91results about How to "Improves loss resistance" patented technology

The invention provides a mercuric chloride low-mercury catalyst and a preparation method thereof. The catalyst adopts active carbon as a carrier to adsorb mercuric chloride, and the formula of the catalyst comprises 8.0 to 10.0 percent of mercuric chloride, 8 to 13 percent of rare earth chloride assistant A, 5 to 25 percent of alkaline earth metal chloride assistant B, 10 to 20 percent of assistant C, and the balance of active carbon. The preparation method comprises the following steps: firstly, soaking the active carbon in hydrochloric acid solution at low temperature for standby; simultaneously dissolving the mercuric chloride, the assistant A, the assistant B and the assistant C together, and soaking the active carton in the solution; performing low-temperature pre-drying on an intermediate product; continuously drying the catalyst; and finally pumping a product at vacuum into a storage silo, packaging and leaving factory. The catalyst can reduce resource consumption and the pressure of treating mercury pollution; simultaneously the production cost is reduced, the poisoning resistance, reduction resistance and loss resistance are greatly improved, the catalytic performance of the catalyst is fully guaranteed, the using time can be prolonged and the using consumption can be reduced; and the catalyst is suitable for polyvinyl chloride manufacturers.

The invention relates to a wood bamboo material corrosion and discoloration prevention triazole composition and a preparation method thereof. The preparation method comprises the following steps: preparing a triazole concentrate comprising 4.1-15.6wt% of a triazole compound, 33.6-67wt% of an ethanol and N,N-dimethyl formamide (DMF) combination, 20.7-26.5wt% of an amine oxide and quaternary ammonium salt combination or a calcium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether (MOA-15) combination, and the balance of water, wherein the triazole compound is hexaconazole, cyproconazole, epoxiconazole, triadimenol, or a propiconazole/tebuconazole combination with the ratio of propiconazole/tebuconazole of 1:0.68-0.95; and adding parts of water to the triazole concentrate, adding 5-chloro-2-methyl-1-isothiazoline-3-one/2-methyl-1-isothiazoline-3-one (CMIT-MIT), and diluting the above obtained solution to obtain a triazole composition operating fluid. When the triazole composition operating fluid is used to carry out vacuum pressurizing treatment on a wood bamboo material, the wood bamboo material is dried until the water content of 20-25%, 5-9% low-molecular weight (the molecular weight is smaller than 1000) phenolic resin (PF) is used to carry out secondary vacuum pressurizing treatment, and the two-stage treated wood bamboo material has excellent corrosion, mildew and discoloration resistance and excellent triazole anti-loss performance after being dried.

The invention relates to a water-soluble triazole antiseptic anti-discoloration insect repellent composite for timber and bamboo wood as well as a preparation method and application thereof. Based on the total weight of the composite, the composite comprises the following components in percentage by weight: 3-8% of triazole compound, 24-48% of organic solvent, 24-40% of cosolvent, 3-10% of N-(2-benzimidazolyl)-methyl carbamate hydrochloride, 0-10% of prochloraz, 0.1-0.8% of esbiothrin insecticide and the balance of water, wherein the triazole compound is propiconazole, tebuconazole, cyproconazole or any combination of propiconazole, tebuconazole and cyproconazole. The composite can be used for processing timber and bamboo wood or timber and bamboo wood products indoor and outdoor. In the processing method, a vacuum pressurization or normal-pressure dipping method are used so that the processed timber and bamboo wood or timber and bamboo wood products have the antiseptic, anti-fungus discoloration and mothproof properties.

A method for manufacturing bamboo redwood includes steps of selecting and cutting off materials, and radially splitting a bamboo barrel into 10 to 15 equal parts by a bamboo cutting machine; removing bamboo green parts, bamboo yellow parts and bamboo joints by a bamboo slicer, and preparing bamboo chips in certain sizes; grinding the bamboo chips, dividing the bamboo chips into threads, subjecting bamboo bundles to activating treatment: applying dyeing adhesive; dipping the bamboo bundles in dyeing phenolic resin adhesive solution for 3 minutes to 5 minutes in a pressurization manner, manually paving dyed adhesive-dipped bamboo bundles longitudinally to form a plate blank with a certain thickness; feeding the blank into a hot press to realize solidifying and forming, and preparing a reconstructed bamboo plate; and finally splitting and sawing the bamboo plate according to needs, and processing and using the bamboo plate. The dyeing phenolic resin adhesive solution contains from 20 to 40% of solid. The crystallinity of bamboo fibers and the specific surface areas of the bamboo bundles are reduced by means of pressurized activating treatment, accessibility and leaching resistance of dye are improved, imitated redwood bamboo furniture and decorative materials are manufactured, and additional values of reconstructed bamboo are increased by 40% at least under the condition that cost is seldom increased.

