45results about How to "Improve waterproof and flame retardant performance" patented technology

The invention provides a waterproof flame-retardant honeycomb paper board production process, which comprises uncoiling, performing waterproof flame-retardant pretreatment, drying, re-coiling, manufacturing a honeycomb paper core and forming a honeycomb paper board. The raw material of the honeycomb paper board is applied to a conventional production process after waterproof and flame-retardant treatment, and the produced waterproof flame-retardant honeycomb paper board has good waterproof and heat-insulating effects, can also be recycled to reduce environment pollution, realize material saving, wood replacement, replacement of plastics with paper, and reduce material manufacturing costs, and is green and environment-friendly.

The invention is a waterproof, heat-insulating and flame-retardant coating, including auxiliary and basal material; the main material has the components in weigh share: pentaerythritol 5-16 weight shares, antimonous oxide 0.2-6 weight shares, chloroparaffin 0.2-6 weight shares, mica 2-20 weight shares, and sepiolite 2-20 weight shares; the main material also includes melamine 1-11 weight shares, and ganister sand 0.3-7 weight shares; the main material also includes ammonium phosphate 1-18 weight shares, and perlite 5-40 weight shares. The invention has no toxicity and flavor, safety and environmental protection, stable properties, and remarkable water-proofing, heat-insulating and flame-retardant effects, and can be widely applied to walls, roofs, floors, basements, pipelines, wood plates, and metals.

The invention discloses a preparation method of a novel waterproof fire-resistant textile. The preparation method comprises the following steps: pretreating a textile; performing plasma treatment on the pretreated textile; preparing a waterproof fire-resistant finishing agent; soaking the textile which is subjected to the plasma treatment into the prepared waterproof fire-resistant finishing agent; soaking twice and rolling twice in a rolling rate of 80%; taking out the textile; washing 2-3 times by using fresh water; drying; and baking to obtain the waterproof fire-resistant textile. The waterproof fire-resistant textile disclosed by the invention is excellent in waterproofness and fire resistance, soft, comfortable, free of peculiar smell, good in washing fastness, free of toxic substances and safe to the human body.

The invention discloses a polyurethane waterproof flame-retardant paint and a preparation method thereof. The paint comprises polyurethane prepolymers, diacetone acryloamide, buty stearate, titanate coupling agent TMC-311 and titanium pigment. The paint further comprises polydimethyl siloxane, white carbon black, mixed solvent and flame-retardant materials. The preparation method comprises the following steps: dissolving the diacetone acrylamide by ethanol of which the volume concentration is 65-80%, wherein the adding amount of the ethanol is 1.5 kilograms in per kilogram of diacetone acrylamide on the basis of weight; mixing the dissolved diacetone acrylamide with the polyurethane prepolymers in a reaction kettle, wherein the reaction temperature is 75-119 DEG C and the reaction time is 1.2-1.5 hours; adding the titanate coupling agent TMC-311 into the mixture and further reacting for 3-6 hours; then adding buty stearate, the rutile-type titanium pigment, polydimethyl siloxane, the flame-retardant materials, the white carbon black and the mixed solvent into the mixture and uniformly mixing, so that the polyurethane waterproof flame-retardant paint product is obtained. The paint prepared by the preparation method is good in waterproof and flame-retardant effects, friendly to the environment and not easy to age.

The invention discloses environment-friendly internal wall paint and a preparation method thereof. The paint is prepared from the following raw materials including styrene-acrylic emulsion, polyvinyl alcohol resin, silica sol, sodium naphthenate, polyoxyethylene, talcum powder, modified diatomite powder, rosin glycerin ester, polyvinyl alcohol, dispersing agents, wetting agents, leveling agents, defoaming agents and coalescing agents. According to the preparation method, firstly, water is added into the styrene-acrylic emulsion, the polyvinyl alcohol resin, the silica sol, the talcum powder and the modified diatomite powder; uniform mixing is performed to obtain slurry A; then, the sodium naphthenate, the polyoxyethylene, the rosin glycerin ester and the polyvinyl alcohol are added into slurry A to be uniformly mixed for obtaining slurry B; finally, the rest raw materials are added into the slurry B. The environment-friendly internal wall paint has the advantages that the preparation is simple and convenient; green and environment-friendly effects are achieved; harmful substances such as formaldehyde are not contained; in addition, the bonding force is strong; the wiping-resistant performance, the waterproof and flame-retardant performance and the leveling performance are good; the cost is low; the shelf life is long; the paint belongs to a new generation of internal wall paint environment-friendly products.

