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 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 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 purifying agent for air purifiers and a method for preparing the purifying agent, and relates to the technical field of purifying agents. The purifying agent comprises, by weight, 55-65 parts of modified bamboo pulp fibers, 40-42 parts of nanometer bacterium removing agents, 35-40 parts of sustained-release particles, 30-35 parts of expanded vermiculite, 15-25 parts of modified attapulgite, 10-15 parts of mildew-proof and insect-proof agents and 5-7 parts of stabilizers. The purifying agent and the method have the advantages that raw materials for the purifying agent are safe and environmentally friendly, excellent effects of adsorbing toxic gas such as formaldehyde, toluene and dimethylbenzene in the air can be realized, effects of killing germs can be realized, and accordingly indoor environments can be effectively improved.

The invention discloses a functional PE water supply pipe formula and a preparation method thereof. The PE water supply pipe formula consists of an inner layer and an outer layer; the inner layer is prepared from a composite material with the anti-corrosion and antibacterial functions; the composite material is prepared from the following ingredients in parts by weight: 100 parts of high-density PE resin, 0.2 to 1.5 parts of anti-corrosion antibacterial agents, 0.2 to 0.8 part of antioxidants and 0.5 to 2 parts of lubricating agents, the outer layer is prepared from anti-ultraviolet-aging PE modification materials; the double-layer supply and extrusion process is used for the water supply pipe production. The PE water supply pipe provided by the invention has good anti-aging, anti-corrosion and anti-bacterial performance, so that the problem of color change of the conventional water supply pipe in the sunlight for a long time is solved; the service life is prolonged; the bacterium breeding in the pipe is avoided; the guarantee is provided for the drinking water safety of people.

The application relates to a far-infrared antibacterial polyester fiber. The polyester fiber is prepared with polyester as substrate and composite filler A and composite filler B as additives by meltblending. The composite filler A consists of Al-Mg-CuO composite particles and porous ZnFe<2>O<4> nanospheres; and the composite filler B consists of MgO nanoparticles, Al<2>O<3> nanoparticles, TiO<2>nanoparticles, ZnO nanoparticles and porous ZnFe<2>O<4> nanospheres.

The invention provides high polymer fabric made of a high polymer material. The fabric is prepared through following preparation processes: A, polyester fibers, bamboo fibers and cuprammonium fibers are subjected to melting granulation, then air-jet texturing filaments are spun and woven, and grey fabric is obtained; B, the grey fabric is put in a finishing liquid for dipping, dried and cooled, and finished fabric product is obtained, wherein the finishing liquidis prepared fromcomponents as follows: 12-20 g / L of titanium dioxide, 18-32 g / L of an acrylate binder, 1-3 g / L of glycerin, 3-4 g / L of a flame retardant, 1-2 g / L of alkyl polyoxyethylene ether succinatesulfonate, 1-2.5 g / L of tribenzylpolyoxyethylenephenol ether, 8-15 g / L of cetyl sodium sulfate and 1.5-3 g / L of an antibacterial agent,the natural antibacterial agent is a plant extract prepared from cudweed,floschrysanthemi, folium artemisiaeargyi, fructusforsythiae andherbahouttuyniae in a mass ratio being (1-2):(1-3):(1-3):(1-2):(1-1.5) through mixed extraction, and density of the plant extract is 1-1.5 g / ml. The pure-natural and non-toxic antibacterial extract is utilized to perform antibacterialtreatment on the fabric, so that the antibacterial effect is realized, the ecological problem in the prior art is solved very well, and energy-saving and environment-friendly effects are realized.

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 strile absorbent sutures for gynaecology and obstetrics and a preparation method of the strile absorbent sutures. The strile absorbent sutures for the gynaecology and obstetrics are prepared by taking chitosan silk threads as core threads, taking modified polylactic acid silk threads as shell threads, after stranding braiding, immersing the chitosan silk threads and the modified polylactic acid silk threads into coating liquid containing calcium stearate and polylactic acid and drying the liquid. Through the preparation method, the mechanical properties and hydrophilicproperties of the polylactic acid can be improved, and the prepared sutures have high strength and good biocompatibility; chitosan in the inner part of the sutures degrades slowly, while long-term antibacterial action is achieved, the sutures can further gradually form a hollow structure, thus ingrowth and healing of tissue is promoted, and the effect of accelerating the healing of the tissue is achieved; and the overall preparation process is simple and convenient to control, and needs of practical production and application can be met.

The invention discloses an antibacterial cool fabric which is woven by warp yarns and weft yarns, wherein the warp yarn is obtained by arranging the blended multifilament, flax multifilament and cotton multifilament at a circular proportion of 1:3:3; the blended multifilament is the long stapled cotton and superfine silver fiber blended multifilament; the specification of the multifilament is (200S / 3)-(300S / 3); the weft yarn is polypropylene monofilament with a diameter of 0.2mm; and the warp yarns and the weft yarns are woven into a composite-tissue structure. By interweaving monofilaments and multifilaments, the multifilaments all float on the whole cloth surface to realize good hand feeling; and the antibacterial cool fabric has the characteristics of low monofilament fineness, light specific gravity, high breaking strength, relatively high breaking elongation, good gloss, high humidity absorbability and permeability and the like as well as excellent wearability such as the gentle gloss of silk, the humidity absorbability and permeability of cotton fiber, the coolness of flax and the like. The mixed silver fiber is partially exposed on the fabric surface, can realize an antibacterial effect, and has good wear resistance and washing resistance.

The invention relates to the technical field of herbarium processing, and especially relates to a fresh herbarium and a preparation method thereof. The solid herbarium mainly adopts a colloidal substance to replace resin which is environmentally unfriendly and resistant to light in the prior art to serve as an embedding agent, and the embedding agent is preferably selected from carrageenan, pectin, aloe vera gel and jelly powder; antibacterial agents which are aloe extract and potassium sorbate are also added into the colloid; and the embedding agent is used for embedding the specimen plant, and then performing sealing and ultraviolet sterilization in order to achieve the effective sterilization effect, so a vacuum sterile state is formed in the specimen, specimen plants can be effectivelyprotected, and the light aging resistance effect can be achieved.

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.