44results about How to "Has a surface effect" patented technology

The invention relates to a fiber-reinforced perfluorinated ion exchange membrane containing a non-continuous nano-pore canal and a preparation method thereof. A basic membrane of the membrane comprises a perfluorosulfonic acid ion exchange resin layer and a perfluorocarboxylic acid ion exchange resin layer, reinforcing fiber mesh cloth is arranged in the perfluorosulfonic acid resin layer, and gas release coatings are sprayed on the surfaces on the two outer sides of the basic membrane; and the fiber-reinforced perfluorinated ion exchange membrane is characterized in that the non-continuous nano-pore canal is further contained in the perfluorosulfonic acid resin layer. The membrane is prepared through a melting co-extrusion or multi-layer hot-pressing compounding process. The membrane is used for the ion exchange membrane in the chlor-alkali industry and has better mechanical properties and electrochemical properties.

The invention relates to a hole-containing fiber reinforced ion exchange membrane for the chlor-alkali industry and a preparation method thereof. The membrane is a multi-layer composite membrane composed of a perfluorinated sulfonic acid ion exchange resin layer, a perfluorinated carboxylic acid ion exchange resin layer, a reinforced mesh and a gas release coating, wherein the perfluorinated sulfonic acid resin layer contains reinforced fibers and nano holes. The membrane is prepared through a melt coextrusion or multi-layer hot pressing composite process. The membrane can be used as an ion exchange membrane for the chlor-alkali industry, and has good mechanical properties and electrochemical properties.

The material for preparing titanium silicate adsorbent has molar ratio between Si and Ti of 8-20,and the proportion among alkoxide, water and polyethylene glycol of 1 to 5-15 to 0.002-0.005. The preparation includes the steps of sol preparation and titanium silicate preparation. The sol preparation includes partial hydrolysis of ethanol solution of silanolate, adding ethanol solution of titanic alkoxide while heating for complete hydrolysis; and adding polyethylene glycol for condensation to form sol. In the titanium silicate preparation, the sol is prepared into hydrogel through oil-free formation process and the hydrogel is then prepared into nano spherical titanium silicate via washing, drying and sieving. The titanium silicate product has high adsorption performance and is used in producing core of dehumidifying wheel.

The invention supplies ethylene propylene terpolymer superfine fiber which includes fiber with 200nm-5000nm diameter and its non-woven fabrics or film. Its preparation includes the following steps: dissolving the ethylene propylene terpolymer in the solvent and cooling to room temperature; standing for 2-8 hours at room temperature; electrostatic spinning at 20-60 deg.C to make nanometer fiber; vacuum drying for 48h below 60 deg.C. The invention can be used in spinning, highly active medium separating, absorbing material fields etc.

The invention discloses a high-temperature-resistant corrosion-resistant coating for an engineering machinery tail gas pipe. The coating comprises the following components in percentage by weight: 55 to 65 percent of organic silicon epoxy resin polymer, 1 to 2 percent of salt mist resistant aid, 6 to 10 percent of copper ferrochrome black, 2 to 5 percent of nano zinc oxide, 6 to 3 percent of flaky mica powder, 7 to 4 percent of aluminium trippolyhosphate, 0.1 to 0.4 percent of leveling agent, 0.2 to 0.6 percent of defoaming agent, 0.2 to 0.6 percent of dispersing agent, 4 to 6 percent of talcpowder and 18.5 to 3.4 percent of dimethylbenzene. The bond strength of the coating to a substrate is obviously improved; high temperature resistance can reach 500 DEG C; the coating can resist salt mist corrosion for 48 to 72 hours; and the coating is still black and is slightly faded after being roasted at the temperature of 500 DEG C for 100 hours. The coating is convenient to construct and operate, has wide material sources, and can be applied to resisting corrosion on the outer surfaces of various kinds of steel structure high-temperature equipment, engineering machinery tail gas pipes and steel structure high-temperature chimneys.

