38 results about "Rubberwood" patented technology

The invention discloses a novel method for utilizing rubber wood timber brushwood and slab sawdust. The novel method comprises the following steps of: screening and crushing brushwood, wood shavings, slab sawdust and the like to obtain rubber wood powder, mixing the rubber wood powder with catalyst phosphoric acid according to the weight ratio of 1:(1-4), preparing active carbon with specific surface area of 1600m<2> through drying, activating, washing and stoving processes, and simultaneously recovering the catalyst; adding the wood powder to a carbonization furnace, and preparing rubber wood biomass powdered carbon by utilizing a slow-speed pyrolysis process; simultaneously, recovering combustible gas separated from pyrolysis gas in a pyrolysis process in a condensation manner so that the combustible gas is applied to an active carbon preparation process; mixing biomass oil which is liquid condensed from the pyrolysis gas with biomass powdered carbon, and carrying out extrusion forming by utilizing a mould to prepare various specifications of biomass carbon; and treating residual ash after biomass carbon combustion by utilizing recovered phosphoric acid with the concentration of 10-40% in an active carbon preparation process to obtain a liquid compound fertilizer and a grain fertilizer with adjustable proportion of potassium to phosphorus. The invention relates to a comprehensive utilization process route for producing high-specific-surface-area activated carbon, sectional carbon and compound fertilizer by taking brushwood, wood shavings and slab sawdust, generated by a rubber wood treating process, as raw materials.

A dipping solution used for functional modification of rubberwood timber is disclosed. The dipping solution is prepared by mixing following components by weight: 2-30% of alkaline silica sol calculated based on silicon dioxide, 2-30% of water-soluble urea-formaldehyde resin, 0.2-20% of a waterproof agent, 0.05-3% of a silane coupling agent and 1-5% of borax, with the balance being water. The dipping solution adopts combination of inorganic components and organic components. Wood cell walls are covered with an inorganic-organic glue layer formed by the dipping solution so as to form a separating layer on the surface of wood fiber, so that the timer has functions of corrosion resistance, insect prevention, flame retardance, waterproofness, and the like. Components of the dipping solution are free of self-polymerization at room temperature, thus meeting production requirements. The dipping solution is high in binding capability with rubberwood and high in loss resistance. Obtained modified timer is good in stability, high in waterproofness, good in corrosion resistance and good in flame retardance. Economic value of the rubberwood is increased.

The invention discloses an environmentally-friendly high-strength heat-treated rubber wood and a modification method thereof. The environmentally-friendly high-strength heat-treated rubber wood has acolor difference of delta-E * of 18 to 30, a density of 0.62 to 0.68 g/cm3, a water content of 6% to 6.3%, a parallel-to-grain compressive strength of 38 to 45 MPa and a screw-holding power of 1800 to2200 N. The method provided by the invention comprises the following steps in six stages: drying, humidity regulation, heating, heat preservation, cooling with low loss of strength and high efficiency, and cooling. According to the invention, the loss of strength can be effectively controlled under the premise that the dimensional stability of wood is greatly improved, and a high-strength heat-treated material is prepared; meanwhile, the method has the advantages of no chemical pollution in the process of treatment, high production efficiency, low cost, simple operation, high efficiency and environmental protection; the dimensional stability and decorative performance of the wood are improved; the disadvantage of low strength of heat-treated wood is overcome at the same time; and the environmentally-friendly high-strength heat-treated rubber wood provided by the invention can be widely applied to the industry of wood products like solid wood floors, solid wood furniture and solid wooddoors.

The invention discloses a process for manufacturing a three-ply board by means of trachycarpus martianus leaf sheath fibers. The process includes the steps that (1) the trachycarpus martianus leaf sheath fibers are clipped after being dried; (2) urea resin is placed in a closed container, distilled water is added to the closed container, and the mixture is uniformly stirred until no suspended matter can be observed; (3) the trachycarpus martianus leaf sheath fibers are placed in urea formaldehyde solutions, steeped and then bled to be stood, then the trachycarpus martianus leaf sheath fibers are baked and cooled; (4) the surface of a rubber wood panel is coated with resin adhesives, processed trachycarpus martianus leaf sheath fiber squares are laid on the resin adhesives in a criss-cross and overlapped mode, then the trachycarpus martianus leaf sheath fibers are covered with another rubber wood panel coated with the adhesives, and cold pressing, hot pressing and standing are carried out. The trachycarpus martianus leaf sheath fibers replace solid wood to be used for manufacturing the three-ply board, the requirements for strength and dimensional stability of artificial boards can be well met, mildewing is not prone to occurrence, a large quantity of timber resources are saved, the deficiency of existing forest resources can be relieved to some extent, and the environment is protected.