The invention relates to waterproof flame-retardant paint used for corrugated paperboard and a production method of the waterproof flame-retardant paint used for the corrugated paperboard. The waterproof flame-retardant paint comprises water and the following components in percentage by weight: 48%-52% of organosilicone-modified polyurethane aqueous dispersion, 10%-12% of ammonium polyphosphate, 5.0%-6.0% of a melamine phosphate, 5.0%-6.0% of pentaerythritol, 4.0%-5.0% of isopropanol, 3.0%-3.5% of isopropanol silica sol, 1.5%-1.8% of methyltrimethoxysilane, 0.1%-0.2% of nonylphenol polyoxyethylene ether and 0.5%-1.0% of assistants. Under situations of a thin coating and low coating weight, the waterproof flame-retardant paint improves the mechanical strength and the mechanical performanceof the corrugated paperboard; the corrugated paperboard can reach a flame-retardant grade, and fire-proofing and flame-retardant effects are obvious; and a water contact angle of the surface of a filmreaches 120 degrees or above, so that the corrugated paperboard has good dampproof and waterproof properties.

A water-proof fire-retarding color paint for building contains pentaerythritol, melamine, silicon stone powder, Sb2O3, chlorinated paraffin wax, disperser, cellulose, solvent, antifreezing agent, defoaming agent, emulsifier, emulsion and pigment slurry. Its advantages are no poison and odor, high stability and elasticity, and high effect.

The invention discloses a foamed glass insulation board for buildings, and a preparation method thereof. The foamed glass insulation board comprises an unfired foam glass insulation board base body, which comprises, by weight, 20-30 parts of glass powder; 20-45 parts of cement; 2-5 parts of a nanoscale inorganic porous material; 4-8 parts of polypropylene chopped fibers; 5-10 parts of a water-soluble polyester resin; 5-10 parts of water-soluble acrylic resin; and the balance of water, wherein the cement can be subjected to polymerization reaction with the glass powder, the nanoscale inorganicporous material is used as a foaming enhancer, and the water-soluble polyester resin and the water-soluble acrylic resin are subjected to cross-linking reaction in the foaming process of polymerization of the glass powder and the cement, so that the compactness and the mechanical strength of the baking-free foamed glass insulation board matrix are improved. According to the invention, on the premise of having excellent heat preservation and fireproof performance, the foamed glass insulation board is low in manufacturing cost and light in weight, high-temperature sintering is not needed in thepreparation process, energy consumption is greatly reduced, and the building material conforms to the technical development direction of energy conservation and low-carbon management of building materials.

The invention belongs to the field of interior decoration plates and discloses a three-layer thick-core plywood which sequentially comprises a face plate, a core plate and a bottom plate from top to bottom, wherein the panel, the core plate and the bottom plate are hot-pressed by virtue of adhesives; the core plate is formed by hot-pressing three intermediate plates by virtue of adhesives. The plywood is of a three-layer thick-core structure, and the stable environment-friendly adhesives are adopted among the three layers, so that environment pollution is avoided, and the performance and market competitiveness of the plywood are improved.

The invention relates to a solid wood parquet wall decoration board. The solid wood parquet wall decoration board is formed by a solid wood veneer surface layer and a cement-fiber board bottom layer through compounding of PUR high-strength viscosity waterproof bonding glue; the solid wood veneer surface layer is characterized in that a veneer is subject to high temperature carbonization anticorrosion and mothproofing treatment, and is then subject to fire retardant vacuum impregnation treatment and drying, and then the veneer is pressed and pasted to at least one surface of a cement-fiber board through the PUR high-strength viscosity waterproof bonding glue; and the cement-fiber board is prepared through die pouring under the high pressure after cement, wood fibers and paper fibers are mixed, the cement-fiber board is an environment-friendly fire retardant cement-fiber board containing no asbestos and glass fibers, the thickness of the solid wood veneer surface layer is 0.35 mm to 4 mm, the surface board is subject to high temperature carbonization, water removing and fire retardant treatment, and the thickness of the cement-fiber board bottom layer is 4 mm to 6 mm. The solid woodparquet wall decoration board has the beneficial effects that the structure composition is simple, manufacturing is convenient, the manufacturing cost is low, the waterproof fire retardant effect is good, and the solid wood parquet wall decoration board can be matched with indoor and outdoor luxury decoration effect.

