342results about How to "High sterilization rate" patented technology

The invention relates to a hand-care disposable disinfection gel and a preparation method thereof. The hand-care disposable disinfection gel comprises ethanol, a bactericide, a cosolvent, a thickener, an emollient, essence and a PH regulator, wherein the essence is used as a carrier to cover pungent odor of ethanol. The hand-care disposable disinfection gel has the advantages of being bactericidal, washing-free, not sticky and greasy, and comfortable in smell, and caring hands. The preparation method comprises the following steps: the thickener swells in purified water fully to prepare a liquid A; meanwhile, the bactericide and the cosolvent are added in ethanol to be mixed uniformly to prepare a liquid B; then, the liquid B is poured into the liquid A; the emollient and the essence are poured in the liquid A, after purified water is supplemented to be sufficient, the PH regulator is added to regulate the PH value to 6.0-8.0, and the uniform mixing is performed.

The invention provides a hand sanitizer containing chlorine dioxide, which is prepared by the following components according to a certain weight ratio: surfactant, chelant, humectant, thickener, water-soluble body lotion, fungicide precursor, pH regulator, essence and deionized water. The hand sanitizer provided by the invention has mild, safe and environment-friendly properties, thus cleaning, skin care and sterilization can be simultaneously finished; the chlorine dioxide is selected to serve as a component of fungicide, thereby having good sterilization effect, short action time and high sterilization ratio; the hand sanitizer can take effect as soon as being used because germs can not generate tolerance on the hand sanitizer; and in addition, during the using process of the hand sanitizer, carcinogen such as chloroform and the like can not be generated, the biodegradation rate of the surfactant is more than 90%, satisfies the national requirements, and has no toxicity and harm and environment protection, thereby people can use the product for long term trustingly.

The invention discloses a nano-silver peroxide composite antibacterial solution and a preparation method thereof. The antibacterial solution is characterized in that the antibacterial solution comprises following raw materials based on 1000 mL of the nano-silver peroxide composite antibacterial solution: 1-100 g of a nano-silver stabilizing agent, 1-100 g of auxiliary agents, 0.02-2 g of a silver source (based on silver), 0-20 g of a reductant, 0-50 g of a dispersion protection agent and 0.2-100 g of a peroxide, with the balance being purified water. Nano-silver particles of the antibacterial solution have a size of 1-10 nm, and show monodispersity and no agglomeration. The antibacterial solution is colorless, transparent, color change resistant, strongly stable, wide in pH controllable range, and the like. In addition, under conditions that the concentrations of the nano-silver and the peroxide are both low, the antibacterial solution can reach a high sterilizing rate in short time, and has lasting bactericidal effects. The preparation method has characteristics of simple operation, wide parameter adjustable range, low energy consumption, short period, and the like, and is suitable for large-scale production.

The present invention discloses a complex oilfield water flooding bactericide. The complex oilfield water flooding bactericide is prepared from the following raw materials by weight: 25-35 parts of saccharide gemini quaternary ammonium salt, 2-5 parts of alkyl glucoside, 10-15 parts of quaternary phosphonium salt, 4-10 parts of isothiazolinone, and 5-10 parts of dithiocyano-methane. The bactericide has strong bactericidal effect, can effectively remove the sulfate-reducing bacteria, iron bacteria and saprophytes in water, and avoid corrosion and clogging of pipelines and equipment caused by bacteria, and has the advantages of simple ingredients, easy preparation, fastness, efficiency, low cost, high sterilization rate, low usage and little side effects.

The invention discloses decorative wall material diatom ooze. The decorative wall material diatom ooze is prepared from the following raw materials: 325-mesh kieselguhr, 325-mesh talcum powder, a plant coagulant, white cement 325#, hydroxyethylmethylcellulose (HEMC), negative ion powder, a nano-photocatalyst, lignocelluloses, strain cellulose, 200-mesh coarse whiting, a dry powder defoaming agent, a dry powder retarder, titanium dioxide, mica powder, inorganic bentonite, 80 to 120-mesh snowflake white, multifunctional powder, a water reducing agent, gluconic acid sodium salt, attapulgite and bamboo charcoal powder. The decorative wall material diatom ooze is low in cost, the elimination rate and dissolution rate to formaldehyde dissociated in indoor air reach up to not less than 96 percent, and European standards and national standards are completely met; the decorative wall material diatom ooze not only has the efficacies of preventing fire and retarding inflaming, removing odor, adjusting indoor humidity and disinfecting, reducing noise and sound, insulating and saving energy, improving sleep, cleaning trash and self-cleaning and the like, but also can enable the humidity of air to be kept between 40 to 60 DEG C, the heat-insulating property of the decorative wall material diatom ooze is 2 times or above that of a current diatom ooze coating, 3400 negative oxygen ions or above can be released every second from each square centimeter, far infrared rays also can be released, and the decorative wall material diatom ooze has a healthcare function on a human body.

