Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

38results about How to "Increase the glue solid content" patented technology

Method for manufacturing anti-insect and anti-mold oriented strand board with full eucalyptus leftover materials

The invention discloses a method for manufacturing an anti-insect and anti-mold oriented strand board with full eucalyptus leftover materials. The manufacturing method comprises the following steps of: preparing materials, drying, peeling and removing impurities, sorting and storing, respectively gluing on a surface core layer, hierarchically paving, in advance hot press molding, and sanding wood finishes; an isocyanate sawdust powder hybrid adhesive is coated on the surface, and an anti-insect and anti-mold composite urea-formaldehyde resin adhesive is coated on the core layer; wood shavings on the core layer are divided into three-layer structures, comprising intermediate layer of core layer, upper surface layer of core layer and lower surface layer of core layer; the intermediate layer of the core layer is paved longitudinally, and the upper surface layer of the core layer and the lower surface layer and surface layer of the core layer are paved horizontally. For the oriented strand board prepared by the method, the static bending intensity in a parallel direction is in a scope of 33-39 MPA, the parallel elasticity modulus is in the scope of 4614-4779 MPA, the vertical elasticity modulus is in the scope of 1504-1771 MPA, the thickness swelling rate of water absorption in 24 h is in the scope of 10%-17%, and the vertical nail-holding power reaches up to 89000N. In the manufacturing method, a problem that the board is easy to suffer from erosion of white ants and moths is thoroughly solved by adding an anti-insect and anti-mold additive, and the service life of the board is prolonged.
Owner:广西横县新威林板业有限公司

Method for producing particle board by adopting moisture-proof composite urea resin

The invention discloses a method for producing particle board by adopting moisture-proof composite urea resin. The method comprises the steps of material preparation, drying, debarking, sand removing, sorting, grinding, glue blending, hot pressing molding and the like. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, magnesium oxide is taken as an antiaging agent, hexamine and triglycidyl isocyanurate are taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a moisture-proof agent is also added to prepare the moisture-proof composite urea resin; the composite urea resin has the advantages of being low in formaldehyde residual volume, good in water resistance and good in moisture resistance; therefore, the produced particle board is low in formaldehyde residual volume, hard to expand after absorbing water and hard to arch and deform, and a wear-resistant layer is hard to damage. The particle board produced by the method disclosed by the invention is low in formaldehyde residual volume, also stable in quality, hard to damage, good in water resistance and good in moisture resistance.
Owner:广西横县新威林板业有限公司

Method for producing eucalyptus wood plywood by adopting insect-proof and mildew-proof composite urea formaldehyde resin

ActiveCN106182218AReduce formaldehyde contentGood gluing propertiesNon-macromolecular adhesive additivesStarch derivtive adhesivesAntioxidantAdditive ingredient
The invention discloses a method for producing eucalyptus wood plywood by adopting insect-proof and mildew-proof composite urea formaldehyde resin. The method comprises the following steps of: wood slab rotating, veneer drying, gluing, tertiary cold-pressing, standing and maintaining, tertiary hot-pressing, radiating and maintaining, and slab fixed-thickness sanding. The key point of the production method is that insect-proof and mildew-proof composite urea formaldehyde resin, which is prepared by taking melamine modified urea formaldehyde resin as an adhesive main ingredient, adding oxidized starch as a viscous complexing agent, taking polyvinyl alcohol as a flexibilizer, taking hydrogenated rosin as an antioxidant, taking polyisocyanate as a curing agent, taking triethoxyisobutylsilane as a bridging agent, taking phenolation lignin as a formaldehyde catching agent and adding an insect-proof and mildew-proof agent, is adopted. Solid wood composite floor produced by adopting the insect-proof and mildew-proof composite urea formaldehyde resin has the advantages of low formaldehyde residual amount and good insect-proof and mildew-proof effect, has relatively strong inhibiting effect on breeding of aspergillus, trichoderma and blue mould, and has instantaneous kill-down capacity and long-acting prevention effect on powder post beetles of wood slab.
Owner:广西横县正林木业有限公司

Method for producing high-temperature-resisting oriented particle board by using total-eucalyptus leftover material

