58results about How to "Efficient bactericidal" patented technology

The invention provides air filter paper which is effective in anti-bacterial performance and has a simple structure and a preparation method thereof. The anti-bacterial air filter paper comprises a filter paper substrate and an antibacterial agent covered on the surface of the filter paper substrate, and the mass of the antibacterial agent is 0.05 to 1 percent against that of the filter paper substrate. The filter paper substrate is preferably glass microfiber air filter paper, in particular air filter paper produced by glass microfibers, non-alkali continuous glass fiber chopped strands and organic fibers or plant fibers. The antibacterial agent is preferably a nano-silver ion antibacterial agent. As the improvement of the invention, adhesive can be used for the adhesion of the antibacterial agent and the filter paper substrate. The preparation method for the air filter paper has the following steps that: the surface of the filter paper substrate is sprayed with a diluent of the antibacterial agent and then is dried. The adhesive can also be sprayed after the diluent of the antibacterial agent is sprayed. The air filter paper has a simple structure, simple and convenient process, low cost, and high-efficiency sterilization and bacteria-inhibiting performances due to the fact that the antibacterial agent covers the surface of the air filter paper and partially permeates the air filter paper.

The invention relates to a CM-sephadex-C25 grafted long chain alkyl quaternary ammonium salt macromolecule antibacterial agent and a relative preparation method, which comprises dispersing CM-sephadex-C25 in organic solvents as isopropanol, methyl ethyl ketone, N-methyl-2-pyrrolidone and pyrrolidone to graft self-manufactured long chain quaternary ammonium salt on molecular chain in alkali condition, dissolving the product after the reaction via deionized water to be deposited by alcohol, washing and drying to obtain CM-sephadex-C25 modified macromolecule antibacterial agent.

The invention discloses a preparation method of a visible light excitation antibacterial coating layer containing nano cuprous oxide, a p-type semiconductor material-Cu2O with narrower energy gap is used as a basic antibacterial material, and for enhancing the antibacterial property, different contents of Ag or ZnO nanoparticles are doped; the Ag or ZnO nanoparticles are uniformly loaded on the surface of a non-woven fabric or a PET film or a toughened film or other materials by a solution method, a magnetron injection method and the like; under visible light catalysis, the high-efficiency bactericidal property can be realized; the preparation method is different from traditional ultraviolet sterilization, and is more convenient, healthy and environmentally friendly.

The disinfectant is one kind of complex containing quaternary ammonium salt cationic surfactant and iodine. It is produced through mixing the quaternary ammonium salt compound and iodine and reacting for 1-2 hr. It is used mainly for disinfection in animal raising and aquiculture, and has high sterilizing and algae-killing efficiency and high safety.

The invention discloses a Chinese herbal medicine formula for sterilizing an indoor environment of a farm. The Chinese herbal medicine formula comprises the following raw materials in parts by weight: 150-160 parts of Folium Artemisiae Argyi, 15-20 parts of Rhizoma Atractylodis, 2-5 parts of realgar, 3-4 parts of Cortex cinnamomi camphorae, 6-8 parts of Cortex Phellodendri, 4-6 parts of Folium Isatidis, 3-5 parts of Camphora, 1-3 parts of Radix Angelicae Dahuricae, 1-3 parts of Rhizoma Acori Graminei, 2-4 parts of Herba Achilleae, 8-10 parts of Radix Rehmanniae Preparata, 3-4 parts of Fructus Cnidii, 6-8 parts of Herba Lysimachiae foenum-graeci, 2-4 parts of Radix Sophorae Flavescentis, 3-4 parts of Myrrha (processed), 6-8 parts of Cacumen Platycladi, 10-12 parts of Herba Scutellariae Barbatae, 6-8 parts of Ramulus Uncariae Cum Uncis, 2-4 parts of Folium Viticis Negundo, 4-6 parts of peel of Lagerstroemia indica L., 4-5 parts of Rhizoma Polygonati Cirrhifolii, 1-3 parts of Polystichum craspedosorum (Maxim.) Diels., and 3-4 parts of Oreocnide obovata (C.H.Wright) Merr.(Debregeasia obovata C.H.Wright). The Chinese herbal medicine formula is prepared from pure natural Chinese herbal medicines, is aromatic and does not have pungent traditional Chinese medicine odor. The Chinese herbal medicine formula is environmentally friendly, and does not irritate or have toxic action on livestock raising staff and cultivation staff, various medicines are combined scientifically and have efficient bactericidal activity, bacteria and viruses can be killed rapidly, the sterilizing effect on the farm is good, morbidity of the livestock is avoided, and the death rate of the livestock is reduced effectively.