The invention provides a preparation method and application of a nano copper-zinc compound antibacterial material, belongs to the field of environment engineering and particularly relates to the field of antibacterial materials. The prepared nano copper-zinc compound antibacterial material has a good sterilizing effect and can be used for preparing antibacterial paint. The preparation method of the nano copper-zinc compound antibacterial material specially comprises the following steps of dissolving zinc salt and copper salt into water to form a copper-zinc solution, adding absolute ethyl alcohol of the same volume as the copper-zinc solution and performing ultrasonic treatment to obtain a solution I; adjusting pH of the solution I as 5.5 to 6.7, adding citric acid monohydrate, stirring and performing ultrasonic treatment until the solution has no flocculation to obtain a solution II; heating the solution II in a water bath mode, stirring, centrifuging to obtain precipitation, washing the precipitation, drying, roasting and cooling to obtain copper-zinc complex; mixing the copper-zinc complex with graphene in an N,N-dimethylacetamide solution and performing ultrasonic treatment to obtain a solution III; centrifuging the solution III to obtain precipitation, washing the precipitation and drying to obtain the nano copper-zinc compound antibacterial matearil.

The invention belongs to the technical field of sanitizers, and particularly relates to a traditional Chinese medicine sanitizer and a preparation method thereof. The sanitizer is prepared from the following Chinese herbal medicine raw materials including, by weight, 10-30 parts of wormwood, 1-5 parts of garlic, 10-30 parts of honeysuckles, 5-21 parts of myrcia, 10-30 parts of cordate houttuynia and 2-15 parts of astragalus membranaceus. The garlic is table vinegar extractive liquid of garlic, and the weight ratio of the garlic to the table vinegar is 1:(3-10); and the sanitizer prepared from the Chinese herbal medicine raw materials comprises, by weight, 10-30% of chlorogenic acid. The prepared sanitizer has an obvious bactericidal effect on common germs such as staphylococcus aureus, escherichia coli, staphylococcus albus and pseudomonas aeruginosa in air; and the sanitizer has the advantages of being quick in effect initiating, long in duration time, low in cost, simple in preparation technique and the like.

The invention relates to a fabric softener with bactericidal function and a preparation method thereof. The fabric softener comprises the following components in portion by weight: 4.5 to 10 portions of quaternary amine ester (C18), 1 to 3 portions of dialkyl quaternary ammonium salt (C8-10), 1 to 2 portions of fatty alcohol polyoxyethylene ether (5), 0.5 to 1.5 portions of fatty alcohol polyoxyethylene ether (7), 0.1 to 0.5 portion of essence, 0.05 to 0.3 portion of citric acid, and 82.7 to 92.8 portions of deionized water. The fabric softener has good solubility and good softness, protects the fabric, has strong sterilizing power, and can reduce washing cost.

The invention discloses a traditional Chinese medicinal composition for damping disinfection and air purification. The composition is prepared through using the following raw materials, by weight, 20-30 parts of Artemisia argyi, 15-25 parts of Artemisia carvifolia, 10-15 parts of Herba Schizonepetae, 14-18 parts of Wrinkled Gianthyssop, 12-16 parts of Herba Centipedae, 5-10 parts of Cyrtomium fortunei, 9-13 parts of purpleflower holly bark, 10-15 parts of Divaricate Saposhnikovia Root, 8-12 parts of Chinese gall, 6-9 parts of Crocus sativus, 10-15 parts of Radix Paeoniae Rubra, 5-10 parts of Leaf of Tasmanian Bluegum, 7-11 parts of betel nut shell, 12-16 parts of Root of Twinleaf Zzornia,10-15 parts of Herba Schizonepetae, 14-18 parts of Salvia officinalis, 5-10 parts of Fructus Kochiae, 18-22 parts of paulownia leaf, 10-15 parts of Atractylodes lancea and 8-12 parts of leaf of Terminalia catappa. The traditional Chinese medicinal fumigant composition has a strong sterilization performance, has a high disinfection rate on bacteria in air in a henhouse, and can purify the air in the henhouse, reduce the respiratory tract diseases of chickens and reduce the mortality, so the composition has the characteristics of chicken growth performance improvement, small irritation, no stress response and use convenience.

