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143results about How to "Good sterilization function" patented technology

Antibiotic cellulose acetate nanofiltration membrane and its preparation method

The invention discloses an antibacterial cellulose acetate nanofiltration membrane and a preparation method thereof. The casting film liquid, composed of 5-14% by weight of secondary cellulose acetate, 3-9% by weight of cellulose triacetated, 15-24% by weight of acetone, 1-5% by weight of maleic acid, 50-55% by weight of dioxane, 5-12% by weight of porogens that is methanol or ethanol and chemical modified nano-particle, is treated to obtain the antibacterial cellulose acetate natrium filter film after filtrating, debubbling, film flotation on the base cloth, solidifying in the gel baith and post processing. The invention brings the plasm chemical modified antibacterial nano-particle into the cellulose acetate nanofiltration membrane to make the nanofiltration membrane have a strong bacteriostasis and sterilization function, and the surface of the nanofiltration membrane is hard to absorb alga and animalcule to raise the use life and the service efficiency of the nanofiltration membrane remarkably. The antibacterial cellulose acetate nanofiltration membrane prepared based on the invention has the advantage of a steady structural properties, a strong erosion-resisting vharacteristics by animalcule and a high water flux of the film. The invention can be broadly used in the field of treatment of ground drinking water, biological pharmacy and the pretreatment of sea water desalination.
Owner:SHIJIAZHUANG NO 4 PHARMA

Liquid laundry detergent containing tea saponin and method for preparing liquid laundry detergent

The invention relates to a liquid laundry detergent containing tea saponin and a method for preparing the liquid laundry detergent, and particularly relates to an antibacterial liquid laundry detergent containing the natural ingredient tea saponin and capable of functioning in sterilization and decontamination simultaneously and a method for preparing the liquid laundry detergent, belonging to the technical field of detergents for daily use. The liquid laundry detergent is compounded with the tea saponin having the sterilization and decontamination capabilities, an anionic surfactant and a nonionic surfactant so that the sterilization and decontamination functions are integrated; and the liquid laundry detergent is prepared from sodium alkyl benzene sulfonate, soap of fatty acid potassium, alkyl polyglucosides, sodium polyoxyethylene alcohol ether sulfate, fatty alcohol-polyoxyethylene ether, tea saponin, fluorescent whitening agent and other additives as well as deionized water. Compared with the prior art, the liquid laundry detergent containing the tea saponin has the advantages of rational formulation, obvious decontamination effect, excellent sterilization and disinfection functions and the like; and the obtained product is green, environment-friendly, safe and free of pollution.
Owner:广州莉威化妆品有限公司

Preparation method of chitosan composite preservative film

The invention discloses a preparation method of a chitosan composite preservative film. The preparation method comprises the following steps: dissolving chitosan in an acetic acid solution, heating to 50 to 65DEG C, and stirring until the chitosan is completely dissolved, so as to obtain a solution A; dispersing modified nano carbon crystal in the solution A, wherein the adding amount of the modified nano carbon crystal is 1 to 9 percent; then adding a plasticizer which accounts for 0.2 to 1 percent of the volume of the solution A, and carrying out stirring, ultrasonic dispersion, standing and ultrasonic degassing for 10 to 15 minutes to obtain a solution B; casting the solution B to form a film, standing and drying at the drying temperature of 35 to 55DEG C; then putting into 0.01 to 0.02mol/L of NaOH solution, soaking for 0.5 to 1 hour, flushing with distilled water, uncovering the film and drying in the sun to obtain the composite preservative film. The chitosan composite preservative film disclosed by the invention has relatively low water vapor permeability, so that excessive loss of water in fruits and vegetables is avoided; the chitosan composite preservative film has relatively good sterilizing function and strong antibacterial durability, i.e., an obvious sterilizing effect can be realized within one hour, and the antibacterial rates for escherichia coli and staphylococcus aureus after 48 hours still can reach 90 percent or above, so the preservation time of the fruits and the vegetables is prolonged.
Owner:ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT

Indoor water-saving humidifying air purifier

An indoor water-saving humidifying air purifier comprises a main body, wherein the main body is provided with an air inlet and an air outlet, and an induced draft fan, an air inlet cavity, a purification cavity and an air outlet cavity are arranged in the main body. The indoor water-saving humidifying air purifier is characterized in that an ultraviolet tube is arranged in the purification cavity, an ultraviolet lamp is arranged in the ultraviolet tube, a stop block is arranged between the outer wall of the ultraviolet tube and the inner wall of the purification cavity, the upper end of the purification cavity is provided with a water tank, the bottom of the water tank is provided with a plurality of water-seeping fibers in a penetrating mode, the water-seeping fibers extend to penetrate through the whole purification cavity, and a container is arranged at the bottom of the purification cavity. A filter partition plate is arranged in the container to divide the container into an upper chamber and a lower chamber. The wall of the lower chamber is provided with a water outlet. The main body is further provided with a water pump and a water pipe connected with the water pump. The water pipe is communicated with the water outlet and a water inlet on the water tank. The indoor water-saving humidifying air purifier has a good dust removal effect and can remove fine dust by adsorbing the dust through water; besides, the water consumption is small, and waste of water resources is avoided.
Owner:苏州璟丰彩板净化有限公司

