55results about "Coating impregnation" patented technology

The invention discloses a smoke-suppression flame-retardant ecological board and a preparation method thereof. The ecological board comprises a base material, a flame-retardant adhesive layer and a facing layer which are sequentially stacked, wherein the flame-retardant adhesive layer is prepared from the following raw materials: 100 parts of urea-formaldehyde resin, 10-15 parts of a phosphorus-nitrogen composite flame retardant and 5-10 parts of flame-retardant filler; the preparation method of the phosphorus-nitrogen composite flame retardant comprises the following steps: carrying out an aminomethylation reaction on p-hydroxybenzoic acid, ethanolamine and paraformaldehyde which are used as raw materials in a molar ratio of 1: (1-1.2): (2-2.2) to prepare a Mannich base intermediate; and carrying out substitution reaction on the Mannich base intermediate and phosphonitrilic chloride trimer serving as raw materials according to the molar ratio of (3-7): 1. The phosphorus-nitrogen flame retardant disclosed by the invention is high in content of phosphorus and nitrogen elements and uniform in distribution ratio, and has more excellent synergistic smoke suppression and flame retardant effects compared with an existing physical compound system.

The invention relates to an antibacterial and mildew-proof wood-bamboo scrimber and a preparation method thereof. According to the preparation method, the pretreated wood-bamboo veneer is defibered through sodium hydroxide and hydrogen peroxide, so that part of starch and carbohydrates can be removed, and mildew is reduced. The prepared inorganic-organic antibacterial and mildewproof composite additive not only realizes a synergistic antibacterial and mildewproof effect and reduces the usage amount, but also realizes broad-spectrum antibacterial effect on bacteria and fungi. The prepared fibrillated wood-bamboo veneer is subjected to alkali / thiourea low-temperature treatment, cellulose can be promoted to be dissolved and regenerated under the action of acid, cellulose fibrils are formed on the surfaces of fibers, the specific surface area is increased, meanwhile, stable coating of the inorganic-organic antibacterial mildew-proof composite additive is improved, and in the pressurizing and forming process, the specific surface area is increased. And antibacterial and mildew-proof effective components are prevented from being lost, and a lasting effect is achieved. The antibacterial and mildew-proof wood-bamboo scrimber prepared by the preparation method disclosed by the invention not only is good in mechanical property, but also has outstanding and long-term antibacterial and mildew-proof properties.

The invention relates to the technical field of wood modification, in particular to a preparation method of organic silicon modified super-hydrophobic wood. The preparation method of the organic silicon modified super-hydrophobic wood comprises the following steps: preparing hydrophobic silicon dioxide sol, preparing organic silicon modified liquid, dipping the wood in the hydrophobic silicon dioxide sol for multiple times, spraying the organic silicon modified liquid on the surface of a wood matrix, and curing at normal temperature. According to the organosilicone modified super-hydrophobic wood, a multifunctional hydrophobic coating is constructed on the surface of the wood by adopting a dip coating process, and the organosilicone modified super-hydrophobic wood has the advantages of simple equipment and preparation process, low energy consumption, short reaction period, high curing efficiency, mostly non-toxic modifier and the like, and is suitable for being applied to preparation of large-area hydrophobic / super-hydrophobic wood.

The present application relates to the technical field of wood processing machinery, and discloses a fireproof and high-temperature-resistant oriented strand board paving device, which comprises a base and a liquid storage tank, the top of the base is fixedly connected with a paving bin, the top of the paving bin is fixedly connected with a second processing bin, the top of the second processing bin is fixedly connected with a first processing bin, the top of the first processing bin is provided with a discharging bin, the top of the base is provided with a conveying belt, the outside of the paving bin is fixedly connected with a fourth motor, the output end of the fourth motor is fixedly connected with a loosening roller, and the inside of the second processing bin is provided with a screening assembly. The fire-retardant additive in the liquid storage tank is uniformly sprayed onto the surface of the shavings through the spray head, the memory alloy heat-sensitive block of the fire-retardant assembly in the conveying roller senses the temperature and automatically releases the fire extinguishing agent, the raw material modification and the production process safety protection double fireproof design are formed, and the fireproof and high-temperature-resistant performance of the oriented strand board product is improved.

