CN101479084A - Method and system for edge-coating wood substrates - Google Patents
Method and system for edge-coating wood substrates Download PDFInfo
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- CN101479084A CN101479084A CNA2007800244470A CN200780024447A CN101479084A CN 101479084 A CN101479084 A CN 101479084A CN A2007800244470 A CNA2007800244470 A CN A2007800244470A CN 200780024447 A CN200780024447 A CN 200780024447A CN 101479084 A CN101479084 A CN 101479084A
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Abstract
Engineered wood product edges are protected by applying a two part edge sealing composition to at least one edge surface. The two part edge sealing composition can improve holdout, hide, and water resistance. An edge sealing system and substrates coated with the sealing system are provided.
Description
The cross reference of related application
This application requires to enjoy the priority of No. the 60/817th, 577, U.S. Provisional Application of submitting on June 28th, 2006 and the U.S. Provisional Application series number of submitting on May 10th, 2,007 60/917,260, and the disclosure of these two applications is incorporated into way of reference at this.
Technical field
The present invention relates to be used to make method such as the engineered wood product of oriented wood chipboard (OSB) sheet material with improved resistance to swelling and product appearance.
Background
Engineered wood product such as oriented wood chipboard, fiberboard and laminated veneer lumber (LVL) is widely used in residential housing and commercial building, and has won the great kindness of handling the market of (materials handling) and upholstered furniture manufacturing such as raw material.These products can obtain in a variety of forms, as oriented strand board panels, medium density fibre board (MDF) (MDF), laminated veneer lumber section product and analog.
Engineered wood product is formed by small pieces of wood and hot setting adhesive manufacturing usually.Oriented strand board panels is made by hot setting adhesive with to intersect directed layer arranged rectangular shape wooden shavings (woodstrands).These are commonly referred to engineering structure sheet material and have the purposes that comprises the wall plate, shingle nail (wall sheathing) and the floor system that are used for residential housing.Manufacture process makes sheet material manufacturer to increase novel features such as slip-resistant texture to the sheet material that is designed for wall plate, or super-huge sheet material and metric system sheet material are provided.
Being exposed to water can make the engineered wood product such as OSB sheet material suffer irreversible thickness swell.Usually viewed worst swelling behavior is on the edge of sheet material.The engineered wood lumber tend in swell to bigger degree on the edge of intracardiac exposure.For example, the 720mil of manufacturing (0.720 inch, 1.829cm) the OSB thin plate of thickness in fact can swell to above 1000mil (1 inch, edge thickness value 2.54cm).After drying, these thin plates can not be returned to its initial thickness and can be dried to the swelling edge thickness of about 900mil on the contrary.
The edge swell problem there are some available solutions.The dimensional stability of attempting to improve thin plate such as most of manufacturers of the engineered wood product of OSB thin plate by whole four edges that will be administered to the OSB thin plate such as the sealing compositions of lacquer formulations (paint-formulation).Usually, sealing material (sealer) is dried to hydrophobic film, and hydrophobic film is attached to the OSB thin plate and suppresses in the edge that water is absorbed into thin plate.Thereby when thin plate was exposed to water, edge sealant (edge sealant) can help to reduce the degree of the edge swell that thin plate experiences.
Edge sealant is administered to the engineered wood product such as the OSB thin plate usually during fabrication.After making, it is general immediately the liquid airproof agent formulation being administered to thin plate.Usually, after being administered to thin plate, preparation is rapidly dry and need not to use heating or ventilation equipment.The application of sealant is considered to industry standard, and it provides aesthetic values for common market purpose and provides performance advantage to help protecting water-sensitive not to be subjected to the influence of moisture and rain in the process in residential housing stage.
Most of sealant preparations are to a certain degree to be colored and to be applied, and the engineered wood product assembly is firm, uniform, attractive outward appearance so that give.After sealing material was applied to the edge of engineered wood product and is dried, it should reduce the thickness swell that takes place usually when being exposed to water as fruit product.Thereby the sealing material should be dried to form and be attached to the film of woodwork and relative resilient so that film can be expanded and stretch when the woodwork swelling.
Existence is to improving the protection engineered wood product, especially may being exposed to the needs of the method at the substrate surface of natural environment (for example water in being transported to client's process) and edge.
Summary of the invention
The invention provides a kind of method that is used to protect the edge of engineered wood product.This method comprises the step that two parts edge sealing compositions is administered at least one edge of base material (goods), and two parts edge sealing compositions has the first of containing coagulating agent and contains the second portion of moisture edge sealing compositions.In one embodiment, first and second portion can be administered to base material continuously.This method provides when being exposed to water, the improved resistance to swelling of edges of engineered wood products and the improvement aspect durability and dimensional stability.The present invention can also provide impermeability (holdout) preferably and be provided at more uniform outward appearance on the engineered wood product surfaces of inconsistent and porous.This method can provide tack-free (tack-free) and inviscid film.
In another embodiment, aloft (in flight) mixes first and second portion before contact substrate, or mixes first and second portion when contact substrate immediately aloft.With before base material contacts, the mixing of two parts system allows to reduce the amount of common needed edge sealing compositions.This method can provide tack-free and inviscid film.
