1015results about How to "Good antibacterial" patented technology

The present invention discloses II kinds of andrographolide sulfonated derivatives with the actions of resisting bacteria, relieving inflammation and reducing fever and medicine composition containing them. They can be used for preparing freeze-dried powder, injection or oral preparation, and can be used for curing the diseases of pneumonia, bronchitis, tonsillitis and bacillary dysentery, etc.

The powerful adhesive includes neoprene, grafting monomer, thickener, dispersant, adhesion promoter, catalyst, antioxidant, solvent, stuffing, etc. The present invention also discloses the preparation process of the adhesive, and the preparation includes introducing grafting monomer to neoprene molecule chain to raise the adhesion strength, selecting proper adhesion promoting resin to increase the initial adhesion force, and adopting mixed solvent to form high adhering performance. The adhesive has high solid content and excellent environment protecting performance, and has also excellent antiageing performance, high resistance to heat, oil, chemical and corrosion, high weather resistance, good mildew-proof performance, antibiotic performance, etc. and may be used for adhering timber, concrete, rubber, metal, gypsum board, brick and other building material.

The invention discloses a health-care product for recuperating specific intrinsic constitution. The health-care product comprises the following raw materials in parts by weight: 1-8 parts of ginseng, 0.5-8 parts of cordyceps militaris, 1-9 parts of rhizoma polygonati and 1-8 parts of lilies; or 1-4 parts of longan aril, 1-5 parts of lotus seed, 1-2 parts of fingered citron, 1-2 parts of Chinese flowering quince, 1-6 parts of angelica dahurica, 1-6 parts of honeysuckle, 1-5 parts of red jujubes, 1-2 parts of mulberry leaves, 2-4 parts of Chinese yam, 2-6 parts of Chinese wolfberry, 1-4 parts of raspberry, 1-4 parts of euglenophyta, 1-2 parts of walnut kernels, 2-6 parts of horseradish tree leaves, 2-6 parts of snow lotus culture, 1-6 parts of male flowers of eucommia ulmoides, 1-8 parts of Peruvian ginseng powder, 1-4 parts of Acai, 1-4 parts of Noni puree, 1-4 parts of eucommia ulmoides seed oil, 1-2 parts of colla corii asini, 1-2 parts of hyacinth bean and 1-4 parts of Chia seed are added. According to the formation mechanism of the specific intrinsic constitution and the recuperating principle of symptoms, (artificially planted) ginseng capable of reinforcing vital energy and improving immunity, cordyceps militaris capable of complementing essence, qi and spirit of a human body, rhizoma polygonati capable of nourishing qi and yin, and the lilies capable of nourishing yin, clearing heat and promoting salivation are carefully selected from new food raw materials to be used as main raw materials, and the advantages of new resources are fully exerted.

The invention discloses a preparation method and application of a magnetic nanosilver graphene nano composite material, wherein the method comprises the following steps: (1) preparing graphene oxide by virtue of Hummers method; (2) loading ferroferric oxide on the graphene oxide by virtue of a solvothermal method to obtain a magnetic-graphene oxide composite material; and (3) loading nanosilver to the magnetic graphene oxide composite by virtue of an oxidation reduction method to obtain the magnetic-nanosilver-graphene nano composite material. The obtained magnetic-nanosilver-graphene nano composite material is good in bactericidal effect, can be magnetically separated, and is widely used in drinking water treatment and biological medicines.

The invention provides environment-friendly antibacterial and mildew-proof wallpaper. The environment-friendly antibacterial and mildew-proof wallpaper comprises a base layer, wherein the back face of the base layer is provided with a waterproof coating; a coating layer is arranged on the base layer; a bamboo charcoal fiber layer is arranged on the coating layer; an antibacterial layer is arranged on the bamboo charcoal fiber layer; a diatomite adsorption layer is arranged on the antibacterial layer; a printing embossing layer is arranged on the diatomite adsorption layer and is coated with a mildew resisting coating; a polytetrafluoroethylene layer is arranged on the mildew resisting coating and is provided with a film coating layer. The wallpaper is provided with the coating layer, the antibacterial layer and the bamboo charcoal fiber layer, and the triple effect enables the wallpaper to have a good antibacterial property; the coating layer and the mildew resisting coating are arranged so that the wallpaper is good in mildew resistance; furthermore, the diatomite adsorption layer is arranged so as to further enhance the deodorization capability of the wallpaper; finally, the wallpaper provided by the invention has good antibacterial, mildew-proof and deodorization performance.