The invention provides a reverse osmosis membrane scale inhibitor. The reverse osmosis membrane scale inhibitor mainly comprises organic phosphonic acid, organic carboxylic polymers, sulfonic copolymers, a quaternary phosphonium salt, and methane dithiocyanate. The invention further provides an application of the reverse osmosis membrane scale inhibitor in scale inhibition of a reverse osmosis system. When used for reverse osmosis water treatment, the reverse osmosis membrane scale inhibitor provided by the invention can effectively eliminate membrane pollution caused by deposition of CaCO3, CaSO4, SiO2 and silicate; working efficiency of the reverse osmosis system is improved, service lives of the reverse osmosis membrane and reverse osmosis equipment are prolonged, and reverse osmosis cost is reduced; the reverse osmosis membrane scale inhibitor is compatible with various common flocculating agents such as polyaluminum chloride and cationic polyacrylamide; and a pH value is not required to regulate.

The invention provides a preparation method of nanometer titanium dioxide composite nanometer silver sol. The preparation method comprises the following steps of 1, dissolving titanyl sulfate or titanium sulfate in water, carrying out stirring, adjusting pH by ammonium hydroxide and carrying out stirring, 2, adding citric acid as a stabilizing agent into titanium hydroxide, carrying out stirring, adding hydrogen peroxide as an oxidizing agent into the mixed solution, carrying out full stirring and standing the mixture for 10h or more, 3, carrying out stirring heating reflux on the reaction solution in an oil bath at a temperature of 90-120 DEG C for 2-6h, 4, dissolving a protective agent and a reducer into the nanometer titanium dioxide sol to obtain a reduction solution, 5, dissolving a silver-containing oxidizing agent in water to obtain an oxidation solution, 6, putting the reduction solution into a reactor with a stirring reflux device at a temperature of 100-160 DEG C, and dropwisely adding the silver-containing oxidizing agent into the reduction solution, and 7, after dropwise addition, carrying out heating reflux stirring for 1-6h to obtain the nanometer titanium dioxide composite nanometer silver sol.

The present invention relates to a water quality purifying equipment formed from high-frequency pulse power supply, active oxygen generator, vortex mixer and infrared controller. It adopts the low-temp. plasma technique to produce the free radicals of active oxygen, and utilizes the technique of activating water particles and vortex-mixing lots of free radicals, at the same time uses induction control switch, safe isolated transformer, antispattering water-saving device and perform filter so as to make the complete equipment work have the advantages of stable and reliable preformance, high sterilization efficiency, quick speed, simple structure, having no residue and having no secondary pollution, so that it has extensive application.

The invention discloses a preparation method of a pure titanium surface Ag / Sr co-doped TiO2 porous film. A pure titanium sample and a TiAg alloy target are oppositely put in a magnetron sputtering film plating furnace, and argon is fed to pre-sputter and clean the sample after vacuumizing; then, a source pole and workpiece voltage are switched on to form a TiAg alloy film on the surface of the sample through the argon ion bombardment and the metal ion deposition and dispersion; and an alloyed sample, serving as an anode, is dip in electrolyte, a stainless steel electrolytic cell serves as a cathode, and a direct-current pulse micro-arc oxidation device is adopted to perform the micro-arc oxidation to obtain the Ag / Sr co-doped TiO2 porous film under a certain conditions of current density, duty ratio and direct-current pulse frequency. The film, prepared by the method, is excellent in bonding force, has long-acting antibacterial property and excellent biocompatibility, and is simple in operation, excellent in repeatability, suitable for large-batch production and capable of preparing advanced medical implant bone substitute materials.

