38results about How to "Sustained antibacterial effect" patented technology

The invention provides a bacteriostatic deodorant super absorbent resin. An acrylic acid/acrylate mixed solution is prepared by neutralization of a basic compound and an acrylic monomer solution; a primary crosslinking agent and a primary dispersing agent are added into the mixed solution and uniform stirring is performed; an antibacterial agent is added and uniform stirring is continued; a temperature is raised to a range of 35 DEG C-70 DEG C; an initiator is added for polymerization to form colloid super absorbent resin; granulation and drying are performed on the colloid super absorbent resin in order; a composite bacteriostatic crosslinking agent is added at a temperature in a range of 110-180 DEG C for surface treatment to form the core-shell-type super absorbent resin having a three-dimensional crosslinking network structure. The bacteriostatic agent is one or two selected from a group consisting of an amino acid metal salt ion chelate and a chitosan metal salt ion chelate. The super absorbent resin provided by the invention is applied in sanitation hygroscopic products, has notable bacteriostatic and deodorant properties, has easily available raw materials, has low costs and has huge benefits.

The invention provides a bacteriostatic and deodorant SAP (super absorbent polymer). The bacteriostatic and deodorant SAP is prepared through steps as follows: a primary crosslinking agent and a primary dispersing agent are added to an acrylic acid/acrylate mixed solution which is prepared from a basic compound by neutralizing an acrylic monomer solution, the mixed solution is uniformly stirred, an antibacterial agent is added, uniform stirring is continued, the temperature is increased to 35-70 DEG C, an initiating agent is added, polymerization is performed, and a colloidal SAP is obtained;the colloidal SAP is granulated and dried in sequence and is subjected to surface treatment with a composite antibacterial crosslinking agent at the temperature of 110-180 DEG C, and accordingly, theshell-core type SAP with a three-dimensional crosslinked network structure is obtained. The antibacterial agent is one or two of amino acid metal salt ion chelate and chitosan metal salt ion chelate.The bacteriostatic and deodorant SAP is applied to hygroscopic hygienic products, has remarkable bacteriostatic and deodorant properties, is low in cost and has great benefit, and the raw materials are available.

The invention relates to a rice-pattern decorated ceramic glaze with an antimicrobial function and a preparation method of the rice-pattern decorated ceramic glaze, which belong to the technical field of ceramic glazes. The rice-pattern decorated ceramic glaze disclosed by the invention is composed of the following components: montmorillonite, kaolinite, quartz, talcum, potassium feldspar, glaze stone, wollastonite, dolomite, sodium carboxymethyl starch, zinc oxide and barium carbonate. The preparation method comprises the following steps: after the raw materials are prepared, carrying out ball milling and sieving the obtained object, pouring a glaze on a ceramic blank engraved with rice-pattern decorated holes, carrying out unglazed firing on the obtained product, and carrying out high-temperature firing, so that a rice-pattern decorated ceramic glaze with an antimicrobial function is obtained. In the rice-pattern decorated ceramic glaze disclosed by the invention, wollastonite is adopted for replacing traditional glaze ash, so that the prepared rice-pattern decorated ceramic glaze product is full bodied, rich and crystal clear, and has a deeper dark green color and better transparency; by using the strong property of the added montmorillonite component, the rice-pattern decorated ceramic glaze product has a fixation and inhibition effect on viruses and bacteria as well as toxins produced by the viruses and bacteria in the air, and therefore, the rice-pattern decorated ceramic glaze has the function of inhibiting bacterial growth, and can be used as a mildew preventive.

The invention provides an MXenes-AgNPs synergistic antibacterial cotton fabric. Through the synergistic antibacterial effect of MXenes and AgNPs, the cotton fabric has excellent antibacterial activity and lasting antibacterial ability. AgNPs are uniformly loaded on the surface of the MXene two-dimensional nanosheet through covalent interaction, so that the MXenes nanocomposite loaded with AgNPs is formed. The surface of the cotton fabric is uniformly coated with the AgNPs-loaded MXenes nano composite material through covalent interaction. In addition to the antibacterial property, the cotton fabric prepared by the invention further has multiple functions of ultraviolet resistance, electromagnetic radiation resistance, conductivity and the like, the additional value of the cotton fabric is greatly improved, and the application range of the cotton fabric is greatly widened.