The utility model discloses a continuous bamboo heating and spraying device which comprises a machine frame, a conveying mechanism is arranged on the machine frame, a heating mechanism and a spraying mechanism are sequentially arranged in the conveying direction of the conveying mechanism, and the heating mechanism comprises heat conduction pipes arranged above and below the conveying mechanism respectively. Materials are heated by the upper heat conduction pipes and the lower heat conduction pipes when being placed on the conveying mechanism to be conveyed, the spraying mechanism comprises a plurality of spraying pipes which are arranged on the upper portion at intervals in the width direction, and when the materials are conveyed to pass through the spraying mechanism, the spraying pipes on the upper portion spray mildew preventive. The surface of the bamboo product is preheated through automatic conveying, then mildew preventive is sprayed, the absorption efficiency of the bamboo product to the mildew preventive can be remarkably improved, and the mildew prevention performance of the bamboo product can be improved; the whole processing procedures are few, the automation degree is high, manpower is saved, efficiency is improved, and the quality of bamboo products is improved.

The application discloses a high-efficiency dehydration protection method for water-saturated wooden cultural relics, and specifically comprises the following steps: step 1, preparing a xylitol aqueous solution with a concentration of 30-80 wt%; step 2, soaking the water-saturated wooden cultural relics in the xylitol aqueous solution prepared in step 1 until the xylitol permeates into the water-saturated wooden cultural relics; step 3, taking out the water-saturated wooden cultural relics and removing the excess xylitol on the surface of the water-saturated wooden cultural relics; step 4, spraying a chitosan aqueous solution with a concentration of 1-5 wt% on the surface of the water-saturated wooden cultural relics treated in step 3 for multiple times; and step 5, spraying a glutaraldehyde aqueous solution with a concentration of 2-10 wt% on the surface of the water-saturated wooden cultural relics treated in step 4 for multiple times, then wrapping the water-saturated wooden cultural relics with a breathable film, and airing the water-saturated wooden cultural relics until the constant weight of the water-saturated wooden cultural relics is reached, thereby completing the dehydration and shaping of the water-saturated wooden cultural relics.

The present invention discloses a wood antiseptic and flame retardant and its application in wood antiseptic and flame retardant, which comprises petal-shaped micro-nano basic magnesium carbonate and tung oil, and the petal-shaped micro-nano basic magnesium carbonate and tung oil are in a volume ratio of 1:3 to 1:20 of the materials; during use, after grinding the petal-shaped micro-nano basic magnesium carbonate to a preset particle size, the petal-shaped micro-nano basic magnesium carbonate and tung oil are mixed according to a volume ratio of 1:3 to 1:20 of the materials; the mixed materials are applied to the wood, and then the wood is dried to obtain antiseptic and flame retardant wood. The wood antiseptic and flame retardant of the present invention only contains two components, namely tung oil and petal-shaped micro-nano basic magnesium carbonate. By coating the wood with the wood antiseptic and flame retardant, the wood can have the antiseptic property originally endowed by tung oil while greatly improving its flame retardancy, reducing the smoke production rate, and realizing the green environmental protection of the materials used without adding too many chemical components.

The utility model discloses an anti-corrosion and anti-moth processing device for shaving board manufacturing, which relates to the technical field of anti-corrosion and anti-moth for shaving board manufacturing and comprises a supporting leg, a swinging unit is arranged on the top surface of the supporting leg, an adjusting unit is arranged on one side of the swinging unit, and a material conveying unit is arranged on the top surface of the swinging unit. A mixing unit is arranged in the material conveying unit, the swinging unit comprises a spraying box, the spraying box is fixedly connected to the inner sides of the top surfaces of the supporting legs, a bidirectional motor is fixedly connected to the inner side face of the spraying box, the output end of the bidirectional motor is in transmission connection with a half gear, and one side of the half gear is in meshed connection with a gear. Through the arrangement of the spraying box, the bidirectional motor, the half gear, the gear, the connecting pipe and the spraying pipe, the spraying uniformity of the spraying pipe for spraying the anti-corrosion and mothproof materials is improved, the protection of the shaving board and the covering uniformity of the anti-corrosion and mothproof materials are further improved, and the service life of the shaving board is prolonged.