The invention provides a method for producing a high-temperature-resisting oriented particle board by using a total-eucalyptus leftover material. The method comprises the steps of material preparation, drying, debarking, impurity removing, sorting, storage, respective gluing of a surface layer and a core layer, classified paving, pre-hot-pressing molding, sanding of an overcoating and the like, wherein the surface layer is coated with an isocyanate sawdust powder composite adhesive; the core layer is coated with a high-temperature-resisting composite urea resin adhesive; the core layer wood shaving is of a three-layer structure which comprises a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer; the core layer middle layer is paved longitudinally; the core layer upper surface layer, the core layer lower surface layer and the surface layer are paved horizontally. The oriented particle board prepared by the method provided by the invention is 31MPa to 40MPa in parallel static bending intensity, 4605MPa to 4776MPa in parallel elasticity modulus, 1501MPa to 1770MPa in vertical elasticity modulus, 10% to 18% in thickness swelling rate of 24-h water absorption and as high as 89009N in vertical nail-holding power, and is good in dimensional stability and reliability. Moreover, the oriented particle board prepared by the method provided by the invention is also excellent in heat resistance.
Owner:广西横县新威林板业有限公司

Method for producing flame-retardant oriented strand boards with full eucalyptus wood scraps

The invention provides a method for producing flame-retardant oriented strand boards with full eucalyptus wood scraps. The method comprises the working procedures of material preparation, drying, debarking and impurity removal, sorting and storage, respective gluing on surface layers and a core layer, graded laying, preheating pressing molding, sanding and finishing, and the like, wherein the surface layers are coated with isocyanate sawdust powder compound adhesive, the core layer is coated with flame-retardant compound urea-formaldehyde resin adhesive, core layer shavings are divided to form a three-layer structure which includes a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer, vertical laying is adopted for the core layer middle layer, and transverse laying is adopted for the core layer upper surface layer, the core layer lower surface layer and the surface layers. According to the oriented strand boards produced with the method, the static bending intensity in the parallel direction ranges from 30 MPa to 40 MPa, the parallel elasticity modulus ranges from 4600 MPa to 4770 MPa, the vertical elasticity modulus ranges from 1500 MPa to 1780 MPa, the thickness swelling rate of water absorption of 24 hours ranges from 10% to 17%, the vertical nail-holding power is as high as 89000 N, and the dimensional stability and reliability are good. In addition, the oriented strand boards produced with the method further have the excellent effect of flame retardance.
Owner:广西横县新威林板业有限公司

Method for producing weather-resistant oriented strand board by using full-eucalyptus leftover material

ActiveCN106272865AWhite colorGood film formingNon-macromolecular adhesive additivesStarch derivtive adhesivesOptoelectronicsImpurity
The invention provides a method for producing a weather-resistant oriented strand board by using a full-eucalyptus leftover material. The method includes material preparation, drying, peel and impurity removing, sorting storage, gluing of a surface layer and core layer, classified pavement, pre-hot pressing forming, facing sanding and other working procedures. The surface layer is coated with isocyanate sawdust powder composite adhesives, and the core layer is coated with weather-resistant composite urea-formaldehyde resin adhesives. Core layer wood shavings are divided into three layers of structures and comprise a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer. The core layer middle layer is longitudinally laid, and the core layer upper surface layer, the core layer lower surface layer and a surface layer are transversely laid. According to the oriented strand board prepared through the method, the static bending intensity in the parallel direction is 31-40MPa, and the parallel elasticity modulus is 4580-4760MPa; and the vertical elasticity modulus is 1510-1790MPa, the 24 h thickness swelling rate of water absorption is 11%-16%, vertical nail-holding ability reaches up to 87800N, and the dimensional stability and reliability are good. Moreover, the oriented strand board prepared through the method has excellent weather resistance.
Owner:广西横县新威林板业有限公司

Method for producing antiseptic oriented strand board through full-eucalyptus leftover materials

InactiveCN106239689AWhite colorGood film formingWood veneer joiningDomestic articlesDusting powdersOptoelectronics
The invention provides a method for producing an antiseptic oriented strand board through full-eucalyptus leftover materials. The method comprises the procedures of material preparing, drying, peel and impurity removing, sorting and storing, surface layer and core layer gluing, classified paving, preheating press forming, sanding facing and the like. A surface layer is coated with an isocyanate wood dust powder composite adhesive, a core layer is coated with an antiseptic composite urea-formaldehyde resin adhesive, and core layer wood shavings are of three-layer structures including a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer. The core layer middle layer is longitudinally laid, and the core layer upper surface layer, the core layer lower surface layer and the surface layer are transversely laid. According to the oriented strand board prepared through the method, the static bending intensity in the parallel direction ranges from 34 MPa to 38 MPa, and the parallel elasticity modulus ranges from 4,610 MPa to 4,780 MPa; and the vertical elasticity modulus ranges from 1,500 MPa to 1,774 MPa, the water absorption thickness swelling rate in 24 h ranges from 11% to 16%, and the vertical nail holding force reaches up to 89,000 N. Meanwhile, through adding of an antiseptic agent, the problem that panels are prone to suffering from corrosion of wood-destroying fungi, moulds and white ants is thoroughly solved, and the service life of the panels is prolonged.
Owner:广西横县新威林板业有限公司

