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180results about How to "Good foam stability" patented technology

Ammonium stearate emulsion and producing method thereof

The invention relates to ammonium stearate emulsion and a producing method thereof, belonging to the technical field of auxiliary chemicals. The ammonium stearate emulsion comprises the following components with the weight percentage: 15-35% of stearic acid, 6-14% of 20% ammonia water, 1-3% of lauryl sodium sulfate and the rest of water. The production technique is that a reaction vessel is sequentially added with the stearic acid, the lauryl sodium sulfate and the water according to the formulation amount, the temperature is regulated to be 10-25 DEG C; after being evenly stirred, the mixture in the reaction vessel is added with the ammonia water, and the mixing speed is adjusted; the prepared ammonium stearate liquid is absorbed into an emulsifying tank for emulsification, stands still for 1-2h, and then is filtered, so that the ammonium stearate emulsion is obtained. The invention is suitable for large scale continuous production, ensures the reaction to be very safe under normal temperature and pressure, and has the advantages of simple input equipment, saved cost, no pollution and emission in the whole production process, silvery white and lustrous finished products, excellent fluidness and stability, low product viscosity (being lower than or equal to 350cps), high purity, good dispersion effect and convenient use. The ammonium stearate emulsion can be fully dispersed in waterborne liquid, has about six-month shelf life and is hard to become thick after being placed for a long time.
Owner:海宁市树桥纺织科技有限公司

Foam water-drainage agent and its aqueous solution

The invention discloses a foam water-drainage agent and its aqueous solution, and belongs to the technical field of the oilfield chemical engineering. The foam water-drainage agent is composed of 50-80 parts by weight of a Sapindus mukurossi Gaertn extract, 20-40 parts of fatty alcohol polyoxyethylene ether AEO18, 1-5 parts by weight of polyacrylamide and 5-10 parts by weight of triethanolamine. The foam water-drainage agent has the characteristics of strong foaming capability after meeting water, good foam stability, and high liquid carrying capability and high mineralization resistance of foams, and is suitable for the use in natural gas wells containing gas condensate and having a high mineralization and a large water output; the foam water-drainage agent has a foam stability of 170mm, has a foam water content of not more than 2.0%, has a mineralization resistance of 250g/L, has a gas condensate resistance of 30%, has a temperature resistance of 90DEG C, is non-toxic, is easy to degrade, and does not pollute the environment; and the foam water-drainage agent has the advantages of compatibility with chemicals comprising methanol, a corrosion inhibitor, a scale inhibitor and the like, no chemical reaction with gas or liquid components, no increase to the toxicities of gases or combustion products, and no corrosion to equipment or pipelines.
Owner:CHINA PETROLEUM & CHEM CORP +1

Aqueous polyurethane-acrylate resin for use as foaming material for synthetic leather and preparation method thereof

The invention discloses an aqueous polyurethane-acrylate resin for use as a foaming material for synthetic leather and a preparation method thereof. The aqueous polyurethane-acrylate resin has the structural characteristics that: the content of organosilicon element in the side chain of the molecule of the polyurethane is 3 to 7 percent; the content of a hydrophilic group in the side chain of the polyurethane is 1 to 3.5 percent; the content of a polyether and / or polyester and / or polybutadiene chain segment is 30 to 52 percent; and the content of a polyacrylate segment is 30 to 60 percent. The aqueous polyurethane-acrylate resin has the preparation characteristics that: a polymer material prepared by introducing siloxane into the side chain has high mechanical performance and high water resistance; and the use of alpha, omega-terminated amino polyoxypropylene as a chain extender improves the solid content of emulsion and the molecular weight of polyurethane- at the same time, and the introduced polyoxypropylene has high mechanical foaming performance. The aqueous polyurethane-acrylate resin prepared by the method disclosed by the invention is safe and environment-friendly, the emulsion is stable in performance and easy to foam, the foaming performance of the emulsion is high, and the aqueous polyurethane-acrylate resin is suitable for making the foamed layer of synthetic leather.
Owner:兰州科天水性科技有限公司

