62results about How to "Improve corrosion inhibition" patented technology

The present invention relates to organic cooling liquid for engine, it is composed of ethylene glycol 1000 parts, sebacic acid 2-8 parts, terephthalic acid 2-5 parts, octytic acid 1-12 parts, methylbenezenetriazole 1-4 parts, p-tert-butylbenzoic acid 5-25 parts, succinic acid 1-4 parts, antifoaming agent 0.1-0.2 parts, the invented cooling liquid possesses the advantages of good metal corrosion resistance, good transportation stability, strong hard water resistance, small environmental pollution, no harmful component, small use level etc.

The invention discloses washing liquid used in the semiconductor industry to wash plasma etching residues. The washing liquid contains citric acid / citrate buffer solution, fluorides, macromoledular corrosion inhibitor, anti-freeze agent and solvent. The washing liquid can effectively wash the plasma etching residues during the process of manufacturing a semiconductor, have low etching velocity on nonmetals and metal substrates such as Si, SiO2, tetraethoxy silane silicon dioxides (PETEOS), low-medium materials, Ti, Al, Cu and so on, is safe and harmless to the environment and the human body, and has good application prospect in the microelectronic field such as washing of semiconductor wafers and so on.

Aqueous concentrates of non-toxic corrosion inhibitors, preferably storage-stable, useful in acidic cleaning solutions for cleaning the surfaces of metal that contacts food or potable water, the concentrates comprising at least one polymer, which may be protein-derived or synthetic; at least one iodine ion providing compound; an acidifier; and optionally, at least one anionic, nonionic or amphoteric surfactant; at least one coupling agent; and a pH adjuster; the concentrates being substantially free of nonylphenol derivatives and compounds containing elemental iodine and providing an improved acid inhibition and less foaming than similar compositions comprising nonylphenol derivatives and elemental iodine when mixed with aqueous acidic cleaners; acidic solutions prepared therefrom; and methods of their use.

The invention provides an abrasive for polishing cobalt-containing layers. The abrasive comprises a carboxylic acid derivative, a metal corrosion inhibitor and water, the carboxylic acid derivative consisting of at least one selected from a phthalic compound, an isophthalic compound, an alkyl dicarboxylic compound represented by the formula (I), and salts and anhydrides of the phthalic compound, the isophthalic compound and the alkyl dicarboxylic compound. The pH is below 4.0. Formula (I): HOOC-R-COOH.

The invention relates to a low-conductivity cooling liquid and a preparation method thereof, and belongs to the field of chemical engineering. The total mass of each component in a cooling liquid formula is 100%, and the low-conductivity cooling liquid is prepared from the components in percentage by mass: 30-80% of dihydric alcohol, 0.05-5.0% of organosilicon compound, 0.01-2.0% of nitrogen-containing compound, 0-1.0% of azole-based compound and the balance of deionized water. The organosilicon compound, the nitrogen-containing compound and the azole-based compound are uniformly mixed and then added into the dihydric alcohol for normal temperature stirring for more than 20min, and finally the deionized water is added for uniform mixing to obtain the low-conductivity cooling liquid. The low-conductivity cooling liquid has good effect of corrosion inhibition on a multi-metal system, has better storage and using stability, and can be used for cooling and heat exchanging of fuel cells, electric automobile motors and wind power generators.

The invention discloses an ionic liquid modified graphene composite anticorrosive wear-resistant coating and a preparation method and application thereof. The ionic liquid modified graphene compositeanticorrosive wear-resistant coating comprises an ionic liquid modified graphene, a curing agent, epoxy resin and a diluent are used as fillers, the ionic liquid modified graphene is prepared by modifying graphene with an ionic liquid, and the ionic liquid is prepared by reacting 1-ethylimidazole with 1, 8-dibromooctane. The anticorrosive wear-resistant coating prepared by the invention effectively reduces the agglomeration phenomenon of graphene, shows excellent corrosion resistance and wear resistance, is simple and efficient in preparation method, and can be widely applied to metal protective collars of marine equipment, ship equipment, nuclear power industry and the like.