In another embodiment, the invention provides the edge seal system that is used for engineered wood substrates, wherein sealing system comprises two parts edge sealing compositions at the edge that is used to be coated with engineered wood product.Edge seal system comprises the first with coagulating agent and has the second portion of moisture edge sealing compositions.Edge seal system can be applied and provide tack-free and inviscid film in a manner described.
In another embodiment, before contact substrate, two parts edge seal system of using in the air mix mode can increase efficient and strengthen the performance of edge sealing compositions.Two parts edge seal system can provide tack-free and inviscid film.
In another embodiment, the invention provides goods, wherein these goods are by the engineered wood product manufacturing and have two parts edge seal system at least one edge that is applied to base material.Two parts edge seal system comprises the first of containing coagulating agent and has the second portion of moisture edge sealing compositions.Edge seal system comprises one or more coating compositions at least one edge that is applied to goods.
General introduction above the present invention does not expect to describe each disclosed embodiment of the present invention or each embodiment.Require from specification, accompanying drawing and accessory rights, other features of the present invention, purpose and advantage will be tangible.Exemplary embodiment is more specifically for example understood in following description.In some places of whole application, the tabulation by embodiment provides guiding, and embodiment can be used in various combinations.In each case, the tabulation of being stated only should not be interpreted as unique tabulation as the representativeness group.
The details of one or more embodiments of the present invention has been proposed in accompanying drawing below and the description.Require from specification, accompanying drawing and accessory rights, other features of the present invention, purpose and advantage will be tangible.
Accompanying drawing is described
Fig. 1 has explained when before coating composition, uses when handling according to pretreatment compositions of the present invention the improvement of the edge swell of 23/32 inch OSB thin plate of edge coating.
Fig. 2 has explained when before coating composition, uses when handling according to pretreatment compositions of the present invention the improvement of the edge swell of 7/16 inch OSB thin plate of edge coating.
Fig. 3 has explained when before coating composition, uses when handling according to pretreatment compositions of the present invention the improvement of the edge swell of 7/16 inch OSB thin plate of edge coating.
Fig. 4 has shown " baffle plate (Apron) ", and it is the hydrophobicity coating composition that is administered to proximity assay sheet material periphery test edge surface on every side.
Fig. 5 has shown in the edge swell test, has been placed on the test panels in the large-scale edge impregnation groove.
Describe in detail
Term " preferably " and " preferably " refer to can provide in some cases embodiment of the present invention of some benefit. Yet in identical or other situations, other embodiments also can be preferred. And, one or more preferred embodiments are described in detail in detail and do not mean that other embodiments are disabled, and do not expect other embodiments are got rid of outside scope of the present invention.
Term " one (a) ", " one (an) ", " this (the) ", " at least one " and " one or more " are used interchangeably. Thereby, as, the coating composition that comprises " one " amine can be interpreted as meaning coating composition and comprise " one or more " amine.
Term " latex polymer resins ", " latex resin ", " latex emulsion " or " latex " refer to dispersion and the interchangeably use of polymer beads in water. Latex polymer resins generally includes one or more dispersants for generation of the dispersion of the polymer particle in the water or emulsion (such as, surfactant).
The digital scope of describing with end points comprise all numerals of being included in this scope (as, 1 to 5 comprises 1,1.5,2,2.75,3,3.80,4,5 etc.).
The invention provides the method for the protection of the edge of engineered wood product; wherein the method comprises at least one edge that two parts edge-coating composition is administered to base material, and wherein first comprises that coagulating agent and second portion comprise moisture edge seal composition. In another embodiment, first can comprise filler.
The present invention also provides the edge seal system that is used for such as the base material of engineered wood product. Sealing system preferably includes the first with coagulating agent and has the second portion of moisture edge seal composition. Sealing system comprises one or more layers two parts edge seal composition at least one edge that is applied to base material. When using more than one deck, each coating composition (layer) can be identical or different. Disclosed sealing system is particularly suitable for being coated with the edge such as the engineered wood substrates of OSB.
Although do not wish to be bound by theory, the first of two parts sealing system can be absorbed into the performance that strengthens the edge seal composition in the wood fibre or strengthen solidifying of edge seal composition on the substrate surface by retardance edge seal composition, and is minimum with the degree that helps coating composition is infiltrated through in the base material. Minimum by the degree that coating composition is infiltrated through in the porous wood fibre, obtained more continuous dry film, this provides the covering power (hide) of more uniform outward appearance and enhancing. When using at the edge such as the engineered wood substrates of OSB thin plate, observed preferably edge resistance to swelling.