Method for producing cabinet board by adopting flame-retardant composite urea resin

The invention relates to home building materials, in particular to a method for producing a cabinet board by adopting flame-retardant composite urea resin. The cabinet board structurally comprises decorative paper, a cunninghamia lanceolata veneer, a shaving board and a back board from top to bottom, wherein the periphery of the cabinet board is edged with aluminium alloy; a flame-retardant composite urea resin adhesive is applied between the cunninghamia lanceolata veneer and the shaving board; a flame-retardant composite urea resin adhesive is applied between the shaving board and the back board; a flame-retardant composite urea resin adhesive is also adopted for the shaving board in the cabinet board. The cabinet board manufactured by the method has the advantages of strong water resistance, high bonding strength, low formaldehyde residue and a flame-retardant function. The shaving board in production of the cabinet board is made of waste materials and leftover materials which can not be utilized in the process of manufacturing a multilayered eucalyptus board after rotary cutting of eucalyptus boards, and the leftover materials are utilized, so that the woods can be saved and the production cost of an enterprise can be reduced.
Owner:广西横县正林木业有限公司

Method for producing whole eucalyptus parquet from anti-insect and anti-mildew composite urea-formaldehyde resin

A method for producing whole eucalyptus parquet from anti-insect and anti-mildew composite urea-formaldehyde resin comprises steps as follows: rotary cutting of a board to form pieces; single plate drying; adhesive coating; three times of cold pressing; leaving to stand for reconditioning; three times of hot pressing; heat dissipation for reconditioning; fixed-thickness sanding of plate blanks; adhesive coating of base material surface layers; reconditioning and grooving; paint coating, drying and setting. The key of the production method is that melamine modified urea-formaldehyde resin is used as a main adhesive material; oxidized starch is added as a viscous compound; polyvinyl alcohol is added as a toughening agent; hydrogenated rosin is added as an anti-oxidant; polyisocyanate is added as a curing agent; isobutyltriethoxysilane is added as a bridging agent; phenolated lignin is added as a formaldehyde catching agent; an anti-insect and anti-mildew agent is added; anti-insect and anti-mildew composite urea-formaldehyde resin is prepared; and the parquet prepared from anti-insect and anti-mildew composite urea-formaldehyde resin has the advantages of being low in formaldehyde residual amount and good in anti-insect and anti-mildew effect, has the relatively high inhibition effect on breeding of Aspergillus, Trichoderma and Penicillium and has the instant killing force and the long-acting preventive effect on board powder-pest beetles.
Owner:广西横县正林木业有限公司

Method for producing particle board through anti-insect and anti-mold composite urea formaldehyde resin

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.
Owner:广西横县新威林板业有限公司

Method for producing total-eucalyptus plywood by adopting moisture-proof composite urea resin

The invention discloses a method for producing total-eucalyptus plywood by adopting moisture-proof composite urea resin. The method comprises the following steps: rotatably cutting wood boards; drying each board; gluing; performing cold pressing for three times; stewing and conditioning; performing hot pressing for three times; cooling and conditioning; determining the thickness of a board blank and sanding the board blank. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, magnesium oxide is taken as an antiaging agent, hexamine and triglycidyl isocyanurate are taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and aliphatic polyurethane acrylate is taken as a moisture-proof agent to prepare the composite urea resin; the composite urea resin has the advantages of being low in formaldehyde residual volume, good in water resistance and good in moisture resistance; therefore, the produced total-eucalyptus plywood is low in formaldehyde residual volume, hard to expand after absorbing water and hard to arch and deform, and a wear-resistant layer is hard to damage.
Owner:南宁市创锦胶合板有限责任公司

Method for producing full-eucalyptus plywood with flame-retardant composite urea-formaldehyde resin