The invention discloses an antifouling antibacterial ceramic glaze, which is prepared from, by weight, 50-60 parts of basic glaze slurry, 7-9 parts of calcium oxide, 3-5 parts of calcium carbonate, 4-6 parts of aluminum hydroxide, 4-5 parts of an antibacterial agent, 5-7 parts of nano zinc oxide, 2-3 parts of sodium hexametaphosphate, 8-10 parts of a phosphoric acid aqueous solution and 2-3 partsof an yttrium nitrate aqueous solution. The invention further discloses a preparation method of the antifouling antibacterial ceramic glaze. By the adoption of the antifouling antibacterial ceramic glaze and the preparation method thereof, the antibacterial agent is added into basic glaze, the antibacterial agent can be uniformly distributed in the glaze, and sintered ceramic can continuously andslowly release silver ions in water, so that a continuous antibacterial effect is achieved; the phosphoric acid aqueous solution and the yttrium nitrate aqueous solution are adopted in the glaze, so that the ceramic sintered by the glaze has good hydrophobicity, dirt cannot be firmly attached to the surface of the coating, the dirt can be washed away when water drops flow past a surface layer, andan antifouling effect is achieved; and a preparation process is simple, the conditions are easy to control, and production cost is low.

The invention discloses a self-cleaning antibacterial degradable daily chemical bottle and a preparation method thereof. The daily chemical bottle contains a silver antibacterial agent, the silver antibacterial agent has a film-forming property, and the preparation method of the silver antibacterial agent comprises the following steps: taking 5-10 parts by mass of N-isopropylacrylamide and addinginto 1000 parts by mass of water, dissolving and uniformly mixing, adding 0.01-0.2 part of a cross-linking agent, stirring, adding 0.01-0.05 part of an initiator, 0.1 part of a catalyst, 0.1 part of asilver nitrate solution and 0.01-0.8 part of a reducing agent, and heating to obtain hydrogel containing nano-silver particles, namely the silver-based antibacterial agent. The obtained self-cleaningantibacterial degradable daily chemical bottle has beneficial mechanical properties and heat resistance, and also has long-lasting antibacterial property and self-cleaning property.

The invention discloses an ABS/PET composite antibacterial material and a preparation method thereof. The material comprises following ingredients, by weight: 50 to 75 portions of ABS, 45 to 65 portions of PET, 10 to 16 portions of a solubilizer, 5 to 12 portions of a flexibilizer, 1 to 4 portions of an anti-oxidant, 0.5 to 1.5 portions of an auxiliary anti-oxidant, 0.1 to 0.5 portion of chitin, 0.2 to 0.6 portion of nano-zinc oxide powder, 0.2 to 0.6 portion of nano-silver powder, and 0.3 to 0.5 portion of 4-hydroxy-3-methoxy-benzaldehyde. Results of performance tests show that the composite antibacterial material of the invention has excellent mechanical properties and antibacterial properties.

The invention relates to a preparation method for a polymer separation membrane with high-efficiency persistent antibacterial and anti-pollution effects, and belongs to the scientific and technical fields of water treatment and membrane separation. According to the invention, through an electron transfer activation regeneration catalyst atom transfer free radical polymerization method, a quaternary ammonium salt is grafted at the surface of the polymer separation membrane, so that the anti-pollution performance of the polymer separation membrane can be effectively improved, the polymer separation membrane modified by the method has obvious inhibiting effects on reproduction of bacteria and microorganisms and good antibacterial performance, and the modified membrane has good separation performance and long-term stable antibacterial and anti-pollution effects. The method is simple in process, green and environmentally friendly, and the method can be operated under the lower content of acatalyst; and the polymer separation membrane has stronger operability in practical industrial production and potential and wide application value in the field of water treatment.

The invention relates to the technical field of biology and particularly relates to a chitosan and microwave composite sterilizing method and an application thereof. The method is characterized in that a material is firstly treated with chitosan and then sterilized by microwaves. The method has the advantage that the sterilizing efficiency is remarkably improved under the same microwave power and sterilizing time, is applicable to disinfecting and sterilizing of the medicine and health and food processing and other industries, and is a green and environmentally-friendly sterilizing method. The method applicable to disinfecting and sterilizing of plant-based pillow inner fillers shows the advantages of being high in efficiency and low in energy consumption, and preventing the fillers from generating thermal damage and deterioration, etc.

The invention provides a dressing prepared from nanometer silver and far-infrared ceramic micro-powder and a preparation method thereof. The dressing is prepared from a nanometer silver composite antibacterial layer and a spongy fabric layer. The nanometer silver composite antibacterial layer comprises 90-95wt% of polyethylene glycol 4000 and the balance nanometer silver particles. The nanometer silver particle has the particle size D90 of 15nm. The spongy fabric layer is prepared from far-infrared ceramic powder and a polymer of polyethylene glycol 6000 by mixing. The mixture comprises 70-80wt% of the polyethylene glycol 6000. The dressing has good antibacterial properties and good healing effects and can be prepared simply.