The invention discloses environment-friendly water-based paint for a living container and a preparation method thereof, and relates to the technical field of water-based paint. The environment-friendly water-based paint is prepared from the following raw materials in parts by weight: 20 to 25 parts of waterborne alkyd resin, 12 to 15 parts of waterborne styrene-acrylic emulsion, 28 to 37 parts of deionized water, 2 to 2.5 parts of environment-friendly cosolvents, 1.8 to 2.5 parts of neutralizers, 0.2 to 0.3 part of antifoaming agents, 0.2 to 0.3 parts of flatting agents, 0.2 to 0.3 part of substrate wetting agents, 0.8 to 1.0 part of adhesion promoters, 0.5 to 1 part of coalescing agents, 1.4 to 1.7 parts of waterborne driers, 0.5 to 1.2 parts of flash-rust inhibitors, 0.5 to 1.2 parts of rheological agents, 0.18 to 0.2 part of anti-settling agents, 0.5 to 0.8 part of dispersing agents, 1.65 to 2.0 parts of phthalocyanine blue, 2.5 to 3.0 parts of rutile titanium dioxide, 6 to 8.7 parts of aluminum triphosphate and 4.5 to 5.5 parts of barium sulfate. The environment-friendly water-based paint has the advantages that the environment is protected; the impact resistant, water resistant, weather resistant and salt spray resistant effects are achieved; the indexes such as the adhesive force meet the national standard requirements.

An environment protection type composite water-treating agent is prepared from poly-aspartic acid, RE material ECH, molybdate, benzotriazazole and Zn salt. Its advantages are low corrosion, poison and nutrition, and high safety.

The invention provides a preparation method for vulcanized alkylphenol. The method disclosed by the invention comprises the following steps: (1) mixing alkylphenol and a vulcanizing agent with inorganic alkaline or an aqueous solution of the inorganic alkaline, and conducting vulcanization reaction; (2) adding low-molecular-weight alcohol aqueous solution into a reaction product obtained in the step (1), mixing and stirring, then adding a demulsifier, separating an oil phase, and collecting a product. The vulcanized alkylphenol prepared by using the preparation method disclosed by the invention is excellent in antioxidant activity, corrosion inhibition and high-temperature detergency and is a lubricating oil antioxidant with comprehensive performance.

The invention discloses a cleaning liquid combination used for removing plasma-etching residue in semiconductor industry. The cleaning liquid comprises amount of solvent used for effectively washing, buffer aqueous solution, fluoride, antifreeze agent, polymer inhibitor. The cleaning liquid combination of the invention can effectively clean plasma-etching residue in semiconductor industry without eroding SiO2, PETEOS, silicon, low medium material and some metals such as Ti, Al and Cu.

The invention discloses an aqueous silane treatment agent for improving metal surface protection performance, and relates to a silane treatment agent for the metal surface pretreatment. The aqueous silane treatment agent provided by the present invention comprises vinyltriacetoxysilane, bis-(trimethoxysilylpropyl)amine, lanthanum nitrate and deionized water. The aqueous silane treatment agent provided by the present invention has characteristics of high corrosion resistance, high storage stability, high adhesion, low cost, easy popularization and application, and the like. The aqueous silane treatment agent can be widely applicable for the metal surface pretreatment, and is the ideal treatment agent for improving the metal surface protection performance.

The invention discloses an aluminum dihydrogen phosphate and steel fiber reinforced refractory castable and a preparation method. The aluminum dihydrogen phosphate and steel fiber reinforced refractory castable comprises a main refractory material, an additive and a binding agent; the raw material of the binding agent comprises an aluminum dihydrogen phosphate aqueous solution in mass concentration of 45-50%; thiourea and potassium iodide are dissolved in the aluminum dihydrogen phosphate aqueous solution in mass concentration of 45-50%; the weight of the aluminum dihydrogen phosphate aqueoussolution in mass concentration of 45-50% is 8-12% of total weight of the main refractory material. The aluminum dihydrogen phosphate and steel fiber reinforced refractory castable is adopted for preparing the products, such as a molten iron slagging plate with a carbon steel metal core wrapped with a refractory material; the generation of reaction gas of aluminum dihydrogen phosphate is avoided during the processes of castable preparation and casting molding; water resistance and strength under normal temperature of the casting body are promoted; excellent effects of greatly reducing the timeof casting molding and baking preparation, reducing baking energy consumption and prolonging service life are achieved.

