101results about How to "Strong loss resistance" patented technology

The invention provides a wood and cotton fiber treating agent which is prepared from, by weight, 60-100 parts of furfuryl alcohol, 4-5 parts of maleic anhydride, 4-8 parts of borax, 0-4 parts of nanosilicon dioxide and 88-128 parts of water. Wood treated through the treating agent has the excellent size stability, hydrophobicity and leach resistance, and meanwhile has the good mechanical strength, and particularly, the bending strength can be improved. When the treating agent is used for treating cotton fiber, the hygroscopicity of the cotton fiber can be lowered, and the leach resistance rate of the cotton fiber can be improved.

The invention relates to fault tolerance single photon communication technology, and in particular to a multi-channel frequency coding technology based on single photon detection with laser light as an information carrier. Laser light undergoes frequency modulation at a transmitting end and is loaded with information. After channel transmission, the intensity of the laser light attenuates to a single photon magnitude, and the laser light is measured by a single photon detector at a receiving party, and the detected single photon pulse sequence undergoes Fourier transformation so as to extract frequency information. According to the invention, the system has very strong fault tolerance in terms of channel loss and noise. The system addresses the problem of information loss and errors that are caused by channel loss and noise in long-distance laser communication and quantum communication, and provides technical means for the realization of satellite-ground laser communication and quantum secure direct communication.

The invention relates to the field of macromolecules and particularly relates to a preparation method of carbon granules used for air circulation of an air conditioner. The carbon granules are prepared by the following steps of: pretreating raw materials: feeding plant materials into a microwave vacuum tank, vacuumizing, and then carrying out microwave treatment; then sequentially drying, pre-carbonizing, carbonizing, sintering and cooling, controlling combustion to heat up to 700-750 DEG C or 900-1000 DEG C at the rate of 5-15 DEG C/min, preserving heat for 40-80 minutes, then heating up to 1000-1500 DEG C or 1600-1800 DEG C at the rate of 5-15 DEG C/min, preserving heat for 2-8 hours, then cooling to 300-400 DEG C at the rate of 18-25 DEG C/min, and then cooling to room temperature along with a furnace to obtain primary carbon; activating: mixing the obtained primary carbon with a 8-10% potassium oxalate solution according to the mass ratio of 1:(3-4), immersing for 3-5 hours, then cleaning with deionized water until the pH value is neutral, and then carrying out vacuum pressurized flame retardant treatment, primary bamboo vinegar treatment, secondary bamboo vinegar treatment and microwave treatment; and preparing carbon granules. The carbon granules prepared by the preparation method has good antistatic property and air purification effect, and has the flame retardant function.

The invention provides a natural mildew-proof and corrosion-proof agent for bamboos and woods. The natural mildew-proof and corrosion-proof agent for the bamboos and the woods is composed of 0.5-10 parts of gingko testa extracts, 95-105 parts of dissolutions and 0.5-5 parts of chitosan. A production method of the gingko testa extracts includes the steps of drying and smashing operation, ultrasonic extraction of ethanol solutions, acidified extraction and purification and rotary evaporation and concentration. The natural mildew-proof and corrosion-proof agent has the beneficial effects of being friendly to environment, safe, harmless, high in leaching resistance and good in long-term mildew-proof effect because the gingko testa extracts are adopted as main functional agents and the chitosan is adopted as an auxiliary agent. In addition, the natural mildew-proof and corrosion-proof agent can be used for changing colors of the bamboos and the woods.

The invention provides shield tail sealing grease with high water resistance and high water sealing performance. The shield tail sealing grease has high pump pressure conveyance feasibility, does not corrode spacers among cement annular duct pieces, is easily filled among wire brushes, and has long using cycle and high quality. The shield tail sealing grease comprises the following components: base oil, lubricating oil, chlorinated paraffin, polybutene, fibers and calcium carbonate. When coated on metal plates or concrete surfaces or in the dry and wet state or in water, the shield tail sealing grease has the advantages of high adhesivity, high sealing performance, high abrasion resistance, high leachability resistance, good pumping effect, environmental friendliness, no toxicity, no odor, no corrosion to equipment, reduction in abrasion of shield equipment, stable products, ageing resistance and oxidation resistance.