The invention relates to a breathable layered nano-porous copper silver composite material, which is a thin strip, and is prepared from nano-porous copper silver in the middle, and nano-porous copperand nano-porous copper toward two sides sequentially. According to the breathable layered nano-porous copper silver composite material provided by the invention, CuxZryTizAgw is adopted as a precursoralloy, wherein x, y, z and w are atomic percent; x is larger than or equal to 35 and smaller than or equal to 45; y is larger than or equal to 15 and smaller than or equal to 25; z is larger than orequal to 15 and smaller than or equal to 25; w is larger than or equal to 10 and smaller than or equal to 30; and x plus y plus z plus w is equal to 100. Nano-holes in each layer of the material are completely transparent and are adjustable in hole diameters, and the layers communicate through the nano-holes, so that the composite material not only can play a role in multi-layer shielding bacteria, but also is completely breathable. The breathable layered nano-porous copper silver composite material has better filtration and sterilization performances in the field of mask filter slice materials.

The invention discloses a compound visible photocatalyst, and a preparation method and an application thereof, and belongs to the technical fields of material preparation and photocatalysis. The compound visible photocatalyst is a Ag/AgBr/CTF compound, and is prepared through the following steps: preparing CTF through adopting a liquid phase synthesis technology, loading AgBr on the CTF, and reducing parts of AgBr by a photoreduction technology to load elemental Ag on the above obtained AgBr/CTF compound. The compound visible photocatalyst prepared in the invention has the advantages of high active component utilization rate and efficient photocatalysis sterilization effect, and can be used as a photocatalysis bactericide.

The invention provides a multifunctional sulfur elimination agent as well as a preparation method and application thereof, and belongs to the technical field of oil gas field development. The invention provides the multifunctional sulfur elimination agent, which is prepared from the following ingredients in parts by weight: 50 to 60 parts of triazine derivatives, 25 to 35 parts of sterilization corrosion inhibitors and 5 to 15 parts of mutual solvents, wherein the sterilization corrosion inhibitors are one or more of quaternary ammonium salt sterilization corrosion inhibitors, oxazoline sterilization corrosion inhibitors and pyridine sterilization corrosion inhibitors. The triazine derivatives are used as sulfur elimination agents to be matched with the sterilization corrosion inhibitors;under the effects of the mutual solvents, by limiting the dosage of various ingredients, the multifunctional sulfur elimination agent with higher sterilization, corrosion inhibition capability and sulfur elimination capability is obtained through compounding. Through the embodiment, the corrosion inhibition rate of the multifunctional sulfur elimination agent provided by the invention is 86 to 95percent, the sterilization rate is as high as 99 percent, and the sulfur elimination rate can reach 98 percent.

The invention discloses a hand sanitizer containing antibacterial skincare active ingredients of male flowers of eucommia ulmoides, and belongs to the technical field of daily-use chemical industry. The hand sanitizer is prepared from an extract of male flowers of eucommia ulmoides, tween-80, an RH-300 thickener, an RH-960 thickener, dodecyl polyoxyethylene ether sodium sulfate (AES), lauryl sodium sulfate (K12), coconut oil diethanolamide (6501), glycerinum, salt, kathon CG, essence, a natural pigment and deionized water. Extract functional factors of male flowers of eucommia ulmoides are added to the formula, so that the hand sanitizer has the efficacies of resisting bacteria, diminishing inflammation, relieving itching, treating skin eczema sores; the hand sanitizer has relatively efficient antibacterial sterilization effects when decontaminating; and natural antioxidant active components in the extract have the effects of accelerating removal of skin impurities and free radicals, enhancing the tenacity and the expansibility of collagen elastic fibers in cuticle, cleaning hair follicle and deep skin, and shrinking pores, so that the skin becomes relatively fine and smooth, flat and lubricant; and the hand sanitizer plays good roles in improving and protecting the skin.