In one embodiment, the first of composition comprises coagulating agent or flocculant.Term " coagulating agent (coagulating agent) ", " coagulating agent (coagulant) " or " coagulating agent (coagulationagent) ", " flocculant (flocculating agent) ", " flocculant (flocculant) " or " flocculant (flocculation agent) " use interchangeably, and comprise and can be used for binding molecule or dispersed particles to solidify or to form the material of flocculate.The example of coagulating agent includes but not limited to, sulfate, chloride, phosphate, carbonate (magnesium sulfate, aluminum sulfate, alum, ferric sulfate, calcium sulfate, ferrous sulfate, the positive iron of sulfuric acid, zinc sulfate, aluminium chloride, Al (OH) Cl2, magnesium chloride, iron chloride, calcium chloride, stannous chloride, stannic chloride, zinc chloride, frerrous chloride, ferric trichloride, zinc carbonate ammonium, aluminium carbonate, aluminum phosphate, trbasic zinc phosphate, ferrous phosphate, ester is such as phosphate and analog; Acid is such as sulfuric acid, hydrochloric acid, phosphoric acid, acetate, citric acid, p-methyl benzenesulfonic acid (PTSA) and analog; Poly-quaternary amine (polyquaternary amine), alkylamine-chloropropylene oxide, polyacrylamide etc.The exemplary commercial congealed prod of these reagent is MARFLOC
TM5242, MARFLOC 2150, MILFLOC V-27, ALUM, TRAMFLOC 860-899, TRAMFLOC 100, TRAMFLOC 29, TRAMFLOC 540-599, TRAMFLOC 540-560, CRODAZOLINE " O ", ZELEC " UN ", ARQUAD T-50 and analog.The preferred group of coagulating agent comprises the coagulating agent that contains magnesium sulfate, aluminum sulfate, alum, aluminium chloride, magnesium chloride, calcium sulfate, calcium chloride or its mixture.Most preferred coagulating agent is an aluminum sulfate.
The amount of the coagulating agent in the first of two parts edge sealing compositions can be based on the gross weight of each component in two parts sealing compositions, by weight from about 1% to about 60%, preferably by weight from about 2% to about 35%, and more preferably by weight from about 2% to about 10%.
In another embodiment, the first of sealing compositions preferably also comprises filler.Filler can and solidify the back before curing and expand composition or reduce the composition cost, and the feature of expectation perhaps is provided for composition.The nonrestrictive example of filler comprises, as clay, bead, calcium carbonate, talcum, silica, organic filler and analog.
The edge sealing compositions for example can comprise, the aqueous dispersion of water, one or more waxes and moisture polymer resin.Polymer resin can comprise latex resin.The nonrestrictive example of coating composition is at United States Patent (USP) the 6th, 608, and 131 and 4,897, be disclosed in No. 291.Be used to be coated with nonrestrictive example as the moisture coating composition of the commerce at the edge of the base material of OSB and comprise ULTRA SEALTM or EDGE SEAL from ValsparCorporation
TMThe CBS that obtains from Willamette ValleyCompany
TMOr WIL-SEAL
TMThe composite plate sealant.
The edge sealing compositions can comprise wax emulsion and polymer resin.Exemplary wax emulsion comprises the gross weight based on the first of edge sealing compositions, and about by weight 20% wax solid is about 90% wax solid extremely by weight.Preferably, composition has about by weight 40% wax solid to about 80% wax solid by weight.More preferably, composition has about by weight 60% wax solid to about 80% wax solid by weight.
Polymer resin in the edge sealing compositions is substantially free of reactive thiazolinyl.The olefinic monomer of the formation polymer resin when at least 95% is reacted (residue is no more than 5% unreacted monomer), preferred at least 97% olefinic monomer is reacted (residue is no more than 3% unreacted monomer), and when more preferably at least 99% olefinic monomer was reacted (residue is no more than 1% unreacted monomer), polymer resin was substantially free of reactive thiazolinyl.
Exemplary latex polymer resins comprises polymer, polymer-modified, the polyester of oil of polyurethane, polyamide, chloridized polyolefin, acrylic resin, vinyl compound and composition thereof or copolymer.The nonrestrictive example of latex resin comprises vinylite, as acrylic resin, SBR styrene butadiene rubbers resin, halo ethylene resin (vinyl halide resin), acetate resin (acetate resin) and analog or its mixture.Latex polymer can use one or more olefinic monomers, prepares by chain growth polymerization.
Can use disclosed method to come substrates coated or goods to comprise engineered wood substrates with the edge that can be exposed to natural environment.Term " engineered wood product " is often referred to by product or base material such as any wooden parts preparation of thin plate, fragment, thin slice, fiber, wood shavings (as, rectangle wooden shavings), sawdust and analog.Described parts combine through adhesive commonly used usually.The nonrestrictive example of engineered wood product comprises oriented wood chipboard (OSB), fiberboard, the laminated veneer lumber such as glued board, door face board (doorskin) and analog.
Term " fiberboard " refers to the class engineered wood product made by wood fibre.Usually, fiberboard is a kind of construction material, and it is made of wood chip that combines or string and is compressed into stiff sheet.The type of the fiberboard of the order that increases by density comprises particle board, medium density fibre board (MDF) and hardboard, is sometimes referred to as high density fiberboard.Fiberboard is used as the synonym of particle board sometimes.Yet particle board is commonly referred to low density fiberboard.Fiberboard, especially medium density fibre board (MDF) are used for furniture industry in large quantities.For visible parts, wooden thin slice can be glued on the fiberboard to give the outward appearance of its traditional timber.
