80results about How to "Play an antibacterial effect" patented technology

A coated member comprises a substrate, an antibiotic layer formed on the surface of the substrate, and an anti-fingerprint layer formed on the surface of the antibiotic layer, the antibiotic layer contains silicon oxide having nanometer pores and an antibiotic material loaded on silicon oxide, the antibiotic material contains at least one of nanometer silver ions and nanometer copper ions, and at least one of nanometer titanium dioxide, nanometer zinc oxide and nanometer copper oxide, the anti-fingerprint layer is a perfluoropolyether silane layer, and the thickness of the anti-fingerprint can realize the dissociation of antibiotic material in the antibiotic layer to the surface of the anti-fingerprint layer. The invention also provides a making method of the coated member. The surface of the coated member has good anti-pollution and antibiosis effects.

A microcapsule formaldehyde-removing agent and a preparing method thereof in the field of air purification are disclosed. The removing agent includes a core material and a wall material in a mass ratio of 1:2-6. The core material includes, by weight, 5-10 parts of tea polyphenols, 2-5 parts of aloe extract liquid, 3-5 parts of bracket plant extract liquid, 2-4 parts of Ottelia alismoides extract liquid, 5-10 parts of nanometer carbon black, 2-5 parts of nanometer silver, 2-3 parts of grape seed oil, 1-2 parts of cymbopogon citratus essential oil, 0.5-1 part of lavender essential oil, 0.5-1 part of eucalyptus essential oil, 3-10 parts of an emulsifier, 1.5-3 parts of a co-emulsifier, 1-3 parts of a dispersant and 1 part of a pH stabilizing agent. Uniformly dispersed formaldehyde-removing agent liquid particles are covered with a natural polymer film-forming material to form micro immobilized particles. Plant active components and the nanometer carbon black in the core materials are slowly released by passing through the wall material to remove formaldehyde in air, thus achieving an objective of removing formaldehyde for long term.

The invention discloses mass concrete and preparation and a construction process thereof, and relates to the field of concrete. The invention aims to solve the problem of cracking of concrete by improving a concrete formula and a concrete construction process. The concrete comprises the following components: in parts by weight, 170-180 parts of water, 180-185 parts of cement, 635-730 parts of medium sand, 1000-1100 parts of crushed stone with a particle size of 5-25 mm, 94-100 parts of an external doping material, 160-175 parts of mineral powder and 5.11-5.12 parts of additives, wherein the additives include a water reducing agent and a retarder. Through layered and zoned construction during construction, a plurality of stainless steel punched network pipes are inserted into the concrete after concrete construction of each layer is completed, and all from formulas to construction are improved, wherein effective improvement of the hydration peak period of the concrete and reduction of cracking phenomena after concrete solidification is performed can be achieved through addition of the retarder into the formula of the concrete, and through application of the stainless steel punched network pipes during concrete construction, the working effect of heat dissipation of the concrete can be increased, so that cracks, caused by the heat of hydration, in the concrete are further reduced.

The invention discloses a vegetable oil-containing mild hand sanitizer, and belongs to the technical field of detergents. The vegetable oil-containing mild hand sanitizer is prepared from the following raw materials in parts by weight: 10 to 53 parts of a surfactant, 20 to 45 parts of vegetable oil, 1 to 26 parts of a moisturizer, 2 to 12 parts of an emulsifying agent, 1 to 7 parts of vitamins, 1to 5 parts of essential oil, 1 to 3 parts of citric acid, 1 to 5 parts of menthol, 1 to 5 parts of an aloe extract, 1 to 5 parts of decyl polyglucoside, and 1 to 5 parts of dodecyl dimethyl ammonium oxide. According to the vegetable oil-containing mild hand sanitizer, almond oil in the vegetable oil is mild in oiliness, can be used in a baby skin care product, is rich in trace elements, such as protein, mineral substances and vitamin E, which are required by human bodies, can effectively lighten skin itching and eliminate red and swollen, dryness and inflammation, and in addition, has high oxidation resistance. Most components of the vegetable oil-containing mild hand sanitizer are the vegetable oil and the surfactant which have no irritation to skin and have the effects of sterilizing andmoisturizing, so that the vegetable oil-containing mild hand sanitizer is suitable for most people.

The invention discloses an expanded polytetrafluoroethylene artificial dura mater. The dura mater is prepared by mixing polytetrafluoroethylene and an extrusion aid. The thickness of the dura mater is 0.25-1mm, and the pore size is 0.1-1 mu m. The invention also discloses a preparation technique of the expanded polytetrafluoroethylene artificial dura mater. The preparation technique comprises the following steps: mixing, aging, paste extrusion, calendering, degreasing, longitudinal stretching, lateral stretching and sintering. By adopting the special extrusion technique and special two-way stretching technique, the microscopic sizes of the nodes and fibers are controlled to be less than the diameter or width of bacteria, so that the prepared expanded polytetrafluoroethylene artificial dura mater has the characteristics of favorable antibacterial property and antisticking property. Besides, in order to resist the intracranial pressure, the expanded polytetrafluoroethylene artificial dura mater disclosed by the invention also has the characteristic of super high thickness.

The invention discloses an intelligent breathing fruit and vegetable fresh-keeping film which is prepared from the following raw materials in parts by weight: 90-96.5 parts of a low-density polyethylene resin, 0.5-2 parts of a silicon dioxide opening agent, 1-2 parts of hydrochloric acid, 1-2 parts of titanium dioxide, 0.5-2 parts of N-acetamido-4-vinyl pyridine, and 0.5-2 parts of oleamide. The film belongs to the technical field of fresh-keeping, and is mainly used for packaging fruit and vegetable products; the low-density polyethylene is taken as the basic raw materials, and various conditioning components are added for modification, so that the purpose of prolonging the fresh-keeping time of the fruit and vegetable products is achieved. By adding inorganic chemical components, the air permeability of the film is improved, the breathing action is slowed down, and the fresh-keeping time is prolonged; and the intelligent breathing fruit and vegetable fresh-keeping film has the functions of air permeation balance adjustment, ethylene elimination, frosting prevention and antibiosis.

The invention relates to a sterile super-lubricity antiseep safety catheter structure and belongs to the field of medical equipment. The sterile super-lubricity antiseep safety catheter structure comprises a catheter body, an air bag and an inflating tube, wherein one end of the catheter body forms a catheter guiding head part, the other end of the catheter body forms a catheter connecting sleeve, and an air bag inflating hole is formed in a cavity wall of the catheter body. Two ends of the air bag and an outer wall of the catheter body form an integrated body, and the middle of the air bag and the outer wall of the catheter body form an inflating cavity. The inflating tube is formed on one side of the catheter connecting sleeve. The sterile super-lubricity antiseep safety catheter structure is characterized in that the diameter of a catheter connecting sleeve cavity is gradually expanded in the direction far away from the catheter body, a seal ring is formed on a cavity wall of the catheter connecting sleeve cavity, a guiding head is fixed at the tail end of the catheter guiding head part, an inflation valve matching sleeve is arranged at the tail end of the inflating tube in an expanded mode, and an inflation valve is arranged on the inflation valve matching sleeve in a matched mode and comprises a valve body and a valve. The sterile super-lubricity antiseep safety catheter structure guarantees that the expanded air bag is in good contact with an inner wall of the bladder, pain of patients is reduced, the intubation speed is improved, the sealing effect is good, convenience is provided for X-ray radiography, the antibacterial and smoothness effect is guaranteed, and the sterile super-lubricity antiseep safety catheter structure is hygienic and safe.