InactiveCN106346568AWhite colorGood film formingNon-macromolecular adhesive additivesStarch derivtive adhesivesScavengerAdditive ingredient
The invention relates to a method for producing full-eucalyptus plywood with flame-retardant composite urea-formaldehyde resin, comprising the steps of wood board peeling->veneer drying -> gluing -> three times of cold pressing -> standing for curing->three times of hot pressing ->heat dissipation for curing->slab calibrating and sanding. The method is characterized in that the melamine modified urea-formaldehyde resin is used as the main ingredient in the adhesive; the oxidized starch as adhesive compound, the polyving akohol as toughening agent, the hydrogenated rosin as antioxidant, the polyisocyanate as curing agent, i-butyltriethoxanesilane as bridging agent, phenolic lignin as formaldehyde scavenger and flame retardant agent are added together to produce the flame-retardant composite urea-formaldehyde resin. The flame-retardant composite urea-formaldehyde resin has such advantages as littleformaldehyde residue, perfect flame resistance and lowering combustion temperature by internal endothermic reaction so that the full-eucalyptus parquet contains little formaldehyde residue and has good flame-retardant effectin case of fire disasters.
Owner:南宁市创锦胶合板有限责任公司

Method for producing full-eucalyptus parquet with flame-retardant composite urea-formaldehyde resin

InactiveCN106346584AReduce formaldehyde contentGood gluing propertiesNon-macromolecular adhesive additivesLaminationScavengerToughening
The invention relates to a method for producing full-eucalyptus parquet with flame-retardant composite urea-formaldehyde resin, comprising the steps of wood board peeling->veneer drying -> gluing -> three times of cold pressing -> standing for curing->three times of hot pressing ->heat dissipation for curing->slab calibrating and sanding-> substrate surface gluing -> curing and slotting-> leaching paint, drying and shaping. The method is characterized in that the melamine modified urea-formaldehyde resin is used as the main ingredient in the adhesive; the oxidized starch as adhesive compound, the polyving akohol as toughening agent, the hydrogenated rosin as antioxidant, the polyisocyanate as curing agent, i-butyltriethoxanesilane as bridging agent, phenolic lignin as formaldehyde scavenger and flame retardant agent are added together to produce the flame-retardant composite urea-formaldehyde resin. The flame-retardant composite urea-formaldehyde resin has such advantages as little formaldehyde residue, perfect flame resistance and lowering combustion temperature by internal endothermic reaction so that the full-eucalyptus parquet contains little formaldehyde residue and has good flame-retardant effect in case of fire disasters.
Owner:南宁市林润木业有限公司

Method for producing total-eucalyptus plywood by adopting weather-resistant composite urea resin

The invention discloses a method for producing total-eucalyptus plywood by adopting weather-resistant composite urea resin. The method comprises the following steps: rotatably cutting wood boards; drying each board; gluing; performing cold pressing for three times; stewing and conditioning; performing hot pressing for three times; cooling and conditioning; determining the thickness of a board blank and sanding the board blank. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, polyisocyanate is taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher, and moreover an antioxidant and an ultraviolet absorbent are also added to prepare the weather-resistant composite urea resin; the composite urea resin has the advantages of low formaldehyde residual volume and good weather resistance. The total-eucalyptus plywood produced by the method disclosed by the invention is excellent in weather resistance and is relatively high in environmental disruption tolerance.
Owner:南宁市林润木业有限公司

Method for adopting high-temperature-resisting composite urea resin for producing whole-eucalyptus solid wood composite floor

The invention discloses a method for adopting high-temperature-resisting composite urea resin for producing a whole-eucalyptus solid wood composite floor. The method includes the steps of board rotary slicing, veneer drying, gluing, three times of cold pressing, standing maintaining, three times of hot pressing, heat dissipating maintaining, slab fixed-thickness sanding, base material surface layer gluing, maintaining grooving and paint spraying, drying and sizing. The production method is characterized in that the high-temperature-resisting composite urea resin is prepared by adopting melamine modified urea resin as the main material of an adhesive, adding oxidized starch as a viscosity complexing agent, adopting polyvinyl alcohol as a toughening agent, adopting hydrogenated rosin as an antioxidant, adopting polyisocyanate as a curing agent, adopting isobutyl triethoxy silane as a bridging agent, adopting phenolate lignin as a formaldehyde catching agent and adding high-temperature-resisting filler. The high-temperature-resisting composite urea resin prepared through the method is used for producing the whole-eucalyptus solid wood composite floor so that the whole-eucalyptus solid wood composite floor can have good heat resistance performance, no obvious crack phenomenon happens under high-temperature and high-strength ultraviolet irradiation or long-time ultraviolet irradiation, and economic losses are reduced.
Owner:广西横县正林木业有限公司

Method for producing whole eucalyptus plywood by using compound urea-formaldehyde resin against insects and mildew

