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128results about How to "Efficient bactericidal effect" patented technology

Nano silver antibacterial latex pillow or mattress and preparation method thereof

InactiveCN102010528AUnique antibacterial propertiesAntimicrobial properties provide unique antimicrobial properties uniquePillowsStuffed mattressesChaetomiumPaecilomyces
The invention discloses a nano silver antibacterial latex pillow or mattress and a preparation method thereof. Tiny air holes are fully distributed on the surface of the nano silver antibacterial latex pillow or mattress, and air is filled into the tiny air holes; and the silver antibacterial latex pillow or mattress has bacterial resistance on aspergillus niger, aspergillus flavus, discolored aspergillus, penicillium citrinum, paecilomyces varioti, herbarium cladosporium, trichoderma viride and chaetomium globasum. The preparation method comprises the following steps of: uniformly mixing nano sliver with natural latex; then respectively adding sulphur, bi(triethoxy propylsilane)tetrasulfide and 2,6-butylethylene-4-methylphenol; uniformly stirring; adding soap and air to generate foams; then adding gelatin; and compressing for moulding. The nano silver antibacterial latex pillow or mattress of the invention combines air permeability, high elasticity and soft touch feeling of the latex with efficient bacterial resistance and broad spectrum sterilizing performance of nano silver and can effectively overcome the defects of easy bacterial generation, difficult air permeation, and the like of a common pillow on the market.
Owner:SOUTH CHINA UNIV OF TECH

Photodynamic sterilization polymer as well as preparation method and application thereof

The invention provides a photodynamic sterilization polymer as well as a preparation method and application thereof. The polymer is composed of a main chain and a side chain; the side chain is composed of a long alkyl chain with a quaternized tail end and can be combined with the surface of bacteria with negative charge to form a tight combined body, so that a bacterial membrane is transparent; the main chain is composed of benzene, fluorene and thiophene and has a relatively strong rigid structure; under a light illumination condition, the main chain is excited by light to sensitize air in the periphery to generate active oxygen, so that an efficient sterilization effect is realized. The polymer can be used as an antibacterial agent and can be used for killing gram positive bacteria and gram negative bacteria; the polymer also can be used for killing fungi and has a broad-spectrum antibacterial function. The polymer is simple to prepare and moderate to react and has relatively high yield. The polymer is used as an efficient photodynamic antibacterial material, concentration needed by sterilization is low and the light dosage is small; common white illumination can reach an efficient sterilization effect. The polymer provided by the invention emits fluorescent light in a long-wave region and also can be used for biological fluorescent imaging.
Owner:SHANXI UNIV

Broad-spectrum touch-out medical bactericide and preparation method thereof

The invention discloses a broad-spectrum touch-out medical bactericide and a preparation method thereof. The broad-spectrum touch-out medical bactericide comprises the following component in weight by percent: 5 to 15 percent of povidone iodine, 3 to 10 percent of medical Vaseline, 1 to 5 percent of nonoxynol nonylphenoxy-polyethoxyethanol and pure water. After the broad-spectrum touch-out medical bactericide is contacted with the surface of wound or the afflicted part, the iodine can be depolymerized and released to play the sterilization effect. The broad-spectrum touch-out medical bactericide has the advantages that: the thrill on the tissue is small, the bactericide is applicable to the skin and the mucous membrane infection, the pain and the damage caused by the thrill are greatly reduced compared with other ordinary medicine bactericide, and the bactericide can be directly used for the disinfection and abrasion. The broad-spectrum touch-out medical bactericide is of a broad-spectrum strong sterilization disinfectant and has strong killing effect on virus, bacteria, fungus and mycoticspore. The broad-spectrum touch-out medical bactericide has small thrill on the skin, low toxicity, duration and safe, simple and convenient application.
Owner:JIANGSU PROVINCE JIANERKANG MEDICAL DRESSING CO LTD

Self-cleaning antibacterial glazed ceramic tile and production technology thereof