The invention belongs to the technical field of rubber wood processing, and particularly relates to a processing method and a processing system of a rubber wood sliced veneer. The method includes thesteps: firstly, material selection; secondly, splitting; thirdly, corrosion prevention; fourthly, slicing; fifthly, drying. The technical scheme includes that placing a square wood strip into a rubberwood corrosion prevention device storing corrosion prevention liquid medicine to stew the square wood strip until water content rate of the square wood strip is 102%; spin-drying the square wood strip, enabling the water content of the square wood strip to be reduced to 50%-58% within 1-2 hours. According to the technical scheme, the square wood strip is firstly spin-dried within 1-2 hours, so that the water content of the square wood strip is reduced to 50%-58%, the wood strip is sliced into a veneer, and the veneer is dried at the medium temperature, so that the sliced veneer does not easily crack and warp when being rapidly dried.

The invention relates to a container bottom plate manufacturing method for directionally reinforcing a rolled and flattened bamboo plate through bamboo green strips. A radiation pine bottom plate, a radiation pine panel, a rubber wood veneer and the rolled and flattened bamboo plate are included. The bamboo filament curtain and the radial bamboo curtain are sequentially provided with the radiation pine panel, the rubber wood veneer, the rolled and flattened bamboo board, the bamboo filament curtain, the rubber wood veneer, the three layers of radial bamboo curtains, the rubber wood veneer, the three layers of radial bamboo curtains, the rubber wood veneer, the bamboo filament curtain, the rolled and flattened bamboo board, the rubber wood veneer and the radiation pine bottom board from top to bottom. The container bottom plate directionally enhanced by the bamboo green strips is reasonable in design and high in practicability, small-diameter moso bamboos or moso bamboo tips in mountainous areas are effectively utilized, the utilization rate of the moso bamboos in the mountainous areas is increased, the production cost of the bamboo container bottom plate is reduced, and the container bottom plate has the characteristics of excellent performance, high outturn percentage and moderate price; and the special requirements of container manufacturing enterprises on production and transportation of the container bottom plate can be met.

The invention discloses a preparation method of a flame-retardant environment-friendly high-strength board. Waste rubber wood which is remained in rubber wood processing enterprises and has no additional value is used as a raw material, no adhesive is used, and the flame-retardant environment-friendly board is prepared by using the characteristics of the raw material through the processes of crushing and screening, chemical pretreatment, grinding, pre-pressing, hot pressing and the like. By means of the content of the method, the flame-retardant environment-friendly high-strength board is prepared without using any adhesive on the premise of not influencing the performance of the board for the first time, toxic and harmful substances such as formaldehyde are not released, meanwhile, wastes in rubber wood processing enterprises are turned into wealth, the product additional value of the rubber wood processing enterprises is improved, and a series of problems of release of toxic and harmful substances influencing human health in home building materials and the like are solved while the economic benefit is maximized.

Disclosed is a board made from acetylated mbberwood elements and a method for making same. The acetylated rubberwood elements have an acetyl content of at least 17% and/or are prepared by acetylating mbberwood elements using an acetylation agent in the vapour phase. The invention also pertains to acetylated rubberwood elements prepared by using an acetylation agent in the vapour phase.

The invention discloses a method for improving surface coating performance by treating rubber wood based on a steam explosion method, and relates to the technical field of wood product treatment. Themethod comprises the steps that oak is subjected to alkali liquor treatment, and steam explosion treatment is conducted after alkali liquor treatment, wherein the alkali liquor treatment is carried out under a microwave-assisted condition, the alkali liquor is obtained by mixing a strong alkali solution and a weak alkali solution, and the mixing mass ratio of the strong alkali solution to the weakalkali solution is 3: (1-1.5); the oak surface treated through the method has better brushing performance, the binding force between the oak surface and a coating can be greatly improved, and therefore the oak surface can be used for a longer time, and the situation that the coating on the surface falls off too early is avoided.

The invention belongs to the technical field of wood modifier synthesis and provides a multifunctional wood modifier which comprises a compound I. The compound I is of a structure shown as follows. The invention further provides a preparation method of the wood modifier. The preparation method includes: using cyanuric chloride, n-hexylamine, taurine and 3-mercapto-1, 2, 4-triazole as raw materialsto synthesize the compound I through three-step reaction. The invention further provides application of the wood modifier in being impregnated in rubber wood. The multifunctional wood modifier has the advantages that a flame retardant has flame-retardant, smoke-inhibiting, bacteriostatic and moistureproof effects and is high in flame-retardant efficiency and low in cost; the modifier has high impregnation resistance when being added into the rubber wood and has no impact on using performance of the rubber wood; the modifier can form nitrogen-sulfur synergistic flame-retardant effect and is simple in synthesis process and suitable for popularization and application.

