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524results about How to "Impenetrable" patented technology

Unsaturated fatty acid microcapsule preparing technology and application

The present invention relates to a preparation technique and an application of unsaturated fatty acid microcapsules. The preparation technique of the unsaturated fatty acid microcapsules is characterized in that the present invention includes the following steps: 1) the selection of the raw materials: the inner layer coating materials and the outer layer wall materials are selected for standby according to that the weight ratio of the inner layer coating materials and the outer layer wall materials is 0.7 to 1.5: 3 to 5; the inner layer coating materials are unsaturated fatty acid; the outer layer wall materials are the mixture of any two or more of the natural rubbers, carbohydrates and soluble proteins; 2) the outer layer wall materials are mixed evenly, the weight ratio of the outer layer wall materials and the water is 3 to 4: 6 to 7, the evenly mixed outer layer wall materials are added after the water temperature is increased to 50 DEG C, so as to get the pre-emulsion; 3) the inner layer coating materials are added into the pre-emulsion and is homogenized at the high pressure of 30 to 35MPa, so as to get the emulsion; 4) the emulsion is treated by the spray drying, the materials after the spray drying is cooled by a fluidized bed, the cooling temperature is 30 to 50 DEG C, then the materials pass through a 20 to 60 mesh vibrating screen, so as to get the unsaturated fatty acid microcapsules. The present invention is characterized by water repellency.
Owner:武汉麦可得生物技术有限公司

Extinguish material, preparation method and application thereof

The invention provides a high-efficiency extinguish material for a major fire source, which comprises the following components by weight portion: 1 to 50 portions of component A, 1 to 2 portions of component B, 2 to 1,000 portions of component C, and 0 to 200 portions of component D. The component A is an inorganic silicate material; the component B comprises a foaming agent, a surfactant and a dispersing agent; the component C is water; and the component D comprises a defoamer, a fireproof material, a material generating flame-retardant gas through pyrolysis, a water absorber, a colloidal material and a filling material. The high-efficiency extinguish material overcomes the defects that the prior art has high production and using cost, fast running-off, low service efficiency, severer pollution and high residual quantity, has the advantages of low cost, controllable specific gravity, higher viscosity, difficult seepage, loose storage conditions, fast production, convenient use, safe performance and the like, and can achieve large batches of long-distance transportation. The high-efficiency extinguish material is applicable for large-scale fire extinguishing of oil products, flammable chemicals, large buildings, coal mines, forests and the like, other fire source control and the like.
Owner:徐志毅

Die pressing coating capable of being transferred onto composite metal surface and laser film comprising die pressing coating

The invention discloses a die pressing costing capable of being transferred onto a composite metal surface. The die pressing costing comprises 6-10% of cellulose acetate butyrate, 4-8% of acrylic resin, 2-6% of nitrocotton liquid, 25-35% of butanone, 10-20% of propylene glycol monomethyl ether and 28-32% of ethyl acetate, and is 1.3-1.5 micrometers in thickness. The die pressing coating is compact in surface, not easy to erode by solvent utilized in follow-up processing, suitable in strength for die pressing, good in stripping, and particularly suitable for being transferred onto an aluminum foil surface of composite aluminum foil paper to be colored and embossed after the die pressing, so that the composite aluminum foil paper with laser effect can be obtained. The invention further provides a laser film comprising the die pressing coating. The laser film comprises a basic film, and the die pressing coating which is provided with laser patterns after die pressing treatment is coated on the basic film, and a vacuum aluminum coated layer is arranged on the die pressing coating. The composite aluminum foil paper with bright, smooth and massive laser effect can be obtained by compositing the laser film with the composite aluminum foil paper and peeling the same off, and the process is easy to control.
Owner:GUANGDONG XINRUI NEW MATERIAL TECH +1