The invention provides a sterilizing agent for an oilfield water treatment system as well as a preparation method and application thereof. The sterilizing agent is prepared from the following components of 5wt.% to 60wt.% of dodecyl dimethyl benzyl ammonium halide, 0.5wt.% to 5wt.% of D-amino acid, 10wt.% to 30wt.% of surfactant, 3wt.% to 10wt.% of buffer agent and the balance of water. The sterilizing agent has the advantages that the sterilizing efficiency is high, the efficient sterilizing property on SRB (sulfate reducing bacteria) and TGB (total general bacteria) is realized, the durationof effect is long, the production process is simple, and the cost is low.

The invention provides a high-efficiency sterilization sanitary wet tissue containing plant ingredients and a preparation method thereof. The high-efficiency sterilization sanitary wet tissue comprises, by weight, 0.01-0.6% of propylene glycol, 0.01-0.3% of chamomile oil, 0.01-0.3% of a ginger extract, 0.01-0.6% of polyaminopropyl biguanide, 0.05-0.5% of benzalkonium chloride, 0.05-0.5% of a peppermint extract and the balance deionized water. According to the high-efficiency sterilization sanitary wet tissue containing the plant ingredients and the preparation method of the wet tissue, chemical sterilization reagent ingredients are reduced, the usage amount of chemical sterilization reagents is lowered, the plant extracts with the sterilization function are selected to replace partial chemical sterilization reagents, and meanwhile, soft antibacterial agents and the plant extracts are adopted to generate a synergistic effect, and thus the sanitary wet tissue with a high-efficiency sterilization property and being safe and free of irritation is prepared.

The invention belongs to the technical field of high polymer material modification, and provides an antibacterial mildew-proof transparent ABS master batch which comprises the following components in parts by weight: 72-82 parts of transparent ABS resin, 2-8 parts of a first dispersing agent, 15-23 parts of an antibacterial mildew-proof agent, 1.5-3.2 parts of a second dispersing agent, 0.01-1 part of a hindered phenol antioxidant, 0.02-1.3 parts of a phosphite antioxidant and 0-0.1 part of ultramarine pigment powder. According to the invention, through pretreatment of the antibacterial mildew-proof agent, a raw material mixing process and a melt blending process, uniform dispersion of the antibacterial mildew-proof agent in the ABS resin is ensured, so that the antibacterial mildew-proof agent has broad-spectrum and high-efficiency bactericidal performance of an organic antibacterial mildew-proof agent and the characteristics of safety, long-acting effect, temperature resistance and the like of an inorganic antibacterial mildew-proof agent, and simultaneously keeps the transparency of ABS workpieces.

The invention discloses a quaternary phosphonium salt bactericide supported on silica gel. The bactericide comprises repeating units shown in the general formula 1; two repeating units are linked by a silicon-oxygen bond, and a silicon atom of at least one repeating unit is independently linked with an R2 group and groups shown in the general formula II; silica gel and quaternary phosphonium saltare linked by a silane coupling agent and then reacted, then bactericidal active groups are loaded on the silica gel so as to obtain an insoluble silica gel bactericide; and the quaternary phosphonium salt bactericide has the advantages of firm active-group bonding, good product stability, less pollution to environment, and no toxicity. The invention also discloses a method for preparing the bactericide and a method for applying the bactericide. Experimental data shows that the bactericide has an efficient and rapid sterilization property, can be used by cyclic regeneration, and is expected to be applied to industrial and civil water treatment.

The invention discloses a rosin quaternary ammonium salt antibacterial coating compound based on a modified non-woven fabric, and a preparation method and application thereof. The structural formula of the rosin quaternary ammonium salt antibacterial coating compound is as shown in the specification. The rosin quaternary ammonium salt antibacterial coating compound has broad-spectrum and efficientbactericidal performance and is a novel rosin quaternary ammonium salt antibacterial coating compound. According to the preparation method of the rosin quaternary ammonium salt antibacterial coatingcompound, a natural biomass resource, namely rosin is adopted as a raw material and undergoes addition, amidation and the like to synthesize the rosin quaternary ammonium salt antibacterial coating compound; the synthesis process is simple and convenient, the raw material source is green, and a new way is provided for high-valued utilization of rosin resources; and ethanol is used as a solvent, and the compound can be efficiently and chemically grafted to the surface of the non-woven fabric, so the antibacterial property, the mechanical property and the thermal stability of the non-woven fabric are remarkably improved.