A method for preparing a CuO nano-film includes steps: dripping NaOH aqueous liquor into Cu(NO3)2 liquor and obtaining blue flocculent precipitates after heating and reaction; placing washed, dried and ground blue powder into a crucible and roasting the crucible in a muffle furnace to obtain black CuO powder; dissolving the CuO powder in solvent and obtaining CuO liquor after centrifugal separation; and spin-coating the CuO liquor on the surface of a substrate by a spin-coating method and obtaining the CuO nano-film after drying and annealing. The method has the advantages that the method for preparing the CuO nano-film is simple in process and low in cost, and is environment-friendly, and the CuO nano-film can be obtained without the aid of special equipment, realizes a surface effect, a quantum size effect, a volume effect and macroscopic quantum tunneling effect, displays excellent physical and chemical properties in terms of magnetism, heat resistance, light absorption, chemical activity, catalyst, melting point and the like as compared with common CuO, and becomes one of organic materials with wide application.

The invention belongs to the field of fine chemical engineering, and particularly relates to a high-valence silver antibacterial agent and a preparation method thereof. The high-valence silver antibacterial agent is a silver-polyhexamethylene biguanidine complex with the electric potential zeta larger than 0. A metal part of the silver-polyhexamethylene biguanidine complex is Ag3+, and the antibacterial property of the complex is 200 times that of Ag+. A biological acceptable part is polyhexamethylene biguanidine (PHMB), compared with other guanidines with small molecular weights, the antibacterial property is good, the advantages are more obvious because of the synergistic antibacterial effect of PHMB and other antibiotics, and toxicity to cells and tissue of human bodies is smaller. The nanoscale or micron-size Ag(III)-PHMB complex high in antibacterial activity is prepared by means of reversed-phase microemulsion or the aqueous solution environment. On one hand, the Ag(III)-PHMB complex can reduce toxicity, and on the other hand, the metal part and the biological acceptable part achieve the synergistic antibacterial effect so that the antibacterial property of the antibacterial agent can be effectively improved. The antibacterial agent has a great significance in treatment of human epidermis infection.

The invention discloses a preparation method and application of water-soluble titanium dioxide nanoparticles. According to the preparation method, beta-cyclodextrin is used as an initial reaction material, a macroinitiator is synthesized by means of modification, a multi-arm star-shaped block copolymer is prepared by using an atom transfer radical polymerization (ATRP) technology and a technologywhich combines ATRP with 'click' chemistry, and the water-soluble titanium dioxide nanoparticles with uniform sizes and good dispersibility are prepared by taking the multi-arm star-shaped block copolymer as a monomolecular micelle template on the basis of a solution phase synthesis method. The titanium dioxide nanoparticles prepared by the preparation method are stable in quality, uniform in particle sizes, and can be stabilized at a nanoscale; the properties of the titanium dioxide nanoparticles can be effectively enabled to be exerted. The surfaces of the titanium dioxide nanoparticles aremodified, so that the titanium dioxide nanoparticles can be enabled to be evenly dispersed in water, and an aggregation effect is further avoided.

The invention relates to a nano material for CA mortar, belonging to the field of manufacturing technology of auxiliary material used for cement asphalt mortar. The nano material comprises the components by weight percent: 30-45% of nano silicon dioxide, 50-65% of nano calcium carbonate and 5-10% of nano zinc oxide, and the sum of the weight percent of the components is 100%. The nano material hasreasonable compound design, can effectively enhance the compression strength of the CA mortar, and improves the technical properties thereof.

The invention discloses a blast furnace bottom joint filler. The joint filler comprises, by weight, 100 parts of dry materials and 10-25 parts of a binder, wherein 100 parts of the dry materials include silicon carbide particles, fine silicon carbide powder, carbon, a metal-nonmetal composite powder, a silicon dioxide micro-powder, a clay micro-powder, an aluminum oxide micro-powder, a dispersantand a curing agent. The invention further discloses a preparation method of the blast furnace bottom joint filler. The blast furnace bottom joint filler has a high heat conductivity coefficient, can effectively transfer heat, has a high strength index and a high density, has no pollution to the environment, is easy to construct, can fully fill joints, can closely combine with a material for filling the area, can be constructed at a high temperature, also can be constructed and solidified at normal temperature, has a small linear change rate and a good thermal shock stability in a use temperature interval, and improves the resource utilization rate by using wastes in other industries.