Method for preparing novel conductive composite anticorrosive coating

The invention relates to a method for preparing a novel conductive polypyrrole/polyaniline composite anticorrosive coating. The method comprises the following steps of: dissolving p-toluenesulfonic acid into water, regulating the pH value of a solution to be an appropriate value, and adding pyrrole and aniline monomers to obtain a mixed solution; performing electrochemical synthesis by using a three-electrode system, wherein copper is taken as a working electrode, a platinum sheet is taken as an auxiliary electrode, and a reference electrode is a saturated calomel electrode; and performing electrochemical polymerization under certain electrical parameters by cyclic voltammetry to obtain a layer of conductive polypyrrole/polyaniline composite anticorrosive coating on the surface of the copper electrode. The conductive polymer coating generated on the surface of the copper has high adhesion and is uniform and compact; medium corrosion ions can be effectively hindered from penetrating the coating and permeating into the surface of a metal matrix for a long time; the composite coating effectively improves the corrosion potential of a copper matrix and reduces corrosion current; and in addition, after the prepared coating is damaged, a layer of passivating film can be quickly generated on the surface of the matrix so as to ensure that metal is free of corrosion.
Owner:常熟市通顺纺织有限责任公司

Fluff anti-seepage type concrete slab for building external wall

The invention discloses a fluff anti-seepage type concrete slab for a building external wall, and belongs to the technical field of buildings. According to the fluff anti-seepage type concrete slab for the building external wall, fluff-like water guide air bag bars similar to fluff can be disposed on the outer surface of a concrete slab, waterproofing is realized for the surface at a normal state,the contact between rainwater and the concrete slab is reduced, and therefore a certain anti-seepage effect is realized, even when a slight water seepage phenomenon occurs, self-releasing water storage balls buried corresponding to the fluff-like water guide air bag bars rapidly absorb water and trigger drainage actions to inject air into the fluff-like water guide air bag bars on the basis of internal extrusion and to make the fluff-like water guide air bag bars get hard and straight, meanwhile the self-releasing water storage balls release the absorbed water, the water is rapidly guided outof the concrete slab with the aid of the fluff-like water guide air bag bars, and the contact area between the water and the outside is increased at the same time, so that water evaporation is accelerated, the rapid drying of the surface of the concrete slab can be promoted, the rainwater can hardly continue to seep into the concrete slab, and the anti-seepage performance of the concrete slab isgreatly improved.
Owner:周力启

Leak-proof and anti-volatile bamboo tube container for bamboo wine and manufacturing method of container

The invention belongs to a wine container and a preparation method thereof, and particularly relates to a leak-proof and anti-volatile bamboo tube container for bamboo wine and a manufacturing method of the container. A bamboo tube is made of natural bamboo, a heated wood oil layer is coated on the outer layer of the cleaned bamboo tube, a bee wax layer is coated on the outer layer of the dried bamboo tube, the bamboo tube is primarily processed, cleaned, grinded and coated with wood oil and bee wax to form the bamboo tube container, and the bamboo tube container can be used for containing the wine and can be sealed. The manufacturing method of the leak-proof and anti-volatile bamboo tube container for the bamboo wine is characterized in that the wood oil is heated to reach a certain temperature and then coated on the surface of the bamboo tube, liquid does not easily permeates after a film is formed, corrosion and leakage can be prevented, the bee wax is heated to reach a certain temperature, then coated on the surface of the bamboo tube and polished, leakage can be stopped, the problems of peeling, separation and leakage of glue coating are solved, the wood oil and the bee wax are quite stable in chemical property, and the bamboo wine is green and environmentally friendly and has original taste and flavor and unique fragrance of the natural bamboo.
Owner:黄华

Electroporation method for transfection of mammal embryo with siRNA (small interfering Ribose Nucleic Acid)