The invention discloses a self-cleaning and antibacterial porcelain glazed tile, which comprises a ceramic tile embryo body layer, a makeup soil layer, a pattern decoration layer and a wear-resistant layer coated on the tile embryo body layer from inside to outside in sequence, and the makeup soil layer Nano ZnO antibacterial agent is added respectively in the base material of pattern decoration layer and wear-resistant layer, and three layers of antibacterial layers are formed on the surface of ceramic tile embryo body layer; A kind of manufacturing process of self-cleaning antibacterial porcelain glaze decoration tile comprises the following steps: A. Spray water on the surface of the dry ceramic tile body; B. Ball mill the ceramic cosmetic soil base material and nano-ZnO antibacterial agent to make pulp, and coat it on the surface of the ceramic tile body; C. Ball mill the ceramic decorative glaze base material and nano-ZnO antibacterial agent Slurry and print on the surface of the makeup soil layer; D. Ball mill the wear-resistant glaze base material and nano-ZnO antibacterial agent to make slurry, and coat it on the surface of the pattern decoration layer; E. Send it to a roller kiln for firing. The invention has the advantages of simple process, low cost, strong practicability, wide application range, long-lasting and high-efficiency sterilization effect and wear resistance.
Owner:JIANGXI HEMEI CERAMICS

Integrated sewage purifying treatment equipment with backwashing function

The invention discloses integrated sewage purifying treatment equipment with a backwashing function. The integrated sewage purifying treatment equipment comprises a first purifying device, a second purifying device and a water pump, a water inlet pipe is fixedly arranged at the bottom of the left end of the first purifying device, and a reverse osmosis membrane filter screen and a plastic particle filter screen are installed and distributed in the first purifying device; a suction pump is arranged at the top of the first purifying device, a vertical pipe frame is connected to the bottom of the suction pump, adsorption plates are fixedly distributed at the two ends of the vertical pipe frame, a vibration device is arranged at the right end of the top of the first purifying device, and a water pumping pipe is connected to the upper end of the right side of the first purifying device through a connecting port; and the middle of the water pumping pipe is connected with a filter cylinder, and the bottom of the water pumping pipe is connected with the second purifying device through the water pump. The integrated sewage purifying treatment equipment relates to the technical field of sewage purifying, effectively removes dissolved salts, colloids, microorganisms, organic matters and the like in sewage so as to achieve the purpose of purifying water quality, directly adsorbs metal impurity particles in water, and is suitable for sewage purifying treatment.
Owner:怀化汇巨环保科技有限公司

Antibacterial anticorrosive coating for building exterior wall and preparation method thereof

The invention discloses antibacterial anticorrosive coating for a building external wall. The coating is prepared from the following raw materials in parts by weight: 55-65 parts of silicone acrylic emulsion, 9-12 parts of perfluorosiloxane resin, 3-4 parts of an antibacterial agent, 2-3 parts of hydroxyethyl cellulose, 0.5-0.7 part of chlorinated paraffin, 0.3-0.4 part of ammonium trimolybdate and 0.8-1 part of an auxiliary agent. The invention also discloses a preparation method of the antibacterial anticorrosive coating. According to the invention, the silicone acrylic emulsion and the perfluorosiloxane resin are used as film-forming substances of the coating, so that the coating has good waterproof performance; the self-made antibacterial agent is added into the coating, has multiple and efficient antibacterial properties, has good compatibility with a coating matrix and can be uniformly dispersed in the coating; nano particles can block pores of a coating to a certain extent, thecompactness and hydrophobicity of the coating layer are improved, and the corrosion resistance and antibacterial property of the coating are improved. The waterproof coating with antibacterial and anticorrosive properties is prepared and is suitable for coating of building exterior walls.
Owner:马鞍山市金韩防水保温工程股份有限公司

Preparation of polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups

The invention relates to polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing halamine functional groups. The preparation comprises the following steps: taking acrylic acid (AA) and styrene (St) as raw materials, performing polymerization reaction in water to generate acrylic acid and styrene mixed polymer nano-particles, performing inclusion reaction in the water on the magnetic nano-particles to generate an acrylic acid and styrene mixed polymer so as to get acrylic acid and styrene mixed polymer magnetic nano-particles, then reacting with amine to generate the polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing the halamine precursor functional groups and finally performing halogenating reaction to generate the polymer antibacterial nano-particles and magnetic antibacterial nano-particles containing the halamine functional groups. The antibacterial nano-particles have the advantages of high speed, high efficiency and broad-spectrum antibacterial effects, the antibacterial halamine functional groups can be regenerated through the simple halogenating reaction after being exhausted, and the antibacterial nano-particles can be widely applied to sterilization treatment of various water bodies and air, control of harmful smelly gas, inhibition of tumor cells and the like.
Owner:SHANGHAI NORMAL UNIVERSITY

