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934 results about "Antifoam agent" patented technology

High-performance anti-wear engine lubricating oil as well as preparation method and application thereof

The invention discloses high-performance anti-wear engine lubricating oil as well as a preparation method and application thereof. The high-performance anti-wear engine lubricating oil is prepared from the following raw materials: self-developed lubricating oil base oil, poly-alpha-olefin, zinc dialkyl dithiophosphate, calcium sulfonate, polyisobutylene succinimide, an antioxidant, polymethacrylate, an organic molybdenum complex, a de-foaming agent and a pour point depressant. The preparation method comprises the following steps: 1) synthesizing 9, 10-bis (2-tert-butyl-4-methylphenoxy) trimethylolethane stearate as base oil of the lubricating oil; and 2) mixing the base oil with other assistants to obtain the high-performance anti-wear engine lubricating oil. According to the preparation method, novel-like synthetic ester oil is firstly prepared, a phenol group and a large steric hindrance substituent group are introduced into a polymer, the anti-oxidation function is directly built in base oil molecules, meanwhile, super-strong heat resistance is achieved, and finally the high-performance anti-wear engine lubricating oil is obtained and can be applied to high-end application scenes such as aero-engines or gas turbines.
Owner:ZHENGZHOU JIURUN LUBRICATING OIL CO LTD

Anticorrosive coating composition

This anticorrosive coating composition comprises a main agent (I) and a curing agent (II), wherein: the main agent (I) contains an epoxy resin (a); the epoxy resin (a) contains at least one of a bisphenol A epoxy resin (a-11) and a novolac epoxy resin (a-12) each having a weight average molecular weight of 6,000-12,000; the curing agent (II) contains a polyamine (b) and an alkylphenol (c); the polyamine (b) contains an alicyclic polyamine (b-1) having a cyclic aliphatic hydrocarbon group to which an amino group is bonded and contains a non-alicyclic polyamine (b-2) having no cyclic aliphatic hydrocarbon group to which an amino group is bonded; at least one of the main agent (I) and the curing agent (II) includes a vinyl-based defoaming agent (d) that has a constituent unit derived from at least one monomer selected from the group consisting of alkyl (meth)acrylates, alkyl vinyl ethers, and olefins and that has a number average molecular weight of 30,000-100,000 or 300,000-2,000,000; the content of the alicyclic polyamine (b-1) is 30%-80% by mass of the solid content of the curing agent (II); the content of the non-alicyclic polyamine (b-2) is 2%-45% by mass of the solid content of the curing agent (II); the content of the alkylphenol (c) is 5%-60% by mass of the solid content of the curing agent (II); and the content of the vinyl-based defoaming agent (d) is 0.005-3 parts by mass with respect to 100 parts by mass of the anticorrosive coating composition.
Owner:NIPPON PAINT CO LTD

Low-viscosity high-dispersity aluminum oxide slurry and preparation method thereof

The invention belongs to the field of functional composite materials, and particularly relates to low-viscosity and high-dispersity aluminum oxide slurry and a preparation method thereof.The low-viscosity and high-dispersity aluminum oxide slurry is prepared from a newly-designed phosphono-carboxyl block copolymer and biquaternary ammonium salt polyether silane as composite modifiers; and efficient anchoring and stable dispersion of the surfaces of alumina particles are realized through the synergistic effect of molecular structures. The phosphono-carboxyl block copolymer is prepared through controllable polymerization and deprotection reaction, and strong chemical bonding is formed between a phosphono group and the surface of aluminum oxide; the biquaternary ammonium salt polyether silane is subjected to click chemical synthesis, and electrostatic adsorption of quaternary ammonium salt and the steric hindrance effect of a polyether chain are combined. When the slurry is prepared, the two modifiers are sequentially added into water, the aluminum oxide powder is added after the pH value is adjusted, finally, the isobutylene maleic anhydride copolymer and the defoaming agent are introduced, and the slurry is obtained through vacuum defoaming and filtering. The slurry prepared by the method has the characteristics of high solid content, low viscosity and good dispersion stability.
Owner:CHONGQING HOUSHENG NEW MATERIAL TECHNOLOGY CO LTD