The utility model discloses a solid wood board wood wax oil smearing machine, which belongs to the technical field of solid wood board wood wax oil smearing machines, and comprises a working table and a detachable roller assembly, and the detachable roller assembly is arranged at the upper end of the working table. By arranging the roller, the cover bodies, the inserting blocks, the inserting grooves, the material storage box and the guide pipe, when people need to replace the roller to be suitable for plates of different sizes, people only need to separate the two cover bodies from the first fixing block and the second fixing block, pull the roller out of the cover bodies on the two sides, insert the roller needing to be replaced into the inserting grooves through the inserting blocks, and then replace the plates. According to the wood wax oil smearing device, through cooperation of an insertion block and an insertion groove, people can conveniently replace a proper roller, plates of different sizes can be conveniently smeared, then through cooperation of a storage box and a guide pipe, wood wax oil is evenly sprayed to the roller from a discharging port, people can conveniently feed the roller, and the wood wax oil smearing efficiency is improved.

The invention relates to the technical field of bamboo product processing, in particular to a bamboo product processing method which comprises the steps that moso bamboos are transversely cut into bamboo sections, and then the bamboo sections are processed and formed to obtain bamboo blanks; bamboo fiber chippings generated during moso bamboo processing are collected, and the bamboo fiber chippings are crushed after being cleaned and subjected to impurity removal; preparing a compound liquid which comprises a compound enzyme of xylanase and cellulase, drying the bamboo blank until the water content is 10-12%, and engraving the area, needing to be subjected to laser engraving, of the bamboo blank by using a laser engraving machine; coating or spraying the composite liquid on the surface of the laser engraving area; bamboo fiber scraps in the bamboo processing process are collected, and then raw materials are crushed, so that bamboo fibers are recycled; a compound enzyme degradation product of xylanase and cellulase is used as a precursor of the repair material; the nano bamboo cellulose and the sodium hyaluronate form a net structure under the action of enzyme, and the nano bamboo cellulose is combined with the degradation product to form a new cross-linking point to fill the crack.

The utility model discloses a manual waxing device for wood product processing, which comprises an oil tank, the upper end of the oil tank is connected with a handle, the upper end of the oil tank is also provided with an oil adding port, the oil adding port is in threaded connection with a cover body, the lower end of the oil tank is provided with an oil outlet, an oil sealing roller is rotatably arranged in the oil outlet, and the lower end of the oil tank is also rotatably connected with a rolling brush. And the rolling brush is tangent to the oil sealing roller. Due to the fact that the oil tank containing wax oil is arranged, the rotatable oil sealing roller is arranged in the oil outlet of the oil tank, and the rolling brush is tangent to the oil sealing roller, during waxing operation, the oil sealing roller is driven to rotate through rotation of the rolling brush, the wax oil is attached to the rolling brush to conduct waxing operation on wood products, frequent dipping of the wax oil is not needed, and the waxing efficiency is improved. The labor intensity is reduced, and the working efficiency is improved.

The invention relates to the technical field of vehicle frames, in particular to a manufacturing method and application of a modified bamboo vehicle frame, and the manufacturing method comprises the following steps: firstly, selecting moso bamboo and hardwood which are 3-5 years old, cutting, cooking, drying and polishing; secondly, a modifier is prepared, and the bamboo materials are soaked and then dried; secondly, preparing an epoxy resin matrix, and performing compression molding and curing by adopting a vacuum-assisted resin transfer process; and then, a mortise and tenon joint structure is designed, and stress nodes are locally reinforced. And finally, the surface of the frame is polished, and waterborne polyurethane varnish is coated and baked. According to the method, the strength and durability of the bamboo frame are improved, the bending strength, the elastic modulus, the impact toughness and the like of the bamboo frame manufactured through the method are remarkably improved compared with those of a traditional method, the requirement of a high-performance bicycle is completely met, the gradient reinforcement concept is adopted at key nodes, and the strength and durability of the bamboo frame are improved through local thickening and directional carbon fiber reinforcement. Progressive transmission of stress is achieved, and the fatigue life of the frame is greatly prolonged.