The invention relates to an environment-friendly long-acting type nano-silver base wood and bamboo material antibacterial mould inhibitor and a preparing method and application thereof. The antibacterial mould inhibitor is rapidly prepared with carboxymethyl chitosan, silver salt and a reducing agent serving as raw materials and water serving as a solvent through an efficient microwave radiation method. According to the prepared nano-silver base wood and bamboo material antibacterial mould inhibitor, silver nanoparticles are uniform in particle size and are evenly distributed in a carboxymethyl chitosan base, and agglomeration is not likely to happen; the nano-silver base wood and bamboo material antibacterial mould inhibitor can be well combined with a wood and bamboo material, has high wide spectrum efficiency and is high in loss resistance and durable in antibacterial effect; and in addition, the particle size is small and viscosity is low so that the antibacterial mould inhibitor can better enter a processed material. According to the method, the raw materials are cheap, the technology is simple, operation is convenient, the production efficiency is high, the product reproducibility is high, no complex and expensive equipment is needed, no pollution is caused to the environment, energy consumption is reduced, and industrial popularization is facilitated.

The invention belongs to the technical field of wood-plastic composites and preparation methods of the wood-plastic composites, and particularly relates to a high-performance wood-plastic material for 3D printing forming and a preparation method of the wood-plastic material. A high-performance wood-plastic wire rod for 3D printing and a preparation method of the wood-plastic wire rod aim to solve the problems of poor size stability and low mechanical strength of the existing wood-plastic material for the 3D printing. The wood-plastic wire rod for the 3D printing forming comprises a modified plant material, engineering plastic or a plastic alloy, a coupling agent or an interfacial compatibilizer, a lubricant, a heat stabilizer and a mineral packing, wherein the modified plant material is a plant material after modification. The preparation method of the wood-plastic wire rod comprises the steps that the plant material is subjected to modification treatment and mixed with other raw materials (or a modifier, the plant material and extruded raw materials are directly mixed); melt blending is performed; a blend compound is added to an extruder; extrusion and wire drawing are performed to obtain the wood-plastic wire rod for the 3D printing.

The invention belongs to a wood and bamboo material corrosion and mold prevention modified combination agent and a wood and bamboo material treating method. The wood and bamboo material corrosion andmold prevention modified combination agent comprises, by weight, 0.04-0.10 part of triazole, 0.05-0.12 part of 3-iodo-2-propynyl butylcarbamate, 1-6 parts of water soluble dyes, 1-6 parts of dyeing assistants, 1-6 parts of fire retardants and 1-10 parts of polymerization inhibitors. A wood and bamboo material treated through the modified combination agent can simultaneously have the functions of corrosion prevention, mold prevention, dyeing, inflaming retarding and pharmaceutical composition loss resistance, and has the advantages of easy operation, easy implementation, low preparation and using cost, good durability and long service life.

The invention relates to a method for manufacturing wood blind blades with anti-firing and anti-flaming functions, which belongs to a wood processing industry. The method for manufacturing anti-flaming wood blind blades sequentially comprises the following steps of wood blind blades manufacture, dipping anti-flaming treatment, drying treatment, sanding treatment and paint treatment, wherein the dipping anti-flaming treatment comprises primary dipping and secondary dipping, the primary dipping is carried out by dipping the wood blind blades into water solution of a primary flame retardant of a N-P-B system, the second dipping is carried out by taking out single plates after the primary dipping and putting the single plates in the water solution of a secondary flame retardant, the dipping time is 0.5-2 hours, the dipping temperature is 50-90 DEG C, and the secondary flame retardant comprises sodium silicate and transition metal salt. The method disclosed by the invention has the advantages of solving the flammable problem of the wood blind blades, having high stability, having strong leaching resistance and being safe and environment-friendly.

The invention discloses a multiple-effect timber fire retardant and its preparation method and treatment process. The multiple-effect timber fire retardant comprises, by mass, 20-40% of phosphoric acid, 10-20% of dicyandiamide, 10-20% of melamine, 5-10% of boric acid, 5-20% of ammonium polyphosphate, 5-20% of silica sol, 3-8% of a smoke inhibitor, 0.5-3% of a surfactant and 0.1-2% of a mildew inhibitor. Compared with the existing timber fire retardant, the multiple-effect timber fire retardant has good fire retardant performances, good smoke inhibition performances, good loss resistance performances, large timber impregnation depth and good corrosion-resistant, mildew-resistant and mothproof effects. The preparation method has simple processes. The multiple-effect timber fire retardant has good timber protection and processing effects and is economical and practical.

The invention discloses a method of treating wood by means of impregnation in a compounded mildewproof preservative liquid and high-temperature thermal treatment. The method comprises the following steps: uniformly mixing a copper-containing compound impregnation liquid with a mildew preventive chitosan copper complex solution, a camphor tree leaf extract solution, a burdock leaf extract medicinalliquid and a nano titanium dioxide-Chinese herbal medicine compound preservative liquid to obtain the compounded mildewproof preservative liquid; impregnating wood in water for ultrasonic cleaning, drying the wood to a constant weight, impregnating the wood in the compounded mildewproof preservative liquid to be treated in a vacuum state, then pressurizing and impregnating the wood, taking the wood out, and drying the wood to a constant weight; putting the impregnated wood in a thermal treatment tank, setting the pressure of a steam generator and the vapor carbonizing pressure, and discharging oxygen in the thermal treatment tank after treatment; stopping steam thermal treatment, starting electric heating treatment, and setting the thermal treatment temperature for thermal treatment; andstarting the steam generator and introducing steam into the tank to reduce the temperature to obtain the mildewproof preservative wood. The wood is impregnated and pressurized by the compounded mildewproof preservative liquid, the thermally treated wood is obtained by applying a wood thermal treatment technology, and the mildewproof efficacy of the wood is good.