Daylighting resin as well as preparation method and application thereof

ActiveCN120795294ABenzoic acidPolymer science
The invention discloses lighting resin as well as a preparation method and application thereof, and belongs to the technical field of lighting type unsaturated polyester resin. Comprising the following components: ethylene glycol, benzoic acid, phthalic anhydride, maleic anhydride, an antioxidant, a defoaming agent, a surfactant, a stabilizer, styrene, a solvent, a first polymerization inhibitor, a second polymerization inhibitor and a third polymerization inhibitor. The alcohol-acid ratio is (1.03-1.13): 1; the molar ratio of unsaturated acid to saturated acid is (2.5-3.5): 1; the mass ratio of benzoic acid to the surfactant is (26.8-44): 1; the preparation method comprises the following steps: 1) reacting ethylene glycol, maleic anhydride, phthalic anhydride, benzoic acid, an antioxidant and a first polymerization inhibitor; the preparation method comprises the following steps of (1) adding a first polymerization inhibitor, (2) heating and preserving heat after the reaction is completed, and (3) cooling, adding a second polymerization inhibitor, cooling, adding a third polymerization inhibitor, a cross-linking agent, a surfactant and a defoaming agent, and adding a solvent to obtain the daylighting resin.According to the preparation method, the surfactant and benzoic acid have a synergistic effect, so that the compatibility of polyester and the cross-linking agent is improved.
Owner:SHANDONG WANGLIN NEW MATERIALS CO LTD +2

High-temperature-corrosion-resistant lubricating oil and preparation method thereof

The invention relates to the technical field of lubricating oil, in particular to high-temperature-corrosion-resistant lubricating oil and a preparation method thereof. The high-temperature-corrosion-resistant lubricating oil is prepared from the following raw materials in parts by mass: 130 to 190 parts of base oil, 1 to 5 parts of an anti-wear reagent at extreme pressure, 1 to 5 parts of amino modified graphene, 0.1 to 1 part of an anti-rust agent, 1 to 3 parts of an antioxidant, 0.1 to 1 part of a de-foaming agent, 5 to 15 parts of trioctyl trimellitate, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of sodium bentonite. The high temperature resistance and the viscosity-temperature performance of the lubricating oil can meet the use requirements of a bearing under the working conditions of high speed, high temperature and large load, the wear resistance and the friction reduction of the lubricating oil at high temperature are effectively improved, and meanwhile the preparation method is simple and suitable for large-scale popularization and application.
Owner:湖北玥研科技有限公司

Fracturing imbibition system for repeated fracturing of low-permeability tight oil reservoir and preparation method of fracturing imbibition system

The invention discloses a fracturing imbibition system for refracturing a low-permeability tight oil reservoir and a preparation method of the fracturing imbibition system, and belongs to the technical field of fracturing fluids, the fracturing imbibition system comprises: an acid liquid base fluid: hydrochloric acid, hydrofluoric acid, EDTMPS and deionized water; an amphoteric betaine viscoelastic surfactant; biologically modifying the nanoparticles; a Gemini cationic surface active agent; a corrosion inhibitor; and an organic silicon defoaming agent and a fluorocarbon discharge aiding agent. According to the fracturing imbibition system, through the integrated design of the multifunctional surfactant, the problems that a traditional acid fracturing fluid is insufficient in silicate mineral dissolving capacity, high-temperature viscosity is attenuated, and corrosion inhibitor dependence is caused are solved.
Owner:XIAN HUANMOKUN IND CO LTD

Weeding composition for preventing and removing annual weeds in paddy field and preparation method of weeding composition

The invention discloses a weeding composition and a preparation method thereof. The weeding composition comprises the following components in percentage by weight: 10-30% of propanil, 0.6-6% of fenquantel, 0.2-2% of cyclopropanesulfonamide, 2-6% of a stabilizer, 3-8% of a dispersing agent, 3-5% of an anti-freezing agent, 0.1-0.3% of a defoaming agent, 0.1-1% of a thickening agent and the balance of water. Wherein the ratio of propanil to fenquantel to the stabilizer is 5: (0.1-1): 1. The weeding composition provided by the invention can effectively prevent and remove annual weeds in paddy fields, is safe to paddy rice and high in preparation stability, has very high market value, and solves the problems of poor safety, environmental harm and the like in the process of preventing and removing annual weeds in paddy fields by using the existing medicament.
Owner:ZHEJIANG TIANFENG BIOLOGICAL SCI

