35results about How to "Strong Antibacterial" patented technology

The invention provides antibacterial hydrocolloid dressing and a preparation method thereof, and belongs to the technical field of medical dressing. The preparation method of the antibacterial hydrocolloid dressing is as follows: firstly, elastomers, tackifying resin, a plasticizer and an antioxidant are added into an internal mixer and mixed to prepare a hot-melt pressure-sensitive adhesive; hydrocolloid particles, polyvinyl alcohol, chitosan derivative and an antibacterial agent are added into the hot-melt pressure-sensitive adhesive and mixed; and the mixture is placed in a press vulcanizer for treatment, a waterproof polyurethane backing is coated with the treated mixture, release paper is covered, and a finished product is prepared after irradiation sterilization. The anti-bacterial hydrocolloid dressing prepared with the method has good antibacterial performance and has no safety risk; and the polyvinyl alcohol ingredient added in the preparation process is crosslinked during irradiation to form physical gel, the integrity of the dressing is effectively maintained, and the corrosion resistance of the dressing is improved.

The invention discloses an environmental-protection oxygen barrier antibacterial polypropylene-random (PP-R) pipe. The environmental-protection oxygen barrier antibacterial PP-R pipe comprises a PP-R outer layer, a PP-R oxygen barrier intermediate layer and a PP-R antibacterial inner layer, wherein a high-performance oxygen barrier agent selected in the PP-R oxygen barrier intermediate layer is polyamide and copolymers thereof or polyving akohol and copolymers thereof. The environmental-protection oxygen barrier antibacterial PP-R pipe has a reasonable production formula and low production cost, keeps inherent physical and mechanical properties by adding the oxygen barrier intermediate layer and performing one-time extrusion molding, has high oxygen barrier performance and can prolong the service life of system equipment. The environmental-protection oxygen barrier antibacterial PP-R pipe has an antibacterial rate up to 90 percent on escherichia coli and staphylococcus aureus and has high physical and mechanical properties.

The invention discloses a preparation method of a PE antibiotic food preservation film. The preparation method comprises the following steps: (1) granulating antibiotic master batch; (2) film blowing. The preparation method has the advantage of simple technology, and the properties of the prepared preservation film such as color ability, antibiotic property, physical and mechanical property, and anti-aging property all meet the corresponding standards.

The invention discloses a method for preparing an antibacterial material by use of nano silver, and relates to a preparation method of the antibacterial material. The preparation method comprises the following steps: (1) adding a prepared 2.5g / L nitrate solution into a formaldehyde solution added with 10% of a reducing agent, adding catalyst organic base triethylamine and protective agent thiosalicylic acid for mixing for reaction; (2) adding excess triethylamine into the reacted solution of the step (1) to make the solution more stable and obtain a nano silver solution with the nano silver average particle size being less than 10nm; (3) preparing a 2-3g / L nano silver mixed solution, using a sprayer to spray onto a medical fabric, and drying; (4) filling the medical fabric sprayed with the nano silver with absorbent cotton to make the bactericidal effect better. The nano silver medical product prepared by the method has strong antibacterial, bactericidal effect and broad spectrum antibacterial activity, and is free of drug resistance and high in safety, and the bactericidal effect is greatly enhanced.

The invention discloses an anti-ultraviolet and antibacterial fiber. The anti-ultraviolet and antibacterial fiber is composed of an ultraviolet screening agent, poly(1,4-Phenylenediacetate diethyl ester), silver antibacterial master batches, polyester fiber resin and a stabilizer, wherein the anti-ultraviolet and antibacterial fiber comprises the following components in parts by weight: 1-7 parts of ultraviolet screening agent, 8-15 parts of polyethylene terephthalate, 10-15 parts of silver antibacterial master batches, 70-80 parts of polyester fiber resin and 5-10 parts of stabilizer. The anti-ultraviolet and antibacterial fiber disclosed by the invention has an efficient antibacterial effect and an obvious anti-ultraviolet effect, the antibacterial effects on staphylococcus aureus, Escherichia coli and Candida albicans respectively reach 98%, 95% and 86%, the UPF (Ultraviolet Protection Factor) average value is 50 and the solar ultraviolet transmittance is 0.462%, so that the anti-ultraviolet and antibacterial fiber completely meets the requirements of national ultraviolet protection standards.

