard in balance storehouse.
2. employing Vermins-proof mildew-proof composite urea formaldehyde resin according to claim 1 produce particieboard method it is characterised in that:
Additive described in step 5) is any one in titanium dioxide, Pulvis Talci and white carbon.
3. employing Vermins-proof mildew-proof composite urea formaldehyde resin according to claim 1 produce particieboard method it is characterised in that:
Vermins-proof mildew-proof composite urea formaldehyde resin adhesive described in step 5), is made up of the raw material of following parts by weight:
50～100 parts of cyanurotriamide modified urea resin；
20～30 parts of Oxytarch；
1～3 part of polyvinyl alcohol；
3～8 parts of hydrogenated rosin；
2～3 parts of propanediol polyoxypropylene polyvinylether；
4～6 parts of polyisocyanate；
0.5～5 part of isobutyl triethoxy silane；
5～10 parts of phenolate lignin；
100～200 parts of clear water；
2.1～4.9 parts of Vermins-proof mildew-proof agent.
4. employing Vermins-proof mildew-proof composite urea formaldehyde resin according to claim 3 produce particieboard method it is characterised in that:
Described Vermins-proof mildew-proof agent is activated carbon powder, the mixture of bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder, and its part by weight is followed successively by 2:3:
1:1；300 mesh sieves all crossed by described activated carbon powder, bamboo charcoal powder, Bulbus Allii powder and Fructus Capsici powder.
5. employing Vermins-proof mildew-proof composite urea formaldehyde resin according to claim 3 produce particieboard method it is characterised in that:
The production method of described Vermins-proof mildew-proof 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 hydrogenated rosin, isobutyl triethoxy silane and the propanediol polyoxypropylene polyvinylether of parts by weight,
Stirring 10 minutes to 30 minutes, adds polyvinyl alcohol, the phenolate lignin of parts by weight, is allowed to dissolve, adds weight portion
The cyanurotriamide modified urea resin of number, Oxytarch and Vermins-proof mildew-proof agent, keep 80-90 DEG C of stirring reaction 2-5 hour, make
Add the polyisocyanate of parts by weight with front 10-20 minute, mixing and stirring can use.
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| CN106244065A (en) * | 2016-08-29 | 2016-12-21 | 南宁市创锦胶合板有限责任公司 | Vermins-proof mildew-proof composite urea formaldehyde resin and production method thereof |
| CN109721991A (en) * | 2018-12-17 | 2019-05-07 | 会通新材料股份有限公司 | A kind of ageing-resistant PC/ABS alloy plastic and preparation method thereof |
| CN110103310A (en) * | 2019-06-12 | 2019-08-09 | 李珂 | The production method of the mould proof particieboard of aroma type |
| CN110126056A (en) * | 2019-04-29 | 2019-08-16 | 李珂 | A kind of manufacture craft of fireproof medium-density fiberboard |
| CN110281340A (en) * | 2019-06-12 | 2019-09-27 | 李珂 | A kind of preparation method of antibacterial and mouldproof particieboard |
| CN111775262A (en) * | 2020-06-17 | 2020-10-16 | 江苏金牌厨柜有限公司 | Low-odor shaving board and preparation method thereof |
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| CN109721991B (en) * | 2018-12-17 | 2020-10-02 | 会通新材料股份有限公司 | Anti-aging PC/ABS alloy plastic and preparation method thereof |
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| CN110103310A (en) * | 2019-06-12 | 2019-08-09 | 李珂 | The production method of the mould proof particieboard of aroma type |
| CN110281340A (en) * | 2019-06-12 | 2019-09-27 | 李珂 | A kind of preparation method of antibacterial and mouldproof particieboard |
| CN111775262A (en) * | 2020-06-17 | 2020-10-16 | 江苏金牌厨柜有限公司 | Low-odor shaving board and preparation method thereof |
| CN111775262B (en) * | 2020-06-17 | 2022-08-16 | 江苏金牌厨柜有限公司 | Low-odor shaving board and preparation method thereof |
| CN113172721A (en) * | 2021-05-07 | 2021-07-27 | 辽宁尼尔科达环保材料有限公司 | Bamboo charcoal solid wood particle board |
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