PH-responsive mould-targeted controlled-release essence microcapsule for daily use and preparation method thereof

PendingCN121775763ABiocideSoap detergents with perfumesControlled releaseBiology
The invention relates to the technical field of controlled-release microcapsules, and particularly discloses a pH-responsive mold-targeted controlled-release essence microcapsule for daily chemicals and a preparation method thereof.The preparation method comprises the following steps that S1, chitosan is dissolved with an acid solution, a catalyst and a pH sensitive reagent are added under the protective atmosphere for a reaction, and a pH-responsive graft copolymerization product is obtained through separation and purification; s2, mixing the pH response graft copolymerization product, a cross-linking agent and a mould targeting reagent for reaction, and dialyzing and purifying to obtain a microcapsule wall material; and S3, emulsifying essence by using an emulsifier, and then adding a defoaming agent, the microcapsule wall material, the sodium tripolyphosphate aqueous solution and a pH regulator to prepare the pH-responsive mold-targeted controlled-release essence microcapsule for daily use. The microcapsule integrates specific recognition targeting ability and pH response release ability to mould, and can accurately release natural essence with bacteriostatic and aromatic functions at the mould breeding part of clothes, so that the dual effects of bacteriostasis and aroma retention are realized.
Owner:HUBEI XINGRUI SILICON MATERIAL CO LTD

Neutral organic chelating cleaning agent for boiler

The invention discloses a neutral organic chelating cleaning agent for a boiler, and belongs to the field of chemical cleaning of boiler superheaters of thermal power plants. The cleaning agent is prepared from the following components in percentage by weight: 0.5%-5% of ethylenediamine tetraacetic acid ammonium, 0.1%-4% of acetic acid or ammonium acetate, 0.1%-3% of glycollic acid ammonium or glycollic acid, 0.1%-5% of a pH regulator, 0.1%-1% of a cosolvent, 0.2%-0.8% of a corrosion inhibitor SH369, 0.1%-0.6% of a reducing agent, 0.0%-0.3% of a defoaming agent, 0.0%-0.2% of a surfactant and 84%-93% of water, wherein the pH value of the cleaning agent is 6-8; the cosolvent is tartaric acid and / or hydroxybutyl diacid, the surfactant is nonylphenol polyoxyethylene ether, and the reducing agent is hydrazine. The cleaning agent disclosed by the invention has good dissolving capacity on oxide skin, does not generate precipitates to cause pipe blockage, is a neutral solution, is very small in corrosivity, does not generate intergranular corrosion, is beneficial to protecting various pipes of superheaters and reheaters, and is a safe and efficient superheater cleaning agent.
Owner:XIAN XIELI POWER TECH

Bi-component epoxy pouring sealant as well as preparation method and application thereof

The invention discloses a two-component epoxy pouring sealant as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The bi-component epoxy pouring sealant comprises a component A and a component B. The component A comprises the following raw materials: 60-100 parts of modified epoxy resin; 5-25 parts of a reactive diluent; 1 to 10 parts of nano silicon dioxide; the component B comprises the following raw materials in parts by mass: 50-60 parts of an alicyclic amine curing agent; 20-30 parts of a polyether amine curing agent; 10 to 15 parts of methyl tetrahydrophthalic anhydride; 3-5 parts of a silane modifier; 0.1 to 0.5 part of a defoaming agent; the modified epoxy resin is prepared by carrying out esterification reaction on bisphenol A type epoxy resin and long-chain fatty acid for modification and then carrying out graft modification with polypropylene glycol diglycidyl ether. In addition, the invention also provides a preparation method of the two-component epoxy pouring sealant. The epoxy pouring sealant provided by the invention has excellent bonding performance on non-polar plastics such as PP / PE and the like.
Owner:SHAOYANG BA BROTHER NEW MATERIAL TECH CO LTD

Seed treatment suspending agent containing clothianidin, prothioconazole and fludioxonil