Use one or more edge surfaces of two parts edge seal system coated substrate.Sealing system comprises the first with coagulating agent and has the second portion of moisture edge sealing compositions.Sealing system can be applied in one or more layers.
Two parts edge sealing compositions can provide improved covering power and impermeability.Term " covering power " refers to that coating composition covers equably or the ability of any variation of the color of the coating surface of painted and covering base material.Sealing system with " well " covering power will require thinner coating to be provided as acceptable uniform outer appearance on the product base material usually.Term " impermeability " refers to that coating stops that excessive penetration goes into the ability in the institute lip-deep hole of substrates coated.Having good impermeable coating system will not need a large amount of coating compositions to be provided as acceptable uniform outer appearance on the product base material.Disclosed method can be reduced to the good covering power and the amount of the common needed edge of impermeability sealing compositions of obtaining.
Disclosed edge coating process and sealing system can have improved, as lower volatile organic content (VOC).Preferred edge coating system is based on the gross weight of two parts edge sealing compositions, has VOC less than about 5%, is more preferably less than about 2% VOC and most preferably less than about 0.5% VOC.
Can use a kind of or surpass a kind of edge coating composition the edge sealing compositions is used (ground floor and the second layer with different edge sealing compositions that for example, have a kind of edge sealing compositions) as single coating or multilayer.The concrete application of selected edge sealing compositions and application order can easily be determined by preparation or the those of skill in the art that use this composition.The exemplary description of these water base coating systems has been described above.Therefore, base material can two parts edge sealing compositions prepares or can use two parts edge sealing compositions with multilayer by using with single application (layer).Preferably with about solid of 5% to 65% by weight,, and most preferably use the edge sealing compositions with about solid of 35% to 50% by weight more preferably with about solid of 20% to 55% by weight.The edge sealing compositions preferably contain based on the coating system gross weight less than 5% volatile organic matter, be more preferably less than about 2% VOC and most preferably less than 0.5% VOC.
Two parts edge sealing compositions is preferably used by many application technologies known in the art, include but not limited to, brushing, brush coater (brush coater), direct roller coating machine, contrary roll coater, cover the machine of being coated with (flood coater), vacuum coater, curtain coater or various spraying technology.Exemplary spraying technology comprises, for example two spray guns, twin-jet nozzles, have the single spray gun and the analog of a plurality of nozzles.Employing can the two-part independent spreader of individual application (as, two parts do not mix in spreader) use two parts or can use two parts simultaneously as independent spray gun by independent injection apparatus.Separately the nonrestrictive example of spreader is included in Application No. 6,264, disclosed Binks Mach1PCX multicomponent air painter, spray gun or analog in 113,5,639,027,5,400,971.Each of multiple technologies all provides the one group of distinctive Pros and Cons that depends on substrate profile, form and tolerable application efficiency.
Film thickness can be controlled by application rate.The build (DFT) of the edge sealing compositions on the engineered wood substrates can be for example, about 1mil is to about 10mil (0.0025cm to 0.025cm), more preferably from about 2mil is to about 8mil (0.0051cm to 0.0203cm), and 2mil extremely in the scope of about 6mil (0.0051cm to 0.015cm) most preferably from about.
The exemplary wet of two parts edge sealing compositions on the engineered wood substrates is for example, and about 2mil is to about 20mil, and more preferably from about 4mil is to about 15mil, and 4mil extremely in the scope of about 8mil most preferably from about.
Preferably use at least one edge of disclosed sealing system coated substrate.More preferably, four of base material of the present invention edges are all applied.In addition, finish paint can be applied directly to disclosed sealing system.
The exemplary optional pigment that is used for disclosed edge sealing compositions comprises, as titanium dioxide, carbon black, dim, iron oxide black, iron oxide red, iron oxide yellow, iron oxide brown (red and yellow oxide and the mixture of black), phthalocyanine green, phthalocyanine blue, organic red (organic red) (as naphthol reds, quinacridone is red and toluidine red (toulidine red)), quinacridone magenta, quinacridone violet, DNA orange (DNAorange) or organic yellow (organic yellow) (as everbright fast yellow).This composition can also comprise gloss control additive or commercially available fluorescent whitening agent, as the UVITEX OB from Ciba-Geigy.
The edge sealing compositions can also comprise filler.Exemplary optional filler and the inert component that is used for disclosed coating composition comprises, as clay, bead, calcium carbonate, talcum, silica, organic filler and analog.
Disclosed edge sealing compositions can also comprise other components, when these components are stored, handle or use or during in other stages or stage subsequently, changed the performance of composition.Extra optional component or the additive that is used for the edge sealing compositions comprises surfactant (surfaceactive agent) (surfactant (surfactant)), pigment, colorant, dyestuff, filler, precipitating inhibitor, UV absorbers, fluorescent whitening agent, thickener, heat stabilizer, levelling agent, anticratering agent, curing indicator, plasticizer, antimicrobial, mould inhibitor, surfactant, dispersant, defoamer and analog.Can adopt flatting agent, infringement and wearing and tearing additive and other similar performance to strengthen additive with performance upgrade that makes cured coating and coating composition effectively or the amount that otherwise changes the performance of cured coating and coating composition by needed.The performance characteristic of the expectation of coating comprises chemical resistance, wearability, hardness, gloss, reflectivity, outward appearance or these combination of features and other similar features.The nonrestrictive example of the exemplary additives of using with disclosed edge sealing compositions is described in people's such as Koleske Paint and CoatingIndustry (paint and coatings industry), April, 2003, the 12-86 pages or leaves.