The application discloses an environment-friendly formaldehyde-free flame-retardant density board, which comprises a board body and a coating plate, a plurality of fixing grooves are formed in the end face and the side wall of the board body, the fixing grooves are symmetrically arranged in pairs, two groups of sliding grooves are formed in the end face of the board body, and the sliding grooves are respectively communicated with the adjacent fixing grooves; and a preparation method of the environment-friendly formaldehyde-free flame-retardant density board is also provided, which comprises the following steps: S1, base material layer preparation, S2, flame-retardant layer preparation and coating, S3, coating plate preparation, and S4, board overall assembly. According to the application, the coating plate and the board body are designed as a separable structure, so that when the coating is damaged or worn, only the coating plate needs to be replaced, the whole board body does not need to be replaced, the cost of maintenance and replacement is effectively reduced, the replacement time is shortened, the maintenance efficiency is improved, and the high cost and the complicated process of replacing the whole board are avoided.

The present application relates to the technical field of surface treatment agent diluents, and in particular to a furniture wood surface treatment agent and a preparation method thereof. A furniture wood surface treatment agent comprises the following raw materials in parts by mass: 74-80 parts of acetates, 14-18 parts of ethyl esters, and 9.5-10.5 parts of ethanol. The surface treatment agent is brushed on the surface of a furniture wood product with a residence time of 22-24 minutes, and then the residual surface treatment agent on the surface of the furniture wood product is blown clean with an air gun. The present application accurately controls the amount of ethanol added and the residence time of the surface treatment agent on the wood surface. The furniture wood surface treatment agent of the present application can effectively improve the appearance of the wood, so that it has better texture clarity and three-dimensional sense, and can maintain the strength and stability of the wood, thereby improving the quality and decorative effect of the product.

The invention discloses a coconut shell structure imitating wood buffer material and a preparation method and application thereof.The preparation method comprises the following steps that wood is subjected to delignification treatment and soaked in water, and treated wood is obtained; the end face of the treated wood is subjected to end sealing treatment, and a sodium silicate solution is added for primary dipping treatment; and removing the end sealing material on the end surface of the impregnated wood, adding a polyvinyl alcohol solution, carrying out secondary impregnation treatment, and drying to obtain the wood buffer material with the imitated coconut shell structure. The wood buffer material with the imitated coconut shell structure has the advantages of light weight, high strength, good toughness, excellent buffer performance, excellent flame retardant property, good water resistance and the like, can replace a polystyrene foam material, and is widely applied to the field of product packaging.

The invention belongs to the technical field of wood processing, and relates to a surface modified bamboo nail and a preparation method and application thereof. In the prior art, bamboo nails are easy to break and split when being pneumatically injected into wood, and the injection performance is poor; in order to solve the technical problems of insufficient connection stability after injection, rapid reduction of pulling resistance due to great environmental influence and serious influence on use durability in the prior art, the invention provides a surface modified bamboo nail which comprises a bamboo nail base body, the composite coating is formed by compounding waterborne polyurethane and intercalated zirconium phosphate nanosheets, the intercalated zirconium phosphate nanosheets are evenly dispersed in the waterborne polyurethane according to the mass fraction of 3%-5%, the surface of the bamboo nail base body is evenly covered with the coating, and the thickness ranges from 35 micrometers to 40 micrometers; the overall density of the surface modified bamboo nail ranges from 0.87 g / cm < 3 > to 0.95 g / cm < 3 >, the surface modified bamboo nail is distributed in a step-shaped decreasing mode from the surface layer to the interior, the injection performance is excellent, and connection is stable. Furthermore, the invention further provides a preparation method of the surface modified bamboo nail. Meanwhile, the invention further provides application of the surface modified bamboo nail.