ActiveCN106182218BReduce formaldehyde contentGood gluing propertiesNon-macromolecular adhesive additivesStarch derivtive adhesivesPolyvinyl alcoholAntioxidant
The invention discloses a method for producing eucalyptus wood plywood by adopting insect-proof and mildew-proof composite urea formaldehyde resin. The method comprises the following steps of: wood slab rotating, veneer drying, gluing, tertiary cold-pressing, standing and maintaining, tertiary hot-pressing, radiating and maintaining, and slab fixed-thickness sanding. The key point of the production method is that insect-proof and mildew-proof composite urea formaldehyde resin, which is prepared by taking melamine modified urea formaldehyde resin as an adhesive main ingredient, adding oxidized starch as a viscous complexing agent, taking polyvinyl alcohol as a flexibilizer, taking hydrogenated rosin as an antioxidant, taking polyisocyanate as a curing agent, taking triethoxyisobutylsilane as a bridging agent, taking phenolation lignin as a formaldehyde catching agent and adding an insect-proof and mildew-proof agent, is adopted. Solid wood composite floor produced by adopting the insect-proof and mildew-proof composite urea formaldehyde resin has the advantages of low formaldehyde residual amount and good insect-proof and mildew-proof effect, has relatively strong inhibiting effect on breeding of aspergillus, trichoderma and blue mould, and has instantaneous kill-down capacity and long-acting prevention effect on powder post beetles of wood slab.
Owner:广西横县正林木业有限公司

Method for producing total-eucalyptus plywood by adopting anticorrosive composite urea resin

The invention discloses a method for producing total-eucalyptus plywood by adopting anticorrosive composite urea resin. The method comprises the following steps: rotatably cutting wood boards; drying each board; gluing; performing cold pressing for three times; stewing and conditioning; performing hot pressing for three times; cooling and conditioning; determining the thickness of a board blank and sanding the board blank. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, hydrogenated rosin is taken as an antioxidant, polyisocyanate is taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a preservative is also added to prepare the anticorrosive composite urea resin. The total-eucalyptus plywood produced by adopting the anticorrosive composite urea resin has the advantages of low formaldehyde residual volume and good corrosion resistance, is relatively good in resistance to wood-destroying fungi, mould and white ants, and is prolonged in service life.
Owner:广西横县正林木业有限公司

Method for producing particle board by adopting flame-retardant composite urea resin

The invention discloses a method for producing particle board by adopting flame-retardant composite urea resin. The method comprises the steps of material preparation, drying, debarking, sand removing, sorting, grinding, glue blending, hot pressing molding and the like. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, hydrogenated rosin is taken as an antioxidant, polyisocyanate is taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a flame retardant is also added to prepare the flame-retardant composite urea resin; the composite urea resin has the advantages of low formaldehyde residual volume and good flame retardance; by internal heat absorption reaction, the combustion temperature is reduced, so the produced particle board is low in formaldehyde residual volume and is effectively flame-resistant when a fire occurs.
Owner:广西横县新威林板业有限公司

Weather-resistant composite urea resin and production method thereof

InactiveCN106280245AImprove water resistanceAvoid infringementAntioxidantUltraviolet lights
The invention discloses weather-resistant composite urea resin and a production method thereof. The weather-resistant composite urea resin comprises the following raw materials: melamine modified urea-formaldehyde resin, oxidized starch, polyvinyl alcohol, hydrogenated rosin, polyoxyethylene polyoxypropylene propylene glycol ether, polyisocyanate, triethoxyisobutylsilane, phenolic lignin, clean water, an ultraviolet light absorber and an antioxidant. The production method comprises the following steps: firstly adding the clean water into a reaction kettle, and heating to the temperature of 80-100 DEG C; adding the oxidized starch, the triethoxyisobutylsilane, the ultraviolet light absorber, the antioxidant and the polyoxyethylene polyoxypropylene propylene glycol ether, stirring for 10-30 minutes, adding polyvinyl alcohol and phenolic lignin for dissolving, adding melamine modified urea-formaldehyde resin and oxidized starch, maintaining the temperature of 80-90 DEG C, stirring and reacting for 2-5 hours, adding polyisocyanate within 10-20 minutes before use, and uniformly mixing and stirring, thereby obtaining the product. The weather-resistant composite urea resin disclosed by the invention is high in water resistance, high in bonding strength, low in residual formaldehyde volume and high in weather resistance and serves as a main adhesive of artificial boards, and the weather resistance of the artificial boards can be improved.
Owner:南宁市创锦胶合板有限责任公司

Method for producing full-eucalyptus parquet through dampproof composite urea resin

