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155results about How to "Good foam stabilization effect" patented technology

Preparation method for waterborne polyurethane synthetic leather Bass

The invention discloses a preparation method for a waterborne polyurethane synthetic leather Bass. The method comprises the following steps of: adding a dispersing agent, a polypropylene powder and a talcum powder to waterborne polyurethane under a stirring condition; after sufficiently dispersing these materials, adding a thickening agent to these materials to stir the materials, so as to obtain a waterborne polyurethane synthetic leather paste; before coating, adding a foam stabilizer to the waterborne polyurethane synthetic leather paste under a stirring condition; bubbling the paste by using compressed air, wherein the bubbling speed is 0.2-0.8 m3 / h; and stirring and bubbling the paste for 5-10 minutes at a speed of 600-1000 rpm; and then coating a waterborne polyurethane synthetic leather foaming paste to a base fabric, which is treated by a base fabric treating liquid and ironed by an ironing roller, wherein the coating quantity is 300-600 g / m2; and finally, drying the waterborne polyurethane synthetic leather foaming paste, so as to obtain the waterborne polyurethane synthetic leather Bass. According to the invention, a foaming material has the advantages of rapidness in foaming and good foam stabilizing property; and the preparation method disclosed by the invention has the advantages of simplicity, easiness and easiness for continuous production and is very suitable for large-scale industrial production.
Owner:HEFEI KETIAN WATERBORNE TECH CO LTD

High-temperature-resistant and low-tension foam flooding agent and preparation method thereof

The invention relates to a high-temperature-resistant and low-tension foam flooding agent for improving a recovery ratio of crude oil in a reservoir and a preparation method thereof. The high-temperature-resistant and low-tension foam flooding agent is prepared by continuously stirring salts of alkyl phenol polyoxyethylene ether, sodium alkyl sulfonate, sodium chloride and water at 20-60 DEG C until the salts of alkyl phenol polyoxyethylene ether, sodium alkyl sulfonate and sodium chloride are completely dissolved. The high-temperature-resistant and low-tension foam flooding agent disclosed by the invention has the characteristics of ultralow interfacial tension, strong foaming capability, good foam-stabilizing effect and high temperature resistance and good compatibility with formation water and the like and does not be decomposed at high temperatures of 250 DEG C. The ultralow interfacial tension between aqueous solution (of which the salinity is 0-10000mg/L) of the high-temperature-resistant and low-tension foam flooding agent with a concentration of 0.1-0.5wt% and crude oil can be less than 10<-2>mN/m. The high-temperature-resistant and low-tension foam flooding agent, disclosed by the invention, can be used in a high-temperature reservoir to improve the recovery ratio of crude oil.
Owner:GASOLINEEUM EXPLORATION DEELOPMENT INST OF HENAN OILFIELD BRANCH SINOPEC +2

Super-amphiphobic Janus particles suitable for chip carrying agent for oil base drilling fluid and preparation method and application thereof

ActiveCN109370549AImprove purification efficiencyPromote continuous exploration and developmentDrilling compositionJanus particlesSilanes
The invention relates to the field of oil and gas drilling, in particular to super-amphiphobic Janus particles suitable for a chip carrying agent for an oil base drilling fluid and a preparation method and an application thereof. The Janus particles are silicon dioxide nanoparticles with dissymmetric modification on surfaces, wherein the part of surfaces of the Janus particles are modified by a first modifying group provided by silane as shown in a formula (1) and the rest parts of surfaces of the Janus particles are modified by a second modifying group provided by silane as shown in a formula(2). By combining the particularity of Janus particle structure and the performance asymmetricity, the particles play bubbling and stabilizing roles in an emulsified oil base drilling fluid. An efficiently chip carrying oil base drilling fluid system formed by taking the super-amphiphobic Janus particles chip carrying agent as a core treatment agent improves the drilling speed and the well purification efficiency of a complex well, thereby further promoting continuous exploration and development of irregular oil and gas reservoirs. The formulae are as shown in the description.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Fluoride-free environment-friendly efficient aqueous film-forming foam extinguishing agent and preparation method thereof