The present invention relates to a method of producing a wood and textile fibre protection composition from tall oil pitch. The present invention also relates to a wood and textile fibre protection composition comprising tall oil pitch and use of the composition as a wood and textile fibre protection agent.

The present invention relates to a wood adhesive and a method for preparing wood with flame retardant, hydrophobic and self-adhesive properties. The present invention belongs to the technical field of wood adhesives. The present invention provides a wood adhesive, comprising component A and component B, wherein component A is a chitosan solution, and component B is a soy protein isolate solution. The present invention provides a method for preparing wood, wherein the layer-by-layer self-assembly technology is adopted, and fast-growing wood is cyclically immersed in a chitosan solution and a soy protein isolate solution respectively, and after drying, the surface of the fast-growing wood adsorbs chitosan and soy protein isolate by electrostatic action, and the prepared wood has self-adhesive properties, and no modification or adhesive supplementation is required, and plywood can be obtained by hot pressing. The raw materials used in the present invention are all natural biomass materials, which are widely available, and the preparation process and principle are simple. While improving the hydrophobic and flame retardant properties of the wood, the preparation method of the plywood is also developed.

The application provides a preparation method of a hydrophobic anti-leaching fire-retardant plywood, comprising the following steps: (1) impregnating wood veneers in a fire-retardant liquid and a silica sol polymer resin mixed emulsion in sequence to obtain fire-retardant veneers; (2) assembling the fire-retardant veneers in a longitudinal and transverse interlaced manner to obtain a fire-retardant plywood base material; and (3) coating a hydrophobic coating on the surface of the fire-retardant plywood base material to form a hydrophobic coating layer, thereby obtaining the hydrophobic anti-leaching fire-retardant plywood. The wood veneers are impregnated in the fire-retardant liquid and the silica sol polymer resin mixed emulsion in sequence to fill the interior of the wood units, the polymer resin is used as a coating material in the silica sol, the anti-leaching performance of the fire retardant is enhanced, and the hardness and water resistance of the entire plywood are enhanced. The fire-retardant plywood base material is subjected to hydrophobic treatment, so that the plywood is endowed with self-cleaning ability, and the occurrence of adverse phenomena such as corrosion and insect damage is reduced.

The present application relates to bamboo product processing technical field, specifically to a kind of bamboo product processing method, comprising: cross bamboo into bamboo section, then bamboo section is processed into bamboo blank;Collect the bamboo fiber debris generated during bamboo processing, after washing and impurity removal, the bamboo fiber debris is crushed;Modulate composite liquid, including the composite enzyme of xylanase and cellulase, bamboo blank is dried to moisture content 10-12%, laser engraving machine is used to engrave on the area where bamboo blank needs to be laser engraved;Composite liquid is coated or sprayed on the surface of laser engraved area;The present application realizes the recovery of bamboo fiber by collecting and crushing raw materials during bamboo processing. The degradation product of the composite enzyme of xylanase and cellulase is used as the precursor of repair material. Nano-bamboo cellulose and sodium hyaluronate form a network structure under the action of enzyme, nano-bamboo cellulose combines with degradation product to form new crosslinking point and fill the cracks.

The invention discloses a wood and bamboo composite mildew preventive with thermal-alkali coupling stability and a preparation method and application thereof. According to the wood and bamboo composite mildew preventive, the oxidation resistance and thermal stability of the wood and bamboo composite mildew preventive are improved through combined use of an organic phosphoric acid antioxidant and a polymerization inhibition type thermal stabilizer; and the degradation of the wood and bamboo composite mildew preventive under the alkaline environment and high-temperature treatment is inhibited, so that the reduction of the mildew resistance of the wood and bamboo composite material added with the wood and bamboo composite mildew preventive due to a hot pressing process is reduced.