Low-odor sterilization reinforced ABS (acrylonitrile butadiene styrene) automobile rearview mirror frame material and method for preparing same

The invention discloses a low-odor sterilization reinforced ABS (acrylonitrile butadiene styrene) automobile rearview mirror frame material and a method for preparing the same. The low-odor sterilization reinforced ABS automobile rearview mirror frame material comprises, by weight, ABS, chopped glass fibers, toughening agents, compatilizers, grafting and coating fillers, heat stabilizers, low-volatility matter adsorbents, coating treatment clastic enzymes, nano-photocatalysts, antioxidants, anti-ultraviolet absorbents, anti-floating cellosolve and lubricants. The low-odor sterilization reinforced ABS automobile rearview mirror frame material and the method have the advantages that the low-volatility matter adsorbents are extremely high in adsorption capacity, and low-volatility harmful gasgenerated by components formed from composite materials can be effectively prevented from being outwardly diffused; generated trace low-volatility harmful gas can be decomposed by the coating treatment clastic enzymes and the nano-photocatalysts to obtain carbon dioxide and water which are harmless, and the low-odor sterilization reinforced ABS automobile rearview mirror frame material is excellent in physical and mechanical property, heat aging resistance and weather resistance and low in odor and TVOC (total volatile organic compound) content, is stress-crack-resistant, corrosion-resistant,shock-resistant and scratch-resistant and can be used for producing automobile rearview mirror frames.
Owner:DONGGUAN JISU PLASTIC TECH

Method for synthesizing blocky magnesium-based nano composite material by self-organized reaction

InactiveCN102199714AEvenly distributedThe interface is clean and firmNanotechnologyNanowireThermal insulation
The invention discloses a method for synthesizing a blocky magnesium-based nano composite material by a self-organized reaction, which comprises the following steps: (1) uniformly mixing Mg metal powder and 20 to 30 mass percent of metal oxide powder, wherein the metal oxide is the oxide of a metal having lower reducibility than magnesium; (2) forming the mixture in a mold by cold pressing, wherein the forming pressure is 400 to 600MPa; (3) sintering, wherein the temperature is constantly kept between 450 to 630 DEG C during sintering, and a flowing inert gas (such as argon and mixed gase of CO2 and SF6) is used for protection in a sintering process to prevent magnesium from being oxidized; and (4) at the end of thermal insulation, subjecting a sample to furnace cooling or quenching to obtain different intermetallic compound nano eutectic structures. In the invention, the process and equipment are simple, energy is saved, the reinforcing phase is uniformly distributed, the bonding with interface of a substrate material is firm, and cleanness and environment friendliness are guaranteed. The final hardness of the material is improved greatly, the magnetic nano particles synthesized in situ have excellent soft magnetic property, and the nano lines or nano particles formed by the reaction have high sterilizing performance.
Owner:HUAZHONG UNIV OF SCI & TECH

Ultra-slippery antibacterial material, preparation method thereof and ultra-slippery antibacterial guide pipe

ActiveCN109517204AGood sterilization and antibacterialImprove securityCoatingsBiomedical engineeringNetwork structure
The invention relates to the field of medical instruments and particularly relates to an ultra-slippery antibacterial material, a preparation method thereof and an ultra-slippery antibacterial guide pipe. A pipe body material of the guide pipe is a self-researched and self-developed ultra-slippery antibacterial material. The ultra-slippery antibacterial material comprises a base material, a cross-linking network-structure antibacterial layer and lubricating oil, wherein the cross-linking network-structure antibacterial layer is cross-linked and grafted to the surface of the base material; thelubricating oil, is fixed on the cross-linking network-structure antibacterial layer; and the cross-linking network-structure antibacterial layer is formed by carrying out ultraviolet radiation on a cross-linkable random copolymer, and the cross-linkable random copolymer has a structure represented by a formula (I) (shown in the description). The self-researched and self-developed ultra-slippery antibacterial material is taken as the pipe body material of the guide pipe, so that the guide pipe has good lubricating property and antibacterial property; and the antibacterial components in the guide pipe are in a non-release type, so that the risk caused due to the effusion of the antibacterial components can be avoided, and the safety is relatively high.
Owner:WEIGAO HLDG +2
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