The invention discloses a green mud crab antibacterial peptide Sphistin and application thereof, relates to the technical field of genetic engineering of crustaceans, and provides the green mud crab antibacterial peptide Sphistin and the application thereof. A molecular formula of the green mud crab antibacterial peptide Sphistin is C170H293N61O46S1 and molecular weight of the green mud crab antibacterial peptide Sphistin is 3,959.61 Dalton. The antibacterial peptide Sphistin consists of 38 amino acids, is derived from a part of sequences at end N of green mud crab histone 2A protein and is apolypeptide with an antibacterial function. By adopting the conventional solid-phase chemical synthesis method, the green mud crab antibacterial peptide Sphistin with purity of over 95 percent can beobtained. The green mud crab antibacterial peptide Sphistin has an obvious antibacterial effect on various gram negative bacteria and gram positive bacteria, has a broad antibacterial spectrum and high sterilization rate, shows extremely high medical value and is excellently applied to preparing antibacterial agents.

The invention discloses a method for preparing functional soluble and edible compound membranes. The method is characterized in that the functional soluble and edible compound membranes are made of polysaccharides, proteins and starch and further comprises membrane-forming agents, reinforcing agents, plasticizers, cross-linking agents, antioxidants and gelatin, and the membrane-forming agents, the reinforcing agents, the plasticizers, the cross-linking agents and the antioxidants are used as auxiliary materials; the method includes steps of mixing aqueous solution, stirring and homogenizing the aqueous solution to obtain aqueous solution A or mixed aqueous solution B and allowing the aqueous solution A or the mixed aqueous solution B to stand still for standby application; carrying out heating treatment to obtain uniform thin membranes by means of flow-casting and cutting and packaging the compound membranes to obtain finished products. The method has the advantages that the functional soluble and edible compound membranes which are of porous network structures can be formed under the mutual effects of different molecules, have certain strength but are soft, can be dissolved in hot water but are moisture-resistant at normal temperature, can be subjected to heat-seal, are edible and are beneficial and harmless to the health, and the method can be widely applied to the field of food packaging.

The invention relates to a nanometer silicon wall paint for an external wall, which is prepared by using the following raw materials by weight part: 20-40 parts of de-ionized water, 0.5-0.8 parts of dispersing agents, 0.1-0.3 parts of wetting agents, 0.1-0.3 parts of bactericides, 1-3 parts of anti-freezing agents, 0.1-0.2 parts of pH regulators, 0.2-0.4 parts of de-foaming agents, 15-25 parts of pigments, 15-25 parts of fillers, 5-8 parts of nanometer calcium carbonate, 0.2-0.4 parts of mildew preventives, 0.3-1.0 parts of thickening agents, 15-35 parts of silicone acrylic emulsions, 3-5 parts of organic silicon modified acrylic ester polymerized emulsions and 0.5-1.0 parts of film-forming auxiliaries. The nanometer silicon wall paint for the external wall has a hydrophobic self-cleaning effect and has super climate resistance.

The invention relates to a water-soluble metal ion loaded hybrid material and a method for preparing the same. The water-soluble metal ion loaded hybrid material comprises carrier molecules A, stabilizer molecules B and metal ions. The method includes steps of stirring and mixing aqueous solution of the carrier molecules A and aqueous solution of the stabilizer molecules B with each other to obtain mixed solution; regulating a pH (potential of hydrogen) value of the mixed solution; adding metal ion salt solution into the mixed solution drop by drop; continuously stirring the mixed solution and the metal ion salt solution; adding precipitants into the mixed solution and the metal ion salt solution; filtering the mixed solution and the metal ion salt solution to obtain precipitates; drying the precipitates by the aid of a vacuum drying oven to obtain the dry-state metal ion loaded hybrid material. The water-soluble metal ion loaded hybrid material and the method have the advantages that the metal ions in the metal ion loaded hybrid material are stably and effectively connected onto molecular chains of the carrier molecules in ionic bond and coordination bond forms, so that the water-soluble metal ion loaded hybrid material is good in water solubility, and the metal ion loading capacity of the water-soluble metal ion loaded hybrid material can be adjusted; the method for preparing the hybrid material is free of pollution and easy to implement, and products rarely contain impurities; the water-soluble metal ion loaded hybrid material prepared by the aid of the method can be widely applied to the aspects such as antibacterial finishing liquid, self-assembly stock solution and intermediates prepared from metal nano-materials.

