20results about "Coating impregnation" patented technology

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 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 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 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 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 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 utility model relates to the technical field of composite boards, in particular to a board with an insect expelling structure. According to the technical scheme, the board comprises a board body, the board body comprises a base board, a surface board is arranged on one side of the base board, a density board is arranged between the base board and the surface board, core boards are arranged on the side, away from the base board, of the density board, multiple sets of microcapsules are arranged on one side of each set of core boards, and shaving boards are arranged on the sides, away from the density board, of the core boards; the periphery of the plate body is coated with an insect-resistant agent, and one side of the surface layer plate is coated with varnish. The insect-resistant plate is simple in overall structure, physical, chemical and natural insect-resistant means are combined, and the insect-resistant capability of the plate is improved by adopting the methods of coating, soaking, microcapsules and plant essential oil, so that the plate not only can prevent insect damage to the structure, but also can prolong the service life, and the practicability and the safety of the plate are improved.

The application discloses a kind of based on self-assembly composite flame-retardant coating, with polyacetylimine PEI as positive flame-retardant raw material, APP / K10 prepared with ammonium polyphosphate APP and montmorillonite K10 as negative flame-retardant raw material, copper sulfate CuSO4 as positive electric protection raw material, sodium alginate SA as negative electric protection raw material, by the method for preparation of opposite charge polyelectrolyte by alternative immersion anion solution and cation solution.Its preparation method includes the following steps:1, the surface pretreatment of wood;2, the preparation of self-assembly solution;3, the construction of self-assembly composite flame-retardant coating;4, the protection of self-assembly composite flame-retardant coating.When the application as flame-retardant material, with flame-retardant property, pass UL-94V-0 level test;Limiting oxygen index is 40-60%;The temperature when decomposition mass is 5% is 120-140℃, the temperature when maximum decomposition rate is 280-320℃, the residual carbon amount at 800℃ is 30-40wt.%, after complete combustion, the residual carbon carbon layer is continuous and dense, without obvious crack and broken fiber structure, there is no hole.

The utility model relates to the technical field of ancient building repair, and discloses an ancient building wooden component anti-corrosion and anti-mildew treatment device which comprises a medicine storage box and a grip, limiting grooves are formed in the left side and the right side of the interior of the grip, limiting blocks are movably installed in the two limiting grooves, and a telescopic rod is fixedly installed between the two limiting blocks. The telescopic rod slides in the grip in a manner of pushing the grip, further, the ejector pin pushes the baffle downwards to enable the through hole and the connecting port to be aligned with each other, at the moment, an anti-corrosion agent enters the movable groove, and the sponge sleeve is infiltrated with the agent from inside to outside through the arrangement of the liquid inlet groove and the liquid injection groove, so that the anti-corrosion effect is achieved. Compared with a traditional dipping mode for applying the medicine to the wood component, when the device is used for adding the medicine, the sponge sleeve can be thoroughly soaked with the anti-corrosion medicine only by pushing the handle, use is convenient, and waste of the medicine is prevented.

The invention relates to the technical field of bamboo processing and food packaging, and particularly discloses a scheme for improving bamboo temperature tolerance and surface hydrophobicity, the scheme comprises the following steps: pretreatment: carrying out ultrasonic-assisted hydrothermal treatment on raw materials; the surface of the bamboo wood is coated with the coating, the coating comprises cellulose nanofibers (CNF), food-grade high-hardness resin and food-grade silicon dioxide, and the bamboo wood which can resist the high temperature of 200 DEG C and can be repeatedly used for food contact can be prepared after curing. According to the method, thermo-sensitive substances in bamboo wood are effectively removed through multiple times of mild ultrasonic pretreatment, soluble sugar with high hygroscopicity on the surfaces of the bamboo chips is removed, and the heat resistance of the bamboo chips is improved on the premise that the mechanical property is not damaged; the biomass-based temperature-resistant coating is adopted, the adhesive force of the coating is high, a layer of compact physical barrier is formed on the surface of the bamboo wood through food-grade high-hardness resin, and water permeation is prevented. CNF is used as a nano reinforced phase, and the strength, toughness and adhesive force to bamboo wood of the coating are improved through a three-dimensional network structure. In addition, food-grade silicon dioxide is dispersed in the coating to form a microscopic coarse structure to block air and further enhance the hydrophobic effect, so that the product has hydrophobicity on the premise of improving the temperature resistance, is safe and non-toxic, and meets the safety standard of food contact materials. The obtained bamboo wood is suitable for application scenes such as food processing utensils, catering kitchenware, cooking and the like.

The invention relates to the technical field of composite plywood preparation, and discloses a high-strength flame-retardant composite plywood and a preparation process thereof.The high-strength flame-retardant composite plywood is characterized in that a hot pressing device comprises a base and a hot pressing block, a support is fixedly mounted on the upper surface of the base, and a bearing plate is mounted at the top end of the support; a hydraulic cylinder is fixedly installed at the top end of the bearing plate, and an output shaft of the hydraulic cylinder is fixedly installed on the upper surface of the hot pressing block. According to the high-strength flame-retardant composite plywood and the preparation process thereof, by means of the pressure relief mechanism arranged in the hot-pressing block and the use of the pressure sensing sampling partition plate, the diaphragm, the diaphragm type pressure relief valve and other structures, the steam pressure in the plate blank can be sensed and automatically adjusted in real time, and intelligence and accuracy of the pressure relief process are achieved; the defect of bubbling or layering caused by improper manual control of the pressure reduction speed is avoided, the mechanical integrity and the appearance quality of products are improved, and therefore the actual production qualification rate is increased.