The invention discloses an easily degradable mineral fiber-filled foam stone corrugated paper core and a preparation method thereof, and is characterized in that the paper core is prepared from the following raw materials in parts by weight: 1-2 parts of chitosan, 15-20 parts of calcium carbonate, 1-2 parts of starch, 16-19 parts of diatomite, 15-20 parts of wollastonite, 30-40 parts of polyethylene, 0.5-1 part of azodicarbonamide, 1-2 parts of glyceryl stearate, 55-65 parts of a rosin alcohol solution, 30-40 parts of a polytetrafluoroethylene emulsion, 3-5 parts of Mg(OH)2, 5-10 parts of a polyacrylate emulsion, 30-40 parts of dilute sulfuric acid, 1-2 parts of sodium dodecyl sulfate, and 5-10 parts of ethanol. The prepared stone corrugated paper core has the characteristics of uniform and fine pores and light weight, improves waterproof and flame retardant properties, and moisture-proof and antibacterial properties, and can be better applied to the packaging field; with cooperation of the added chitosan, the prepared corrugated paper core has the characteristic of easy degradation.

Disclosed are a flame-retardant modified bitumen waterproof coiled material coating material and a flame-retardant self-adhesive bitumen waterproof coiled material and preparation method thereof. Thewaterproof coiled material includes a metal glass fiber grid composite flame-retardant layer, a flame-retardant modified asphalt layer, a glass fiber tire flame-retardant layer, a flame-retardant self-adhesive asphalt layer, and an isolation layer that are sequentially arranged from top to bottom. The invention is thin and adapts to the trend of building energy saving and carries out cold self-adhesive construction, and has high bonding strength and good heat resistance. There is no need to use open flame for construction. Construction is convenient, safe and environmentally friendly. The invention has excellent waterproof and flame-retardant performance, is multi-layer synergistic flame-retardant, has fire-proof grade B1, and stops burning after leaving the fire source. The invention is especially suitable for building waterproofing with high waterproof requirements and can be flame-retardant from the inside to the outside and from the outside to the inside. It has excellent flame retardant performance and wide application prospects.

The invention discloses a mineral-fiber-filled waterproof flame-retardant foaming stone corrugated paper element and a preparation method thereof. The mineral-fiber-filled waterproof flame-retardant foaming stone corrugated paper element is characterized by being prepared from the following raw materials in parts by weight: 15 to 20 parts of calcium carbonate, 15 to 20 parts of diatomite, 15 to 20 parts of aedelforsite, 30 to 40 parts of polyethylene, 0.5 to 1 part of azodicarbonamide, 50 to 60 parts of a rosin alcohol solution, 30 to 40 parts of polytetrafluoroethylene emulsion, 3 to 5 parts of magnesium hydroxide, 5 to 10 parts of polypropylene, 30 to 40 parts of dilute sulfuric acid, 1 to 2 parts of sodium dodecyl sulfate and 5 to 10 parts of ethanol. The stone corrugated paper element prepared by the method provided by the invention has the characteristics of uniform and fine air holes and light weight, improves water-proof and flame-retardant properties and moisture-proof and antibacterial properties, and can be applied in the field of packaging well.

The invention discloses a preparation method of waterproof flame-retardant textiles. The method comprises the following steps: pretreating the textiles; subjecting the pretreated textiles to plasma treatment; preparing a waterproof flame-retardant finishing agent, soaking the plasma treated textiles in the prepared waterproof flame-retardant finishing agent, and carrying out twice-soaking twice-rolling until the rolling remaining rate is 80%; taking out the textiles, cleaning the textiles with clean water for 2 to 3 times, carrying out drying and carrying out baking, thereby obtaining the waterproof flame-retardant textiles. The waterproof flame-retardant textiles prepared by the method have excellent waterproof and flame retardant properties, are free of off odors, good in washing resistance, free of toxic substances and safe to human bodies and are soft and comfortable.