InactiveCN106239646AReduce formaldehyde contentGood gluing propertiesNon-macromolecular adhesive additivesStarch derivtive adhesivesFiberPolyvinyl alcohol
A method for producing a full-eucalyptus parquet through dampproof composite urea resin comprises the following steps of wood board sheet rotary cutting, veneer drying, gluing, three-time cold pressing, standing curing, three-time hot pressing, heat dissipation curing, slab fixed-thickness sanding, base material surface layer gluing, curing slotting and spraying drying sizing. According to the key of the production method, melamine modified urea resin is adopted as a main adhesive material, and oxidized starch is added as a sticky complexing agent; polyvinyl alcohol serves as a toughening agent; magnesium oxide serves as an anti-aging agent; hexamine and triglycidyl isocyanurate serve as a curing agent; vinyltriethoxysilane serves as a bridging fiber agent; and phenolate lignin is the dampproof composite urea resin prepared through a formaldehyde capture agent and an added dampproof agent. The composite urea resin has the beneficial effects of being low in formaldehyde residual volume and good in water resistance and dampproof performance, so that the produced full-eucalyptus parquet is low in formaldehyde residual volume and is not prone to expansion after absorbing water, arching and deformation are not likely to happen, and an abrasion resisting layer is not prone to damage.
Owner:南宁市创锦胶合板有限责任公司

Method of producing full-eucalyptus wood plywood by adopting high-temperature resistance composite urea-formaldehyde resin

InactiveCN106239644AWhite colorGood film formingNon-macromolecular adhesive additivesStarch derivtive adhesivesScavengerAntioxidant
The invention discloses a method of producing full-eucalyptus wood plywood by adopting high-temperature resistance composite urea-formaldehyde resin. The method comprises the following steps: rotary cutting a wood board into a sheet; drying a veneer; gumming; cold pressing for three times; standing, and curing; hot pressing for three times; carrying out heat dissipation and curing; and defining the thickness of a board blank and sanding. The production method has the key points that melamine modified urea-formaldehyde resin is adopted as a major ingredient of an adhesive, and oxidized starch is added as a viscous complex additive; polyvinyl alcohol is taken as a toughening agent; hydrogenated rosin is taken as an antioxidant; polyisocyanate is taken as a curing agent; isobutyltriethoxysilane is taken as a bridging agent; and phenolized lignin is taken as a formaldehyde scavenger, and then a high-temperature resistance filler is added to prepare the high-temperature resistance composite urea-formaldehyde resin. By using the high-temperature resistance composite urea-formaldehyde resin prepared by the method to be used for producing the full-eucalyptus wood plywood, the full-eucalyptus wood plywood is excellent in heat resistance and does not have obvious cracking phenomenon under high temperature, high-strength ultraviolet irradiation or long-time ultraviolet irradiation, thus the economic loss is reduced.
Owner:南宁市创锦胶合板有限责任公司

Method for producing all-eucalyptus solid wood composite floor by corrosion-resistance composite urea resins

The invention discloses a method for producing an all-eucalyptus solid wood composite floor by corrosion-resistance composite urea resins. The method comprises the steps of: board rotary slicing-veneer drying-gluing-three times of cold pressing-standing maintenance-three times of hot pressing-cooling maintenance-blank fixed-thickness sanding-substrate surface layer gluing-maintenance grooving-paint drying shaping. The key point of the method is to adopt melamine modified urea resins as a main material of adhesive; oxide starch is added as a viscous compounding agent; polyvinyl alcohol serves as a toughening agent; hydrogenated rosin serves as antioxidant; polyisocyanate serves as a curing agent; isobutyltriethoxysilane serves as a bridging agent; phenolated lignin serves as a formaldehyde capturing agent; and a preservative is added to prepare the corrosion-resistance composite urea resins; and the solid wood composite floor produced by the corrosion-resistance composite urea resins has the advantages of low formaldehyde residual volume and good corrosion resistance, is better in resistance on wood rotting fungus, mould and termites, and prolongs the service life of the all-eucalyptus solid wood composite floor.
Owner:南宁市林润木业有限公司

Method for adopting anticorrosion composite urea resin for producing cabinet board