The application discloses symmetrical structure reversible radiation refrigeration / heating wood and a preparation method thereof, and the method comprises the following steps: mixing sodium hypochlorite and deionized water, adjusting the pH value to obtain a composite solution A; immersing wood into the mixed solution A and heating to obtain material A; immersing the material A into a hydrogen peroxide solution and heating to obtain material B; freeze-drying the material B to obtain material C; mixing hydrochloric acid, deionized water, lithium fluoride and MAX to obtain a suspension A; adding water to the suspension A and centrifuging, and measuring the pH value of the supernatant, and repeating the water adding and centrifuging until the pH value of the supernatant reaches a required pH value, and removing the supernatant; taking the precipitate, adding an ethanol solution and ultrasonicating, centrifuging the ultrasonic dispersion mixture, and removing the upper liquid; adding deionized water to the centrifuged precipitate, repeating the ultrasonicating and centrifuging, and collecting the upper liquid after each centrifuging to obtain an MXene solution; coating the MXene solution on one side of the material C, drying, covering a copper mesh on one side of the material C and hot-pressing, and the symmetrical structure reversible radiation refrigeration / heating wood is obtained.

The invention belongs to the technical field of artificial boards, and particularly relates to a veneer coated with a decorative surface, a preparation method of the veneer and a preparation method of an ecological board. The method comprises the following steps: adhering a single plate to a non-woven fabric to obtain a non-woven fabric veneer The non-woven fabric wood veneer is subjected to sanding treatment, and a sanded veneer is obtained; the sanded veneer is coated with wear-resistant resin and then subjected to hot pressing and pasting treatment through a steel plate, the veneer coated with the decorative surface is obtained, the wear-resistant resin comprises acrylic resin and an auxiliary, and the wear-resistant auxiliary comprises aluminum oxide and / or polytetrafluoroethylene. The wear-resistant resin is adopted as a facing material, the main agent of the wear-resistant resin is the acrylic resin, the acrylic resin is soft in texture, various steel plate textures can be pressed and attached through the steel plate, and the decoration diversity is improved. Meanwhile, the wear-resistant additive is compounded with the acrylic resin, and the scratch resistance and wear resistance of the veneer coated with the decorative surface can be remarkably improved through the wear-resistant additive.

The invention discloses a mildew-proof composite board and a preparation method thereof. The board is a composite board prepared by coating a single board with a mildew-proof resin composition and then hot-pressing, curing and molding a plurality of layers of single boards. The mildewproof composite board is good in mildewproof performance and mechanical performance, N, N, N ', N'-tetraglycidyl-4, 4 '-diaminodiphenyl ether epoxy resin and bisphenol A epoxy resin are adopted as thermocuring resin, the toughness of the material is improved, 4, 4'-bis (4-aminophenoxy) diphenyl sulfone and methylhexahydrophthalic anhydride are adopted as curing agents, and the toughness of the material is improved. The tributyl tetradecyl phosphorus chloride and the disodium octaborate tetrahydrate are adopted, so that the anti-mildew performance of the material is improved.

This invention provides an antibacterial PVC wood-plastic composite board and its production method, comprising a wood-plastic composite board body with rounded corners on both sides. One side of the wood-plastic composite board body has a side protrusion strip, which is semi-cylindrical in shape, with a rounded corner between the side protrusion strip and the side wall of the wood-plastic composite board body. The other side of the wood-plastic composite board body has a side groove, which is semi-circular in shape. An antibacterial agent is sprayed onto the surface of the wood-plastic composite board body. The interior of the wood-plastic composite board body has insertion holes and multiple internal grooves, with bamboo charcoal tubes inserted into the internal grooves. The process includes steps S1: material loading and assembly; S2: wood-plastic composite board installation; and S3: wood-plastic composite board spraying. This invention, by inserting bamboo charcoal tubes inside the wood-plastic composite board body and spraying an antibacterial agent onto the surface, provides antibacterial protection both internally and externally, improving the overall antibacterial and anti-mildew effect of the wood-plastic composite board body. The rounded corner structure of the wood-plastic composite board body makes it smooth, easy to clean, and less prone to retaining foreign matter or bacteria, further ensuring the antibacterial effect.

The present application relates to the technical field of preservatives, in particular to a preservative and mildew-proof liquid for wood surface and a preparation method thereof; in order to improve the long-term storage performance of wood, the present application adds and prepares bacteriostatic waterborne polyurethane; the present application carries out guanidination treatment on chitosan oligosaccharide molecules, generates guanidino groups in chitosan oligosaccharide molecules and introduces reactive amino groups; then further modifies 3-thiophene boronic acid, mixes it with guanidination chitosan oligosaccharide for reaction, and prepares modified chitosan oligosaccharide compounds with chitosan oligosaccharide, guanidino groups and thiophene ring structure; and prepares waterborne polyurethane emulsion with bacteriostatic performance, and in order to further enhance the penetration performance and antibacterial performance of the prepared preservative and mildew-proof liquid, the present application further adds a surfactant and ammoniacal copper quaternary ammonium salt ACQ for mixing, and finally prepares a preservative and mildew-proof liquid with long-term retention characteristics.