The invention relates to a multifunctional efficient air purifying agent and a using method thereof, and belongs to the technical field of indoor air purification and treatment. The multifunctional efficient air purifying agent is made of food grade raw materials in a compound mode and composed of water, a bactericide, a formaldehyde-removing agent, a catalyst, TVOC dissolving agent and a stabilization dispersing agent. The using method of the multifunctional efficient air purifying agent comprises the steps that the purifying agent is sprayed on a rotating wheel film forming device through a feeding box to form a liquid film, and polluted air is sucked by a fan to pass through the liquid film to be purified. The multifunctional efficient air purifying agent is non-toxic and innocuous and has the effects of rapidly removing bacteria, removing formaldehyde, lowering PM2.5 and TVOC and the like in a long-acting mode. The using method overcomes adverse effects caused by direct contact when an air purifying agent is sprayed in air traditionally. According to the using method, the air purifying agent is detected in a 30 m<3> standard experimental cabin, and the formaldehyde removing rate, the bacteria removing rate, the PM2.5 removing rate and the TVOC removing rate within one hour can be higher than 95%.

The invention relates to a cultivation method of pleurotus geesteranus and belongs to the technical field of cultivation of the pleurotus geesteranus. The cultivation method of the pleurotus geesteranus comprises the following steps: (1) batching: preparing a cultivation material by mixing and composting cottonseed hulls, corn straws, wheat bran, sawdust, peanut cake powder, grape residues, pitaya stems, passion fruit peel, banana peel, bee pupae, beancurd, durian peel, pineapple peel, expired yogurt, coffee residues and lime, and adjusting the moisture content to be 65 to 70 percent and the pH value to be 8 to 10; (2) bagging; (3) sterilizing; (4) inoculating; (5) performing mycelium culture; (6) performing fruiting management; and (7) harvesting. According to the cultivation method of the pleurotus geesteranus, the raw materials of the cultivation materials are wide in source and rich in nutrient, and the yield of the pleurotus geesteranus can be increased.

The invention discloses an alkyl pyridinium quaternary ammonium salt corrosion inhibitor used for inhibiting carbon dioxide corrosion and a preparation method thereof, and belongs to the technical field of oil field chemicals. The corrosion inhibitor comprises, by weight, composite alkyl pyridinium quaternary ammonium salt, benzalkonium chloride, polyoxyethylene octylphenol ether and / or fatty alcohol-polyoxyethylene ether, thiourea, ethanediol, monoethanolamine and water. The preparation method of the corrosion inhibitor comprises the steps that after being obtained through reactive synthesis of alkyl pyridinium, benzyl chloride, DMF, the ethanediol and the water, the quaternary ammonium salt is compounded with the benzalkonium chloride, the polyoxyethylene octylphenol ether, the fatty alcohol-polyoxyethylene ether, organic solvent, the thiourea, the monoethanolamine and the water. The corrosion inhibitor and the preparation method of the corrosion inhibitor have the advantages that the process route is simple, the synthetic product is free of three-waste pollution, and the cost is low; the raw materials are easy to purchase, and using is convenient.

The invention discloses a modified nano TiO2 / Ag / bamboo charcoal composite material and a method for killing microorganisms in medical sewage by virtue of the same. A preparation method of the composite material comprises the following steps of preparing stable modified TiO2 sol by a sol-gel method, performing ultrasonic treatment to enable titanium dioxide particles to enter internal pores of bamboo charcoal, and roasting to prepare the nano-level titanium dioxide which has photocatalytic activity and is loaded on the bamboo charcoal. According to the invention, very little hydrogen peroxide is added into the medical sewage with certain concentration to adjust the pH to 3-4, the composite material is added into the sewage (wherein the adding amount of the composite material is about 20g / L), and then the microorganisms in the medical sewage can be killed efficiently in the sunlight. After the sewage is treated in the sunlight for 10 minutes, the observation in a microscope shows that a good killing effect for the microorganisms in the medical sewage is obtained.