The invention relates to a preparation method of a waterproof and flame-retardant corrugated board and the waterproof and flame-retardant corrugated board. The preparation method comprises the following steps: i) placing a waterproof and flame-retardant coating in a coating machine, and quantificationally coating one or both sides of the corrugated board, wherein the waterproof and flame-retardant coating is prepared from the following components: a silicone-modified polyurethane aqueous dispersion, ammonium polyphosphate, melamine phosphate, pentaerythritol, isopropanol, isopropanol silica sol, methyltrimethoxysilane, polyoxyethylene nonylphenol ether, auxiliaries and water; ii) drying the coated corrugated board with saturated steam at a drying temperature of 140-160 DEG C with the retention time of 8-12 s. In the case that the coating is thin and the coating amount is small, the obtained waterproof and flame-retardant corrugated board has good mechanical strength and mechanical properties; a flame retardant level is reached, and the fire-proof and fire-retardant effects are obvious; the water contact angle of a coating film surface reaches 120 degrees or above, so that good moisture resistance and water resistance are realized.

The invention relates to an air conditioner air port noise reduction structure. The air conditioner air port noise reduction structure comprises a vehicle body and a draught fan assembly arranged on the outer side of the top of the vehicle body, the vehicle body is provided with an air return port, an air outlet, and a closed frame body between the draught fan assembly and the corresponding air outlet and / or between the draught fan assembly and the corresponding air return port, the closed frame body is made of a sound absorption material, and the closed frame body forms an airflow channel. The closed frame body is arranged between the draught fan assembly and the air outlet and / or between the fan assembly and the air return port of the air conditioner air port noise reduction structure, so that not only is the sealing effect achieved, but also the influence on airflow resistance at the air outlet and / or the air return port is small. The closed frame body is made of the sound absorption material, the sound absorption material can absorb noise generated by the draught fan assembly, and radiation of the noise generated by the draught fan assembly to the interior of a compartment is reduced.

The invention discloses an anti-aging mineral fiber filled foaming stone corrugated paper core and a preparation method thereof. The anti-aging mineral fiber filled foaming stone corrugated paper core is characterized by being prepared from, by weight, 15-20 parts of calcium carbonate, 1-2 parts of nano titanium dioxide, 15-20 parts of diatomite, 1-2 parts of antioxidant DNP, 15-20 parts of wollastonite, 30-40 parts of polyethylene, 0.5-1 part of azobisformamide, 1-2 parts of glutinous rice powder, 50-60 parts of rosin alcohol solution, 30-40 parts of polytetrafluoroethylene emulsion, 3-5 parts of Mg(OH)2, 5-10 parts of polyacrylate emulsion, 30-40 parts of dilute sulphuric acid, 1-2 parts of sodium dodecyl sulfate and 5-10 parts of ethanol. The prepared stone corrugated paper core has the advantages of being provided with uniform and fine pores and being light in mass, improves the waterproof, flame-retardant, moisture-proof and antimicrobial properties of the paper core, can be better applied to the field of packaging. The matched antioxidant is added to a coating, and the anti-aging properties of corrugated paper are improved.

The invention discloses a lightweight gypsum board with an electromagnetic shielding function and a preparation method thereof and relates to the technical field of gypsum board construction materials. The gypsum board comprises the following raw materials: gypsum powder, fillers and additives. The preparation method comprises the following steps: mixing, ball-milling and stirring the raw materials, aging, molding, curing and the like. The gypsum board disclosed by the invention is simple and convenient in preparation, excellent in comprehensive performance and excellent in application property and has excellent electromagnetic shielding property.

The invention discloses a waterproof flame-retardant sealing coating and a preparation method thereof. The sealing coating is prepared from the following raw materials in parts by weight: 70 to 90 parts of water, 50 to 70 parts of ethyl acrylate, 15 to 25 parts of titanium dioxide, 20 to 40 parts of bentonite, 10 to 20 parts of calcium carbonate, 15 to 25 parts of talcum powder, 5 to 7 parts of a DA type dispersing agent, 3 to 5 parts of a coalescing agent, 1 to 2 parts of an antifoaming agent and 2 to 4 parts of methyl acrylate and butyl acrylate together, wherein the mass ratio of methyl acrylate to butyl acrylate is (1 to 3): 1. The sealing coating provided by the invention is high in flame-retardant property and high in corrosion resistance, is unlikely to fall off, and can generate a long-lasting waterproof sealing effect. The technical effects of the coating disclosed by the invention are possibly related to the mass ratio of methyl acrylate to butyl acrylate in the raw materials, and when the mass ratio of methyl acrylate to butyl acrylate is (1 to 3): 1, the waterproof flame-retardant sealing performance is the best.