Waterproof crack-resistant foam concrete and manufacture method

The invention discloses waterproof crack-resistant foam concrete and a manufacture method thereof. The waterproof crack-resistant foam concrete is formed by mixing and stirring of raw materials including, by weight, 220-350 parts of cement, 90-180 parts of microspheres, 1-6 parts of elastic particles, 0.30-0.45 parts of palm filaments, 60-160 parts of water, 2-9 parts of waterproof admixtures and foam. The waterproof crack-resistant foam concrete and the manufacture method thereof have the advantages that the raw materials such as industrial by-products, tailings powder or waste rubber powder and the palm filaments are adopted, and the multi-scale toughening principle on compounding of the elastic particles and fibers is followed, so that strength and crack resistance of the foam concrete are improved, and waste resource utilization is benefited; the adopted waterproof admixtures are highly compatible with other materials, and accordingly, water resistance and durability of the foam concrete are improved effectively; by the prepared foam which is fine, uniform and high in stability, anti-permeability and thermal performance of the foam concrete are improved; the foam concrete is applicable to heat insulation of building walls and roofs and roadbed refilling materials for highways in regions with soft soil and high water level.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

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

Hypersalinity resistant foam scrubbing agent composition used for drainage gas recovery and preparation method and application thereof

The invention relates to a hypersalinity resistant foam scrubbing agent composition used for drainage gas recovery and a preparation method and application thereof. The hypersalinity resistant foam scrubbing agent composition used for drainage gas recovery aims at solving the problems of reduction of output and even flowing stop of gas wells caused by excessive hydrops during developing of the current gas wells. According to the adopted technical scheme, the foam scrubbing agent is prepared from, by mole fraction, 1 part of long chain polyether nitrogen compound and 0.5-20 parts of sulfonated fatty acid alkyl ester, wherein the general molecular formula of the long chain polyether nitrogen compound is shown as a formula (I), and R1 is a fatty group of C8-C30; y is a PO chain segment adding number; z is a EO chain segment adding number; R2 is a alkylene of C1-C4; R3, R4 are any one of a alkyl group and a substituted alkyl group; the hypersalinity resistant foam scrubbing agent composition used for drainage gas recovery solves the problem well. The foaming height of the hypersalinity resistant foam scrubbing agent composition is larger than 200 mm, the liquid carrying capability of the hypersalinity resistant foam scrubbing agent composition is larger than 140 mL, and the hypersalinity resistant foam scrubbing agent composition can be used for the drainage gas recovery of hyperhaline gas wells. The formula is shown in the description.
Owner:CHINA PETROLEUM & CHEM CORP +1

Preparation method of acrylic acid modified waterborne polyurethane dispersion liquid used for metallic paint

The invention discloses a preparation method of an acrylic acid modified waterborne polyurethane dispersion liquid used for metallic paint. The preparation method of the acrylic acid modified waterborne polyurethane dispersion liquid used for the metallic paint comprises the following steps: uniformly mixing isophorone diisocyanate, polyether polylol and polyester polylol, performing reaction under the catalytic action of stannous octoate for 1-3 hours at the temperature of 80-95 DEG C, so as to obtain a prepolymer; adding a micromolecule chain extender and a hydrophilic monomer into the prepolymer, performing chain extension for 0.5-1 hour at the temperature of 80-85 DEG C, sealing residual end -NCO by utilizing hydroxyethyl acrylate, then adding a neutralizing agent for neutralization and salification, and adding water for emulsification, so that water-based dispersion liquid is obtained; adding an initiator, an emulsifier and other acrylic acid monomers into the water-based dispersion liquid, and performing free radical polymerization for 3-5 hours at the temperature of 85-100 DEG C, so that acrylic acid modified waterborne polyurethane dispersion liquid is obtained. According to the preparation method of the acrylic acid modified waterborne polyurethane dispersion liquid used for the metallic paint, ammonium persulphate is used as the initiating agent, polyether phosphate ester and alkylolamide surfactant are used as the emulsifier, completely successfully emulsified acrylic acid modified waterborne polyurethane dispersion liquid can be prepared, and the obtained acrylic acid modified waterborne polyurethane dispersion liquid has excellent acid resistance, alkali resistance and salt fog resistance and excellent hardness and mechanical property.
Owner:上海福岛新材料科技有限公司
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