To the present invention be described by following non-restrictive example.
Embodiment
Embodiment 1: general edge swell process of the test
By using sharp saw cutter that the OSB thin plate is cut into 12 " long and 4 " wide test panels prepares test panels.Before using edge sealing, tie up test panels in heaps together and place the stove 2 hours of 150 ℉.
Each coating material (preliminary treatment and coating composition) is loaded in the independent Kremlin airless spray pump of fluid pressure with 600psi.For each coating material, about 5 inches single 1229 nozzle heads (Spray Systems Co.) with 0.033 current limiter (a.033 restrictor) are being installed from the edge surface of OSB sample.The 49.7g/l alum that is used in the water prepares preprocessing solution and before using coating composition, uses preprocessing solution by the edge of spraying bundle.The coating composition of being used is made up of the solid by the weight 40% of anion water-contained wax dispenser and cinnamic acrylic ester latex polymer.
From stove, take out sample and spray " heap " at the airless spraying conveyor apparatus.Use preliminary treatment and immediately use coating composition.Allow edge drying or sclerosis at least 24 hours at ambient temperature.
After the drying, separation test sheet material and by using " baffle plate " protection edge, " baffle plate " is for anti-sealing permeates non-testing surface is administered to 1 inch hydrophobicity coating composition band of the test edge surface around the contiguous whole periphery with brush.Before the beginning immersion test, test panels is kept balance 3 days (referring to Fig. 4) then.
Use is installed to weigh-bridge and the Mitutoyo digital indicator that is fixed on the test rack has obtained thickness measurements.From 1.5 inches beginnings of test panels end, carry out thickness measure with 1 inch interval.This provides about nine (9) individual measured values for each sheet material.Measured value is averaged so that provide one-tenth-value thickness 1/10 for each sample.
In case finish initial measurement, all samples placed large-scale edge impregnation groove.(referring to Fig. 5).2 inches thick interior decoration foam components (from the product #000853440 of Hancock Fabrics) are placed under the interior test panels of soak bath.By estimate the phase during, refill that bath maintains polyethylene at least once and with the running water in each groove every day or the surface of the foam that is equal under 1/8 " height.
Take out test panels and measured after at interval and be used for following the trail of and estimating purpose at 72 hours.By deducting average final thickness, determine the percent swell of each test group then divided by average original thickness with average original thickness.Deduct the average swelling value of test group by uncoated OSB swelling value, determine the efficient percentage of each test group then divided by uncoated OSB swelling value.The result is illustrated among Fig. 1,2 and 3.
Embodiment 2 uses the edge sealing on 23/32OSB
The a series of test panels (3 groups, 12 every group) that prepare 23/32 thickness according to the description among the embodiment 1.First group of test panels is uncoated.Second group of test panels only is coated with the edge sealing compositions of 8mil wet-film thickness (8wet mils).The 3rd group of test panels is coated with the pretreatment compositions of 2mil wet-film thickness, is the edge sealing compositions of 5mil wet-film thickness then.After drying, baffle plate is administered near the testing surface place.Measure the thickness of test panels.After the measurement, test panels was placed dipping tank 72 hours.Behind experimental period, measure test panels once more.The result is illustrated among Fig. 1 and the table 1.
Table 1 23/32 " the edge swell evaluation of OSB
| The edge sealing is used | Preliminary treatment is used | Sample size (n) | Average % edge swell 72 hours | Efficient percentage |
| Uncoated control group | Do not have | 12 | 15.3 | - |
| 8.0mil wet-film thickness | Do not have | 12 | 12.6 | 17.70％ |
| 5.0mil wet-film thickness | 2.0mil wet-film thickness | 12 | 5.6 | 63.40％ |
Embodiment 3 uses the edge sealing on 7/16OSB
The a series of test panels (3 groups, 12 every group) that prepare 7/16 thickness according to the description among the embodiment 1.First group of test panels is uncoated.Second group of test panels only is coated with the edge sealing compositions of 8mil wet-film thickness.The 3rd group of test panels is coated with the pretreatment compositions of 2mil wet-film thickness, is the edge sealing compositions of 5mil wet-film thickness then.After drying, baffle plate is administered near the testing surface place.Measure the thickness of test panels.After the measurement, test panels was placed dipping tank 72 hours.Behind experimental period, measure test panels once more.The result is illustrated among Fig. 2 and the table 2.