The invention discloses a waterproof flame-retardant sealing coating and a preparation method thereof. The waterproof flame-retardant sealing coating is prepared from the following raw materials in parts by weight: 70-90 parts of water, 50-70 parts of ethyl acrylate,15-25 parts of titanium dioxide, 20-40 parts of bentonite, 10-20 parts of calcium carbonate, 15-25 parts of talcum powder, 5-7 parts of a DA dispersing agent, 3-5 parts of a filming additive, 1-2 parts of a defoaming agent and 2-4 parts of methylparaben and propylparaben, wherein the weight part ratio of methylparaben to propylparaben is (1-3):1. The waterproof flame-retardant sealing coating disclosed by the invention is high in flame retardancy, good in corrosion resistance, unlikely to peel off and long-lasting in waterproof sealing effect. The technical effect of the waterproof flame-retardant sealing coating disclosed by the invention is possibly related to the weight part ratio of methylparaben to propylparaben in the raw materials, and the waterproof flame-retardancy property is the best when the weight part ratio of methylparaben to propylparaben is (1-3):1.

The invention relates to a noise reduction structure of an air conditioning system. The noise reduction structure of the air conditioning system comprises a vehicle body and a draught fan assembly arranged on the outer side of the top of the vehicle body, and a noise blocking piece used for blocking noise generated by the draught fan assembly is arranged between the draught fan assembly and the top of the vehicle body. According to the noise reduction structure of the air conditioning system, noise generated by operation of the draught fan assembly is blocked through the noise blocking piece arranged between the top of the vehicle body and the draught fan assembly, the noise is prevented from being transmitted into the compartment from the top of the vehicle body and the framework, vibration and noise in the compartment are greatly reduced, and the comfort degree of the whole vehicle is improved.

The invention relates to the technical field of computer cables and discloses a common-mode interference reduction type transmission cable for computers. The cable comprises an anti-interference layer, and the anti-interference layer is prepared from natural rubber, TPE resin, a styrene-butadiene segmented copolymer, polyether urethane in molecular weight of 600-700, ATO slurry, aluminized glass fibers, nano aluminum nitride powder, erucylamide, diphenyl phosphate, zinc borate, a plasticizer, a coupling agent and an antioxidant. The anti-interference layer of the cable is simple and convenientto prepare, low cost, environmental friendliness, stability in physical and chemical property, long service life, safety and reliability are achieved, and common-mode interference reduction and electromagnetic radiation shielding can be realized.

The invention relates to the technical field of furniture material performance research, and discloses a method for improving the durability of fast-growing wood furniture. The method comprises the following steps: preparing a fast-growing wood dipping treatment solution from a prepared silane modified polyether emulsion and a silica sol, then carrying out a hydrothermal pressure impregnation reaction so as to obtain modified fast-growing wood which is excellent in aging resistance and mechanical strength, and carrying out further processing so as to prepare wooden furniture. According to thetreatment method, the fast-growing wood has excellent properties of wear resistance, compression resistance, corrosion resistance, water resistance, aging resistance, stable physical and chemical properties and the like, can be widely applied to production of various furniture, and has excellent processing performance; and the method can well solve the problems that the fast-growing wood in the furniture field is common in processing and using performances and has a plurality of defects in processing and application, improves the strength performance of a fast-growing wood material, achieves good effect in a plurality of aspects, relieves the supply and demand contradiction of the wood, and realizes highly-efficient utilization of the fast-growing wood.

The invention discloses a novel waterproof flame-retardation plastic cement material. The novel waterproof flame-retardation plastic cement material comprises the following raw materials in parts by weight: 70-95 parts of polyethylene, 30-42 parts of propenyl bisstearamide, 20-30 parts of acrylate, 15-27 parts of nylon fiber, 11-17 parts of nano diatomite, 10-20 parts of an acrylic emulsion, 2 to6 parts of polyether glycerol, 8-15 parts of aromatic oil, 2-6 parts of zinc oxide, 5-10 parts of activated alumina, 4-12 parts of a filler, 3-5 parts of mica powder, and 7-10 parts of nano calcium carbonate and 2-6 parts of an anti-oxidant. The material has excellent waterproof and flame retardant performance, has good strength and good chemical stability, has long service life, has little influence on the environment, and has small soil pollution.