The invention discloses a highly-efficient building construction dedusting device. The highly-efficient building construction dedusting device comprises a shell, wherein the bottom part of the shell is provided with bilaterally-symmetrical supporting rods; the right end of the interior of the shell is provided with an air inlet; the interior of the air inlet of the shell is provided with an air suction fan; the central part of the shell is provided with a horizontal sleeve drum; spray holes are uniformly arranged on the outer side wall of the horizontal sleeve drum; flow guide plates are uniformly arranged at the top part of the shell at intervals; each flow guide plate is obliquely arranged to left bottom; ultraviolet sterilizing lamps are fixedly arranged on the top wall of the shell located between the flow guide plates; the left end of the shell is provided with an air outlet; the bottom part of the shell is obliquely arranged to right bottom to form a water collection groove; theleft side of the bottom part of the shell is provided with a water storage chamber; and the interior of the water storage chamber is provided with a water pump which communicates with the left end ofthe horizontal sleeve drum through a water pipe. The mobile building construction dedusting device provided by the invention has ingenious structure and reasonable arrangement, realizes highly-efficiency dedusting and sterilization, saves water and facilitates pollution discharge.

This invention concerns the methods of oil production from vegetable raw material and may be used to producing fat oils from high-oleic wastes of tobacco fields, i.e., tobacco seeds. Achievable result consists in simplified processing method and reduced degree of toxic components extraction from the residue through minimized settling time and losses of desired product. Above-mentioned result in production of medical tobacco oil is achieved through process which includes tobacco seeds cleaning, pressing, and separation into liquid and solid fractions and obtained liquid fraction settling with subsequent oil recovery followed by oil filtration conforming to this invention, where obtained liquid fraction is settled during 12-18 hours; before oil filtration it is pre-cleaned with activated coal additions at ratio of oil : coal = 100 : 2-5; oil is heated up to 50-60 DEG C and exposed to these temperatures for 40-60 minutes; then a single filtration is carried out.

The invention provides a tilapia mossambica fillet preservation method. The tilapia mossambica fillet preservation method comprises the following steps that 1, a hydrochloric acid solution is subjected to electrolysis to prepare electrolysis water; 2, a color fixative prepared from sodium erythorbate and sodium bicarbonate is added into the electrolysis water prepared in the step 1 to obtain a fresh-keeping agent, and then the fresh-keeping agent is made into fresh-keeping ices; 3, tilapia mossambica fillets are covered with the fresh-keeping ices in a foam box and then are sealed and saved, then iced storage is performed, tilapia mossambica fillet preservation can be achieved. By adopting the method, tilapia mossambica fillets can be effectively subjected to bacterium inhabitation and killing, meanwhile oxidization of myohemoglobin of the fillets can also inhibited, the original color and luster of the fillets can be kept, the shelf life of the tilapia mossambica fillets can be prolonged, and the tilapia mossambica fillets can be saved at the temperature for 15-20 days.

The invention discloses a compound quaternary ammonium salt disinfectant and a preparation method and a use method thereof, the compound quaternary ammonium salt disinfectant comprises 16 wt%-20 wt% of a quaternary ammonium salt bactericide, 0.5 wt%-3 wt% of a metal ion chelating agent, 0.5 wt%-10 wt% of a water-soluble ampholytic surfactant and a strong alkali solution for adjusting the pH value of a mixed solution to 8-10, the compound quaternary ammonium salt disinfectant further comprises 0.5 wt%-1.5 wt% of benzotriazole, 1 wt%-5 wt% of polyglycerol ether and the balance of water, and the molar ratio of ethyoxyl to glyceryl in the polyglycerol ether is 26: 1, and the balance is water. The compound quaternary ammonium salt disinfectant provided by the invention is low in ecological toxicity, good in environmental compatibility, good in bactericidal activity at low concentration after being diluted, has a corrosion inhibition effect on metal aluminum, can be used for surface disinfection of aluminum products, is wide in application range, can be used in a low-temperature environment in cooperation with a diluent, and is good in practicability.