The invention discloses anhydrous refrigerating fluid for an internal combustion engine, and relates to the technical field of refrigerating fluid. The anhydrous refrigerating fluid is prepared from the following raw materials in percentage by mass: 85.53 to 95.0 percent of basic liquid, 1.2 to 3.0 percent of nano-particles, 1 to 3 percent of alkaline supplement agent, 0.75 to 1.47 percent of corrosion inhibitor, 0.5 to 2.0 percent of anti-foaming agent, and 2 to 5 percent of additive. A pH value is stabilized at 7.5 to 8.0; the basic liquid is prepared from mixed alcohol of ethylene glycol and propylene glycol; a nano-particle mixture is prepared from copper oxide nano-particles, silicon dioxide nano-particles and aluminum oxide nano-particles; the corrosion inhibitor is prepared from a mixture of sodium benzoate, heptanoic acid, toluene triazole, triazole, isooctanoic acid and diethylene glycol monomethyl ether. The anhydrous refrigerating fluid disclosed by the invention has high performance on comprehensive protection of multiple metals of an automobile cooling system; the complex type anhydrous refrigerating fluid has the advantages of good corrosion inhibitive ability, longlasting property, storage stability, high resistance to hard water, environmental friendliness and safety.

The invention relates to a special bactericide corrosion inhibitor for an oil field. The special bactericide corrosion inhibitor comprises the following components in percentage by weight: 10-20 percent of zinc salt, 60-75 percent of quaternary ammonium salt, 5-10 percent of sulfamic acid and 5 percent of alcohols, wherein the summation of the percentages of the zinc salt, the quaternary ammonium salt, the sulfamic acid and the alcohols is between 90 and 95 percent, and the balance is replenished by adding water to 100 percent. According to the special bactericide corrosion inhibitor disclosed by the invention, the zinc salt and the quaternary ammonium salt are used as main agents, and the problem that the zinc salt is compatible with the quaternary ammonium salt is solved; proved by the experimental detection, the formula is good in compatibility, products are stable, the inhibiting effect for sulfate reducing bacteria is good, and a good corrosion inhibiting effect for oil-field water by taking sulfide and carbon diode as main corrosion components is realized; the special bactericide corrosion inhibitor is special for corrosion and bactericide of reinjection water, mixed infusion water and oil well produced water for the oil field.

The invention provides a liquid composition containing (a) an acidic oxidant, (b) nitric acid or a salt thereof, and (c) at least one carboxylic acid selected from the group consisting of monocarboxylic acids, dicarboxylic acids, and tricarboxylic acids, or a salt thereof. The liquid composition can be used to disinfect or sterilize a subject that includes a portion made of an aluminum-based metal.

The invention discloses a novel water treatment agent. The water treatment agent comprises the following components by mass percent: 20 to 25% of polyaspartic acid, 15 to 20% of 2-phosphonic-1, 2, 4 tri-carboxyl butane, 7 to 9% of heptahydrate, 1 to 2% of benzotriazole, and the balance of water. The novel water treatment agent is formed by the compounding of polyaspartic acid, 2-phosphonic-1, 2, 4 tri-carboxyl butane, heptahydrate, benzotriazole and water in a specific proportion; all the materials are synergistically interacted with each other, so that the corrosion inhibition and scale inhibition capability of the water treatment agent can be improved obviously; the water treatment agent is suitable for a cooling water system with high alkalinity, high hardness and high pH (Potential of Hydrogen) and can realize the operation in high cycles of concentration; in addition, non-phosphorus or low-phosphorous raw materials are adopted, which are harmfulless and easy for biodegradation, so that the green and environmental protection can be realized. The invention also discloses a preparation method of the water treatment agent; the water treatment agent prepared by the method can be stored stably for a long term.