The invention discloses an environment-friendly waste cutting fluid circulation treatment method and a purification device and belongs to the technical field of a cutting fluid. The method comprises heating a waste cutting fluid sent from a cutting fluid circulation tank to 30 to 42 DEG C, carrying out coarse filtration, then feeding the filtrate into an oil-water separation tank, carrying out primary oil-water separation through an oil scraper assembly, feeding heavy oil from an overflow port of the oil-water separation tank to an oil-water separator, carrying out secondary oil-water separation to obtain a 1-level clear liquid, filtering to remove impurities in the 1-level clear liquid through filter films having different network densities to obtain a 2-level clear liquid, conveying the 2-level clear liquid into a waste cutting liquid work tank, adjusting pH of the 2-level clear liquid to greater than or equal to 9, adding an antibacterial agent into the 2-level clear liquid to obtain a 3-level clear liquid, conveying the 3-level clear liquid into the cutting fluid circulation tank and carrying out recycling. The method has the advantages of simple processes, low energy consumption and high water recovery rate. The separated cutting liquid can be used for preparation of a cutting liquid or be conveyed into a sewage treatment system, subjected to biochemical treatment and discharged.

The invention discloses a preparation method of modified titanium dioxide powder, and belongs to the technical field of material chemistry. The preparation method of the modified titanium dioxide powder comprises the following steps: (S1) firstly mixing a metal ion compound with the titanium dioxide powder, adding a dispersing agent and absolute ethyl alcohol and mixing evenly to obtain a ball-milling material; (S2) carrying out ball-milling on a ball mill tank containing a grinding ball and the ball-milling material in a ball mill; and (S3) cooling a ball-milled sample to room temperature, sequentially carrying out ultrasonic treatment, drying and grinding to obtain the modified titanium dioxide powder. The invention further discloses the modified titanium dioxide powder prepared by adopting the preparation method of the modified titanium dioxide powder. The preparation method of the modified titanium dioxide powder is simple and convenient to operate and wide in application range; the particle sizes of the titanium dioxide powder are easily regulated and controlled; the yield of the titanium dioxide powder is high; industrial production can be achieved; and the cost is low.

The invention provides an antibacterial and mildew-proof ceramic tile and a preparation method thereof. The antibacterial and mildew-proof ceramic tile comprises a green body material, glaze and antibacterial agents, the glaze comprises feldspar, alkali metal carbonate, silver oxide and rare-earth metal oxide, and the antibacterial agents comprise nano-zinc oxide. The method includes the steps: pressing the green body material to obtain a ceramic tile green body; spraying the glaze to the surface of the ceramic tile green body and then sintering the ceramic tile green body to obtain a green ceramic tile; performing post-treatment on the green ceramic tile by the aid of solution containing the antibacterial agents to obtain the antibacterial and mildew-proof ceramic tile. The silver oxide and the rare-earth metal oxide serve as ceramic tile glaze components, silver oxide particles are fixed by forming a stable compound, silver loss in the use process is avoided, the antibacterial agentsare added into an antibacterial ceramic tile glaze layer to form negative-valence silver ions with excellent bactericidal activity, the antibacterial agents serve as photocatalysts participating in generation of various antibacterial groups, and antibacterial persistence of the surface of the ceramic tile is guaranteed.

The invention relates to the field of chemical industry, and discloses a potassium monopersulfate composite effervescent tablet for improving a water quality substrate of a water body and a preparation method thereof. The effervescent tablet consists of the following components in parts by weight: 20-50 parts of potassium monopersulfate composite salt, 10-20 parts of sodium persulfate, sodium percarbonate or percarbonyl amine, 0-20 parts of anhydrous sodium sulfate, anhydrous magnesium sulfate or calcium chloride, 5-10 parts of sodium carbonate or sodium bicarbonate, 10-20 parts of citric acidor malic acid, 3-5 parts of polyvinylpyrrolidone or magnesium lauryl sulfate, and 0.1-0.5 part of magnesium stearate or calcium stearate. The compound effervescent tablet prepared by the method has better sterilization effect, oxygen increasing effect, detoxification effect and stability than those of similar products.