The invention relates to the technical field of fire extinguishing agents, in particular to a fire extinguishing agent composition, and a preparation method and application thereof. The fire extinguishing agent composition comprises an organic silicon surfactant, a hydrocarbon surfactant, an organic cosolvent, a foam additive and the like. The foam extinguishing agent has main advantages of not containing a fluorocarbon surfactant, and a polyether modified polysiloxane type organic silicon surfactant and/or a polyether trisiloxane organic silicon surfactant are/is used; on the basis of environmental protection, a compound of an anionic hydrocarbon surfactant, a nonionic hydrocarbon surfactant and an amphoteric hydrocarbon surfactant is adopted for compounding, so that better foam performance and fire extinguishing performance can be achieved; through joint adjustment and dosage matching of multiple components, low surface tension, good foaming performance and foam stabilizing performance and efficient fire extinguishing performance are achieved, and the defect that foaming performance and foam stabilizing performance of an organosilicon surfactant is relatively poor is overcome. .The fire extinguishing agent composition can achieve spreading boundary on an oil surface, can be degraded easily, is environmentally friendly, and is often applied to extinguishing oil fire.
Owner:北京南瑞怡和环保科技有限公司

Foaming agent for low temperature-resistant soil pressure balance shield, and preparation method and application of foaming agent

The invention discloses a foaming agent for a low temperature-resistant soil pressure balance shield, and a preparation method and the application of the foaming agent. The foaming agent is prepared from formulation components in percent by weight: 2 to 4 percent of alpha-olefin sulfonate, 4 to 10 percent of fatty alcohol-polyoxyethylene ether alkyl sulfate, 1 to 2 percent of coco fatty acid diethanol amide, 0.5 to 1 percent of cocamidopropyl betaine, 0.5 to 2 percent of polyethylene glycol, 0.1 to 0.5 percent of glycerol, 0.05 to 0.3 percent of lauryl alcohol, 0.1 to 0.5 percent of sodium chloride, 0.05 to 0.15 percent of 5-chloro-2-methyl-4-isothiazolin-3-one, 0.05 to 0.2 percent of citric acid and the balance of 79.35 to 91.65 percent of water. The foaming agent disclosed by the invention is used for construction under minus 20 DEG C, is particularly suitable for winter construction and is used for improving a soil body of which a construction soil layer is fine sand, medium-coarse sand and / or sandy gravel, the transparency of the foaming agent used for shield construction under a low-temperature condition in winter is ensured, so that a high foaming rate of the foaming agent is ensured, the foam stability is high, and an adverse effect brought to the construction as the foaming agent changes along with the temperature is reduced.
Owner:北京铁五院工程机械有限公司 +1

Combined type fire extinguishing agent and preparation method thereof

The invention belongs to the field of combined type fire extinguishing agent processing, and specifically relates to a combined type fire extinguishing agent and a preparation method thereof. The fireextinguishing agent is composed of a propellant and a feed liquid in a weight ratio of (2-15) to 100; the feed liquid comprises a surfactant, a foaming agent, a thickening agent, a foam stabilizer, acorrosion inhibitor, a flame retardant, a foam reinforcing agent, a penetrating agent, a solvent, an indicator and a pH regulator; the propellant is composed of nitrogen gas and carbon dioxide. The foaming agent is formed by mixing a plurality of substances. The fire extinguishing agent selects a fluorine-containing surfactant and the foam stabilizer which is not used by other fire extinguishingagents, and each component agent is formed by combined type component matching, so that very good foaming effect and very good foam-stabilizing effect can be achieved; the propellant is combined in various ways, and meets the jetting effect better in comparison with a single propellant; and used raw materials do not contain phosphor, so that eutrophication of a water body is not caused, and therefore, the combined type fire extinguishing agent is very strong in environment friendliness, and has an extremely great market prospect and an extremely great economic value.
Owner:广东自由能科技股份有限公司
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