The invention relates to an alcohol ether alternative fuel metal component corrosion inhibitor for a vehicle and a method for preparing the alcohol ether alternative fuel metal component corrosion inhibitor. The alcohol ether alternative fuel metal component corrosion inhibitor is obtained by the basic raw materials of aromatic carboxylic acid, unsaturated fattyacid, organic nitrogen-containing compounds, active anions and the like through synergism effect generated through compounding. Alcohol ether alternative fuel prepared by the adoption of the corrosion inhibitor has a good corrosion inhibiting effect, overcomes the defect that in the prior art, the protection effect is single, and the corrosion inhibition efficiency of carbon steel, copper and copper alloy is still higher than 95 % especially in the corrosion environment of formic acid generated in the alcohol ether fuel combustion simulation process. Compared with the prior art, the alcohol ether alternative fuel metal component corrosion inhibitor for the vehicle has the advantages of being low in consumption, low in manufacturing cost, good in corrosion resistant effect, simple in preparation technology, environmentally friendly, green, clean and the like, and can effectively prevent the engine metal component from being corroded by the alcohol ether alternative fuel.

The invention discloses a method for preparing antifouling and anticorrosion coating with added hydrophobic modified cuprous oxide for fishing nets. The method includes adding graphene dispersion liquid and carbon nano-tubes oxidized and modified by mixed acid into waterborne epoxy resin and uniformly stirring the graphene dispersion liquid, the carbon nano-tubes and the waterborne epoxy resin; adding curing agents into the waterborne epoxy resin, stirring the curing agents until the resin and the curing agents are completely mixed with one another to obtain mixtures; adding the mixtures, chlorosulfonated polyethylene resin, rosin, plasticizers, irradiation-modified aluminium triphosphate and the modified cuprous oxide into iron buckets with sealing covers; sealing the iron buckets, and then carrying out quick dispersion and oscillation; filtering and separately packaging the coating. The method has the advantages that irradiation modification is carried out on aluminium triphosphate by the aid of gamma rays, accordingly, the corrosion inhibition performance of the aluminium triphosphate modified by high irradiation dose can be obviously improved, the aluminium triphosphate with the high irradiation dose is used as a filler for preparing the antifouling and anticorrosion coating, and the antifouling and anticorrosion coating is excellent in long-term anticorrosion property; graphene is excellent in waterproof performance, accordingly, the impedance module value of the epoxy resin can be increased, and the corrosion resistance of coatings can be improved.

The invention relates to a method for optimizing the corrosion inhibition efficiency of corrosion inhibitors in a carrier. The method comprises the following steps of: firstly, adding corrosion inhibitors with a synergistic effect into a corrosive solution according to a plurality of different proportions, and selecting an optimal compounding proportion of the corrosion inhibitors through morphology observation and an electrochemical measurement technology; then, through regulation and control of a preparation process, loading the two corrosion inhibitors into the same micro-nano carrier, and ensuring that the proportion of the corrosion inhibitors in the composite carrier is equal to the optimal proportion; or adding the corrosion inhibitors into different micro-nano carriers respectively, and ensuring that the proportion of the corrosion inhibitors in the two carriers is equal to the optimal proportion. The composite carrier or two single carriers loaded with different corrosion inhibitors are added into a corrosive solution or a coating, so that the whole system has an optimal corrosion inhibition effect. The optimal proportion of the corrosion inhibitors is selected in advance, and then the corrosion inhibitors are added into the micro-nano carrier. The method is helpful for improving the corrosion inhibition performance of the carrier, and has wide application prospects in the fields of corrosion inhibitor carrier preparation and self-repairing anti-corrosive coating design.

The invention discloses a phosphorus-free cleaning agent. The phosphorus-free cleaning agent comprises the following components in parts by weight: 12-18 parts of sodium citrate; 10-15 parts of a surfactant; 4-7 parts of a chelating agent; 10-15 parts of 2,4-di-(p-aminobenzoic acid)-6-diethylamino-1,3,5-triazine, 1-3 parts of a corrosion inhibitor; 5-8 parts of a penetrating agent; 2-4 parts of propylene glycol monomethyl ether; 0.8-1.4 parts of a defoaming agent; and 2-20 parts of water. The phosphorus-free cleaning agent disclosed by the invention has the advantages of excellent cleaning capacity, a long antirust period, good stability, long service life, no volatilization and no irritation.

