23 results about "Wood flour" patented technology

The present invention relates to the technical field of wood-plastic composites, and provides a PVC wood-plastic material having strong smoke suppression and flame retardancy, and a preparation method therefor. The PVC wood-plastic material comprises the following components in parts by weight: 70-100 parts of a PVC resin, 20-30 parts of wood powder, 20-30 parts of calcium carbonate, 15-20 parts of a smoke suppression material, 10-15 parts of a flame retardant, 1-6 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 5-10 parts of a processing aid, and 1-4 parts of a lubricant, wherein the smoke suppression material comprises a molybdenum compound, ferrocene and an oxalate dihydrate in a mass ratio of 1:(0.5-1.5):(5-10). The preparation method comprises the end-capping modification of the wood powder and the preparation of the PVC wood-plastic material. The prepared PVC wood-plastic material has excellent flame retardancy and smoke suppression properties.

The utility model discloses a wood powder processing device is used in corrugated paperboard production, including processing box and screening box, the bottom below of processing box and screening box is provided with base, the below one side of processing box is fixedly connected with screening box, the top of processing box is fixedly connected with feeding hopper, the bottom of feeding hopper is provided with feeding twisting roller, the inside top of processing box is provided with crushing bin, the below of crushing bin is provided with the crushing chamber, the inside of crushing chamber is provided with the smashing mechanism, the feeding twisting roller that the utility model sets, cooperation crushing bin and smashing mechanism can carry out the pressure roll crushing of larger timber again, then carry out the smashing work, cooperation multilayer screening mechanism can obtain multiple different specifications of powder in one batch simultaneously, the collection of experimental raw material is convenient, improves the homogeneity of raw material, and then can reduce the discreteness of experimental data, and the smashing mechanism and crushing bin can share a set of driving mechanism, and the equipment complexity is reduced.

This invention relates to the field of lightweight wood-plastic composite materials, specifically to an antistatic lightweight wood-plastic composite material and its preparation method, which addresses the problems of insufficient antistatic properties and high density in existing wood-plastic composite materials. The method involves mixing an antistatic agent with high-density polyethylene, extruding, cooling, crushing, and sieving to obtain an antistatic masterbatch. Modified wood flour, high-density polyethylene, maleic anhydride graft compatibilizer, antioxidant, 2-hydroxy-4-methoxybenzophenone, and γ-aminopropyltriethoxysilane are then mixed, cooled, and the antistatic masterbatch is added for further mixing. The mixture is fed into a twin-screw extruder, and cobalt ferrite-coated hollow glass microspheres are added. After extrusion, cooling, and crushing, the mixture is then subjected to secondary molding in a single-screw extruder, gradient cooling for shaping, and traction cutting to obtain the antistatic lightweight wood-plastic composite material. This material possesses excellent antistatic properties, low density, and lightweight characteristics, along with good flexural strength and impact strength, low water absorption, and excellent water resistance.

The application discloses a mildew-proof wood-plastic board and a preparation method thereof, and relates to the technical field of wood-plastic boards.The mildew-proof wood-plastic board is prepared from the following raw material components in parts by weight: 50-60 parts of mildew-proof modified wood powder, 35-50 parts of ultraviolet-resistant modified polypropylene, 2-5 parts of maleic anhydride grafted polypropylene, 5-8 parts of a toughening agent, 8-16 parts of modified filler, 1-2 parts of zinc stearate, 0.5-1 part of an antioxidant, 0.2-0.3 part of a hindered amine light stabilizer and 0.05-0.1 part of dicumyl peroxide; wherein the mildew-proof modified wood powder is obtained by modifying wood powder with a mildew-proof modifier; and the ultraviolet-resistant modified polypropylene is obtained by modifying polypropylene with 2-hydroxy-4-propenyloxybenzophenone.The mildew-proof wood-plastic board prepared by the application has long-term stable mildew-proof performance, and also has excellent mechanical properties.