The invention discloses an electroporation method for transfection of mammal embryo with siRNA (small interfering Ribose Nucleic Acid). The electroporation method comprises the following steps: (1) weakening an embryo zona pellucid; (2) preparing electroporation solution containing siRNA; and (3) conveying the embryo into the prepared electroporation solution containing siRNA, standing at the room temperature, and then conveying the embryo and the electroporation solution into an electric turn trough for electroporation. The electroporation method comprises the steps of weakening the embryo zona pellucid and complexing the siRNA, and then placing the embryo under the action of a pulsed electric field to increase the permeability and the membrane conductance of the embryo instantaneously, and thus the siRNA which is difficult to penetrate through a cell membrane under the normal physiological condition enters the cell. Statistic observation and analysis prove that the stable positive transfection efficiency of survival embryos exceeds 95%, and the practical effective utilization rate of the collected total embryo exceeds 70%. The electroporation method is a safe, simple and efficient transfection technology of mammal embryo with siRNA.
Owner:NORTHWEST A & F UNIV +1

Manufacturing method for hard micro-fluid chip

The invention discloses a manufacturing method for a hard micro-fluid chip. The manufacturing method comprises the following steps: preparing an upper chip and chemically bonding and packaging the upper chip under a semi-cured state with a substrate, thereby acquiring the hard micro-fluid chip. The upper chip can be prepared from epoxy resin or amino resin; when the upper chip is prepared, the heating curing temperature is 45-85 DEG C and the time is 15 minutes to 8 hours; a thermal polymerized epoxy resin material is used after the two materials of prepolymer and curing agent are mixed, the viscosity thereof after mixing is low (approximate to mineral oil viscosity), the rolling printing for a tiny structure at micron scale and even nanometer scale is convenient and the rolling precision is high; the mixture can be solidified within 40min under the temperature of 80 DEG C, the preparation time of the micro-fluid chip is shortened, the period is short, the consumption of a reagent is less and the batch production is convenient; the hard micro-fluid chip can be flexibly packaged and combined with various substrates; the packaging is independent of external high temperature and high pressure environments; and the packaging strength is high and the speed is high.
Owner:TSINGHUA UNIV +1

Water treatment method for ultrasonically improving oxidation of pollutant with permanganate

InactiveCN102173524AEnhanced ability to catalyze permanganate oxidationImprove oxidation capacityMultistage water/sewage treatmentTreatment effectDecomposition
The invention relates to a water treatment method, particularly a water treatment method for ultrasonically improving oxidation of pollutants with permanganates, and aims to solve the problems in the prior art the speed of oxidation with permanganates is slow, the treatment effect is not stable, the dispersion of produced manganese dioxide nanoparticles is poor and the catalytic rate is low. The method has three forms. The first form comprises the following steps of: pre-treating water; feeding the effluent into a mixing pond, a flocculation pond and a precipitation pond in sequence; filtering the effluent; feeding to a clear water pond and sterilizing. The second form comprises the following steps of: feeding the water into a mixing pond and then pre-treating the water, feeding the effluent to a flocculation pond and then a precipitation pond, filtering the effluent, feeding to a clear water pond and sterilizing. The third form comprises the following steps of: feeding the water into a mixing pond; adding permanganates, inducers and coagulants under ultrasonic action; feeding the effluent to a flocculation pond and then a precipitation pond; filtering the effluent; feeding to a clear water pond and sterilizing. The method has stable operating effects, is favorable for the dispersion of manganese dioxide nanoparticles which are used as the reduction product of permanganates, improves the catalytic ability of manganese dioxide in oxidation of permanganates, and promotes the decomposition of permanganates to produce highly-active intermediate-state manganese.
Owner:HARBIN INST OF TECH