The invention relates to the technical field of seed treatment suspending agents. The invention discloses a seed treatment suspending agent containing clothianidin, prothioconazole and fludioxonil as well as a preparation method and application of the seed treatment suspending agent. The seed treatment suspending agent is prepared from the following raw materials: clothianidin, prothioconazole, fludioxonil, a bactericidal synergist, a dispersing agent, a wetting dispersing agent, a thickening agent, a preservative, an anti-freezing agent, a film-forming agent, warning coloration, a de-foaming agent and de-ionized water. The seed treatment suspending agent containing clothianidin, prothioconazole and fludioxonil prepared by the invention is good in suspending performance, low-temperature stability and heat storage stability. The application amount and the harm to the environment are reduced. The invention also relates to application of the seed treatment suspending agent in prevention and treatment of diseases and insect pests.
Owner:SHANDONG DEHAO CHEMICAL CO LTD

Low-temperature-resistant lubricating oil composition and preparation method thereof

The invention relates to the technical field of lubricating oil, and discloses a low-temperature-resistant lubricating oil composition and a preparation method thereof. Mineral oil, modified polymethacrylate, a dispersing agent, an antioxidant and an oil defoaming agent are stirred and mixed and then filtered, and the low-temperature-resistant lubricating oil composition is obtained. The cross-linking agent enables polymethacrylate to form a light cross-linked structure, and stress can be dispersed during shearing; nitrogen atoms in triazinyl, pyridyl, pyrrolidone and Mannich base structures serve as hydrogen bond receptors, the hydrogen bond interaction with hydroxyl on a polymethacrylate molecular chain is enhanced, a physical cross-linked network is formed, and the shear resistance is further improved; in the modified low-temperature-resistant monomer, the glass-transition temperature can be remarkably reduced by high flexibility of silicon oxygen bonds in long straight-chain alkyl and silane groups, so that a molecular chain can still move at a low temperature, and the low-temperature fluidity of the lubricating oil is improved; the cyclic structure of cyclohexyl can effectively interfere with the ordered arrangement of wax crystals, reduce the pour point of the lubricating oil and improve the low-temperature fluidity.
Owner:TONGYI PETROLEUM CHEM CO LTD

Marine antifouling paint and preparation method thereof

The invention relates to the field of marine antifouling paint, and particularly discloses marine antifouling paint and a preparation method thereof. The marine antifouling paint is prepared from, by weight, 40%-60% of matrix resin, 10%-15% of solvent, 6%-15% of antifouling agent, 15%-30% of filler, 5%-10% of curing agent, 0.1%-1.0% of defoaming agent, 0.1%-1.0% of dispersing agent and 0.1%-1.0% of flatting agent, and the matrix resin comprises self-polishing resin and tough resin according to the weight ratio of 7: (1-6). The marine antifouling paint provided by the invention has relatively high flexibility, relatively high adhesion strength with a base material, good mechanical properties and a relatively long-lasting relatively high antifouling effect.
Owner:GUANGDONG HOSEN NEW MATERIALS CO LTD

A manufacturing method for anticorrosion paint with excellent adhesion to rusty, low-treatment surfaces

This application discloses a method for producing an anticorrosion coating having excellent adhesion to rusted, low-treatment surfaces, which relates to the field of paint chemical industry. The anticorrosion coating comprises Component A and Component B, where Component A comprises an epoxy resin, double-coated hollow glass microbeads, a thixotropic agent, a wetting and dispersing agent, a pigment, barium sulfate, talc, Solvent A, an antifoaming agent, a first silane coupling agent, and an aluminum powder paste, and Component B comprises a curing agent, an accelerator, and Solvent B.
Owner:MARINE CHEM RES INST CO LTD

A mefenoxam · mancozeb dry suspension agent and a preparation method thereof

ActiveCN116172011BBiocideFungicidesMetalaxylActive agent
This invention relates to the field of pesticide technology, particularly to the field of IPC A01N, and more specifically, to a dry suspension concentrate of metalaxyl-mancozeb and its preparation method. By weight percentage, the raw materials are: 10-72% mancozeb technical grade, 1-10% metalaxyl technical grade, 7-35% surfactant, 5-20% disintegrant, 0.1-2% defoamer, and filler to 100%. The metalaxyl-mancozeb dry suspension concentrate of this invention employs multi-stage grinding to control the particle size of the suspension concentrate to below 5μm, the suspension rate to ≥90%, and the moisture content to below 2.0%. It features strong atomization and dispersibility, rapid wetting, high suspension rate, strong penetration, and non-degradation at room temperature. In use, it reduces pesticide usage while improving control efficacy.
Owner:JIANGYIN SULI CHEM