The invention belongs to the technical field of reinforced and toughened polycarbonate materials, and relates to a reinforced and toughened polycarbonate material and a preparation method thereof. The reinforced and toughened polycarbonate material is prepared from the following components in parts by mass: 60-80 parts of polycarbonate; 5-20 parts of wood flour / polyglycerol / nano-copper composite particles; 5 to 15 parts of glass fiber; 1-3 parts of a toughening agent; and 0.5-2 parts of a compatilizer. According to the PC reinforcing and toughening product, melt blending is carried out through a twin-screw extruder, polycarbonate, glass fibers and other components can be fully mixed under the twin-screw extrusion condition, the dispersity of a blend is improved, and the PC reinforcing and toughening product has the advantages that by improving the compatibility of the polycarbonate and various raw materials, the toughness of the product is improved, and the toughness of the product is improved. Therefore, the interface bonding force between the materials is greatly improved, the normal-temperature impact toughness and the low-temperature impact toughness of the product are improved, and the product has better surface appearance.

The utility model discloses the wood powder screening and impurity removing device belongs to the technical field of the wood powder screening, and particularly relates to a wood powder screening and impurity removing device for the production workshop of the expanded explosive, which comprises a conveying belt, a screening barrel, a driving device, a collecting plate, a wood powder impurity collecting box and a driving part.

The present application relates to the technical field of plastic-wood floor production, in particular to a plastic-wood floor production equipment, comprising a bottom plate, three groups of screw extruders, a driving box, a heating module and a die block are arranged on the upper side of the bottom plate, a stirring barrel is arranged on the side of the screw extruder, three groups of feeding pipes and three groups of discharging pipes are fixedly installed on the side of the stirring barrel at equal intervals, the three groups of discharging pipes respectively penetrate the screw extruder to the inside thereof, and a driving mechanism is arranged in the stirring barrel. Through the nested structure cooperation of the first stirring cylinder, the second stirring cylinder and the third stirring cylinder in the driving mechanism, the selectively driven gear ring and the matching wheel system, independent speed control of different stirring cylinders under the same driving source is realized, so that the operator can flexibly adjust the rotating speed of each stirring cylinder according to the actual flow characteristics and proportioning requirements of the recycled plastic and wood powder mixture, obtain differentiated mixing effect, and significantly improve the adaptability of the equipment to various waste raw materials and the stability of product quality.

The utility model relates to timber processing field especially the wood chip collection device for ice cream stick production, including screening box, forming box, wood stick processing box, screen cloth, hydraulic cylinder and fan, the front and rear two ends inner wall rotation of screening box is installed with left and right distribution's support roller, the outer wall of support roller is installed with screen cloth, the rear end of screening box is installed with motor, and the output of motor passes through the rear end of screening box and is connected with the pivot of right support roller, and the front end inner wall of screening box is opened with first slot, and the outer wall of drawer is attached with the inner wall of first slot, the utility model discloses through the screen cloth of additional installation falls to the drawer with wood powder and dust, can prevent the mixture of wood chip and dust wood powder etc., promotes the recovery quality of wood chip, and the wood chip after screening is completed can be extruded to the forming box by forming box, and the wood chip after extruding is formed can be pushed out the forming box by push -back, can avoid the situation that wood chip blockage leads to suction drop and influences wood chip collection to occur.

This invention relates to the field of adhesive technology, and more particularly to a borate and wood flour composite modified soybean protein adhesive, its preparation method, and its application. The soybean protein adhesive provided by this invention is prepared from raw materials including soybean protein, wood flour, borate, and a dispersion medium; the amount of soybean protein is 10-30% of the total mass of the raw materials used to prepare the soybean protein adhesive; the amount of wood flour is 3-50% of the soybean protein mass; and the amount of borate is 2.5-50% of the soybean protein mass. The soybean protein adhesive provided by this invention uses a scientifically formulated blend of specific types and amounts of raw materials to achieve synergistic effects among multiple components. Utilizing the combined action of the active ingredients in the wood flour and the borate, a dense and stable three-dimensional chemical cross-linking network is constructed in the soybean protein system, thereby simultaneously and significantly improving the adhesive's comprehensive properties such as water resistance, mildew resistance, and flame retardancy without introducing harmful substances such as formaldehyde.

