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41results about How to "Play a foaming role" patented technology

Transparent intumescent-type aqueous flame-retardant paint, and preparation method and applications thereof

The invention discloses an environment-protection transparent intumescent-type aqueous flame-retardant paint, and a preparation method and applications thereof, and belongs to the field of paint. Thepreparation method is used for solving problems in the prior art, that in using process of conventional flame retardant paint, halogen containing toxic organic volatile matters are released, flame retardant effect is poor because of the high dehydration catalyst temperature, and nontransparent paint using range is limited. The environment-protection transparent intumescent-type aqueous flame-retardant paint is composed of a component A, a component B, and a paint auxiliary agent. The preparation method comprises following steps: the component A is prepared; the component B is prepared from melamine formaldehyde resin and / or melamine modified urea-formaldehyde resin; the component A and the component B are mixed, the paint auxiliary agent is added, and an obtained mixture is stirred to be uniform so as to obtain the environment-protection transparent intumescent-type aqueous flame-retardant paint. The environment-protection transparent intumescent-type aqueous flame-retardant paint usedfor flame retardant protection of indoor timber structure materials, wood plastic composite materials, steel structure materials, or concrete structures.
Owner:广州诺一新材料有限公司

Preparation method of water-retention dust-falling agent

The invention relates to the technical field of preparation of dust-falling agents and in particular relates to a preparation method of a water-retention dust-falling agent. According to the preparation method, corn starch is subjected to enzymolysis and then is subjected to grafted copolymerization with an acrylic monomer and acrylamide, so that oxidized dextrin has extremely good water absorption and expansion performance; hydrophilic groups including hydroxyl and the like, which are exposed by the corn oxidized dextrin, are good for water retention after water is absorbed, and a condition that excessive water is absorbed and then is leaked is avoided; calcium chloride is doped into the oxidized dextrin so that the water retention amount of the oxidized dextrin can be improved; an endonuclease effect of alpha-amylase is utilized to change the polymerization degree of linear side chains of amylose and amylopectin, so that the viscosity and concentration of the dust-falling agent can be controlled through water dilution; ammonium bicarbonate is added so that a solution surface of the dust-falling agent is foamed; after the surface area of the solution surface is enlarged, the wetting and adsorption performance on dust in the air is improved; meanwhile, protein isolate also has certain oil absorption performance and the absorption rate on oily dust can be improved, so that the dust-falling agent has a wide application prospect.
Owner:FOSHAN LINGXIE ENVIRONMENTAL PROTECTION TECH CO LTD

Preparation method of wet type moisturizing and dust-suppressing agent

InactiveCN108949110AEnhance the ability to absorb dustChange degree of aggregationOther chemical processesDNA EndonucleaseHydroxy compound
The invention discloses a preparation method of a wet type moisturizing and dust-suppressing agent and belongs to the technical field of environmental protection. The preparation method disclosed by the invention has the beneficial effects that due to existence of double electric layers in modified zeolite powder, alpha-1, 4 glucosidic bond is hydrolyzed from the inner parts of starch molecules ina random mode by utilizing endonuclease of alpha-starch amylase, and soybean isolate protein contains more polar groups along the own peptide chain skeleton, so that wetting and absorption for dust in the air are improved; due to addition of ox bile, the wettability of the dust-suppressing agent can be improved, the surface tension of water can be reduced, the water can be prevented from condensing into droplets and the volatilization rate can be reduced; since oxidized dextrin swells after absorbing water, the filling capacity is also increased, and in addition, due to water-absorbing groupssuch as hydroxyl groups and the like exposed in the oxidized dextrin, the action force of the formed hydrogen bonds is stronger; calcium chloride doped in the oxidized dextrin can permeate into a spatial network structure of an oxidized-dextrin grafting product, and after the dust-suppressing agent falls to the ground, the calcium chloride absorbs carbon dioxide to form hard calcium carbonate, sothat diffusion of the dust can be controlled and the application prospect is wide.
Owner:FOSHAN LINGCHAO NEW MATERIAL CO LTD

Medlar floating tablet for treating chronic gastritis and preparation method thereof

The invention relates to a medlar floating tablet for treating chronic gastritis and a preparation method thereof. The medlar floating tablet comprises medlar extractum, cuttlebone, hydroxy propyl methyl cellulose and hydroxyethyl cellulose, is developed according to screening of clinical prescriptions of modern Chinese medicine by combination with modern Chinese medical pharmacology and preparation method thereof; the medicinal values of the medlar and the cuttlebone and the foaming function of the cuttlebone are sufficiently utilized; and the hydroxy propyl methyl cellulose and the hydroxyethyl cellulose serve as hydrophilic gel skeleton materials, so that the medlar floating tablet can expand gradually in gastric juice to wrap carbon dioxide produced after the reaction of a foaming agent and the gastric juice so as to reduce the density of the tablet; and therefore the floating effect of the medlar floating tablet in the stomach is favorably achieved, the action time of the medlar and the cuttlebone in the stomach is prolonged, effective components are easy to absorb, the action is more durable, and the medical effect is more obvious. The medlar floating tablet is particularly suitable for chronic superficial gastritis and chronic atrophic gastritis; any toxic or side effect is not found; and the raw materials are wide in sources and low in cost, and are easy to obtain.
Owner:刘宝虎 +1