Organic silicon defoaming composition used in anti-cancer drug and preparation method of organic silicon defoaming composition

The invention discloses an organic silicon defoaming composition for an anti-cancer drug and a preparation method of the organic silicon defoaming composition, and relates to the technical field of defoaming agents. The organic silicon defoaming composition is prepared from the following raw materials in parts by weight: 60 to 70 parts of polyether modified silicone oil, 10 to 15 parts of fumed silica, 4 to 6 parts of a surfactant, 3 to 6 parts of a dispersing agent, 1 to 2 parts of a thickening agent, 5 to 8 parts of a stabilizer and 20 to 30 parts of deionized water. The organic silicon defoaming composition prepared by the invention has good defoaming and foam-inhibiting performance, dispersing performance and high-temperature stability.
Owner:JIANGSU SAIOUXINYUE DEFOAMER

Elastic radix asparagi polyurea color sand self-leveling floor material and preparation method thereof

The invention belongs to the technical field of radix asparagi polyurea, and particularly relates to an elastic radix asparagi polyurea color sand self-leveling floor material and a preparation method thereof. The water-based paint is prepared from a component A and a component B. The component A comprises polyaspartic acid ester resin, inorganic filler, a water removal agent, colored sand, color paste and auxiliaries. The component B is prepared from isophorone diisocyanate based polyisocyanate, an isocyanate tripolymer and a solvent; the auxiliary agent is a mixture of a dispersing agent, a defoaming agent, a light stabilizer, an ultraviolet light absorber, a flatting agent, an anti-settling agent and a silane coupling agent. The component A and the component B react to generate a urea bond structure, so that the material is endowed with excellent toughness and chemical corrosion resistance; the component B is reasonably matched, so that the rebound resilience of the material is improved, and the safety and comfort of the floor material are further improved; the used raw materials do not contain groups prone to yellowing, so that the prepared floor material is not prone to yellowing, color fading or pulverization when exposed to sunlight outdoors for a long time, and excellent weather resistance is achieved.
Owner:SHANDONG CENTURY UNION NEW MATERIALS TECH CO LTD

Defoaming agent stably dispersed in liquid detergent

According to the invention, a polyether modified polysiloxane and polyether emulsified silicone grease composition is used as an oil phase for emulsion preparation, and hydrophilic silicon dioxide is dispersed in a polyacrylate aqueous solution at a high speed to be used as a water phase for emulsion preparation. The hydrophilic silicon dioxide is stably dispersed in a water phase in the form of fine particles due to the thickening and stabilizing effects of the polyacrylate. In emulsion preparation, the emulsion has excellent stability due to a net structure formed by hydrogen-bond interaction among hydroxyl groups on the surface of hydrophilic silicon dioxide, nanoscale polyether modified polyacrylate latex introduced by compounding in the later stage is adsorbed on the surfaces of particles in the emulsion, demulsification caused by particle aggregation is prevented, and the dispersion stability of the defoaming agent is further enhanced. Besides, the used hydrophilic white carbon black, polyacrylate and polyether modified polyacrylate almost have no influence on the clarity of the liquid detergent, and the silicone polyether emulsified silicone grease composition is combined, so that the compatibility of the silicone grease composition and the liquid detergent is increased, and meanwhile, the clarity of the liquid detergent is also ensured.
Owner:JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD

Waste gas absorption liquid for treating large-air-volume low-concentration waste gas through water-based method

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.
Owner:XIAMEN ADIT ENVIRONMENTAL PROTECTION TECH CO LTD

Nucleic acid releasing agent for isothermal amplification and use method thereof

The invention relates to the field of molecular biology, and discloses a nucleic acid releasing agent for isothermal amplification and a use method of the nucleic acid releasing agent. Comprising the following steps: step 1, preparing a polyoxypropylene polyoxyethylene copolymer diluent, a defoaming agent SE-15 diluent, an ethyl phenyl polyethylene glycol NP-40 diluent, a sodium polyethylene sulfonate diluent and a Proclin300 diluent in sequence through RNA enzyme-free water; and 2, sequentially preparing an ethylenediamine tetraacetic acid disodium salt mother solution, a sodium dodecyl sulfate mother solution and a glycine mother solution through RNA enzyme-free water. Sodium polyethylene sulfonate can be specifically combined with protein amplification inhibitors in a sample to remove mucoprotein, hemoglobin, polysaccharide and other inhibitors in the swab sample, and disodium ethylene diamine tetraacetate can chelate metal ions to reduce the influence of nuclease on target nucleic acid.
Owner:WUHU 3H BIOTECHNOLOGY CO LTD +1