This invention relates to the field of materials processing technology, and discloses a processing aid for wood-plastic composites and its preparation method, to solve the problems of lubrication and extrusion in the processing of high wood flour content. The aforementioned processing aid, by weight, comprises 5-95 parts modified polysiloxane, 5-95 parts hydrocarbon wax, 5-95 parts fatty acid, 5-95 parts carboxylic acid ester, 5-95 parts fatty amide, 5-95 parts fatty alcohol, 5-95 parts metal soap, and 1-5 parts other additives. The processing aid of this application is applied to the processing and extrusion of wood-plastic composites, utilizing the complementary advantages of the lubrication effect of small molecule lubricants and the excellent properties of modified polysiloxane to prepare a composite lubricant. Simultaneously, the structural advantage of the polar groups in the polysiloxane has a coating effect on wood flour particles that have adsorbed other polar small molecules, while the long-chain alkyl portion achieves good compatibility with the polyolefin resin through entanglement, preventing the precipitation of other polar small molecules. The composite lubricant offers high cost-effectiveness and excellent processing lubrication and defect-free product extrusion appearance.

This invention relates to a composition for manufacturing wood composite materials, a wood composite material using the same, and a method for manufacturing the same. More specifically, it relates to a composition for manufacturing wood composite materials comprising a thermoplastic resin, a silane compound of formula (1) comprising an acrylate moiety, and a biomass mixture comprising kenaf powder and wood flour; a wood composite material manufactured using the same; and a method for manufacturing the wood composite material. In formula (1), R1, R2, and R3 are each independently selected from C. 1‑6 Alkoxy, C 1‑6 Alkyl, halogen, C 1‑6 Alkylsiloxy, allyl and C 1‑6 The group consists of alkenyl groups; n is 0 to 15; R4 is C 1‑6 Alkyl group. Formula (1)

A high‑stability PVC wood-plastic composite material, comprising the following materials in parts by weight: 80-100 parts of a PVC resin, 20-30 parts of wood flour, 15-30 parts of calcium carbonate, 8-15 parts of a stabilizing material, 4-8 parts of a stabilizer, 1-6 parts of a foaming agent, 1-2 parts of a coupling agent, 5-10 parts of a processing aid, and 1-4 parts of a lubricant. The stabilizing material comprises β-diketone, a phosphite compound, and a light stabilizer. The addition of the stabilizing material to the PVC wood-plastic composite material system effectively improves the processing stability and resistance of the PVC wood-plastic composite material.

The application discloses a special-shaped die pressing composite material using soft impurities of waste furniture and a preparation method, and relates to the technical fields of waste wood material resource utilization and composite material processing. The special-shaped die pressing composite material is prepared from the following raw materials in parts by mass: 70-85 parts of wood powder made of a wood base material of waste furniture, 3-15 parts of surface-activated soft impurity particles, and 10-15 parts of phenolic glue. The surface-activated soft impurity particles are compounded according to a specific mass ratio, so that the product has a synergistic effect in terms of toughness, light weight and shock absorption function, and the demolding completeness rate of the deep-cavity special-shaped component reaches more than 99%.

An asphalt-modified elastic chip having an elastic reinforcing fiber function and a method for manufacturing the same, an asphalt-modifying additive for an asphalt-modified elastic chip having an elastic reinforcing fiber function and a method for manufacturing the same, and an asphalt mixture containing the same and a method for manufacturing the same are introduced. The method for manufacturing an asphalt-modified elastic chip having an elastic reinforcing fiber function according to the present invention comprises: a process of preparing one or more materials selected from wood flour, cellulose fibers, finely ground pulp, and finely ground paper; a process of selecting and preparing one or more elastic materials selected from SBR, BR, NBR Latex, and urethane mixtures; and a process of mixing one or more materials selected from wood flour, cellulose fibers, finely ground pulp, and finely ground paper with the elastic material for at least 10 minutes.