The invention relates to a home furnishing building material, in particular to a method for adopting anticorrosion composite urea resin for producing a cabinet board. The cabinet board structurally comprises decoration paper, a fir veneer, a chipboard and a back board in sequence from top to bottom. The periphery of the cabinet board is edged with an aluminum alloy. The part between the fir veneer and the chipboard is coated with an anticorrosion composite urea resin adhesive. The part between the chipboard and the back board is coated with an anticorrosion composite urea resin adhesive. An anticorrosion composite urea resin adhesive is also adopted in the chipboard in the cabinet board. The cabinet board manufactured through the method has high water resistance and high bonding strength and is low in formaldehyde residual volume, and meanwhile the anticorrosion function is achieved. The raw material adopted for producing the chipboard in the cabinet board is waste-leftover materials which cannot be used in the process of manufacturing a multilayer eucalyptus board after the eucalyptus board is subjected to rotary cutting, the leftover materials are utilized, wood is saved, and the production cost of an enterprise is reduced.
Owner:南宁市创锦胶合板有限责任公司

Method for producing cabinet board with anti-insect and anti-mold composite urea-formaldehyde resin

The invention relates to a home building material, especially a method for producing cabinet board with anti-insect and anti-mold composite urea-formaldehyde resin. The cabinet board comprises from top to bottom: decorative paper, cunninghamia lanceolata veneer, particleboard and backboard; besides, the cabinet board is surrounded by aluminum alloy trim. The contact surface between the cunninghamia lanceolata veneer and particle board is coated with anti-insect and anti-mold composite urea-formaldehyde resin adhesives, which are also applied to the contact surface between the particleboard and backboard as well as the particleboard in the cabinet board. The cabinet board manufactured according to the invention has strong water resistance, high bonding strength, littleformaldehyde residue as well as anti-insect and anti-mold functions. Raw materials used for production of the particleboard in the cabinet board are the waste and scrap materials which cannot be used for production of the multi-layer eucalyptus board after peeling the eucalyptus wood, and the home building material utilizes the scraps to save wood and reduce productioncosts of the enterprises.
Owner:南宁市创锦胶合板有限责任公司

Method for producing cabinet board by adopting damp-proof composite urea resin

The invention relates to home building materials, in particular to a method for producing a cabinet board by adopting damp-proof composite urea resin. The cabinet board structurally comprises decorative paper, a China fir veneer, a chipboard and a backboard from top to bottom, wherein the four sides of the cabinet board are edged with aluminum alloy; damp-proof composite urea resin adhesives are smeared between the China fir veneer and the chipboard; damp-proof composite urea resin adhesives are smeared between the chipboard and the backboard; and the chipboard in the cabinet board adopts damp-proof composite urea resin adhesives as well. The cabinet board manufactured through the method has the properties of high water resistance, high adhesive strength and low formaldehyde residual volume and the damp-proof function. The raw materials adopted by the chipboard in production of the cabinet board are waste materials-leftover materials which can not be used in the process of manufacturing a multi-layer eucalyptus board after rotary cutting of the eucalyptus board. The leftover materials are used, so that wood materials are saved, and the production cost is reduced for enterprises.
Owner:南宁市林润木业有限公司

Insect-proof and mildew-proof composite urea resin and production method thereof

The invention discloses insect-proof and mildew-proof composite urea resin and a production method thereof. The resin comprises the following raw materials: melamine modified urea resin, oxidized starch, polyvinyl alcohol, hydrogenated rosin, propylene glycol polyoxypropylene polyvinyl ether, polyisocyanate, isobutyltriethoxysilane, phenolate lignin, clear water and an insert-resistant mildew-proof agent. The production method comprises the following steps: putting the clear water into a reaction kettle, heating the clear water to be 80 to 100 DEG C, adding the hydrogenated rosin, the isobutyltriethoxysilane and the propylene glycol polyoxypropylene polyvinyl ether, stirring, adding the polyvinyl alcohol and the phenolate lignin, dissolving the polyvinyl alcohol and the phenolate lignin, adding the melamine modified urea resin, the oxidized starch and the insert-resistant mildew-proof agent, performing a stirring reaction for 2 to 5 hours while keeping the temperature to be 80 to 90 DEG C, adding the polyisocyanate before use, and uniformly mixing and stirring. The resin is high in water resistance and bonding strength, low in formaldehyde residual volume, and obvious in insect-proof and mildew-proof effects, prolongs the service lives of panels, and has a high promotion value.
Owner:南宁市创锦胶合板有限责任公司

Method for producing high temperature resistant oriented strand board from whole eucalyptus wood scraps