The invention discloses an antibacterial plastic, which is composed of, by weight: 40-60 parts of a plastic body, 10-15 parts of a plasticizer, 10-15 parts of a stabilizer, and 20-40 parts of an antibacterial agent. The antibacterial plastic provided by the invention has potent and lasting antibacterial and bacteriostatic effects, can reach an antibacterial ratio up to 90% on Escherichia coli and Staphylococcus aureus, and the antibacterial time is long. With a low pipe production cost, the antibacterial plastic can be widely used in refrigerators, washing machines, televisions and other household appliance industries.

Improved antibacterial plastic is prepared from, by mass, 40-50 parts of plastic body, 7-12 parts of plasticizer, 6-12 parts of stabilizer, 40-45 parts of antibacterial agent, 2-4 parts of silicon carbide and 1-2 parts of graphite powder. The plasticizer is the mixture of dioctyl phthalate and tributyl citrate, the stabilizer is a composite lead salt stabilizer, and the antibacterial agent is the mixture of zinc oxide, copper oxide and lithium carbonate. By the adoption of the inorganic antibacterial agent, bacterial inhibition and resistance can be achieved effectively, the antibacterial rate can reach 80% for certain bacteria, and the effect is durable. Meanwhile, high-strength silicon carbide is mixed in the plastic, so that high temperature resistance is high. Pipes made of the antibacterial plastic can be directly used in a heat supply system.

The invention discloses improved antibacterial plastic. The improved antibacterial plastic comprises, by mass, 35-50 parts of a plastic main body, 5-12 parts of a plasticizer, 4-12 parts of a stabilizer and 35-45 parts of an antibacterial agent. The plasticizer is a mixture of dioctyl phthalate and tributyl citrate. The stabilizer is a composite lead salt stabilizer. The antimicrobial agent is a mixture of ammonium dihydrogen phosphate and lithium carbonate. The novel antibacterial plastic has the advantages of use of an inorganic antibacterial agent, high antibacterial activity, antibacterial rate of 80%, and lasting effects.

The application relates to a hemostyptic microsphere containing an antibacterial ingredient berberine as well as a preparation method and application of the hemostyptic microsphere, and a hemostatic agent can be used in human bodies and can be quickly degraded and absorbed. According to the invention, a composite antibacterial hemostyptic microsphere material taking sodium alginate, sodium carboxymethylcellulose, gelatin and the berberine as raw materials is adopted, the characteristics of bacteria resistance and adhesion of the berberine are utilized, so that the material is endowed with an antibacterial property, and a hemostyptic effect of the material is further enhanced. Meanwhile, in a simulated body fluid environment after hemostasis, hemostyptic antibacterial effective ingredientsincluding the sodium alginate, the sodium carboxymethylcellulose, the gelatin and the berberine are degraded, so that an effect that the hemostyptic material can be quickly degraded and absorbed in human bodies is achieved.

The invention discloses a spatula having a sterilizing function and applicable to pain-relieving and inflammation-diminishing ointments. The spatula comprises a spatula head, an elastic steel disc and a spatula shank, wherein the spatula head is approximately elliptical; blades at four sides of the spatula head are blunt and have a radian; a lower end of the elastic steel disc is vertically welded on a right side end face of the spatula head, while an upper end of the elastic steel disc is vertically welded on a left side end face of the spatula shank; a round through hole is formed in a right side end of the spatula shank; outside surfaces of the spatula head, the elastic steel disc and the spatula shank are coated with a nano-silver coating of which the thickness is 0.5-5mu m; and the spatula head, the elastic steel disc and the spatula shank are made of stainless steel. The spatula is rigid and can not be broken when used to mix an ointment; in addition, the spatula is elastic and has a radian, and thus is convenient to evenly spread the ointment; and moreover, the spatula has the sterilizing function, and can effectively avoid pollution and even skin infection caused by the adhering ointment residue going bad and moldy.

The invention discloses Chinese herbal medicine toothpaste containing eugenia caryophyllata thunb and alpinia oxyphylla volatile oil and a preparation method of the Chinese herbal medicine toothpaste,and belongs to the field of daily chemical products. The Chinese herbal medicine toothpaste comprises the following components of 1.5-2 parts of an eugenia caryophyllata thunb volatile oil and alpinia oxyphylla volatile oil compound, 30-50 parts of an abrasive, 21-33 parts of a humectant, 4-6 parts of xylitol, 1.5-5.5 parts of a thickener, 1-2 parts of sodium dodecyl sulfate and 16-20 parts of water. Through the powerful antibacterial and bactericidal effects of the eugenia caryophyllata thunb volatile oil and alpinia oxyphylla volatile oil compound, tooth bacteria breeding is inhibited, powerful protection is provided for the teeth, meanwhile, certain analgesia and halitosis removal effects are achieved, tooth health can be effectively protected, and dental caries is prevented.