The invention relates to the technical field of flame-retardant coatings, and particularly discloses a flame retardant for transparent wood, a flame-retardant coating, a preparation method of the flame-retardant coating and fireproof transparent wood, the flame retardant for the transparent wood is characterized in that the structural general formula of the flame retardant is PAXY-M, the flame retardant is a water-soluble flame retardant, and an aqueous solution of the flame retardant is a transparent aqueous solution; m is selected from at least one of Ca < 2 + >, Co < 2 + >, Ni < 2 + >, Cu < 2 + > and Zn < 2 + >, and M is respectively coordinated with phytic acid and xylitol. The fireproof coating disclosed by the invention is high in light transmittance, and has good fireproof performance by connecting phytic acid xylitol with a metal system on the premise that the original appearance and touch of wood are not influenced, especially LOI and flame resistance are greatly improved, and the use safety of the transparent wood is further improved.

The present application relates to the field of ecological board manufacturing, and specifically discloses an ecological board production process for solving the deformation of the board, and the process is as follows: nano-modified layers are coated on both sides of the core board to modify wood fibers, and then radio frequency drying is adopted; the positions of the soft veneer board and the decorative paper on the core board are adjusted, the positioning datum is fixed, and then hot pressing and gluing are performed; after hot pressing and gluing, the ecological board is obtained by being placed in a cooling and solidifying device and gradually cooled according to a set cooling curve; and the present application adopts bio-based polyester in the selection of adhesives, such materials have excellent bonding performance and waterproofness, and can enhance the stability of the board; the surface of the board is modified by nano technology, and a core board with stable performance and excellent deformation resistance can be obtained, nano materials can form extremely fine coatings, improve the stability of the board, and reduce the dimensional instability caused by environmental changes, and improve the service life and appearance quality of the core board.

The present invention discloses a wood-based solar evaporator and a preparation method thereof. The preparation method includes: preparing a balsa wood block template DW after removing lignin; based on the balsa wood block template DW, preparing a rebuilt wood RW with a network structure formed by intertwined micro-nano fibers in the pores; mixing lignin nanoparticles LNPs with a Ti<subgt;2< / subgt;C<subgt;3< / subgt;T<subgt;x< / subgt; suspension to prepare a photothermal material LMX; and coating the photothermal material LMX on the surface of RW to obtain the wood-based solar evaporator. The wood-based solar evaporator of the present invention can enhance the streaming potential while improving the evaporation rate, and can be applied in seawater desalination and / or power generation devices.

The present invention relates to the field of functional wood materials, and discloses a super-hydrophobic wood, a preparation method thereof, and a composite suspension. The components of the composite suspension include nano-hydroxyapatite, polydimethylsiloxane, ethyl acetate, and a curing agent. The preparation method of the super-hydrophobic wood comprises the following steps: subjecting the wood to an alkali etching treatment; spraying the composite suspension on the surface of the wood, and obtaining the super-hydrophobic wood after curing. The super-hydrophobic wood prepared by the present invention has excellent water-repellent properties, and its water contact angle can reach 153.3°. At the same time, the rolling angle is small, only 4.3°, and is suitable for wood applications in outdoor environments. After 60 days of outdoor exposure, the water contact angle can still be maintained at 152.5°, and the rolling angle is about 6.1°, which proves that the coating has good weather resistance. After multiple wear and repair cycles, the water contact angle can still be restored to 142°, and the repair rate is as high as 92.4%.

The application discloses a kind of wood product dimensional stability surface treatment device and processing technology thereof, including the following steps: wood product surface is cleaned, dry, enzyme solution is uniformly sprayed on wood product surface, and wood product surface is analyzed by spectrum, washed clean, and the lignin removal rate of wood product surface is detected;The wood product of lignin removal is placed in heat treatment furnace, and heating, heat preservation and cooling treatment are sequentially carried out respectively, and the wood product is taken out and ventilated at room temperature;Epoxy resin and hardener are stirred and mixed to obtain a mixture, the mixture is uniformly applied to the surface of wood product, the voids of wood product surface are filled, and solidification is carried out at room temperature;Silane solution is uniformly sprayed on the surface of solidified epoxy resin using spraying method, dried and solidified;The absorption and transmission of moisture by the wood product are blocked, thereby avoiding the expansion or shrinkage of the wood product, and the dimensional stability of the wood product is improved.