The invention discloses a feed additive for a ewe. The feed additive comprises the following components by mass percent: 28-32% of hawthorn powder, 28-32% of eucommia bark leaf powder, 18-22% of gynostemma pentaphylla powder, 18-22% of ginkgo leaf powder and nano-zinc oxide accounting for 1-1.5% of the total addition amount of the hawthorn powder, the eucommia bark leaf powder, the gynostemma pentaphylla powder and the ginkgo leaf powder, wherein the hawthorn powder comprises hawthorn pulp powder and hawthorn kernel powder in the mass ratio of 3 to 1. According to the feed additive, the hawthorn powder, the eucommia bark leaf powder, the gynostemma pentaphylla powder and the ginkgo leaf powder are combined with a novel zinc source-the nano-zinc oxide capable of promoting nutrient absorption of the organism, and the mixture ratio is optimized by the functional complementation principle, so that the reproductive performance of the ewe can be improved. The feed additive does not contain antibiotics, is healthy and green, and is simple to prepare, lower in production cost and wider in application prospect.

The invention belongs to the technical field of environment-friendly coatings and relates to an environment-friendly coating for an exterior wall and a preparation method thereof. The environment-friendly coating for the exterior wall comprises the following raw materials in parts by weight: 40 to 50 parts of an acrylic emulsion, 20-30 parts of polyether polyol, 20-30 parts of a filler, 10-20 parts of carboxymethyl betaine, 5-10 parts of isocyanate, 5-10 parts of ceramic fibers, 5-10 parts of nanometer silicon dioxide, 5-8 parts of a surfactant, 3-6 parts of a plasticizer, 1-3 parts of a drying agent, 1-2 parts of an anti-aging agent and 0.5-1 part of an anti-ultraviolet agent, wherein the anti-aging agent is prepared from zirconium oxide, nanometer titanium dioxide and modified graphene according to a mass ratio of (10-5): (4-8): 1. The environment-friendly coating is non-toxic, odorless, green and safe, has good elasticity, flexibility, waterproofness, aging resistance, abrasion resistance and ultraviolet resistance, short curing time, good hardness and long service life, can be directly painted, and is convenient to operate and applicable to exterior walls.

The invention belongs to the technical field of dechlorination and particularly relates to a normal-temperature gas-phase dechlorinating agent, a preparation method therefor and an application of thenormal-temperature gas-phase dechlorinating agent. The dechlorinating agent comprises a support and active ingredients, wherein the active ingredients comprise CaO and CuO, the support comprises bentonite and alkali modified fly ash, and the alkali modified fly ash is alkali solution modified fly ash. The preparation method disclosed by the invention comprises the steps of mixing calcium hydroxide, copper oxide, bentonite and the alkali modified fly ash, adding a binder into the mixture, carrying out strip extruding, carrying out drying, and carrying out roasting, thereby preparing the dechlorinating agent. The dechlorinating agent obtained by using the preparation method can achieve a dechlorination function at normal temperatures and has relatively high dechlorination accuracy and penetrating chlorosity.

The invention discloses mold-releasing oil for a food baking tray and a preparation method of the mold-releasing oil. The mold-releasing oil is prepared from main ingredients including plant oil, carnauba wax, soybean lecithin as well as auxiliary materials including tween 80, span 80 and nanosilicon dioxide. The mold-releasing oil is prepared from the raw materials in parts by mass as follows: 85-95 parts of the plant oil, 1-10 parts of carnauba wax, 1-5 parts of soybean lecithin, 1-2 parts of a tween 80 and span 80 compound emulsifier with the weight ratio of tween 80 to span 80 being (1:3)-(3:1) and 0.4-1 part of nanosilicon dioxide. The method comprises steps as follows: dissolution at high temperature, shock cooling, post ultrasonic treatment and cooking. The prepared mold-releasing oil is uniform, stable and free of layering in the storage process and has good fluidity at low temperature and a good wall clinging property; the preparation method has the characteristics that the preparation process is simple, preparation conditions are easy to control, adopted reagents are safe and non-toxic and the like.

The invention provides a lac wax nano emulsion and a preparation method thereof. The lac wax emulsion comprises lac wax, Tween-80, Span-80, triethanolamine and water. The preparation method comprises the following steps: 1) evenly mixing the Tween-80, Span-80 and triethanolamine to obtain a compound emulsifying agent; 2) adding the compound emulsifying agent to the molten lac wax, and evenly stirring; and 3) adding water, and stirring to obtain the lac wax emulsion. The lac wax emulsion provided by the invention has a small particle diameter, and the dispersibility, storage stability, centrifugal stability and freezing and thawing stability are satisfactory and can meet the Level 1 national standards. The preparation method of the emulsion is simple, and is suitable for large-scale popularization and application.