The invention discloses an antibacterial composite fiber and a preparation method thereof, and relates to the technical field of a health care material. The antibacterial composite fiber comprises thefollowing ingredients in parts by weight: 18 to 22 parts of antibacterial spun polyester, 26 to 34 parts of viscose fiber and 45 to 55 parts of cotton, wherein the antibacterial spun polyester is modified spun polyester obtained through pretreatment. A pretreatment method comprises the following steps of Step 1, taking and mixing equal-mass stone needles and zinc oxides to obtain a mixed additive; Step 2, micronizing the mixed additive by a nanometer technology, and grinding the micronized mixed additive into a 400 nm nanoscale powder ultrafine particle mixed material; and Step 3, performingblended spinning on the mixed material obtained in Step 2 and polyester to prepare the modified spun polyester, wherein the mixing proportion of the mixed material is 6 to 14 percent. The antibacterial composite fiber with efficient and durable antibacterium and deodorization effects is prepared; and the antibacterial composite fiber has the characteristic that the continuous antibacterial effectcan be maintained after washing for many times.

The invention relates to the technical field of antibacterial masks, and discloses an antibacterial combined layer which comprises an antibacterial outer layer and an antibacterial inner layer. The antibacterial outer layer is made of a starch-based polylactic acid composite material and is loaded with an inorganic nano antibacterial agent, and lipase is adsorbed on the antibacterial inner layer.The invention further discloses an antibacterial protective mask comprising the antibacterial layer, the antibacterial protective mask comprises a dustproof outer layer, a filter layer, an antibacterial combination layer and a skin-friendly layer which are connected in sequence, the antibacterial outer layer in the antibacterial combination layer is attached to the filter layer, and the antibacterial inner layer in the antibacterial combination layer is attached to the skin-friendly layer. The antibacterial material can be prevented from being polluted by bacterial carcasses or bacterial secretions, the antibacterial effect is continuously achieved, and the antibacterial material is green, degradable and good in antibacterial effect.

Dressing with a nano-silver composite antibacterial layer and far infrared ceramics comprises base cloth, the inner surface of the base cloth is coated with an adhesive layer, the middle of the base cloth is pasted with protection layers, the protection layers are covered with release paper, the outer edge of the release paper is fixed to an exposed portion corresponding to the periphery of the base cloth, and the dressing is characterized in that the three protection layers are arranged, and sequentially comprise a nano-silver composite layer, a spongy fabric layer and a non-woven fabric reinforcing layer according to the distance away from the base cloth layer from near to far, the spongy fabric layer is soaked by the polymer mixtures of far infrared ceramic micro powder and polyethylene glycol 6,000, the weight percentage of the far infrared ceramic micro powder accounting for in the polymer mixtures is 20 percent to 30 percent, and the range of the particle size of the far infrared ceramic micro powder is 15 microns to 30 microns.

The invention discloses an antibacterial protection bag for water purification equipment. The antibacterial protection bag comprises a bag body on which an antibacterial agent is immobilized, wherein the bag body is made from textile fibers of cotton or viscose; the antibacterial agent is metal ions or nanometal particles; metal is silver, copper or zinc. The antibacterial protection bag adopts composite porous fiber materials as base bodies and has excellent characteristics of being good in mechanical property, safe, environment-friendly and the like, and raw materials are easily available; the fiber materials as the base bodies are subjected to silver loading treatment through a unique process, so that the fiber materials have excellent, wide-spectrum and lasting antibacterial effects; the antibacterial fiber materials are made into various forms of sleeve parts which directly sleeve various water purification filter elements; when the sleeve parts are cooperatively used with the water purification filter elements, the antibacterial and bacteriostatic effects can be achieved through contact or slow release of ultralow-concentration metal ions, the growth of microorganisms can be lastingly and effectively inhibited, and the problem of secondary pollution caused by water purification filter element materials can be avoided.

The invention provides a film coating agent for disinfection based on polyhexamethylene guanidine and a preparation method thereof. The formula of the film coating agent for disinfection based on polyhexamethylene guanidine is as follows: 0.25-0.5 of polyhexamethylene guanidine; 0.1-5.0 parts of a traditional Chinese medicinal material extract; 5.0-15.0 parts of a film forming material; 2.0-4.0 parts of a plasticizer; 10-15 parts of a humectant/pore-foaming agent; 20-75 parts of ethanol; and the balance of refined water. The film coating agent for disinfection based on polyhexamethylene guanidine is a compound disinfection film coating agent formed by multiple components, the sterilization and antiviral effects can be expanded, the film forming characteristic of a film forming material is utilized, a layer of water-insoluble protective film can be formed when the film coating agent is coated on an arm, the film coating agent has the effect of an invisible glove, meanwhile, a humectant/pore-foaming agent is added, the physiological function of skin and the normal work of fingers are not influenced, and the film coating agent has the characteristics of quick sterilization and long maintenance time.