Table 2 7/16 " the edge swell evaluation of OSB
| The edge sealing is used | Preliminary treatment is used | Sample size (n) | Average % edge swell 72 hours | Efficient percentage |
| Uncoated control group | Do not have | 12 | 21.2 | - |
| 8.0mil wet-film thickness | Do not have | 12 | 12.7 | 40.10％ |
| 5.0mil wet-film thickness | 2.0mil wet-film thickness | 12 | 4.1 | 80.70％ |
Embodiment 4 uses the edge sealing on 7/16OSB
The a series of test panels (7 groups, 12 every group) that prepare 7/16 thickness according to the description among the embodiment 1.First group of test panels is uncoated.Second group of test panels only is coated with the edge sealing compositions of 6mil wet-film thickness.The 3rd group of test panels is coated with the pretreatment compositions of 1.5mil wet-film thickness, is the edge sealing compositions of 6mil wet-film thickness then.The 4th group of test panels is coated with the pretreatment compositions of 2mil wet-film thickness, is the edge sealing compositions of 6mil wet-film thickness then.The 5th group of test panels only is coated with the edge sealing compositions of 8mil wet-film thickness.The 6th group of test panels is coated with the pretreatment compositions of 1.5mil wet-film thickness, is the edge sealing compositions of 8mil wet-film thickness then.The 7th group of test panels is coated with the pretreatment compositions of 2mil wet-film thickness, is the edge sealing compositions of 8mil wet-film thickness then.After drying, baffle plate is administered near the testing surface place.Measure the thickness of test panels.After the measurement, test panels was placed dipping tank 72 hours.Behind experimental period, measure test panels once more.The result is illustrated among Fig. 3 and the table 3.
Table 3 7/16 " the edge swell evaluation of OSB
| The edge sealing is used | Preliminary treatment is used | Sample size (n) | Average % edge swell 72 hours | Efficient percentage |
| Uncoated control group | Do not have | 12-January | 21.7 | - |
| 6.0mil wet-film thickness | Do not have | 12-February | 15.1 | 30.40％ |
| 6.0mil wet-film thickness | 1.5mil wet-film thickness | 12-March | 7.4 | 65.90％ |
| 6.0mil wet-film thickness | 2.0mil wet-film thickness | 12-April | 5.9 | 72.80％ |
| 8.0mil wet-film thickness | Do not have | 12-May | 12.1 | 44.20％ |
| 8.0mil wet-film thickness | 1.5mil wet-film thickness | 12-June | 6.1 | 71.90％ |
| 8.0mil wet-film thickness | 2.0mil wet-film thickness | 12-July | 5 | 77.00％ |
Follow disclosed process among the embodiment 3, prepare a series of test panels (7 groups, 12 every group) of 7/16 thickness according to the description among the embodiment 1.First group of test panels is uncoated.Second group of test panels only is coated with the edge sealing compositions of 8mil wet-film thickness.The 3rd group of test panels is coated with the pretreatment compositions of 1.0mil wet-film thickness, is the edge sealing compositions of 6.5mil wet-film thickness then.After drying, baffle plate is administered near the testing surface place.Measure the thickness of test panels.After the measurement, test panels was placed dipping tank 72 hours.Behind experimental period, measure test panels once more.The result represents with form in table 4.
Table 4 uses 7/16 " the edge swell evaluation of OSB of WillametteValley CBS sealing material
| The sealing of CBS edge is used | Preliminary treatment is used | Sample size (n) | Average % edge swell 72 hours | Efficient percentage |
| Uncoated control group | Do not have | 8 | 11.4 | - |
| 8.0mil wet-film thickness | Do not have | 8 | 6.5 | 42.90％ |
| 6.5mil wet-film thickness | 1.0mil wet-film thickness | 8 | 3.9 | 65.70％ |
Embodiment 6 use Willamette Valley CBS sealing material 23/32 " the edge swell evaluation of OSB
Follow disclosed process among the embodiment 3, prepare a series of test panels (7 groups, 12 every group) of 23/32 thickness according to the description among the embodiment 1.First group of test panels is uncoated.Second group of test panels only is coated with the edge sealing compositions of 8mil wet-film thickness.The 3rd group of test panels is coated with the pretreatment compositions of 1.0mil wet-film thickness, is the edge sealing compositions of 6.5mil wet-film thickness then.After drying, baffle plate is administered near the testing surface place.Measure the thickness of test panels.After the measurement, test panels was placed dipping tank 72 hours.Behind experimental period, measure test panels once more.The result represents with form in table 5.
Table 5 use Willamette Valley CBS sealing material 23/32 " the edge swell evaluation of OSB
| The sealing of CBS edge is used | Preliminary treatment is used | Sample size (n) | Average % edge swell 72 hours | Efficient percentage |
| Uncoated control group | Do not have | 8 | 21.7 | - |
| 8.0mil wet-film thickness | Do not have | 8 | 13.1 | 39.60％ |
| 6.5mil wet-film thickness | 1.0mil wet-film thickness | 8 | 7.9 | 63.50％ |
Embodiment 7-10: coating and general edge swell process of the test
Preparation contains the aluminum sulfate solution (part A) of 20wt% solid as coagulating agent.Preparation comprises the water-based edge sealing compositions (part B) of styrene acrylic resin (20wt%), silicon face additive (0.5wt%), wax emulsion (50wt%), defoamer (0.2wt%), colorant (2wt%), pigment (5wt%), fungicide (0.1wt%), viscosity-control additive (1.8wt%), water (20.4wt%) and is used to test.