The invention discloses an engine coolant for heavy duty vehicles, which is prepared from the following raw materials in parts by weight: 30-60 parts of ethylene glycol, 2-6 parts of sodium sebacate, 5-9 parts of triethanolamine oleate soap, 3-7 parts of sodium silicate, 2-6 parts of polyacrylic acid, 6-12 parts of sodium benzoate, 2-10 parts of tributyl amine octoate, 6-10 parts of sodium hydroxide, 3-9 parts of benzene dicarboxylic acid, 4-8 parts of organic corrosion inhibitor, 3-7 parts of scale inhibitor, 5-9 parts of defoaming agent, 7-11 parts of salicylic acid and 20-50 parts of deionized water. The engine coolant for heavy duty vehicles has the advantages of favorable corrosion-resistant effect and excellent hard water resistance, can effectively prolong the service life of the antifreezing fluid, and has greatly higher storage and use stability.

The invention belongs to the field of metal corrosion preventing, and particularly relates to a high-viscosity anti-corrosive belt suitable for the marine atmospheric environment and a preparation method and application thereof. The anti-corrosive belt is non-woven fabric on which high-temperature anti-corrosive paste impregnation is conducted. The anti-corrosive paste comprises, by weight, 28-30%of high-viscosity modified polymerized linseed oil, 2-3% of a corrosion inhibitor, 5-8% of an insulation agent and 59-65% of fire-retardant inorganic filler. The anti-corrosive belt has the advantages of excellent bonding performance, infiltration performance and anti-corrosive performance and is applied to the marine atmospheric environment with high humidity and high salinity.

The present invention relates to organic cooling liquid for engine, it is composed of ethylene glycol 1000 parts, sebacic acid 2-8 parts, terephthalic acid 2-5 parts, octytic acid 1-12 parts, methylbenezenetriazole 1-4 parts, p-tert-butylbenzoic acid 5-25 parts, succinic acid 1-4 parts, antifoaming agent 0.1-0.2 parts, the invented cooling liquid possesses the advantages of good metal corrosion resistance, good transportation stability, strong hard water resistance, small environmental pollution, no harmful component, small use level etc.

The invention provides a liquid composition containing (a) an acidic oxidant, (b) nitric acid or a salt thereof, and (c) at least one carboxylic acid selected from the group consisting of monocarboxylic acids, dicarboxylic acids, and tricarboxylic acids, or a salt thereof. The liquid composition can be used to disinfect or sterilize a subject that includes a portion made of an aluminum-based metal.

The invention provides an abrasive for polishing cobalt-containing layers. The abrasive comprises a carboxylic acid derivative, a metal corrosion inhibitor and water, the carboxylic acid derivative consisting of at least one selected from a phthalic compound, an isophthalic compound, an alkyl dicarboxylic compound represented by the formula (I), and salts and anhydrides of the phthalic compound, the isophthalic compound and the alkyl dicarboxylic compound. The pH is below 4.0. Formula (I): HOOC-R-COOH.

The invention relates to a totally-synthetic high-speed copper drawing fluid, which comprises, by mass percentage, 5-10% of triethanolamine, 5-9% of amide caproic acid triethanolamine salt, 8-15% of polyethylene glycol, 0.5-3.0% of special amine, 0.5-2.0% of disodium EDTA, 0.1-0.5% of T706, 3.0-6.0% of diglycol, 3.0-6.0% of polyether 1740, 1.5-4.0% of sebacic acid, 6.0-12.0% of diethanolamine, 0.5-1.5% of an MBM bactericide, and 0.03-0.15% of an antifoaming agent, with the balance being water. The fluid gives off faint smell, and is excellent in lubricity, cleaning ability and copper corrosioninhibition performance. During high-speed drawing of copper wires, the liquid protects a die and cone pulley from being attached with copper powder and copper sludge, so that the service life of thedie and cone pulley is greatly prolonged.