The invention discloses an application method of photocatalyst antibacterial glass in a refrigerator. The application method comprises the following steps that (1) the photocatalyst antibacterial glass is arranged, and a supporting plate in the refrigerator is arranged as a photocatalyst antibacterial glass supporting plate; and (2) a lighting system is arranged, specifically, the lighting systemis arranged in the refrigerator and provided with a lighting lamp and a controller for controlling the lighting lamp, and the controller controls the lighting lamp to intermittently work. According tothe application method, the antibacterial glass in the refrigerator can still get enough light energy even though a refrigerator door is not opened for a long time, thus a photocatalyst material on the surface of the glass continues to play a role, and the antibacterial and sterilizing effects of the antibacterial glass in the refrigerator are continuously achieved.

The invention discloses a novel environment-friendly cardboard material and a preparation method thereof. The preparation method comprises the following steps of: cleaning up, drying, smashing and grinding corncobs and bagasse to obtain mixed powder; well mixing regenerated paper pulp and plant fiber paper pulp in a beating machine, then adding the mixed powder, pretreated fly ash, starch modified white mud fibers and a composite antibacterial agent, and stirring and mixing well to obtain a pulp mixture; adding sodium hexametaphosphate and sodium dodecyl benzene sulfonate into the slurry mixture, and stirring and mixing to obtain slurry; and inputting the slurry into a paperboard forming machine for processing, and then drying to obtain the novel environment-friendly cardboard material. The plant fibers and the inorganic fibers in the prepared novel environment-friendly cardboard material are uniformly dispersed and smooth in surface, the binding force of the inorganic filler and the fibers is high, paper is high in strength and not prone to damage, the preparation raw materials are low in price and easy to obtain, economic benefits are high, and the novel environment-friendly cardboard material is suitable for large-scale production.

The invention discloses an efficient heat-resistant and antibacterial gelatin-based TG enzyme meat product adhesive, and belongs to the field of food processing. The high-purity bone gelatin and TG enzyme microcapsules are combined, a dynamic high-pressure microjet technology is assisted, gelatin action points are increased, the bone gelatin and the TG enzyme microcapsules are fully combined, the crosslinking degree is improved, gelatin-based TG enzyme microspheres are prepared, and safe and efficient antibacterial nano-emulsion such as anise essential oil are added to prepare the TG enzyme meat product adhesive based on gelatin microspheres. In addition, an animal aggregate is subjected to ultrasonic-assisted synchronous demineralization and enzymolysis to obtain a primary bone gelatin solution, and a permanent magnetic field is applied to perform magnetic induction and cross-flow micro-membrane filtration purification on the solution to obtain high-purity bone gelatin. The TG enzyme is combined with the gelatin microspheres, so that the heat resistance of the gelatin is improved; in addition, by adding the antibacterial agent, the level of microorganisms in the recombinant meat can be effectively controlled, the antibacterial effect can be continuously achieved in the storage period, the shelf life is prolonged, and the food safety is greatly improved.

The invention discloses a body lotion with skin moisturizing and soothing effects. The body lotion is prepared from the following components in parts by weight: 3-10 parts of polypentaerythritol tetralaurate, 2-5 parts of mineral oil, 3-10 parts of stearic acid ester, 2-5 parts of fatty acid, 1-3 parts of fatty alcohol, 1-3 parts of fructo-oligosaccharide and 1-3 parts of plant squalane. 1-3 parts of aloe gel, 0.2-1 part of a nano-silver antibacterial agent and 0.2-2 parts of a biological surfactant; wherein the fatty acid comprises super-long-chain fatty acid with the carbon chain length of more than 22. The body lotion finally obtained by matching with a corresponding preparation method not only can prevent the skin from generating cracks due to dryness, but also can avoid the problem of generating acnes when the epidermis moisture escape rate is too high, can also achieve the skin bacterium cleaning effect while keeping the epidermis moist, and is matched with the ultra-long chain fatty acid with the elastic chain length exceeding 22, so that the skin moisturizing effect is achieved. The skin surface micro-ecology and lipid composition can be regulated and controlled to improve the sub-health state of the skin.