The invention discloses an antibacterial wash-and-wear fire-retardant finishing liquid which is prepared from the following raw materials in parts by weight: 10-15 parts of glyoxal, 10-15 parts of citric acid, 5-8 parts of cyclic phosphate, 5-8 parts of a licorice extract, 3-5 parts of chitosan, 2-3 parts of magnesium chloride, 2-3 parts of sodium hypophosphite, 1-2 parts of a penetrant, 1-2 parts of a coupling agent, 1-2 parts of a softener, 1-2 parts of ethylene glycol, 1-2 parts of a fiber protecting agent, 1-2 parts of a pH adjusting agent and 1-2 parts of a dispersant. The prepared multifunctional antibacterial finishing liquid is environment-friendly and free of pollution, has good efficacies of being wash-and-wear, shrink-proof, antibacterial and flame-retardant, and can meet the requirements of people on various functional aspects of textiles.

The invention provides a non-woven composite material for a filter respirator.The non-woven composite material comprises a first non-woven fabric layer, a second non-woven fabric layer and a third non-woven fabric layer sequentially from top to bottom, wherein a first antibacterial layer and a polytetrafluoroethylene micro-porous membrane layer are sequentially arranged between the first non-woven fabric layer and the second non-woven fabric layer, a second antibacterial layer and a detachable filter layer are sequentially arranged between the second non-woven fabric layer and the third non-woven fabric layer, the first antibacterial layer is a porous nano titanium dioxide silver-loaded antibacterial agent coating with the particle size of l5nm-50 nm, and the second antibacterial layer is a biological polypeptide antibacterial agent layer.The non-woven composite material for the filter respirator can effectively filter very fine particles and meanwhile has high bacterium and virus resistance performance and good air permeability and adsorbability.

The invention discloses a graphene heat-emitting film assembly with a single-side far infrared radiation function and a bed warmer based on the graphene heat-emitting film assembly. According to the graphene heat-emitting film assembly of the invention, one surface of a graphene heat-emitting film layer, which is far away an electrode layer, is provided with a far infrared reflecting layer. The graphene heat-emitting film assembly disclosed by the invention has an excellent infrared reflection effect and is more energy-saving; the bed warmer based on the graphene heat-emitting film assembly has the advantages of good heat-emitting stability, high temperature rise speed, uniform heat emission and soft material, and can realize the physical therapy functions of promoting blood circulation, repairing cells, preventing diseases and the like..

The invention relates to a method for preparing a bacteriostasis dental repair composite resin. The method comprises the following steps of: (1) stirring and blending an antibacterial agent and a modified inorganic filter in a solvent, oscillating, ultrasonically dispersing, and removing the solvent to obtain a uniformly-dispersed composite functional filler; and (2) premixing the composite functional filler, an organic monomer and an initiator, uniformly mixing to obtain non-cured composite resin paste, and curing with visible light for 40 seconds to obtain the bacteriostasis dental repair composite resin. The method has the advantages of easiness, low cost, low requirement on equipment and suitability for batch production; and the obtained composite resin has the characteristics of highanti-bacterial capability, high mechanical performance, light color and the like, and can be applied in the field of dental repair specifically.

The invention relates to a manufacturing method for a jute natural antibacterial floor towel, blending jute and cotton, adequately utilizing the characteristics of the jute such as excellent moisture absorption and moisture wicking, high strength and tensile stretch and good antibacterial and bacteriostatic capability. Jute fibre is humidified before spinning, and the humidified percentage reaches 12-15 percent; the mixture ratio of jute and cotton is 20-50 percent/50-80 percent during spinning, the relative humidity of spinning environment reaches 83-86 percent, and the relative humidity of textile environment reaches above 85 percent; in order to make up strength and fix short fiber, the sizing ratio is adjusted below 1 percent, and softening treatment and flexible treatment are performed. The manufacturing method for the jute natural antibacterial floor towel changes the jute performance that jute can not be woven, and has the advantages of anti-bacteria, anti-corrosion, anti-wrinkle, moisture absorption, ventilation, flatness and flexibility, good slip resistant and so on.

The invention discloses a multifunctional polyamide 6 fiber, which includes, by weight, 3.0-5.0% of a composite anti-radiation masterbatch, 3.0-5.0% of a colored masterbatch and 90.0-94.0% a polyamide 6 chip. The invention also discloses a making method for the multifunctional polyamide 6 fiber. The method comprises the steps of: a. mixing the dried composite anti-radiation masterbatch, colored masterbatch and polyamide 6 chip evenly, adding the mixture into a screw extruder to undergo melting; b. subjecting the mixed melt to extrusion spinning through a metering pump, and subjecting the tow to side blowing air cooling forming and oiling; and c. subjecting the tow to pre-interlacing and drafting by cold and hot rollers, conducting interlacing, then conducting high-speed winding forming, carrying out physical performance examination and dyeing test, and if qualified, finally performing grading packaging to obtain the multifunctional polyamide 6 fiber finished product. With colored, antibacterial, anti-radiation and other multiple functions, the multifunctional polyamide 6 fiber provided by the invention has lasting and stable washable and anti-radiation effects.