The invention discloses a wet garbage treatment system. The wet garbage treatment system comprises a mounting rack table, and is characterized in that a water storage tank, an evaporator and a disinfecting box are sequentially mounted on the upper end of the mounting rack table from left to right, a water outlet valve is fixedly inserted into the lower end of the water storage tank, a first connecting pipe is connected to the water outlet valve, the first connecting pipe is connected to the water inlet end of the evaporator, a second connecting pipe is mounted at the water outlet end of the evaporator, a second connecting pipe is inserted into the disinfecting box, and a plurality of fixing rods are symmetrically mounted on the upper top wall of the disinfecting box. According to the system, the disinfecting box is used for carrying out high-temperature steam disinfection and sterilization on the wet garbage, so that the threat of germs to personnel is reduced; the wet garbage is driedby a drying discharge box, so that the weight and occupied space of the wet garbage are reduced, and the convenience of transportation is increased; and the moisture of the steam sterilization and the moisture contained in the wet garbage can be evaporated and collected into the water storage tank through a gas return pipe and a gas collection cover to be recycled, and the environmental protection capability of the device is improved.

The invention provides an anticoagulant and antibacterial indwelling needle sleeve pipe and its preparation method. The anticoagulant and antibacterial indwelling needle sleeve pipe includes an indwelling needle sleeve pipe and an anticoagulant and antibacterial coating grafted on the indwelling needle sleeve pipe through photo initiation. The coating includes heparin sodium and hydrogen abstraction type quaternary ammonium salt with the structure shown in the formula I. A hydrogen extraction and recombination reaction occurs between hydrogen abstraction type quaternary ammonium salt, the surface of an indwelling needle sleeve pipe base body and heparin molecules, the adhesion property of the coating is thus very high, the adhesion stability is good, and the coating has high universality and practicability; the anticoagulant and antibacterial indwelling needle sleeve pipe has non-release type anticoagulant and antibacterial effects, during the sleeve pipe penetration, transfusion, blood flow scouring and other processes, components of the coating are not dissociated and do not come off, the anticoagulant and antibacterial effects are lasting, and the risk that quaternary ammonium salt leached out through dissociation enters veins and thus general toxicity is caused is reduced. The formula I is shown in the description, wherein R is selected from chemical structures (shown in the description) or chemical structures (shown in the description), R1 and R2 are independently selected from H or C1-C4 alkyl groups, R3 is selected from C8-C16 alkyl groups, and X- is selected from Cl-, Br- or I-.

The invention discloses a sterilizing toilet cleaning block which is prepared from raw materials comprising macromolecule adhesive, bactericide, dye, a surface active agent and cleaning auxiliary agent. The bactericide adopts nonoxidative bactericide. The sterilizing toilet cleaning block consists of nonoxidative bactericide and dye; and the dye can not discolor or fade when in use, and the sterilizing toilet cleaning block has higher sterilizing effect.

The invention relates to a herding veterinarian sterilizing water, which is widely applicable for the disinfection and sterilization of various cultured species in different herding and cultivation industries, and aims at high sterilizing effects, good stability and high safety performance. The ingredients of the sterilizing water of the invention by weight percentage are as follows: 0.4 to 0.9 percent of type B propiolactone, 0.2 to 0.4 percent of amino acid hydrochloride, 0.01 to 0.06 percent of stable chlorine dioxide, 0.1 to 4 percents of activated antibacterial factor Lactoferrin, 0.05 to 0.2 percent of nano silver suspension, and the other is purified water. The preparation method of the sterilizing water of the invention comprises that: the type B propiolactone is heated and dissolved in water, and added with nano silver suspension to form a mixture indicator; the amino acid hydrochloride, the stable chlorine dioxide and the activated antibacterial factor are respectively heated, dissolved and coated, and the coated amino acid dydrochloride is added into the mixture indicator, well stirred, and cooled and packed.

The invention provides an instant antibacterial master batch for washing and a preparation method thereof, and belongs to the technical field of antibiosis. The instant antibacterial master batch forwashing is prepared by the following method: S01, preparing a composite antibacterial agent from a guanidine salt polymer and polyethylene glycol by a physical mixing method according to a ratio; S02,mixing the guanidine salt polymer / polyethylene glycol antibacterial agent with a zinc-loaded antibacterial agent, parachlorometaxylenol and dioctyl sodium sulfosuccinate; S03, uniformly mixing the guanidine salt polymer / polyethylene glycol / zinc-loaded antibacterial agent / parachlorometaxylenol / dioctyl succinate sodium sulfonate with water, a surfactant, a builder, sodium carboxymethyl cellulose and essence, and performing extrusion granulation by using a banburying kneading extrusion bracing granulator; and S04, performing coating treatment by using sodium stearate micro powder. The prepared instant antibacterial master batch for washing is good in flowability and not prone to adhesion, can be rapidly dissolved after encountering water, and has the functions of rapid sterilization and degerming.