Povidone iodine five-compound disinfectant

The invention relates to a povidone iodine five-compound disinfectant which comprises the following components in percentage by weight: 5-20 percent of povidone lodine, 0.1-10 percent of medical glycerin, 0.1-2 percent of citric acid, 0.1-1 percent of nonoxynol-10, 0.01-0.1 percent of sodium hydroxide and the balance of water for injection. The povidone iodine five-compound disinfectant can be used for producing povidone iodine compound wipes with different specifications, povidone iodine compound cotton swabs, povidone iodine compound spongy cushions, povidone iodine compound hand-washing brushes and the like; and after the products are specially treated or sterilized, the sterility and the safety of the products are fully ensured, and after being unpacked, the products can be directly used, so that the cross contamination and the infection in an intermediate link are avoided. The povidone iodine five-compound disinfectant has the advantages of small skin irritation, low toxicity, lasting action, and safety and convenience in use; the povidone lodine five-compound disinfectant basically has no irritation to tissues and is used for skin and mucosa disinfection, such as cleaning before operation, operative site and wound disinfection, and skin cleaning and disinfection before and after arterial blood drawing.
Owner:江苏健裕健康医疗器械有限公司

Preparation method of nano-divalent silver-supported silica gel antiseptic dressing

The invention discloses a preparation method of a nano-divalent silver-supported silica gel antiseptic dressing. The preparation method comprises the following steps: (1) weighing 85-96 parts of deionized water, adding 1-5 parts of a hydrogen peroxide solution with the concentration of 30%, adding 0.01-0.05 part of nano-divalent silver, and conducting marking as a C solution; (2) regulating the C solution with a nitric acid water solution until the hydrogen ion exponent pH value of the C solution is 2-5, and conducting marking as a D solution; (3) adding 3-5 parts of organic silicon to the D solution, conducting hydrolysis for 2 hours, and conducting marking as an E solution; and (4) regulating the E solution with sodium hydroxide until the pH value is 6-7, then adding 1-2 parts of glycerol, and finally conducting standing and aging for 48 hours for gel formation. Through the above mode, the preparation method of the nano-divalent silver-supported silica gel antiseptic dressing integrates the excellent stability of silica gel and the high-efficiency sterilizing effect of nano-divalent silver, is high in the amount of supported silver and very stable, has long-term sterilization and antibacterial effects, can be mass produced and is nontoxic and harmless.
Owner:苏州聚容纳米科技有限公司

High-valent silver oxide-loaded cyclodextrin polymeric microspheres and preparation method thereof

The invention discloses high-valent silver-oxide-loaded cyclodextrin polymeric microspheres and a preparation method thereof. Cyclodextrin microspheres are used as base spheres and are filled with high-valent silver oxide composite nanoparticles; under the alkaline condition, an inorganic soluble silver salt serves as a silver source, cyclodextrin and polyvinyl alcohol serve as dispersing agents,and silver ions react for synthesizing high-valent silver oxide nano-particles through a strong oxidizing agent; then epoxy chloropropane is taken as a cross-linking agent and beta-cyclodextrin is taken as a monomer, the high-valent silver oxide nanoparticles are doped, and cyclodextrin polymeric microspheres coated with high-valent silver oxide are synthesized by taking kerosene as an oil phase.The cyclodextrin polymeric microspheres disclosed by the invention are large in specific surface area and good in adsorption effect. Meanwhile, the high-valent silver oxide nanoparticles are protectedby the cyclodextrin polymeric microspheres, so that an excellent slow release property is achieved, and the long-acting property is well reflected while the efficient sterilization effect is achieved. The preparation method of the high-valent silver-oxide-loaded cyclodextrin polymeric microspheres provided by the invention only needs two synchronous processes, the process is simple and is easy torepeat, and the method is suitable for mass production.
Owner:苏州火睿新材料科技有限公司
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