Device and method for purifying molten steel in tundishes

The invention discloses a device for purifying molten steel in tundishes. The device comprises a base, a cyclone portion and a flow guide portion. The cyclone portion and the flow guide portion are fixed to the upper side of the base; the cyclone portion and the flow guide portion are integrally formed, the cyclone portion is provided with an opening hollow inner cavity which is a cyclone cavity; the cyclone cavity is provided with side walls, two symmetric through flow guide ports are formed in the bottom of the cyclone cavity, two symmetric through tangential nozzles are arranged at the bottom of the cyclone cavity, and a slide jump plate is arranged on the lower portion of the cyclone cavity; the flow guide portion is provided with an opening hollow inner cavity which is a flow guide cavity; the flow guide cavity with a thick upper portion and a narrow lower portion is provided with side walls and tangential side walls and is communicated with the cyclone cavity via the tangential nozzles. The device has the advantages that steel slag which flows into the tundishes can quickly float up under the effect of the device, accordingly, slag entrapment can be prevented, large nonmetallic inclusion can be removed, effects of purifying the molten steel in the tundishes can be improved, and the problem of deficiency of devices for efficiently removing inclusion in molten steel and purifying the molten steel in tundishes at present can be solved.
Owner:ANGANG STEEL CO LTD

Planted roof root-resistance waterproof roll and production process thereof

The invention provides a planted roof root-resistance waterproof roll which is composed of 28-30 parts of asphalt, 2-6 parts of SBS (styrene butadiene styrene), 3-6 parts of SBR (styrene butadiene rubber), 1.6-7 parts of APP (ammonium polyphosphate), 15-23 parts of mixed grease, 3-6 parts of fire retardant, 10-13 parts of anti-migration plasticizer, 23-24 parts of polyvinyl chloride resin, 8-10 parts of portland cement powder, 1.0-1.2 parts of nano-zinc oxide, 1-5 parts of dibasic lead phosphate, 2-8 parts of terpolymer resin, 1-5 parts of ABS (acrylonitrile butadiene styrene) resin, 15-22 parts of 909 anti-freeze binder, 10-12 parts of polypropylene fibers and 0.8-1.2 parts of chemical root retardant. The roll is capable of resisting root puncture without influences on normal growth of plants, is waterproof for long term, is capable of forming a high-intensity waterproof layer with high pressure water resistance capacity, and further is fatigue resistant and is high in tensile strength; besides, due to the SBS modified asphalt coating layer with strong original nature, the roll has the advantages of high adaptability to shrinkage and crack of the base layer, excellent high-temperature and low-temperature resistance capacity, high adaptability to cold and hot regions, and high corrosion, mildew and weather resistance.
Owner:WEIFANG ZHENGTAI WATERPROOF MATERIAL

Acrylic ester pressure sensitive adhesive, pressure sensitive adhesive tape and preparation method of acrylic ester pressure sensitive adhesive

The invention relates to the technical field of a pressure sensitive adhesive, in particular to an acrylic ester pressure sensitive adhesive, a pressure sensitive adhesive tape and a preparation method of the acrylic ester pressure sensitive adhesive. The acrylic ester pressure sensitive adhesive provided by the invention is prepared from the following raw materials in parts by weight: 8 to 12 parts of 2-ethylhexyl acrylate, 7 to 10 parts of butyl acrylate, 3 to 4 parts of acrylic acid, 4 to 6 parts of vinyl acetate, 3 to 4.5 parts of methyl methacrylate, 3 to 4 parts of hydroxyethyl methylacrylate, 2 to 3 parts of trimethylolpropane triacrylate, 4 to 6 parts of isoprene rubber with double bonds, 4 to 6 parts of SBS elastomers with double bonds, 45 to 60 parts of solvents and 0.3 to 0.6 part of initiating agents. The acrylic ester pressure sensitive adhesive provided by the invention uses the isoprene rubber and the SBS elastomers for modifying the acrylic ester pressure sensitive adhesive, so that the acrylic ester pressure sensitive adhesive has the advantages of acrylic ester, and also has the electrolyte-resistant and high-temperature-resistant performance of rubber; the defectof poor electrolyte-resistant and high-temperature-resistant performance of the existing acrylic ester pressure sensitive adhesive can be effectively overcome.
Owner:东莞市骏青电子科技有限公司
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