The invention discloses a prestressed fiber reinforced wood-bamboo-based pipeline for maritime work and a preparation method thereof, and belongs to the technical field of ocean engineering pipelines. The pipeline sequentially comprises a waterproof sealing layer, a structural middle layer, a prestressed fiber winding layer and an anti-corrosion outer layer from inside to outside. The structural middle layer is formed by splicing a plurality of arc-shaped unit strips made of recombined wood, recombined bamboo or bamboo laminated wood in the circumferential direction through mortise and tenon interference fit and glue joint. The prestressed fiber winding layer is formed by winding and curing continuous fibers impregnated with resin under preset tension, and continuous radial compression prestress is applied to the structural middle layer after curing. The high-strength performance of the recombined wood or / and bamboo is utilized, the ring stiffness, the axial strength and the sealing reliability of the wood-bamboo-based pipeline are improved through the synergistic effect of a mortise and tenon interlocking structure and prestressed fiber constraint, and the problems that a traditional biomass pipeline is poor in sealing performance, low in pressure resistance and prone to deformation are solved; the structure is suitable for floating body pipelines and bearing components in ocean floating structures.

The application discloses a wood-bamboo composite mildew-proof agent with heat-alkali coupling stability and a preparation method and application thereof. The wood-bamboo composite mildew-proof agent uses organic phosphoric acid antioxidants and polymerization-resistant heat stabilizers in combination to improve the antioxidant performance and heat stability of the wood-bamboo composite mildew-proof agent, and inhibits the degradation of the wood-bamboo composite mildew-proof agent under an alkaline environment and high-temperature treatment, thereby reducing the decrease of the mildew-proof performance of wood-bamboo composite materials added with the wood-bamboo composite mildew-proof agent due to a hot-pressing process.

The present invention discloses a phosphine oxide ester composite formaldehyde scavenger, its preparation method and application. Specifically, it discloses the application of the phosphine oxide ester composite formaldehyde scavenger in removing formaldehyde in air, boards and human specimens. The phosphine oxide ester composite formaldehyde scavenger comprises the following components in percentage by weight: 20% - 60% of trihydroxymethyl phosphine triurethane, 0.01% - 0.05% of penetrant, 0.05% - 0.10% of wetting agent, and the balance being deionized water. Its active ingredient, trihydroxymethyl phosphine triurethane, can be miscible with water in any proportion, enabling the formaldehyde scavenger to remove formaldehyde in the air by spraying, or to be applied on the surface of materials or specimens releasing formaldehyde, or added to materials releasing formaldehyde, effectively inhibiting the long-term release of formaldehyde and achieving the removal of formaldehyde at the source.

The invention provides a light-transmitting (bright) veneer and a light-transmitting (bright) bamboo prepared by a roller coating method as well as a preparation method and application of the light-transmitting (bright) veneer and the light-transmitting (bright) bamboo, and aims to improve an impregnation link in a traditional preparation method of the light-transmitting (bright) veneer and the light-transmitting (bright) bamboo, so that waste of resin is reduced, and real wood characteristics of original colors, patterns, textures and touch feeling of wood are reserved. According to the method, firstly, dried wood veneers are soaked in ethyl alcohol for standby application, the lignin removal process in a traditional method is omitted, ultraviolet curing resin (hereinafter referred to as UV resin) with a certain thickness is applied in a roller coating mode instead of a traditional resin impregnation method, and finally ultraviolet irradiation treatment is conducted. And the light-transmitting (bright) veneer and the light-transmitting (bright) bamboo veneer are prepared. By means of the method, the real touch sense of solid wood and solid bamboo of light-transmitting (bright) veneers and light-transmitting (bright) thin bamboos is effectively achieved, the plastic touch sense of the light-transmitting (bright) veneers and light-transmitting (bright) thin bamboos manufactured through a traditional dipping method is reduced, and meanwhile the original color, patterns, texture and touch sense attractiveness, texture and mechanical strength of wood and bamboos are reserved. By means of the method, veneers and bamboo veneers of different tree species can obtain certain light transmittance and haze, the preparation cost of the materials can be reduced, continuous production is achieved, and the wood and bamboo veneers have higher application value in the field of intelligent surfaces.