The invention relates to the technical field of preservative treatment material production, and discloses a process method for modifying preservative treatment material based on nanometer silicon dioxide and emulsified wax. The process method mainly comprises the following steps of firstly, performing pretreatment, secondly, preparing a nanometer silicon dioxide modifier, next, preparing emulsified wax or preservative modification liquid, then carrying out three-time dipping treatment, and finally drying. According to the process method for modifying the preservative treatment material based on the nanometer silicon dioxide and the emulsified wax, the preservative treatment material has no obvious appearance change after being subjected to the treatment, however, size stability, density, surface hardness, anti-loss performance, fire resistance and weather resistance of the preservative treatment material are greatly improved.

The invention provides a wet oxidation catalyst and a preparation method thereof. The preparation method for the wet oxidation catalyst comprises the steps of mixing precursor manganese salt and water; dripping an alkaline solution to an obtained mixture to adjust the pH value to an alkaline value; dripping oxidizing agents such as hydrogen peroxide and so on to the mixture to carry out oxidation reaction on the mixture; after mixing the oxidized manganese salt solution and hydrogen peroxide, carrying out hydrothermal reaction on the mixed manganese salt solution and hydrogen peroxide; filtering an obtained reactant to obtain a solid; drying and roasting the obtained solid in the oxygen atmosphere to obtain the catalyst. The wet oxidation catalyst provided by the invention has the advantages of low price, good low temperature activity and stability and good loss resistance.

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 discloses a wood preservative modification treatment method. The wood preservative modification treatment method is characterized in that wood is treated by using a chemical agent containing quercetin and oxalic acid, wherein the quercetin is grafted to the cell wall of the wood through the oxalic acid. The specific method comprises the steps that 5-20 parts of quercetin and 2-50 parts of oxalic acid are weighed and dissolved in 150-300 parts of absolute ethyl alcohol, 0.4-2 parts of p-toluenesulfonic acid is added, and the chemical agent for treating wood is formed; the wood tobe treated is soaked for 48-96 h at normal temperature and normal pressure; and the impregnated wood blocks are placed in the environment of 120 DEG C to be treated for 2-8 h. According to the method,effective chemical bond combination can be formed between quercetin and wood cell walls, the durability of wood is improved, the loss resistance of the wood is improved, the technical problem that quercetin serving as a botanical natural antibacterial component is difficult to fix and easy to lose in the wood is solved, and the application of quercetin in the technical field of wood preservationis expanded.

The invention discloses a heat treatment and chemical treatment method for improving mildew-proof and antibacterial effects of bamboo strips. The method comprises the steps that mildew-free three-year-old moso bamboo strips which are complete in appearance are selected, bamboo inner skin and bamboo outer skin are removed, the bamboo strips are soaked in a water bath then are taken out and are soaked in a hydrogen peroxide solution, then are taken out, are subjected to fully washing and are soaked in cleat water, and then are put into a boric acid solution for treatment, so that chemically treated moso bamboo strips are obtained; then dry heat treatment is carried out to obtain the bamboo strips subjected to the heat treatment; nano-zinc oxide modified by a silane coupling agent, cinnamyl alcohol and ethanol are mixed and are uniformed after ultrasonic dispersion, and then are sprayed on the pretreated bamboo strips; and a halloysite nanotube-loaded mildew-proof agent is added into an organic silicon-acrylic emulsion, after stirring, coating treatment is carried out on the moso bamboo strips subjected to spraying treatment in a brushing mode, and coated bamboo strip samples are placed in a dark place, and are ventilated and dried by air. According to the heat treatment and chemical treatment method, the silane modified zinc oxide has an inhibition effect on growth of mould, andcan change the permeability of a mould cell membrane so that the metabolism of the mould can be influenced.

The invention discloses a preparation method of a wood super-hydrophobic sterilization mildew-proof functional modifier and a wood modification method. The invention relates to the preparation methodof the wood modifier and the wood modification method, and mainly aims at solving the problems that an existing wood modifier is high in toxicity, short in storage time at room temperature and poor inloss resistance. The preparation method comprises the following steps: (1) weighing hydrophobic polymer resin, a functional additive, a surfactant and a solvent, and carrying out mixing by stirring to obtain a functional reagent A; (2) weighing nano-particles, polydimethylsiloxane and toluene, carrying out stirring after mixing, and carrying out cleaning, centrifuging and drying to obtain a functional reagent B; and (3) adding the functional reagent B into the functional reagent A, and carrying out ultrasonic treatment to obtain the wood modifier. When the modifier prepared by the method is used for modifying wood, loss resistance of the wood is improved by 90% or above, and the storage period at room temperature exceeds 2 years. The wood modifier has a super-hydrophobic property. Anticorrosion and bactericidal performance of the wood is improved by 92% or above. The invention belongs to the field of wood modifiers.