The invention discloses a treatment method of impregnated rubber wood, which comprises the following steps: putting wood to be modified into an impregnation tank, and vacuumizing at a heating state; cooling to 25 DEG C, injecting an impregnation liquid, pressurizing and maintaining the pressure for 5-6 hours, and discharging the impregnation liquid; and opening the impregnation tank, taking out the wood, putting the wood into a drying kiln, carrying out staged drying treatment, drying at 60 DEG C until the moisture content is less than 30%, drying at 70 DEG C until the moisture content is lessthan 20%, drying at 80 DEG C until the moisture content is less than 15%, and drying at 100 DEG C until the moisture content is less than 10% to obtain the impregnated rubber wood. According to the invention, the rubber wood wet plates can be directly processed; the problems of high energy consumption and high cost due to the fact that dry plates are needed for processing and treatment in conventional rubber wood processing are solved; according to the method, vacuumizing is carried out at heating state, air in the wood can be partially or completely exhausted, then cooling is conducted, theremaining air in the wood is compressed to generate a vacuum state, chemicals enter the wood by means of the pressure difference during pressurization, the impregnation effect is improved, the formaldehyde content of the impregnation liquid is low, and the method is environmentally friendly.

The invention relates to a treatment method for reducing the content of starch, protein and saccharides in rubber wood. The treatment method comprises the following steps: (1) adding a weak acid solution into the rubber wood for ultrasonic acidizing treatment; (2) after ultrasonic acidification treatment, adding an alkaline nano sodium silicate solution for ultrasonic neutralization treatment; (3) stacking and air-drying the rubber wood subjected to ultrasonic neutralization treatment, and performing high-temperature drying treatment when the water content is less than 70-80%; and (4) high-temperature drying treatment comprises a heating drying stage and a cooling humidifying stage. By the adoption of the treatment method, the content of starch, protein and saccharides in the rubber wood can be greatly reduced, the color of the treated rubber wood is uniform, and the rubber wood capable of preventing mildewing of the rubber wood for a long time and keeping the natural color of the wood can be obtained.

The invention relates to the technical field of wood treatment, and discloses a treatment method for eliminating bluing of rubber wood. The blued rubber wood is subjected to physical and chemical treatment methods so that bluing bacteria and other accessory bacteria on the surface and in the interior can be deeply and effectively removed, and bluing spots can be well eliminated; the adopted treatment mode is simple, blue color spots in the blued rubber wood can be effectively removed, the original color of the rubber wood is stabilized, the original quality of the rubber wood is kept for a long time, the problem that the quality of the rubber wood is reduced due to the poor prevention and treatment effect caused by the high bluing infection speed is solved, the method has the advantages offavorable color spot elimination effect on the blued rubber wood and low treatment cost, and can be popularized and used in production. Economic loss and processing cost brought to rubber wood processing enterprises due to bluing are reduced.

The invention relates to a manufacturing method of a national emblem. The manufacturing method of the national emblem comprises the following manufacturing steps that pine laminated wood is prepared, and protection treatment on the laminated wood is conducted; the laminated wood is made into keels and a circular sealing plate; a pine multilayer board is prepared to manufacture two bottom plates; a rubber wood is prepared to prefabricate embossment; the prefabricated embossment is carbonized; the embossment is fixed on one of the bottom plates; a sealing plate is placed on a plate surface, facing away from the embossment, of the bottom plate, the keels are placed in the circular sealing plate, and the bottom plate, the sealing plate and the keels are fixedly connected through mounting blocks; a plurality of lifting rings are arranged outside the other bottom plate; a plurality of connecting pieces are mounted on the other bottom plate, connecting ends of the connecting pieces can be inserted into connecting blocks, so that the other bottom plate is mounted; a prefabricated base is installed outside the sealing plate; a whole surface of the national emblem is trimmed, ground and painted. The manufacturing method of the national emblem has the effects of reducing the weight of the national emblem and facilitating replacement of the national emblem.

The invention relates to a preparation method of compressed rubber wood, in particular to a preparation method of compressed rubber wood with stable size and mildew resistance. The problems that rubber wood is low in density, poor in wood property, prone to deformation and prone to mildewing and blue stain are solved. The treatment method comprises the following steps: 1, preparing a water-soluble acylated lignin solution; 2, dipping the rubber wood in a water-soluble acylated lignin solution; thirdly, hot-pressing densification treatment is conducted on the impregnated rubber wood; and 4, drying and curing. The method is used for preparing the compressed rubber wood which is stable in size and mildew-proof.

The invention discloses a heat energy recycling system utilizing rubber wood carbon. The system comprises a waste heat recycling mechanism, one end of the waste heat recycling mechanism is connected with a combustion furnace, one end of the combustion furnace is connected with a fluidized bed furnace, the top of the waste heat recycling mechanism is provided with a sealing cover plate, and the top of the sealing cover plate is provided with a steam recycling pipeline. And one end of the steam recycling pipeline is connected with a primary waste heat discharge pipe. According to the heat energy recycling system utilizing the rubber wood carbon, the waste heat recycling mechanism can recycle the waste heat generated in the carbon production process, steam is generated after water is heated by the waste heat, then the steam is conveyed into a wood drying process to dry wood, and the waste heat can be subjected to secondary combustion through the combustion furnace. The harmful gases such as carbon monoxide inside can be removed after sufficient combustion, generated heat further enters the fluidized bed furnace to be recycled, the fluidized bed furnace can further utilize the waste heat generated by the combustion furnace, the water is heated to generate water vapor, and the water vapor is conveyed into the wood drying process to further dry the wood.