This invention relates to a flame-retardant PVC wood-plastic composite wall panel, belonging to the technical field of wood-plastic composite products. The flame-retardant PVC wood-plastic composite wall panel comprises a surface layer and a core layer, with the surface layer bonded to the surface of the core layer. The surface layer is mainly prepared from polyvinyl chloride, stabilizers, chlorinated polyethylene, saline resin, phosphorus and nitrogen flame retardants, smoke suppressants, low-melting-point glass powder, kaolin, and polyethylene wax. The core layer is mainly prepared from polyvinyl chloride, wood flour, calcium carbonate, antimony white, foaming agent, foaming regulator, stabilizers, stearic acid, and polyethylene wax. This invention, through its self-developed surface and core layers, forms a flame-retardant PVC wood-plastic composite wall panel that meets the testing requirements of the Korean flame-retardant standard KS F ISO 5660-2015, ensures the mechanical properties of the flame-retardant PVC wood-plastic composite wall panel, and simultaneously reduces weight per meter, lowering the production cost of the product.

This invention discloses a wood-plastic co-extruded profile with a textured pattern and its preparation method. The profile is produced by co-extruding a core layer and a surface layer. By adding color powder and textured masterbatch to the surface layer, combined with a special feeding process, the extruded profile can produce random stripes, more closely resembling the texture of natural wood. Maleic anhydride-grafted polyethylene is added as a compatibilizer to both the core layer and the surface layer, significantly improving the interfacial bonding between wood flour or reed powder and the plastic matrix, and increasing peel strength. The core layer uses recycled HDPE as the matrix, reducing production costs and conforming to the concept of a circular economy. The profile produced by this invention has good dimensional stability, a bending strength of over 25 MPa, a surface electrostatic voltage of no more than 3 kV, and after 3000 hours of accelerated artificial aging, the product appearance shows no significant change, and the mechanical property retention rate exceeds 90%.

This invention relates to the field of wood-plastic composite (WPC) flooring materials, specifically to a microbial-resistant and antibacterial WPC flooring and its preparation method. It addresses the problems of traditional WPC flooring's insufficient mechanical properties, susceptibility to cracking and deformation after long-term use, and extreme susceptibility to adhesion and erosion by bacteria, fungi, algae, and other microorganisms, which not only affect aesthetics but may also spread pathogens and endanger human health. This WPC flooring uses polyethylene resin as the main raw material, giving it excellent weather resistance. Adding modified wood flour, fluorinated cationic compounds, and modified zinc oxide significantly improves the mechanical properties of the WPC flooring and effectively enhances its resistance to microbial adhesion and antibacterial properties, ensuring its cleanliness, hygiene, and durability in daily life, thus meeting the demand for high durability and hygiene standards for WPC flooring.

The utility model relates to wood -plastic board production equipment technical field especially raw material mixing equipment of flame -retardant wood -plastic board, including mounting bracket and stirring device, be provided with first feeding hopper and second feeding hopper on the mounting bracket, the lower extreme of first feeding hopper is provided with the conveying device that cooperates with stirring device, the lower extreme of second feeding hopper is provided with the material guiding pipe that communicates with stirring device, the lower extreme of stirring device is provided with the discharge pipe, control valve is all set up on the discharge pipe, material guiding pipe and conveying device, be provided with feed pipe on second feeding hopper, be provided with liquid level meter on second feeding hopper, through setting first feeding hopper and second feeding hopper are used to provide wood powder and plastic resin in molten state respectively, before mixing, first heat wood powder through stirring device to the moisture in wood powder, to meet the demand of mixing.

The utility model relates to wood powder burner technical field, and disclose a kind of wood powder burner's anti-wood powder block pipeline structure, including feeding pipe and feeding mechanism, for preventing wood powder blockage the feeding mechanism is set in the upper middle part of feeding pipe, the feeding mechanism includes inlet, processing pipe, power motor, synchronous pulley, agitating shaft, poking shaft and blanking port, by the cooperation between each part of feeding mechanism, when wood powder material is added to processing pipe, rotating agitating shaft can evenly disperse powder material, can prevent wood powder in pipeline local gathering to form larger granular group or block and cause the problem of difficult to discharge blockage and difficult to transport, by the rotation of poking shaft, using the speed control of power motor, can control the amount of wood powder material into pipeline according to the demand of wood powder material use, can avoid to cause blockage due to wood powder addition too much, exceed the conveying capacity of pipeline, to be conducive to guaranteeing that pipeline is long and smooth and the stable use of burner.