The invention discloses a hydrophilic-lipophilic medical sheath-core type fiber non-woven fabric, and relates to the technical field of non-woven fabrics. The medical sheath-core type fiber is prepared by processing sheath-core type fiber through a spunlace process, the sheath-core type fiber comprises a core layer and a sheath layer, the core layer is modified polyester fiber, and the sheath layer is modified polylactic acid fiber. The prepared non-woven fabric has the excellent hydrophilic and lipophilic properties and good antibacterial and anti-ageing properties and is good in strength andrebound resilience and comfortable in hand feeling; compared with a sheath-core type fiber non-woven fabric which is prepared by directly adopting unmodified polyester and polylactic acid, the tensile strength is increased by 78.2%, the water absorption rate is increased by 47.6%, the oil absorption rate is increased by 64.7%, and then the application direction of the medical non-woven fabric isimproved.

The invention discloses a tatami bed core. The tatami bed core comprises at least one middle layer and a surface layer which is arranged on the upper surface or the lower surface of the middle layer, wherein the surface layer is a non-woven layer which comprises the following components in percentage by weight: 15-40% of low melting point fibers and 60-85% of raw bamboo fibers and/or hemp fibers; and the middle layer comprises the following components in percentage by weight: 5-85% of alpinia fibers, 15-40% of low melting point fibers and the balance of other fibers. The invention further discloses a preparation method of the tatami bed core; and the preparation method comprises the following steps: respectively preparing each layer including an upper surface layer, a lower surface layer and the middle layer; laying the upper surface layer, the lower surface layer and the middle layer in sequence; drying the upper surface layer, the lower surface layer and the middle layer in a drying box; and coldly rolling, cooling, cutting, inspecting and packaging the upper surface layer, the lower surface layer and the middle layer to obtain the tatami bed core. Through adoptions of the tatami bed core and the preparation method thereof disclosed by the invention, technical problems of mildews, insects, easiness for layering and cracking, insufficient elasticity, poor ventilating property and the like in a current bed mattress are solved.

The invention discloses a preparation process of nano-silver antibacterial fiber tableware. The process comprises the following specific steps: I, preparing paper pulp for producing the antibacterial fiber tableware; and II, producing and processing a paper pulp solution prepared in the step I into various antibacterial and environment-friendly tableware products by using paper pulp molding equipment. According to the preparation process, a nano-silver antibacterial agent and conventional paper pulp are extracted in a mixed way through a microwave technology in order that nano-silver antibacterial particles are fully combined into plant fibers. Then, the tableware made of the plant fibers consistently contains nano-silver ions having antibacterial effects, so that the tableware products have anti-bacterial performance; the self-cleaning properties and stain resistance of the tableware products are enhanced; and the antibacterial property and bacteria resistance of the tableware are enhanced. Moreover, the photocatalysis reaction principle of the sterilizing mechanism of the nano-silver antibacterial agent is utilized, so that a very good sterilizing effect can be achieved, and the antibacterial immunity of environment-friendly tableware is enhanced.

The invention relates to a graphene loaded nano ZnO/Ag composite material and a preparation method thereof. A technical scheme is characterized in that the preparation method comprises the steps of mixing Zn powder, an AgNO3 aqueous solution and a graphene oxide solution according to the mass ratio of the solid content being (1.2 to 6) : (0.06 to 3): 1, stirring under room temperature, performing ultrasound, stirring again until the mixed solution is uniformly mixed; putting the obtained mixed solution into a reaction still, performing hydrothermal reaction at 130 to 200 DEG C for 1 to 6h; taking out the mixed solution and cooling, then filtering, centrifuging, and performing solid-liquid separation, performing drying treatment, then a precursor of the graphene loaded nano ZnO/Ag composite material; performing calcining treatment on the obtained precursor, so as to obtain the graphene loaded nano ZnO/Ag composite material. According to the graphene loaded nano ZnO/Ag composite material and the preparation thereof, the operation is simple, the process is easily controlled, the prepared composite material is stable in structure, the particle size is uniform, the antimicrobial activity is good, superior performances on the aspects such as removal of indoor formaldehyde, anti-mildew and degradation of organic pollutant are achieved.