The invention discloses a bamboo material modifying method and a bamboo plate and belongs to the field of wood materials. According to the bamboo material modifying method, under the action of a 20-60KV high-voltage electrostatic field, high-voltage electrostatic treatment is carried out on a bamboo plate body with silver plates fitting on the upper and lower end faces. The bamboo plate after modified treatment sequentially comprises a nano-silver element permeation layer, a bamboo plate body, and a nano-silver element deposition layer/nano-silver element permeation layer in the thickness direction of the plate. The bamboo material after high-voltage electrostatic modified treatment has larger anti-corrosive and mildewproof treatment depth; the permeation depth of the nano-silver elementin the plate is 0.05-1mm; and the modified bamboo material is higher in anti-corrosive and mildewproof effect.

The invention discloses a wood modification working liquid used for wet plate processing and a use method thereof. The wood modification working liquid used for wet plate processing is prepared from, by weight, inorganic base resin, namely an alkaline silica solution with 2-30% of silicon dioxide by weight, organic base resin, namely water soluble urine aldehyde resin impregnation liquid with 2-30% by solid content, waterproof agents with 0.2-20% by solid content, 0.05-3% of silane coupling agents, 0.2-1% of emulsifying agents, 1-10% of fire-retardant preservative and the balance water through mixing. The wood modified working liquid adopts matching of the inorganic component and the organic component, so that wood has the functions of preventing corrosion and insects, retarding inflaming, being waterproof and the like. All the components are not polymerized by themselves and can meet production requirements; the combination capacity of the components with the wood is high; the leach resistance is high; the obtained modified wood is good in stability, high in waterproof performance and good in corrosion prevention and fire resistance.

The invention discloses a wood fire retardant which comprises the following components by mass: 20%-30% of amidinourea phosphate, 15%-20% of diammonium phosphate, 8%-15% of boric acid, 2%-5% of ammonium molybdate, 5%-10% of sodium octoborate, and 20%-50% of silica sol, and the silica content in the silicon sol is 20wt%-30wt%. The beneficial effect is that the wood fire retardant has the advantages of flame retardance of the amidinourea phosphate, diammonium phosphate, boric acid and silicon compound, smoke inhibition property of the ammonium molybdate, anti erosion performance of the silica sol, and corrosion resistance of the sodium octoborate,. The flame retardant smoke inhibition performances are excellent, the anti erosion performance is significant, and the anti-corrosion effect is good.

The invention discloses an environmental protection wood flame retardation antiseptic. The flame retardation antiseptic comprises the following ingredients, by weight, 15%-20% of guanylurea phosphate, 4%-6% of zinc borate, 8%-12% of diammonium phosphate, 6%-10% of nanometer titanium dioxide, 1%-4% of ammonium molybdate, 6%-9% of cupric dimethyldithio carbamate, 4%-8% of disodium octoborate tetrahydrate, 1%-3% of dioctyl dimethyl ammonium chloride, 1%-3% of tetradecyl benzyl dimethyl ammonium chloride, 1%-3% of 8-hydroxyquinoline, 0.5%-2% of fatty alcohol polyoxyethylene ether and 20%-50% of water. The beneficial effects are that the flame retardation antiseptic has advantages of high efficiency, no poison and meeting environmental protection requirements, and has advantages of excellent flame retardation smoke inhibition performances, broad-spectrum sterilization and insecticidal effects, excellent anticorrosion and mildew-resistant effects and the like for processing wood. The permeability is good, the leaching resistance is strong and the cost is low.

The invention discloses a method for preparing methyl cyclohexanecarboxylate from methyl benzoate through hydrogenation reaction. The methyl cyclohexanecarboxylate is an important organic synthesis intermediate and medical intermediate. A loading ruthenium-based catalyst is used, a methyl benzoate methanol solution is used as a reaction material, the reaction temperature ranges from 50 DEG C to 150 DEG C, the reaction pressure ranges from 0.5 MPa to 5 MPa, the reaction time is between 0.5 h and 5 h, the methyl benzoate conversion rate can reach 95%, the methyl cyclohexanecarboxylate selectivity can reach 96%, the production separation purity is larger than 99%, and the catalyst can be circularly and repeatedly used.