Multifunctional concrete external curing agent as well as preparation method and application thereof

ActiveCN120864901AThermal dilatationEmulsion
The invention discloses a multifunctional concrete external curing agent and a preparation method and application thereof, and belongs to the technical field of concrete admixtures, the multifunctional concrete external curing agent comprises the following raw materials by weight: 40-85 parts of a water-based resin emulsion, 1-3 parts of thermal expansion microspheres, 0.3-5 parts of a coalescing agent, 0.02-0.06 part of an antifoaming agent, and 0-1 part of a pH regulator. The multifunctional concrete external curing agent provided by the invention has synergistic composite functions, has excellent environmental protection property, and meets the requirements of green and environment-friendly building materials. The product provided by the invention can replace a traditional curing process, is suitable for concrete engineering under severe conditions of high temperature, dryness, strong wind and the like, remarkably improves the construction efficiency, reduces the curing cost, and has a wide market value.
Owner:SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS +3

Special emulsion for large-particle-size high-air-permeability soft porcelain as well as preparation method and application of special emulsion

The invention belongs to the technical field of building materials, and discloses a special emulsion for large-particle-size high-air-permeability soft porcelain and a preparation method and application thereof, and the emulsion comprises a seed phase, a core emulsion phase, a hard-shell pre-emulsion phase, an initiation system and a post-treatment auxiliary agent; the core emulsion phase comprises deionized water, 2-ethylhexyl acrylate, glycidyl methacrylate, a toughening aid, ethyl phosphate methacrylate and an OP-10 emulsifier; the toughening aid is a polyether-polyester block copolymer; the post-treatment auxiliary agent comprises an antibacterial flame retardant, an organic silicon defoaming agent and ammonia water, the antibacterial flame retardant is a benzisothiazolinone derivative containing phosphorus and nitrogen, performance complementation is achieved through the layered design of a core-shell structure, and meanwhile the stability and adhesive force are improved by means of the reactive emulsifier and the functional monomer; in addition, the polyether polyester block type reactive toughening aid and the phosphorus and nitrogen-containing benzisothiazolinone derivative antibacterial flame retardant are added, so that synergistic optimization of toughening, antibacterial and flame retardant is realized.
Owner:GUANGDONG XINRUN STONE NEW MATERIALS CO LTD

High-flexibility tear-resistant epoxy structural adhesive as well as preparation method and application thereof

The invention provides a high-flexibility tear-resistant epoxy structural adhesive as well as a preparation method and application thereof. The epoxy structural adhesive is prepared by mixing a component A and a component B, on the basis of the total weight of the component A, the component A comprises the following components in percentage by weight: 34-70% of modified epoxy resin, 5-30% of bisphenol A type epoxy resin, 2-6% of benzyl alcohol, 8-15% of an epoxy reactive diluent, 0.2-1.5% of a defoaming agent, 1-5% of a thixotropic agent, 5-40% of filler and 1-4% of epoxy color paste; on the basis of the total weight of the component B, the component B comprises the following components in percentage by weight: 55-75% of polyether amine, 5-15% of bisphenol A epoxy resin, 5-10% of benzyl alcohol and 10-20% of dodecylphenol. The mixing mass ratio of the component A to the component B is (3.7-7): 1. The modified epoxy resin and the bisphenol A epoxy resin are compounded, and an optimized curing system is combined, so that the flexibility and the tear resistance of the structural adhesive are remarkably improved while the high strength of the epoxy resin is maintained, and the structural adhesive is suitable for structural bonding in the fields of buildings, automobiles, electronics and the like.
Owner:FUJIAN CANGSHENG CHEMICAL CO LTD

Protective coating for fuel storage and transportation cabin and preparation method of protective coating

