139results about How to "Good gluing properties" patented technology

The invention provides a flame-retardant decorative plate and a preparation method thereof. The flame-retardant decorative plate comprises a plate component and a flame-retardant adhesive layer which is at least attached on at least one side surface of the plate component in the thickness direction and formed by an adhesive containing a flame-retardant adhesive, the plate component at least comprises a layer of wood veneer, the flame-retardant adhesive contains water-soluble amine resin, a dehydration catalyst, a char forming agent and auxiliaries, and the flame-retardant adhesive contains water or does not contain the water; the dehydration catalyst is selected from one or more of ammonium polyphosphate, melamine orthophosphate and melamine pyrophosphate; and the degree of polymerization of the ammonium polyphosphate is above 20. The invention further provides a flame-retardant material. The gluing performance of the flame-retardant decorative plate prepared by the method disclosed by the invention can meet the requirements of national standard and the flame retardance can be given to a base material; furthermore, the mechanical properties of the base material can not be affected, the formaldehyde release amount is also above E1 grade, and the flame-retardant decorative plate is safe and environment-friendly; and simultaneously, the natural texture of wood is kept and the decorative effect is good.

The invention relates to a method for manufacturing a multilayer board by a poplar veneer, enzyme treated wood and straw fiber. The method is characterized by comprising the following steps: (1) manufacturing wood fiber; (2) manufacturing the straw fiber; (3) processing the wood and the straw fiber by enzyme; (4) manufacturing a high-density fiber board; and (5) assembling and compregnating the poplar veneer and the fiber board into the multilayer board. The method has the advantages of improving the bonding performance by the enzyme treated wood and straw fiber, manufacturing the high-density fiber board by the enzyme treated wood and straw fiber, being capable of enlarging material sources of the multilayer board by manufacturing the multilayer board by replacing part of the veneers, and using the wood felling and processing remainders and crop straw materials. The enzyme treated wood and straw fiber improve the wetting property of the multilayer board (a surface contact angle is reduced by 10-20%), improve the bonding performance and reduces the application amount of urea formaldehyde resin adhesive by 6-8%. Generally, the application amount of urea formaldehyde resin adhesive is 10-14%.

The invention provides a treatment method for wood surface defects. The treatment method comprises the following steps: (1) cleaning up wood surface defect parts; (2) spraying or wetting the peripheries of the defect parts by using alcohol, an acrylic paint or an adhesive; (3) coating the defect parts by directly using the acrylic paint/the isocyanate adhesive or firstly filling in repairing putty and then coating by using the acrylic paint/the isocyanate adhesive; (4) carrying out indoor natural surface drying for over 3 hours or after baking for 20-120 minutes at the temperature of 30-80 DEG C for complete curing, carrying out light sand treatment on the surface for painting to enable the adhesive or paint to evenly penetrate into the defects so as to achieve a better bonding effect, and ensure that the defect parts cannot crack again in the using process of a repaired wood board, and the acrylic paint and the isocyanate adhesive do not have volatility, thus not polluting the environment and being environmentally-friendly.

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.

The invention discloses a medical stone ceramic product prepared from the following raw materials in percentage by weight: 41-45% of medical stone powder, 16-20% of potassium feldspar powder, 10-14% of soda feldspar powder, 8-10% of quartz powder and 12-17% of Laiyang soil. The preparation method comprises the following steps: weighing raw materials in percentage by weight, grinding and filtering the raw materials by a sieve with the granularity of 100-150 meshes, and uniformly mixing for later use; grinding the powder in a ball miller for 1-2 hours according to the condition that the ratio of the material to balls to water is 1:2:0.5, filtering mud through a sieve with the granularity of 32-35 meshes, and pugging to obtain a finished mud product; performing slip-casting, demoulding, correcting and grinding, and drying for 12-24 hours; sintering a dried mud blank in a furnace in steps and cooling to obtain the required product. The medical stone ceramic product is reasonable in material proportion and scientific in sintering method, so that the medical stone has improved performance, good air permeability and high plasticity, and the yield is up to 97%; the medical stone is free from toxicity and radiation, and has no change in original property and precipitated trace elements; the medical stone can be prepared into various beautiful new material tea sets, cups and other finished products.

The invention discloses a plywood and a preparation method thereof. The plywood comprises multiple layers of veneers; and one or more layers of veneers on the surface of the plywood contain preservatives and/or flame retardants. The method comprises the following steps: adhesive is coated on the surfaces of the veneers; the veneers are laminated for hot pressing after cold prepressing, or the adhesive is cured by hot pressing; and finally, through impregnation, one or more layers of veneers on the surface of the plywood contain the preservatives and/or the flame retardants. The plywood is excellent in corrosion resistance, can synchronously achieve corrosion and flame resistance, and is controllable in inpregnation depth, low in needed impregnation medicine quantity, high in gluing strength, excellent in water resistance and excellent in size stability.

The invention relates to a coal briquette adhesive employing defatted soybean protein as a raw material and a preparation method of the coal briquette adhesive. The coal briquette adhesive is prepared by processing the following raw materials in parts by weight: 20-30 parts of cement, 80-120 parts of modified defatted soy flour, 8-12 parts of organobentonite, 8-12 parts of propolis powder and 400-600 parts of water; the preparation method of the modified defatted soy flour comprises the steps of adding the defatted soy flour, a proper amount of compound enzyme and a proper amount of deionized water to a reaction container, adjusting the pH to 5.5-6.0, carrying out enzymolysis at 45-55 DEG C for 1-2h, heating a product to 85-95 DEG C, inactivating for 2-3min, cooling to 30-35 DEG C, adding 1-2% of a coupling agent and 0.3-0.5% of an oxidizing agent on the basis of the mass of the defatted soy flour and carrying out stirring treatment for 0.5-1h; filtering out impurities, and carrying out vacuum concentration and drying to obtain the modified defatted soy flour, wherein the compound enzyme is a mixture of cellulose, alpha-amylase and protease. The adhesive has good water resistance and bonding property; main raw materials all are natural raw materials; the coal briquette adhesive is wide in source, convenient to process and low in processing cost; the adhesive is long in expiration date; and the coal briquette processed by the coal briquette adhesive is high in quality and not easy to mildew and deliquescence caused by moisture absorption is not easily caused.