The invention provides a method for producing a high-temperature-resisting oriented particle board by using a total-eucalyptus leftover material. The method comprises the steps of material preparation, drying, debarking, impurity removing, sorting, storage, respective gluing of a surface layer and a core layer, classified paving, pre-hot-pressing molding, sanding of an overcoating and the like, wherein the surface layer is coated with an isocyanate sawdust powder composite adhesive; the core layer is coated with a high-temperature-resisting composite urea resin adhesive; the core layer wood shaving is of a three-layer structure which comprises a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer; the core layer middle layer is paved longitudinally; the core layer upper surface layer, the core layer lower surface layer and the surface layer are paved horizontally. The oriented particle board prepared by the method provided by the invention is 31MPa to 40MPa in parallel static bending intensity, 4605MPa to 4776MPa in parallel elasticity modulus, 1501MPa to 1770MPa in vertical elasticity modulus, 10% to 18% in thickness swelling rate of 24-h water absorption and as high as 89009N in vertical nail-holding power, and is good in dimensional stability and reliability. Moreover, the oriented particle board prepared by the method provided by the invention is also excellent in heat resistance.
Owner:广西横县新威林板业有限公司

Method for producing weather-resistant oriented strand board from whole eucalyptus wood scraps

ActiveCN106272865BLow costReduce energy consumptionNon-macromolecular adhesive additivesStarch derivtive adhesivesOptoelectronicsImpurity
The invention provides a method for producing a weather-resistant oriented strand board by using a full-eucalyptus leftover material. The method includes material preparation, drying, peel and impurity removing, sorting storage, gluing of a surface layer and core layer, classified pavement, pre-hot pressing forming, facing sanding and other working procedures. The surface layer is coated with isocyanate sawdust powder composite adhesives, and the core layer is coated with weather-resistant composite urea-formaldehyde resin adhesives. Core layer wood shavings are divided into three layers of structures and comprise a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer. The core layer middle layer is longitudinally laid, and the core layer upper surface layer, the core layer lower surface layer and a surface layer are transversely laid. According to the oriented strand board prepared through the method, the static bending intensity in the parallel direction is 31-40MPa, and the parallel elasticity modulus is 4580-4760MPa; and the vertical elasticity modulus is 1510-1790MPa, the 24 h thickness swelling rate of water absorption is 11%-16%, vertical nail-holding ability reaches up to 87800N, and the dimensional stability and reliability are good. Moreover, the oriented strand board prepared through the method has excellent weather resistance.
Owner:广西横县新威林板业有限公司

Method for producing particleboard with moisture-proof composite urea-formaldehyde resin

ActiveCN106313205BTake advantage ofReduce formaldehyde contentNon-macromolecular adhesive additivesStarch derivtive adhesivesWear resistantSilanes
The invention discloses a method for producing particle board by adopting moisture-proof composite urea resin. The method comprises the steps of material preparation, drying, debarking, sand removing, sorting, grinding, glue blending, hot pressing molding and the like. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, magnesium oxide is taken as an antiaging agent, hexamine and triglycidyl isocyanurate are taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a moisture-proof agent is also added to prepare the moisture-proof composite urea resin; the composite urea resin has the advantages of being low in formaldehyde residual volume, good in water resistance and good in moisture resistance; therefore, the produced particle board is low in formaldehyde residual volume, hard to expand after absorbing water and hard to arch and deform, and a wear-resistant layer is hard to damage. The particle board produced by the method disclosed by the invention is low in formaldehyde residual volume, also stable in quality, hard to damage, good in water resistance and good in moisture resistance.
Owner:广西横县新威林板业有限公司

A kind of high-strength bamboo and oriented strand board composite board and preparation method thereof

The invention discloses a high-strength bamboo and oriented strand board composite board. The composite board is sequentially provided with an upper surface layer, an upper core layer, a middle core layer, a lower core layer and a lower surface layer from top to bottom, wherein the upper surface layer and the lower surface layer are made of bamboo chip shavings, the upper core layer and the lowercore layer are made of waste eucalyptus veneer shavings and the bamboo chip shavings, and the middle core layer is made of the waste eucalyptus veneer shavings; and the invention further provides a preparation method of the composite board, the preparation method comprises the following steps of raw material preparing, raw material drying, raw material screening, glue applying, laying, pressing and the like. According to the composite board, the bamboo and the waste eucalyptus veneers are adopted as the raw materials, so that wood resources are saved, the utilization path of the bamboo and thewood resources can be expanded, the composite board is high in strength, not prone to be deformed, safe and environment-friendly, and all performances of the composite board are superior to the performances of national standards; the composite board has excellent heat resistance, and has no obvious cracking condition under high-temperature, high-strength ultraviolet irradiation or long-time ultraviolet irradiation, so that the economic loss is reduced, and the composite board has a good application prospect.
Owner:广西横县新威林板业有限公司