By the OSB thin plate is cut into 12 " long and 4 " wide sheet material prepares test panels.Before using edge seal system, tie up test panels in heaps together and place the stove 2 hours of 150 ℉.
With each part cargo shipment of sealant system (part A, coagulating agent and part B, edge sealing compositions) in improved Binks Mach 1 PCX multicomponent air painter.Use sprayer to use the blend stream of part A (fluid pressure 20-60 PSI and air pressure 20-80PSI) and part B (fluid pressure 60-80PSI and air pressure 50-60 PSI).
From stove, take out test panels and spray " heap " at the spraying conveyor apparatus.Coating weight is controlled at 16g/ft
2Or 3-4mil build.Test panels is prepared as follows:
Embodiment 7-control group (uncoated);
Embodiment 8-coated portion B;
The coated portion A of embodiment 9-elder generation, coated portion B again; And
Embodiment 10-is coated with part A and the part B that mixes aloft.
As required, can be by opening or closing part A or part B prepares test specimen.
Embodiment 7 is control groups.8 of embodiment use part B (edge sealing compositions).Embodiment 9, use part A as the first step, and use part B as second step.Embodiment 10, use part A and part B in one step.
At ambient temperature, allow the dry also sclerosis of edge coating at least 24 hours.After the drying; separation test sheet material and by using the edge that is coated with of " baffle plate " protection; " baffle plate " is for anti-sealing permeates non-testing surface, is administered to 1 inch hydrophobicity coating composition band of contiguous whole periphery test edge surface on every side with brush.Before the beginning water immersion test, test panels was kept balance 3 days then.
Use is installed to weigh-bridge and is fixed to the edge swell measured value that Mitutoyo digital indicator on the test rack has obtained sheet material.From 1.5 inches beginnings of test panels end, carry out thickness measure with 1 inch interval.This provides about nine (9) individual measured values for each sheet material.Measured value is averaged so that provide one-tenth-value thickness 1/10 for each sample.
In case finish initial measurement, sample placed large-scale edge impregnation groove.2 inches thick polyethylene open celled foam parts are placed under the test panels in the soak bath.By estimate the phase during, refill bath every day and at least once the running water in each groove maintained under the foam surface 1/8 " height.
Take out test panels and measured after at interval and be used for following the trail of and estimating purpose at 72 hours.By deducting average original thickness, determine the percent swell of every group of test panels then divided by average original thickness with average final thickness.Deduct the average swelling value of test group by uncoated OSB swelling value, determine the efficient percentage of each test group then divided by uncoated OSB swelling value.The result is summarized in the following table 6.
Table 6 edge sealant is used and test
| Embodiment | Coating system | Coating weight, g/ft 2 | The OSB edge swell, % | Water absorbs, wt% | Part A efficient, % | Outward appearance |
| 7 | Control group (nothing) | 0 | 25-30 | 11 | NA | The hole exposes fully |
| 8 | Part B | 16 | 15-20 | 6 | NA | The hole exposes fully |
| 9 | Two step part A and part B | 12 | 2-5 | 0.5-1.5 | 100％ | Most of hole is filled and observes |
| 10 | One step part A and part B | 12 | 2-5 | 0.5-1.5 | The 25-30% of desired part A | Most of hole is filled and observes continuous film |
All patents, patent application and the document quoted in the specification are incorporated into way of reference in full at this.Why not under the consistent situation in office, will comprise any master of being defined as herein with disclosure of the present invention.With reference to various concrete and embodiment preferred and technical descriptions the present invention.Yet, should be appreciated that, can carry out many variations and modification and still fall into the present invention.
Claims (31)
1. method that is used for the edge of Seal wood substrate, it comprises the steps:
Engineered wood substrates is provided; And
Two parts edge sealing compositions is administered at least one edge of described base material, and described two parts edge sealing compositions has the first that comprises coagulating agent and comprises the second portion of moisture edge sealing compositions.
2. the method for claim 1, wherein said first and described second portion are continuously applied to described base material.
3. the method for claim 1 uses at least a sprayer and mixing aloft to use described first and described second portion wherein before contact substrate, or in contact substrate immediately.
4. the described method of each claim as described above, wherein said coagulating agent comprises magnesium sulfate, aluminum sulfate, alum, ferric sulfate, calcium sulfate, ferrous sulfate, the positive iron of sulfuric acid, zinc sulfate, aluminium chloride, Al (OH) Cl
2, magnesium chloride, iron chloride, calcium chloride, stannous chloride, stannic chloride, zinc chloride, frerrous chloride, ferric trichloride, zinc carbonate ammonium, aluminium carbonate, aluminum phosphate, trbasic zinc phosphate, ferrous phosphate, phosphate, sulfuric acid, hydrochloric acid, phosphoric acid, acetate, citric acid, p-methyl benzenesulfonic acid or its mixture.