The invention provides a catalytic wet-type oxidation catalyst, and relates to the field of catalysts. The oxidation catalyst comprises an active component and a carrier, wherein the active componentcomprises Au and a modified metal; the modified metal is one or more of Ru, Rh, Pd, Pt, Fe, Co, Ni and Cu; the mass ratio of Au in the active component to the carrier is (0.01-5.0):(85-100); and the mass ratio of the modified metal in the active component to the carrier is (0.05-10.0):(85-100). The catalytic wet-type oxidation catalyst provided by the invention is used for performing catalytic wetoxidation bio-safety treatment on wastewater, the catalyst has good anti-leakage performance and can simultaneously remove ammonia nitrogen and organic pollutants in the wastewater, and the conversion rate of ammonia nitrogen in the wastewater is greater than 84.3%, and the removal rate of COD is greater than 85.9%.

The invention discloses a processing technology of carbonizing of recombined bamboos or recombined woods. The processing technology sequentially comprises the following steps of performing carbonizingtreatment, performing drying, performing gum dipping, performing displaying, performing assembling, performing hot pressing and performing aging, specifically comprises the following steps of duringcarbonizing treatment, placing bamboo bundles in a treatment tank containing 0.2-1 part of a carbonizing agent and 0.05-0.2 part of a catalyst for impregnating and carbonizing, wherein the impregnating temperature is 25-80 DEG C, and the impregnating time is 2-6 hours. The processing technology disclosed by the invention has good mold resistance and good size stability, and has the characteristicsof being simple in technology, low in cost, free from discharging, free from pollution, high in maneuverability, stable in medicament performance, capable of being recycled, and good in absorbability; and valuable timbers can be replaced, and valuable timber resources are saved.

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 a sterilization and smoke suppression halogen-free wood fire retardant. The sterilization and smoke suppression halogen-free wood fire retardant is composed of, by mass, 40-80 parts of guanyl urea phosphate, 30-50 parts of urea, 10-20 parts of zinc borate, 5-10 parts of ammonium molybdate, 3-10 parts of pentaerythritol, 1-20 parts of ammonium dihydrogen phosphate, 12-25 parts of silica sol, 3-15 parts of decabromodiphenyl ether, 5-10 parts of fatty alcohol-polyoxyethylene ether, 1-20 parts of hexadecyltrimethoxysilane, and 1-20 parts of nanometer titania modified by one of Pt, Ag and Fe<3+>. The sterilization and smoke suppression halogen-free wood fire retardant is good in flame retardant property, high in anti-moisture absorption property and leaching resistance, good in stability, completely non-poisonous and low in cost and has the smoke suppression and sterilization effects.

The invention relates to a wood fiber and in particular relates to a wood fiber used for towels. The wood fiber is prepared by the following steps in sequence: material selecting, grinding, wood pulp cooking, fiber extracting, bleaching, dipping fire-retardant treatment, bio-enzyme treatment and curing, wherein in the step of wood pulp cooking, microwaves are adopted to cook wood pulp; in the step of dipping fire-retardant treatment, vacuum-pressure is adopted for fire-retardant treatment; and in the step of bio-enzyme treatment, water is added after the wood-wool-shaped fiber subjected to dipping fire-retardant treatment is wet by adopting a nonionic wetting agent and the wood-wool shaped fiber is subjected to repeated pressure addition and reduction operations in a pressure tank and then cellulose and lipase are added to carry out degradation treatment for 5-8 minutes under the conditions that the pH value is 3-4 and the temperature is 60-70 DEG C, wherein the bath ratio of water solution to the wood fiber is (3-5):1; the dosage of cellulose is 3-5g/L; and the dosage of lipase is 0.5-1.2g/L. A method is short in treatment time and the prepared wood fiber has a fire retardant effect and fluffy and soft handfeel and is especially suitable for preparing towels.

The invention discloses a new wood modification composition and its preparation method and application. The composition is mainly made of the following raw materials: 37% formaldehyde, borax, ammonia water, urea, melamine, boric acid, dicyandiamide phosphate, High carbon alkyl quaternary ammonium salt, sodium lauryl sulfate, sodium alkylphenol ether sulfosuccinate, decylphenol polyoxyethylene ether, N-methylol acrylamide, butyl acrylate, styrene, Isooctyl acrylate, acrylic acid, tertiary dodecyl mercaptan, ammonium persulfate, sodium bicarbonate, sodium metasulfite, chlorinated paraffin with a chlorine content of 50-60%, silica microemulsion with a solid content of 45% and/or 40 % solid content of hydrated aluminum oxide microemulsion. The artificial forest and low-grade wood modified by the composition of the present invention not only have significantly improved physical and mechanical properties, but also have excellent fire-retardant, moth-proof, mildew-proof and anti-corrosion properties, and also overcome the existing wood preservatives. Generally contain defects such as heavy metal ions and other toxic components.