The invention discloses a polymerizable rosin quaternary ammonium salt bactericide, a preparation method thereof, and a polymerized rosin quaternary ammonium salt bactericide prepared from the polymerizable rosin quaternary ammonium salt bactericide. The structural formula of the polymerizable rosin quaternary ammonium salt bactericide is shown in the specification. The polymerizable rosin quaternary ammonium salt bactericide has good biocompatibility and efficient bactericidal property, and also has polymerizable active groups; and the preparation method of the polymerizable rosin quaternaryammonium salt bactericide develops the novel efficient bactericide from natural biomass resource rosin, provides a new way for high-valued utilization of the rosin resource, and ha a simple synthesisprocess.

The invention discloses a preparation method for an antibacterial peptide-containing dental implant of a bioactive surface, and particularly relates to a tooth implant with different numbers of coatings. By virtue of electrostatic attraction between cations and anions, molecular coatings which are orderly arranged are formed on the surface of an implant solid, because a chitosan and AMP complex layer is a biological material with good biodegradability and biological compatibility. Due to the existence of a surface chondroitin sulfate layer-antibacterial peptide layer composite layer structure, the prepared antibacterial peptide-containing dental implant has lasting and high-efficient sterilizing and anti-infection capacity, the antibacterial and anti-apoptosis activity can support the adhesion, survival, growth and differentiation of various cells (such as osteoblast and chondrocyte), and the application prospect is wide.

The invention discloses a preparation method of a high-temperature-resistant and high-humidity-resistant polyurethane adhesive, which comprises the following steps: weighing a certain amount of antimicrobial crosslinking agent, assistant antimicrobial polymer and ethanol solution, simultaneously adding the substances into a reaction kettle, stirring to dissolve, heating to react for 2 hours, then,adding triethylamine, and carrying out reacting, cooling, and discharging; removing the solvent, adding the solid substance into ethanol, and stirring to prepare polyurethane adhesive mucilage; one end of the prepared antibacterial cross-linking agent is connected with one side of carbonyl of ester groups in -NH-COO- in the auxiliary antioxidant polymer, and the other end of the antibacterial cross-linking agent is connected with one end of hydroxyl of the ester groups, so that when the adhesive is hydrolyzed in high-temperature water, polymer chains are still connected through the antibacterial cross-linking agent and can still be tightly compounded on the surface of a test piece; and the bonding strength is not reduced due to hydrolysis.

The invention belongs to the technical field of pesticide, particularly relates to a sterilization deinsectization combination containing fluoxastrobin and a suspending agent thereof, wherein the sterilization deinsectization combination containing the fluoxastrobin comprises the fluoxastrobin, a component A and a component B, the quality radio of the fluoxastrobin, the component A and the component B is 1: (0.3-0.8): (0.2-0.6), the component A is prothioconazole or fluopyram, and the component B is azadirachtin or sesamin. The sterilization deinsectization combination containing the fluoxastrobin strong in sterilization and deinsectization effect and strong in wide range. The suspending agent comprises the sterilization deinsectization combination containing the fluoxastrobin, promoters, ethylene glycol, xanthan gum, methylsilicone oil and water, is steady and long in pesticide effect, low in usage, strong in effect and high in sterilization and deinsectization effect.

The embodiment of the invention provides a cleaning device. The device includes a shell body, an air sucking assembly, a dust cup and a heater; the air sucking assembly is installed in the shell body;the dust cup is installed in the shell body, and an accommodating cavity of the dust cup is communicated with the air sucking assembly; the heater is installed in the shell body and used for heatingthe dust cup. According to the cleaning device, an ultraviolet lamp can kill mites and bacteria on a cleaned surface and in the dust cup at the same time, and the irradiation range of the ultravioletlamp is wide; the mite and bacterium killing effect of the cleaning device is more efficient and convenient; the dust cup is constantly heated by the heater, and meanwhile constantly irradiated by anultraviolet lamp tube, the radiation dosage is increased, the heating effect is improved, the efficiency of killing the mites and the bacteria in the dust cup is improved, the mites and the bacteria are completely killed, and secondary pollution caused by the mites and the bacteria can be prevented.