5. method as claimed in claim 4, wherein said coagulating agent comprise magnesium sulfate, aluminum sulfate, alum, aluminium chloride, magnesium chloride, calcium sulfate, calcium chloride or its mixture.
6. method as claimed in claim 5, wherein said coagulating agent comprises aluminum sulfate.
7. the described method of each claim as described above, wherein said coagulating agent by weight, be in described two parts sealing compositions each component gross weight about 1% to about 60%.
8. method as claimed in claim 7, wherein said coagulating agent are about 2% to about 35% of interior each the component gross weights of described two parts sealing compositions by weight.
9. method as claimed in claim 8, wherein said coagulating agent are based on about 2% to about 10% of interior each the component gross weight of described two parts sealing compositions by weight.
10. the described method of each claim as described above, wherein said edge sealing compositions comprises wax emulsion and polymer resin.
11. method as claimed in claim 10, wherein said edge sealing compositions comprise by weight, the wax emulsion solids at least about 20%.
12. method as claimed in claim 11, wherein said edge sealing compositions comprise by weight, the wax emulsion solids at least about 40%.
13. method as claimed in claim 12, wherein said edge sealing compositions comprise by weight, about 40% wax solid is to by weight, about 80% wax solid.
14. method as claimed in claim 10, wherein said polymer resin comprises latex resin.
15. method as claimed in claim 14, wherein said latex resin comprise acrylic resin, SBR styrene butadiene rubbers resin, acetate resin or its mixture.
16. method as claimed in claim 10, wherein said polymer resin comprises the vinyl latex resin.
17. method as claimed in claim 10, wherein said polymer resin is substantially free of thiazolinyl.
18. the described method of each claim as described above, wherein said first also comprises filler.
19. method as claimed in claim 18, wherein said filler comprise clay, bead, calcium carbonate, talcum, silica, organic filler or its mixture.
20. the described method of each claim as described above, wherein said two parts edge sealing compositions is applied on whole four edges of described base material.
21. the described method of each claim as described above, wherein said two parts edge sealing compositions is applied on the main surface of described base material.
22. the described method of each claim as described above, wherein said engineered wood substrates comprises fiberboard or laminated veneer lumber section product.
23. as each described method of claim 1-21, wherein said engineered wood substrates comprises oriented wood chipboard.
24. the described method of each claim as described above, wherein said coating composition provide the about 0.0025cm of film thickness to about 0.025cm.
25. method as claimed in claim 24, wherein said coating composition provide the about 0.0051cm of film thickness to about 0.0203cm.
26. method as claimed in claim 25, wherein said coating composition provide film thickness about 0.0051cm to 0.015cm.
27. an edge seal system that is used for engineered wood substrates, it comprises:
The first and the second portion that comprises moisture edge sealing compositions that comprise coagulating agent.
28. edge seal system as claimed in claim 27, wherein said first and described second portion are continuously applied to described base material.
29. edge seal system as claimed in claim 27 wherein before the described base material of contact, uses at least a sprayer and mixing aloft to use described first and described second portion.
30. as each described edge seal system among the claim 27-29, wherein said edge sealing compositions comprises wax emulsion and polymer resin.
31. as each described edge seal system among the claim 27-30, wherein said first further comprises filler.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81757706P | 2006-06-28 | 2006-06-28 | |
| US60/817,577 | 2006-06-28 | ||
| US60/917,260 | 2007-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101479084A true CN101479084A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800244470A Pending CN101479084A (en) | 2006-06-28 | 2007-06-28 | Method and system for edge-coating wood substrates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893578A (en) * | 2015-05-22 | 2015-09-09 | 大禹伟业(北京)国际科技有限公司 | Anticorrosive material for metallic equipment and preparation and construction methods thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1113810A (en) * | 1964-10-26 | 1968-05-15 | Allied Chem | Process for the manufacture of coated synthetic board |
| GB1489814A (en) * | 1974-01-11 | 1977-10-26 | Casco Ab | Method and composition for coating and sealing |
| US5130184A (en) * | 1984-04-25 | 1992-07-14 | Pyrotite Corporation | Fire barrier coating and fire barrier plywood |
| WO2006039526A2 (en) * | 2004-09-30 | 2006-04-13 | Jeld-Wen, Inc. | Treatment of wood for the production of building structures and other wood products |
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2007
- 2007-06-28 CN CNA2007800244470A patent/CN101479084A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1113810A (en) * | 1964-10-26 | 1968-05-15 | Allied Chem | Process for the manufacture of coated synthetic board |
| GB1489814A (en) * | 1974-01-11 | 1977-10-26 | Casco Ab | Method and composition for coating and sealing |
| US5130184A (en) * | 1984-04-25 | 1992-07-14 | Pyrotite Corporation | Fire barrier coating and fire barrier plywood |
| WO2006039526A2 (en) * | 2004-09-30 | 2006-04-13 | Jeld-Wen, Inc. | Treatment of wood for the production of building structures and other wood products |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893578A (en) * | 2015-05-22 | 2015-09-09 | 大禹伟业(北京)国际科技有限公司 | Anticorrosive material for metallic equipment and preparation and construction methods thereof |
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Application publication date: 20090708 |