The invention discloses an antibacterial flame retardant wood production method including the steps of pretreatment of wood, preparation of a wood treatment agent, preparation of a wood treatment liquid, dipping treatment, curing treatment, drying treatment and lighting treatment, and the wood treatment agent includes ethyl titanate, isopropyl alcohol, acetyl acetone, water, silica sol, sodium octoborate, imidacloprid, magnesium chloride, zinc borate, diammonium phosphate, ammonium molybdate, isooctanol phosphate and sodium dodecyl sulfate. The beneficial effect is that the antibacterial flame retardant wood production method has the advantages of simple process, high dipping efficiency, low energy consumption, environmental protection, and the like, the treated wood has excellent flame retardant, smoke suppression, anti-corrosion, antibacterial, and other functions, and the antibacterial flame retardant wood is stable in dimension, not easy to crack, good in strength, strong in erosion resistance, and durable.

The invention discloses a flame-retardant oriented strand board and a preparation process thereof. The strand board comprises a core layer and surface layers located on the two sides of the core layer, wherein flame retardants in the surface layers are compounds of phosphorylated chitosan and melamine phosphate borate; and a flame retardant in the core layer is melamine phosphate borate. The melamine phosphate borate is low in hygroscopicity and high in loss resistance, and can be used for performing a charring layer at the high temperature, and therefore high flame retardancy and the long flame retardancy life are achieved; the flame retardants in the surface layers further comprise the phosphorylated chitosan, hydroxyl and amino on the surface of the phosphorylated chitosan can react with formaldehyde, the release amount of free formaldehyde of the oriented strand board is reduced, the purpose of removing the formaldehyde is achieved, and the strand board is more environment-friendly; and moreover, the hygroscopicity of the melamine phosphate borate can be further reduced, and the flame retardancy of the oriented strand board is further improved.

The invention relates to a bio-enzyme wood and bamboo protective agent which is prepared from the following raw materials in parts by weight: 0.05-0.5 part of laccase with the activity of 0.5U/mg, 0.05-0.5 part of enzyme activator, 200-2000 parts of bactericide substrate and 8000-9800 parts of buffer solution with the concentration of 0.1mol/ L and pH value of 4-6. A production method of the protective agent comprises the steps of mixing the rest three raw materials according to the proportion except the laccase, evenly stirring at the temperature of 25-30 DEG C, and feeding the laccase into the mixed solution before use; evenly stirring at the rotating speed of 200-1000r/min under the condition of 25-30 DEG C. When the bio-enzyme wood and bamboo protective agent is used, the wood, the bamboo and products of the wood and the bamboo can be treated in a way of spraying, coating, soaking, pressurizing or vacuum impregnation, and then reaction is carried out for 6-18 hours in the environment of 25-40 DEG C, so that the mould-proof and corrosion-resistant treatment for the wood and the bamboo can be completed. The bio-enzyme wood and bamboo protective agent is simple in production technology, low in cost, convenient to use, non-toxic, free from environment pollution, good in mould-proof and corrosion-resistant effects, high in flow-away resistance and degradability resistance, and lasting in effect.

The invention provides an insect-proof multi-layer eucalyptus wood board and a production method thereof. The production method of the multi-layer board comprises the steps of single plate thin platesorting, thin plate glue applying, cold pressing, hot pressing, standing curing, dust scraping, sanding, repair, trimming and plate pasting, and is characterized in that a layer of insect-proof curedfilm is sprayed at the peripheral surface, the upper surface and the lower surface of a slab before first hot pressing and final hot pressing to prevents glue from being dried too quickly during the hot pressing process and maintain stress inside the multi-layer board, the urea-formaldehyde glue can be fully reacted completely, the formed multi-layer board is not prone to mildewing, in the use process of a user, volatile formaldehyde is also reduced, and after hot pressing, the board is subjected to standing curing, sanding and plate pasting, so that the insect-proof multi-layer eucalyptus wood board product can be obtained by edge sawing and packaging.