The invention provides a protective coating for a fuel storage and transportation cabin and a preparation method thereof, the protective coating comprises a primer layer, and the primer layer comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 20 to 40 parts of phosphorylated-sulfur heterocyclic modified epoxy resin, 0.1 to 1 part of dispersing agent, 0.1 to 1 part of flatting agent, 0.1 to 1 part of defoaming agent, 0 to 10 parts of n-butyl alcohol, 0 to 10 parts of xylene, 10 to 15 parts of zinc phosphate, 0.5 to 1.0 part of thixotropic agent, 10 to 15 parts of flaky filler, 20 to 35 parts of talcum powder, 5 to 10 parts of barite powder and 3 to 10 parts of titanium dioxide; the component B is prepared from the following raw materials in parts by weight: 99 to 100 parts of amino resin and 0.3 to 0.8 part of a catalyst. Phosphorylation-sulfur heterocycle is utilized to modify epoxy resin, a phosphating group (P-O-C) is generated, the lipophobicity is increased, an intrinsic anti-swelling network is constructed based on a sulfur / phosphorus atom covalent bonding epoxy skeleton, and by utilizing the three-dimensional shielding effect of phosphorus atoms and the high-density cross-linking characteristic of thioether bonds, the anti-swelling performance of the epoxy resin is improved. Fuel oil permeation channels are blocked from the molecular level, pollutant dissolution is inhibited, and it is ensured that the coating has good soaking resistance to fuel oil.
Owner:XIAMEN SUNRUI SHIP COATING

Environment-friendly concrete water reducing agent and preparation method thereof

The invention discloses an environment-friendly concrete water reducing agent and a preparation method thereof. The water reducing agent is prepared from the following raw materials in parts by weight: 25 to 60 parts of polycarboxylic acid water reducing agent mother liquor, 1.5 to 3 parts of modified early strength agent, 0.1 to 0.6 part of defoaming agent, 6 to 15 parts of water-retaining agent, 1.5 to 3.5 parts of dispersing agent, 0.4 to 1.2 parts of air entraining agent and 3 to 6 parts of retarder. The preparation method comprises the following steps: dissolving lignosulfonate in water, adjusting the pH value to 9-11, adding hydrogen peroxide, carrying out a reaction at 60-65 DEG C for 2-4 h, and carrying out drying so as to obtain modified lignosulfonate; the modified early strength agent is prepared from sodium citrate, nano silicon dioxide and a silane coupling agent according to the weight ratio of (3 to 5): 1: (0.08 to 0.12). The water reducer provided by the invention has the advantages of efficient water reduction, stable delayed coagulation, early strength and coagulation promotion and environmental friendliness.
Owner:ZHEJIANG FANGYUAN BUILDING MATERIALS TECH

Recyclable water-based metal cutting fluid and preparation method thereof

The invention discloses a recyclable water-based metal cutting fluid and a preparation method thereof. The cutting fluid comprises the following raw materials in parts by weight: 32-36 parts of base oil, 8-12 parts of amines, 9-12 parts of a surfactant, 0-8 parts of an extreme pressure agent, 6-9 parts of a lubricant, 4-6 parts of an antirust agent, 0-2 parts of a bactericide, 2-4 parts of a coupling agent, 0.1-1 part of a defoaming agent and the balance of deionized water. The preparation method comprises the following steps: dissolving the amine in water in advance, adding the anti-rust raw material into the amine solution, fully stirring until the anti-rust raw material is completely dissolved, finally adding the base oil, the surfactant and other additives, and continuously stirring until the anti-rust raw material is completely clarified and transparent. The preferable antirust agent is tris (2-carboxyethyl) phosphine oxide, the excellent extreme pressure effect and bactericidal performance are achieved through carboxyethyl and phosphine oxide structures contained in the tris (2-carboxyethyl) phosphine oxide, and the finished product has good long-term stability, high oil film lubricity and excellent antirust and anti-corrosion performance.
Owner:XIANGZHE TECHNOLOGY (HUBEI) CO LTD