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.

The invention relates to a preparation method for an antibacterial mould-proof environment-friendly chipboard. The chipboard comprises an upper surface layer, a core layer and a lower surface layer which are bonded and subjected to hot pressing and recombination. The preparation method comprises the following steps that firstly, the core layer is prepared, (1) raw materials are prepared; (2) pretreatment is conducted on the raw materials; (3) the materials are stirred; and (4) mixed materials obtained in the step (3) are subjected to blank packing, primary hot pressing and cooling, and the core layer is obtained; and secondly, the upper surface layer and the lower surface layer are prepared and are both made of single plates with the thickness of 0.8-1.0 mm, the faces, attached to the core layer, of the upper surface layer and the lower surface layer are evenly coated with an appropriate number of adhesives, then the upper surface layer and the lower surface layer are combined with the core layer, and through secondary hot pressing, cooling, edge cutting and polishing procedures, the antibacterial mould-proof environment-friendly chipboard is obtained. Raw materials of an adhesive A and an adhesive B of the environment-friendly adhesives used in the preparation method are selected reasonably, compatibility is appropriate, the prepared adhesives have excellent water resistance and bonding performance, and the drying process is good in uniformity, the smoothness is good, and excellent antibacterial performance, antiatativity and flame resistance are also achieved.

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.

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.

The invention discloses a novel halogenide-resistant and fireproof plate. The novel halogenide-resistant and fireproof plate aims at solving the problem of no fundamental solving of the halogenide moisture absorption condition due to the existence of magnesium chloride in a formula, especially the severe halogenide moisture absorption condition in plum rain seasons having a large air humidity. The novel halogenide-resistant and fireproof plate comprises a forming agent, a reinforcing material, a lightweight filler, a modifier and water, wherein the forming agent includes alum, magnesium hydroxide and sodium fluorosilicate, the reinforcing material is a glass fiber gridding cloth or other reinforcing materials, and the modifier includes a brightener, a stabilizer and a color toner. No magnesium chloride is used in the invention, so the halogenide phenomenon is thoroughly solved, and people's demands are met.

The invention relates to an environmentally-friendly dry powder emulsion paint for an inner wall and a preparation method thereof. The environmentally-friendly dry powder emulsion paint for the inner wall is prepared through the following raw materials in parts by weight: 20-35 parts of white cement, 20-35 parts of calcium carbonate powder, 8-18 parts of ash calcium powder, 30-40 parts of modified degreased soybean powder pulp, 5-10 parts of titanium dioxide, 10-20 parts of propolis powder, 6-8 parts of water soluble glucan, 4-6 parts of flatting agent, 2-3 parts of organobentonite, 1-3 parts of nanometer magnetic ordered mesoporous medium, 2-3 parts of antioxidant, and 1-3 parts of additive, wherein the additive is at least one of flame-retardant powder, nanometer negative ion powder and an antistatic agent; the flatting agent is a liquid acrylic flatting agent. The environmentally-friendly dry powder emulsion paint for the inner wall is reasonable in raw material selection, and proper in matching; compared with an existing emulsion paint, the prepared dry powder emulsion paint has the advantages of being outstanding in water resistance, outstanding in bonding performance, high in consistency in the drying process, and high in flatness; in addition, the emulsion paint is high in stability during the drying process, is influenced slightly by the outside condition, and is hard to discolor; in addition, the emulsion paint is outstanding in antibacterial capacity, high in static resistance and high in fire retardance.

The invention discloses a locking multi-layer solid wood composite floor and a preparation method thereof. The locking multi-layer solid wood composite floor comprises a floor body (1), a tenon (2) and a mortise (3) matched with the tenon (2) in shape. The floor body (1) comprises a wearing layer (11), a wood panel (12) and a base material layer (13), wherein double-face sanding is conducted on the wood panel (12) and the base material layer (13). According to the locking multi-layer solid wood composite floor and the preparation method thereof, the problems that hazardous substance-free formaldehyde is released by an existing solid wood composite floor and glue failures and layering of all layers of veneer occur after the board is used for a period of time are solved; and the problems that the existing multi-layer solid wood composite floor has a large mat formation gap, big assembly height differences and serious buckling deformation and needs to be renovated to be used again after being used for a period of time are also solved.

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.

The invention discloses a high performance fiberboard. The prepared board has superior bending property and impact property, and is better in mechanical properties. By reasonably compounding camphor wood powder, birch wood powder and maple wood powder, the fiberboard is enabled to be uniform in size and density and better in harmony; the wood powder is subjected to modification treatment by using glucuronolactone, acetaminophen and polyvinyl alcohol, so that the fiberboard is enabled to contain multiple active groups, the gluing effect between the fiberboard and an adhesive component is facilitated; furthermore; furthermore, the compatibility of the fiberboard with modified basalt fibers is promoted, so that the mechanical properties of the board are improved; diatomaceous earth and tapioca flour are used for modifying basalt fibers, and a porous interface is formed on the surface of basalt, so that the interaction between the basalt fibers and wood fibers as well as between the basalt fibers and an adhesive is promoted, and a framework effect is achieved; therefore, the bending strength and impact toughness of the board are remarkably improved.

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.