The invention relates to a disposable rain-proof antibacterial shoe cover and a preparation method thereof. The preparation method of the disposable rain-proof antibacterial shoe cover comprises the following steps: preparing impregnation liquid, degassing, soaking with a binder, drying, imprinting anti-skidding bottom lines and demoulding. The disposable rain-proof antibacterial shoe cover uses konjac glucomannan as the carrier, also uses other additives, has good film-forming property, water resistance and antibacterial property and also has high tensile strength and good flexibility; compared with the plastic material, konjac glucomannan used as the main material of the disposable environmentally friendly shoe cover has high tensile strength, good wearing effect and good antibacterial effect, thus the cleanness and hygiene of the shoes can be kept when people walk in rain; the shoe cover can be completely biodegraded, the shoe cover is environmentally friendly and low-carbon; the raw materials are common and low in cost; and the production process is simple and the additional pigment can be kept to some extent.

The invention discloses a preparation method of silk fibroin oligopeptide for skin-care products. The preparation method comprises the following steps: (1) degumming: steeping silkworm cocoons with 0.5-0.8% Na2CO3, rinsing and drying; (2) salt removing: dissolving in boiling water through 50-60% of CaCl2, cooling and then centrifuging, and dialyzing supernatant to obtain a small-molecular silk fibroin solution; (3) double-enzymolysis: performing double-enzymolysis with alkaline protease and actinozyme, centrifuging, and dialyzing supernatant to obtain low-molecular-weight silk fibroin solution; (4) membrane separation: separating with sephadex gel chromatographic column Sephadex G-15, and collecting components to obtain a silk fibroin oligopeptide solution; and (5) drying and storage: performing ultralow-temperature freeze drying on the silk fibroin oligopeptide solution to obtain silk fibroin oligopeptide powder. The preparation method of the silk fibroin oligopeptide is simple and convenient to operate, with extraction rate of more than 93%, and is applicable to addition of raw materials into skin-care products and cosmetics.

The invention relates to organic silicon antifouling coating containing PEG (Polyethylene Glycol)/quaternary ammonium salt and a preparation method of the organic silicon antifouling coating. According to the organic silicon antifouling coating, advantages of a self-assembled PEG monomolecular layer or a cross-linked PEG hydrogel layer and quaternary ammonium salt are combined; the quaternary ammonium salt is introduced into an organic silicon semi-interpenetrating cross-linked network antifouling coating layer containing the PEG to obtain the organic silicon antifouling coating containing thePEG (Polyethylene Glycol)/quaternary ammonium salt. The coating provided by the invention has the advantages of excellent protein resistance, algae resistance, bacterium resistance and the like, andhas a wide application prospect in the field of marine fouling prevention.

The invention discloses tent fabrics and a preparation method of the tent fabrics. The tent fabrics comprise base cloth and waterproof coating. The base cloth comprises, by weight 50-65% of polyester fiber, 15-25% of hemp fiber is, 10-20% of bamboo fiber and 5-10% of wool fiber. The tent fabrics adopt special waterproofing treatment and dyeing processing, not only ensure the waterproof washing color fastness, the color fastness to light and the waterproof effect, but also ensure the wearability to the largest extent through the fiber blending weaving, and enable the blending fibers to have good-strength, anti-bacteria, heat-insulation, uvioresistant and anti-static effects.

The invention discloses a preparation method of a material with nitric oxide (NO) catalytic activity. The preparation method is implemented through the steps that a selenium-containing compound with nitric oxide catalytic activity, a sulfur-containing compound, a soluble copper salt, a compound with an o-phenol structure, a flavonoid compound, and a flavonol compound or a flavanone compound are mixed in a buffer solution and then polymerized. The material with NO catalytic activity not only can be applied to the surface modification of materials which are different in material, geometrical shape and topological structure, and also can be used as a filling material for a controlled release system. Double selenium bonds, double sulfur bonds, copper ions and phenolic hydroxyl groups, which are contained in the prepared material with nitric oxide (NO) catalytic activity, have an excellent free radical removal function; the selenium bonds, the sulfur bonds and the chelate copper ions, which are contained in the material, also have a reduced glutathione (GSH) response function; in addition, the copper ions containing in the material also have an antibacterial function; and the material, besides being used for catalyzing NO release, also can be applied to all related fields of free radical removal and GSH response function.