Modified diatomite-based multifunctional building board

The invention discloses modified diatomite-based multifunctional building board, and belongs to the technical field of building materials. The modified diatomite-based multifunctional building board is prepared by the following steps: calcining diatomite to obtain primary treated diatomite; mixing the primary treated diatomite with an agar liquid, performing nitrogen charging and thermal insulation reaction, so that secondary treated diatomite is obtained; mixing the secondary treated diatomite with a casein solution to obtain tertiary treated diatomite; mixing the tertiary treated diatomite with a ferric chloride solution, and performing vacuum concentration, so that quaternary treated diatomite is obtained; performing ball milling on the quaternary treated diatomite with paraffin wax, soas to obtain modified diatomite; and mixing the modified diatomite, silane coupling agent, sepiolite, modified carbonized coconut shell fiber, phenolic resin, polyvinyl alcohol solution, curing agentand water to obtain a mixed slurry, and then injecting the mixed slurry into a mold, putting the mold into a hot press, and performing hot press molding, so that the modified diatomite-based multifunctional building board is obtained. The modified diatomite-based multifunctional building board has a good bending strength, and has a certain purifying effect on formaldehyde.
Owner:CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH

Preparation method of fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite prepared via preparation method

The invention discloses a preparation method of fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite prepared via the preparation method. The fiber-reinforced polypropylene composite is prepared by mixing well, at high temperature, a polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, a nucleating agent, an anti-aging agent, an antioxidant and a deodorant, performing melt blending, and granulating by extruding. Strength of the fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite can be enhanced via the carbon fiber and modified polyacrylonitrile fiber; the modified polyacrylonitrile fiber has a foaming function; the carbon fiber of light weight helps implement lightweight production; the polypropylene helps improve toughness of the composite; the anti-aging agent helps significantly improve aging resistance of the composite and extend the service life of the composite; in addition, oxidation resistance of the composite can be improved, the composite can adsorb peculiar odor in air to improve air quality, the preparation method is simple, the costis low, lightweight production of automobiles can be achieved, and the preparation method has a promising application prospect.
Owner:SUZHOU RUNJIA ENGINEER PLASTIC

Disinfection and sterilization device for dental plaque on surface of implant and use method

The invention relates to a disinfection and sterilization device and a use method, in particular to a device for electrochemically removing, disinfecting and sterilizing dental plaque bacterial biofilms on the surface of a dental implant and a use method. The disinfection and sterilization device comprises a syringe, an outlet of the syringe is connected with one end of a catheter, the other end of the catheter is communicated with an inner cavity of a sleeve, one end of a sleeve wire is connected to the sleeve, the other end of the sleeve wire is connected with one end of a direct-current power source, the other end of the direct-current power source is connected with one end of an implant wire, a rubber sleeve is sleeved on the sleeve form the insertion end of the sleeve, and a handle clamping sleeve is sleeved at one end of the opening of the rubber sleeve sleeved on the sleeve. The disinfection and sterilization device and the use method have the advantages that the dental plaque on the surface of the implant is disinfected and sterilized through the electrochemical principle, after the implant is thoroughly cleaned, bones can grow on the surface of the implant again, and new synostosis is formed through growth. Meanwhile, a foaming effect is also achieved, and the implant surface is cleaned thoroughly.
Owner:贺家富

Method for blowing steel ladle top slag modifier by using CO2

The invention discloses a method for blowing a steel ladle top slag modifier by using CO2, which comprises the following steps: respectively crushing and ball-milling limestone fine ore and aluminum ash, mechanically and uniformly mixing the obtained powder according to a certain proportion to prepare the steel ladle top slag modifier, and after tapping of a converter, spraying the prepared steel ladle top slag modifier and modified steel ladle top slag through a blowing device. The blowing device comprises a top-blowing spray gun arranged at the top of the steel ladle, CO2 is introduced into an inner cavity of the top-blowing spray gun to serve as carrier gas and stirring gas, a refractory material layer is arranged at the end, inserted into the steel ladle, of a blowing head of the top-blowing spray gun, the top-blowing spray gun is controlled to ascend and descend through a lifting control system, and the top of the top-blowing spray gun is connected with a discharging valve at the bottom of a powder spraying tank through a discharging pipe. The top of the powder spraying tank is connected with a powder bin through a feeding pipe. The modifier disclosed by the invention is prepared by crushing, ball-milling and mixing industrial waste limestone powder and aluminum ash, the cost is low, and CO2 gas is adopted for injection, so that the problems of molten steel splashing and slag and steel sticking at a steel ladle opening are avoided.
Owner:GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD

Double-handle water faucet having lift-type water drainage function

The invention discloses a double-handle water faucet having a lift-type water drainage function. The double-handle water faucet comprises a bottom plate, a pair of threaded tubes, a pair of plastic tubes, and a communicating tube, wherein the bottom plate is provided with two through holes at intervals; the upper ends of the pair of threaded tubes separately penetrate through the through holes; the lower ends of the pair of plastic tubes are separately and coaxially arranged in the threaded tubes in a sleeving manner; each of the plastic tubes is fixedly connected with the bottom plate; the two ends of the communicating tube separately communicate with the pair of plastic tubes; and the communicating tube is provided with a water outlet tube in a communicating manner. According to the double-handle water faucet disclosed by the invention, the upper ends of the threaded tubes separately penetrate through the through holes formed in the bottom plate, and then the lower ends of the plastic tubes are arranged in the threaded tubes in a sleeving manner, so that the plastic tubes are fixedly connected with the bottom plate, and the strength of the bottom plate is high, and thus, the mounting force of the whole water faucet is improved, connection among various parts is more stable, and the phenomenon that the whole parts are cracked during mounting because of large mounting force when the whole parts are plastic materials is avoided.
Owner:GUANGZHOU SEAGULL KITCHEN & BATH PROD
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