The invention discloses a method for improving the surface functionality of low-density wood. The method comprises the following steps that (1) the low-density sawn timber is dried till the water content reaches 10%-15%, then wire drawing treatment is conducted on the tangent plane or the tangential plane of the low-density sawn timber, and the low-density sawn timber with the three-dimensional natural texture and machining residues are obtained; 2) grinding and drying the processing residues to obtain wood powder, mixing the wood powder with water, then putting the mixture into a hydrothermal reaction kettle for reaction, then filtering a reacted system, and taking filtrate to obtain a carbon quantum dot solution; 3, the low-density sawn timber with the three-dimensional natural textures is soaked in the carbon quantum dot solution, then drying treatment is conducted, and low-density wood surface functional improvement is achieved.The three-dimensional natural textures are improved through physical treatment, the processing residue pretreatment solution serves as a modifier, and the apparent strength of the wood surface can be improved.

This invention discloses a composite adsorbent material for uranium-containing wastewater and its preparation method, belonging to the field of wastewater treatment technology. Wood flour is treated with an alkali under heating and stirring conditions, washed until neutral, to obtain alkali-treated wood flour; it is thoroughly mixed with sodium alginate solution, allowed to stand for separation, and the supernatant is discarded; deionized water is added, and anhydrous calcium chloride solution is added while stirring, causing sodium alginate to undergo ion exchange cross-linking to form a calcium alginate structure, and the supernatant is removed after standing; anhydrous calcium chloride solution is added to the obtained sample, and sodium dihydrogen phosphate dihydrate solution is slowly added while stirring, and thoroughly mixed; ammonia water is added to the mixture to adjust the pH to alkaline conditions, the reaction is stirred at room temperature and allowed to age, and after the reaction is complete, it is washed until neutral and dried to obtain the adsorbent material. This invention introduces a sodium alginate-calcium network to facilitate in-situ loading of hydroxyapatite functional components, which can efficiently adsorb uranium ions in acidic uranium-containing wastewater.

This invention provides a formula and process for a wearable sea salt bracelet, belonging to the field of jewelry manufacturing technology. The process includes the following steps: S1, weighing 80% sea salt, ginseng powder, white wood powder, and food-grade plant gum by weight percentage, and pulverizing each raw material to 100-200 mesh; S2, mixing the pulverized sea salt, ginseng powder, and white wood powder evenly to obtain a mixed powder; S3, adding a food-grade plant gum solution to the mixed powder and stirring until a uniform, plastic blank is formed; S4, granulating the plastic blank to form round bead blanks; S5, sequentially air-drying, shaping, and polishing the round bead blanks to obtain bracelet beads; S6, assembling the beads with a cord to obtain a wearable sea salt bracelet. This invention solves the problems of existing sea salt products being difficult to mold into wearable bracelets, beads being easily damaged and shedding powder, and poor process adaptability, producing a sea salt bracelet with a sturdy structure, excellent wearability, and the characteristics of natural raw materials.

The invention relates to the technical field of environment-friendly materials, in particular to an environment-friendly plastic-wood composite material modified based on marine plastic waste and wood flour and a preparation method thereof.The preparation method comprises the following steps that recycled marine plastic, high-toughness polyester resin, a modified compatilizer, wood flour, flame-retardant filler, a coupling agent and a lubricating agent are mixed to obtain a mixed material; performing extrusion granulation on the mixed material to obtain plastic-wood particles, and performing hot press molding on the plastic-wood particles to obtain the environment-friendly plastic-wood composite material. Through the synergistic effect of combining the modified compatilizer with the modified solution, the modified compatilizer has the capability of combining with components with different properties such as marine plastic, wood flour and flame-retardant filler, the problem of poor inherent interfacial compatibility between the plastic and the wood flour is effectively solved, inorganic filler, wood components and a plastic base material can be tightly combined, and the flame-retardant and flame-retardant plastic has the advantages of high flame-retardant and flame-retardant properties. The problem that the internal structure of a traditional plastic-wood composite material is loose due to non-uniform component dispersion and weak interface bonding is avoided.