The invention discloses a waterproof and anti-deformation easily recyclable corrugated cardboard box, which comprises an outer paper layer, a first corrugated layer, a plastic layer, a second corrugated layer and an inner paper layer fixed sequentially from the outside to the inside, and the plastic layer includes the first corrugated layer. A plastic plate and a second plastic plate fixed on the surface of the first plastic plate, the surface of the first plastic plate is evenly distributed with a number of circular grooves, the circular grooves are filled with desiccant, and the bottom of the circular grooves is provided with a second A circular through hole, a second circular through hole communicating with the first circular through hole is opened on the surface of the second plastic plate. The corrugated box of the present invention is provided with a plastic layer in the two corrugated layers, and a groove is arranged in the plastic layer, and the groove is filled with a desiccant, which can play a certain role on the corrugated box, and the plastic layer of the discarded corrugated box It can be recycled, and the desiccant in the plastic layer can be reused after drying in the drying oven, which saves the cost of use. At the same time, the plastic layer has certain mechanical strength and strong toughness, which can effectively prevent the bending and deformation of the corrugated cardboard.

The invention discloses a waterproof coating for an electronic product and a preparation method thereof. The waterproof coating comprises the following materials in parts by weight: 40-60 parts of phenolic resin, 10-20 parts of polycarbonate, 2-10 parts of sodium fluosilicate, 5-10 parts of bentonite, 1-6 parts of hollow glass beads, 3-8 parts of fly ash, 2-6 parts of gypsum powder, 3-10 parts of acrylic emulsion, 0.2-0.8 part of leveling agent, 0.5-2.5 parts of defoaming agent and 0.1-0.6 part of stabilizer. The waterproof coating disclosed by the invention has strong compression resistance and splitting resistance, is strong in hardness, high in wear resistance and strong in corrosion resistance, and not only can prevent water, but also can resist other types of corrosive reagents so as to protect the internal precise structure of the electronic product and prolong the service life of the electronic product.

The invention discloses a common-mode radiation resistant cable material for computers and a preparation method thereof, and relates to the technical field of computer cables. The cable material comprises the following raw materials: chlorinated polyethylene rubber, PBT resin, an acrylonitrile-butadiene-styrene copolymer, ZAO slurry, iron oxide powder, modified graphene, chlorinated paraffin, silicone master batch, ferrocene, trioctyl trimellitate, hindered phenol, t-butyl aryl phosphate, an aluminium-zirconium bimetallic coupling agent, a cross-linking agent, a promoter and an anti-aging agent. The preparation method comprises steps of mixing of the raw materials, extruding and granulation and the like. The cable material is convenient to prepare, is low-cost, is green and environmentally-friendly, has excellent functions of common-mode radiation resistance and resistance to electromagnetic interference, has stable and excellent physical and chemical properties, has long service life,and is safe and reliable.

The invention discloses an anti-cracking mineral-fiber-filled foamed stone corrugating medium and a preparation method thereof. The invention is characterized in that the corrugating medium is prepared from the following raw materials in parts by weight: 2-4 parts of polyoxyethylene, 15-20 parts of calcium carbonate, 1-2 parts of solid paraffin, 15-20 parts of diatomite, 15-20 parts of wollastonite, 30-40 parts of polyethylene, 0.5-1 part of azobisformamide, 1-2 parts of nylon fiber, 50-60 parts of rosin alcohol solution, 30-40 parts of polytetrafluoroethylene emulsion, 3-5 parts of Mg(OH)2, 5-10 parts of polyacrylate emulsion, 30-40 parts of dilute sulfuric acid, 1-2 parts of sodium dodecylsulfate and 5-10 parts of ethanol. The stone corrugating medium has the characteristics of uniform and thick pores, light weight, higher water resistance, higher flame retardancy, higher moisture resistance and higher antibacterial performance, and thus, can be better applied to the field of packaging. The added polyoxyethylene enhances the anti-cracking performance of the corrugating medium.

The invention belongs to the field of interior decorating boards, and discloses a double-layer oriented strand laminated plywood. The double-layer oriented strand laminated plywood is respectively composed of a face board, a core board and a bottom board from top to bottom, which are hot-pressed through an adhesive. The core board is formed by carrying out hot pressing on two intermediate boards through an adhesive. The plywood adopts the double-layer oriented strand laminated structure; and the adhesive with stable service performance is used between every two adjacent layers, has the advantages of high adhesive force, environment friendliness and no pollution, and enhances the properties and market competitiveness of the plywood.