The invention relates to a mining heavy-duty engine coolant which is characterized by comprising the raw materials in percentage by weight as follows: 0.1%-0.2% of TTA, 1.2%-2.6% of sodium hydrogen sebacate, 0.8%-1.4% of triethanolamine oleate soap, 0.6%-1.2% of sodium benzoate, 0.1%-0.2% of tributylamine caprylate, 1.2%-2.0% of a maleic acid-methyl acrylate copolymer, 0.08%-0.2% of sodium hydroxide, 0.01%-0.04% of an anti-foaming agent, 0.65%-1.6% of a coloring agent, 40%-70% of ethylene glycol, and the balance of deionized water. The mining heavy-duty engine coolant guarantees the comprehensive protective capacity of the coolant for 6 metals including soldering tin, brass, red copper, steel, cast iron and cast aluminum in cooling systems of a mine heavy-duty dump truck diesel engine and a mine large-scale construction machinery diesel engine, and particularly improves the corrosion inhibition of the metal copper, so that the performance of a coolant product can achieve long-acting stability, and simultaneously, pollution to human bodies and the environment is reduced.

The invention relates to the field of oil solvents, in particular to novel anti-rust oil and a preparation method of the novel anti-rust oil. In allusion to the problems that existing anti-rust oil is poor in anti-rust performance and film-forming stability during use, poor in corrosion inhibition, high in viscosity and poor in film-forming quality, the invention proposes the following scheme: the novel anti-rust oil comprises the following raw materials in parts by weight: 70-85 parts of base oil, 8-14 parts of a composite corrosion inhibitor, 5-7 parts of an alkaline solution, 2-5 parts of paraffin, 20-35 parts of a diluent, 20-35 parts of butyl cellulose, 1-3 parts of a film-forming agent and 1-2 parts of an antioxidant. The alkaline solution is doped to improve the anti-rust performance; the composite corrosion inhibitor is doped to improve the corrosion inhibition strength so as to enhance the anti-rust effect; the paraffin is doped to enhance the film-forming stability when the anti-rust oil is used; and by doping the diluent, the anti-rust oil has the characteristic of low viscosity and is easy to coat, the consumption of the anti-rust oil is reduced, and by cooperatively doping the butyl cellulose, the anti-rust oil is good in coverage and uniform in film formation.

The invention relates to a non-aqueous coolant composition for an engine, which comprises a propylene glycol basic solution and a composite corrosion inhibitor, the composite corrosion inhibitor comprises acylates of tripolycyanamide and poly fatty acid and water soluble salt, hydroxy aromatic acid and its water soluble salt, and also comprises other types of corrosion inhibitors, such as fatty acid and its water soluble salt, molybdate, silicate and a silicate stabilizer. The composition takes propylene glycol as the basic solution, the toxicity is low, the toxic and harmful addictives on human body and environment such as nitrite, nitrate, alcohol amine, phosphate and borate are not contained, the non-aqueous coolant composition is an environment-friendly product, the high temperature corrosion resistance performance is excellent, the low temperature cooling performance and high temperature boiling resistance performance are excellent, and the non-aqueous coolant composition is suitable for the engines with large power, heavy loading and high temperature working environment.

The invention relates to the preparation technique of water-based anti-corrosion additives, and aims to provide a preparation method for a nano anti-corrosion additive for water-based anti-corrosion paint for ships. The preparation method comprises the following steps: mixing SiCl4 and methyl triethoxy ethyl silicate to form a siloxane mixture, dropwise adding the siloxane mixture into a hydrochloric acid water solution, and conducting reduced pressure distillation to obtain concentrated water-based nano silicon dioxide sol; then adding CeNO3, uniformly mixing to obtain the nano anti-corrosion additive. SiCl4 is used as the raw material to prepare the nano silicon dioxide sol; the hydrolytic polymerization speed is high, and silicon dioxide nanophase can be quickly formed; in addition, through the addition of alkoxy silane and methyl trimethoxy silane which contain organic groups and are subjected to hydrolytic polymerization together, the condition that produced high-activity nano silicon dioxide conducts polymerization reaction to form gel is prevented, and the stability of sol is improved. Moreover, through the introduction of nanophase into a corrosion inhibitor, the degree of dispersion of the corrosion inhibitor is improved, and the corrosion inhibition performance of the anti-corrosion additive is improved.