The invention discloses a feed additive for a lamb. The feed additive comprises the following components by mass percent: 28-32% of hawthorn powder, 28-32% of eucommia bark leaf powder, 18-22% of gynostemma pentaphylla powder, 18-22% of poplar flower and nano-zinc oxide accounting for 1-1.5% of the total addition amount of the hawthorn powder, the eucommia bark leaf powder, the gynostemma pentaphylla powder and the poplar flower, wherein the hawthorn powder comprises hawthorn pulp powder and hawthorn kernel powder in the mass ratio of 3 to 1. According to the feed additive, the hawthorn powder, the eucommia bark leaf powder, the gynostemma pentaphylla powder and the poplar flower are combined with a novel zinc source-the nano-zinc oxide capable of promoting nutrient absorption of the organism, and the mixture ratio is optimized by the functional complementation principle, so that the production performance of the lamb is improved and the quality of lamb meat is also improved. The feed additive does not contain antibiotics, is healthy and green, and is simple to prepare, lower in production cost and wider in application prospect.

The invention discloses a manufacturing method and application of a nano diamond and myohemoglobin modification based electrochemical enzyme sensor. The manufacturing method comprises the following steps: firstly, weighing and adding a proper amount of graphite powder and ion liquid into a mortar, sufficiently grinding to uniformly mix, filling into a glass electrode tube to compact, internally inserting a copper wire as a guide wire, thereby manufacturing a carbon ion liquid electrode (CILE); dispersing nano diamond (ND) into deionized water to prepare dispersion liquid of different concentrations, performing ultrasonic treatment for 2-3 hours to disperse uniformly, taking and dropwise coating a certain volume of nano diamond dispersion liquid to the surface of CILE, and drying in air atthe room temperature to obtain ND/CILE; fixing myohemoglobin (Mb) to the surface of ND/CILE to dry in air at the room temperature to obtain Mb/ND/CILE; and coating a Nafion alcohol solution to the surface of Mb/ND/CILE, and drying in air at the room temperature to obtain the electrochemical enzyme sensor (Nifion/Mb/ND/CILE). Nifion/Mb/ND/CILE is further taken as a working electrode for being applied to electrochemical detection of targets such as trichloroacetic acid, sodium nitrite and hydrogen peroxide, so that the effective and accurate measurement can be realized, detection response time is short, detection limit is low, linear range is wide, and the stability is good.

The making of nanometer biological sensor separating sense and drug fast cancer comprises the electrode surface generating with hydroxyl group, polishing the electrode into mirror plane, cleaning in acetone, water free alcohol and pure water, drying and processing with multi electric potential step phase by putting it into the PBS solution with PH of 5.0, modifying the nanometer grain, mixing the functional metal nanometer grain or polymer fiber in the dimension of 1:1 and PH=7.2, adding 0.5mg carbamate, dipping the pretreated electrode in the modifying solution to get the nanometer sensor after 10 hours. It can be used to test various cancer cell to separate the sensitive and drug fast cancer cell.

The invention discloses an artichoke polyphenol-chitosan nanoparticle starch gelatin composite film and a preparation method and application thereof. Natural edible bio-macromolecular chitosan capableof forming a film and polyphosphates are used for firstly preparing artichoke polyphenol-chitosan-polyphosphate nanoparticles, and then, the nanoparticles are added into starch and gelatin to preparethe artichoke polyphenol-chitosan nanoparticle starch gelatin composite film. The edible film obtained by the invention has good film forming characteristics, has good barrier property and tensile strength, has anti-oxidative and anti-bacterial effects, can be applied to packaging of fruits, vegetables and the like, is an innovative edible film, and belongs to an innovative food packaging technology.

The invention provides lac resin nanoscale hydrosol and a preparation method thereof. The lac resin hydrosol is composed of lac resin and water. The method comprises the following steps: 1), dissolving lac resin in ethanol so as to obtain a lac resin ethanol solution; and 2), dripping the lac resin ethanol solution in deionized water, and distilling to remove ethanol. The lac resin hydrosol prepared by the method is small in particle size, good in dispersivity, storage stability, centrifugal stability and freeze-thaw stability and can reach national first level standard. The method has the advantages of simplicity and suitability for large-scale popularization and application.