Environment-friendly water-based adhesive and preparation method thereof

The invention relates to the technical field of adhesives, and discloses an environment-friendly water-based adhesive and a preparation method thereof.The environment-friendly water-based adhesive is prepared by taking a modified polyurethane matrix as a base material and taking a wetting agent, a defoaming agent, a thickening agent and a photoinitiator as auxiliary materials, jointly adding the materials into deionized water and mixing the materials, the modified polyurethane matrix is prepared from a soft segment monomer and a modified monomer, and a high-temperature-resistant silica skeleton and a hydrophilic sulfonic acid group are introduced into the soft segment monomer through chemical bonding, so that the adhesive is endowed with good high-temperature resistance and hydrophilicity; a modified monomer is prepared by introducing a water-soluble phenolic resin polymer with good heat resistance, bonding strength and other properties into an olefinic bond, and the olefinic bond in the modified monomer is initiated to generate a free radical polymerization reaction under the conditions of a photoinitiator and ultraviolet irradiation, so that quick crosslinking curing can be realized, and the adhesive has good adhesion. The adhesive is endowed with the characteristics of high bonding strength and rapid curing.
Owner:JIAXING JIAHE WOOD IND CO LTD

Resource utilization method and device for high-salinity wastewater

The invention discloses a high-salinity wastewater resource utilization method and device, belongs to the technical field of chemical engineering, and relates to wastewater treatment. The invention relates to a high-salinity wastewater resource utilization method which comprises the following steps: (1) deep removal of organic matters in a high-salinity system: realizing selective separation and removal of the organic matters in wastewater by using a synergistic effect of a flocculating agent and a catalyst; (2) mixed salt separation and recycling: realizing stable separation of sodium chloride and sodium sulfate through the design of MCR-nanofiltration-reverse osmosis multi-membrane coupling synergistic gradient coupling and reflux nesting; and (3) stable control of evaporative crystallization of a complex system: a scale inhibitor, humic acid and a defoaming agent are used, and fractional crystallization and purification are realized through high-temperature firing. According to the method, recycling circulating water can be saved, a large amount of sodium chloride and sodium sulfate are recycled as byproducts, COD and ammonia nitrogen are reduced, the recycling rate of sodium sulfate and sodium chloride is larger than 85%, and the water recycling rate is larger than 95%.
Owner:山西焦化股份有限公司 +1

Insecticidal formulation, method for producing said formulation, and uses thereof

PCT designated stageWO2026036195A1BiocideAnimal repellantsHigh concentrationParasiticidal preparations
The present invention relates to a binary insecticidal formulation, the production method therefor and use thereof in the treatment of seeds of a plurality of crops and for controlling a range of pests. More specifically, said formulation is used for seed treatment, comprises a high concentration of active ingredients, is free of ionic agronomic excipients and antifreeze agents, and comprises a safe and effective concentration of colorant for marking said seeds. Furthermore, said formulation comprises few agronomic excipients, wherein said excipients, namely the antifoaming agent, dispersant, adhesive, and thickener, are present at concentrations that are significantly reduced compared to formulations of the prior art. In addition, nearly half of said formulation is composed of water, making it environmentally compatible. The production method for said formulation also influences the excellent physicochemical properties of the final product, mainly due to the nature of each of the steps involved, the order thereof, process variables, and other related aspects.
Owner:TECNOMYL BRASIL DISTRIBUIDORA DE PRODUTOS AGRICOLAS LTDA

High-durability quick-hardening concrete and preparation method thereof

PendingCN121609550ANano hybridFerrous sulphate
The invention discloses high-durability quick-hardening concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials: aluminoferrite cement, vitreous calcium aluminate clinker, a coagulant nucleation agent, a nano hybrid siliceous material, a calcium-magnesium composite expanding agent, a self-healing agent, a hydration heat regulating agent, a water reducing agent, an early strength agent, a defoaming agent, a thickening agent, a retarder, an air entraining agent and aggregate. The coagulating nucleating agent is prepared from semi-hydrated gypsum, ferrous sulfate and aluminum potassium sulfate; the nano hybrid siliceous material is prepared by reacting acidic silica sol with sodium methyl silicate at 40-60 DEG C for 1-3 hours. According to the high-durability quick-hardening concrete and the preparation method thereof, the iron aluminate cement, the vitreous calcium aluminate clinker, the coagulant nucleation agent, the nano hybrid siliceous material, the calcium-magnesium composite expanding agent, the self-healing agent and the hydration heat regulating agent are utilized to form a brand-new high-durability and high-adaptability quick-hardening system. The mechanical property, the volume stability and the durability are comprehensively superior to those of the traditional quick-hardening concrete.
Owner:WUHAN HAOSHENG TECHNOLOGY GROUP CO LTD +1