The invention provides an antibacterial and anticoagulant coating. The antibacterial and anticoagulant coating comprises an organosilicon quaternary ammonium salt heparin compound; the organosilicon quaternary ammonium salt heparin compound is obtained after heparin sodium and organosilicon quaternary ammonium salt react; and the organosilicon quaternary ammonium salt includes a structure shown asa formula (I) (please see the specifications for the formula (I)). Siloxane groups of the organosilicon quaternary ammonium salt in the coating can be in chemical bond connection with heparin sodiummolecules and the surface of a hydroxylated matrix material correspondingly, heparin and the organosilicon quaternary ammonium salt in the coating are mutually crosslinked to form a three-dimensionalnetwork structure, the stability of the coating is improved, meanwhile, the coating and a coated base body are subjected to cross-linking point type chemical bond cross-linking, the stability of the coating and the coated base body is greatly improved, thus dissociation and falling of the coating in the intervening, using and indwelling processes of a medical catheter are avoided, and the anticoagulant and antibacterial effects are more durable. In addition, the coating can be formed only by adopting a heating curing mode, the process is simpler, operation is easy, and feasibility is high.

The invention belongs to the field of antibacterial materials and discloses long-service-life organic silicon polymer antibacterial liquid, a preparation method thereof and a preparation method of antibacterial coating. The long-service-life organic silicon polymer antibacterial liquid comprises, by weight, 60-80 parts of organosilicon quaternary ammonium salt, 3-8 parts of glacial acetic acid, 5-10 parts of methyltris(methylethylketoximino)silane, 0.1-3 parts of organic bismuth catalyst and 10-20 parts of amino-alkyl alkoxy silane. The organic silicon polymer antibacterial and anti-mildew liquid is simple in preparation process, safe, nontoxic, green, environmentally friendly, lasting and high in antibacterial effect, long in service life and capable of satisfying the living space requirements of safety, health and cleanness and conforms to the green and environment-friendly consumption concept of people.

The invention relates to a new method for loading TiO2 film or the TiO2 film doped with Ag+, Cu2+, Co2+ and iron oxide on the inner surface or the outer surface of a quartz tube. The method comprises the following steps: firstly, preparing TiO2 sol of different concentrations by n-butyl titanate through hydrolysis; secondly, evenly coating the TiO2 sol on the outer surface or the inner surface of the quartz tube through the czochralski method or the impregnation method; then putting the quartz tube into a muffle furnace for calcining so as to get the quartz tube with even surface coating. By controlling the sol composition and the coating thickness, the quartz tubes which are provided with significant hydrophobic effect and high weatherability and vary from colorless to purple and golden yellow can be obtained. The method can be applied to a variety of industrial quartz tubes for surface modification and coloring and can make use of the excellent photocatalytic properties of nano-TiO2 for air purification and sewage sterilization.

The invention discloses a preparation method for a high-efficient photocatalyst-nanometer titanium dioxide water-based colloid. The preparation method comprises the following steps: adopting metal titanium as titanium source; adopting hydrogen peroxide to oxidize nulvalent metal Ti into quadrivalent TiO<2+>; further conducting complexing on the TiO<2+> and the hydrogen peroxide to obtain water-soluble TiO[H2O2]<2+> yellow complex; obtaining yellow complex colloid after evaporating and removing excess hydrogen peroxide and ammonia; conducting hydrothermal reaction by high pressure water of 150-200 DEG C; transporting the TiO[H2O2]<2+> yellow complex into pure white Ti(OH)4 water-based emulsion; adding mineral acid to adjust the pH value of the emulsion to the range of 2-4; conducting temperature control to enable the temperature of water bath to be 60-80 DEG C; continually stirring for 3-6 hours to enable the Ti(OH)4 water-based emulsion to gradually gel into nanometer titanium dioxide water-based colloid. The preparation method uses no organic solvent; no waste water or waste gas generates in the reaction process; particle diameters of colloid granular are less than 10 nanometers; degree of crystallinity is high; high photocatalytic activity is provided; coating property and film forming property on porous base material are extremely good.