147 results about "Volatile corrosion inhibitor" patented technology

The invention relates to a scale and corrosion inhibitor, comprising organic phosphonate, an inorganic scale and corrosion inhibition component, a carboxylic acid containing copolymer, zinc salt, a heterocyclic compound and a fluorescence tracing component. The scale and corrosion inhibitor is easy to compound, has good stability, and has good scale and corrosion inhibition performances for reusing tail water of a sewage plant into a circulating cooling system under a low addition amount; the scale and corrosion inhibitor can be directly added into a reclaimed water reusing pipeline, without needing to supplement calcium and alkali into the tail water in advance and regulating a pH value, and has a good treating effect; the scale and corrosion inhibitor does not contain a toxic compound and inorganic phosphatic, contains little phosphor, can reduce eutrophication pollution of a water body, and is in favor of environment protection.

A package for enclosing volatile corrosion inhibiting materials includes a first enclosure barrier being fabricated from one or more gas-impermeable materials and defining a first enclosed space. The package further includes a substrate having one or more volatile corrosion inhibitor materials disposed thereon, with the substrate being disposed within the first enclosed space. In some embodiments, a second enclosure barrier being fabricated from a gas-permeable, solid particle-impermeable material is disposed in the first enclosed space, and defines a second enclosed space inside of the first enclosed space. In such embodiments, the substrate is preferably disposed within the second enclosed space.

The invention belongs to the field of metal material corrosion inhibitors, and discloses a copper corrosion inhibitor based on metal organic frame material MOFs and a preparation method thereof. The copper corrosion inhibitor is prepared from the components in part by weight: 20-40 parts of aminobenzimidazole / Zn<2+>MOFs, 30-50 parts of small molecule alcohol with a molecular weight not exceeding 60, and 10-40 parts of strong polarity organic solvent, polarity of the strong polarity organic solvent is not weaker than hexamethylphosphamide, wherein the aminobenzimidazole / Zn<2+>MOFs have a structural formula shown in the following equation (I). According to the copper corrosion inhibitor based on the metal organic frame material MOFs and the preparation method thereof, key main materials of the copper corrosion inhibitor are improved, the aminobenzimidazole / Zn<2+>MOFs are used as the main materials, the characteristics of strong hydrophobicity of an adsorption group and structural stability of the aminobenzimidazole / Zn<2+>MOFs are used, and the good corrosion inhibition effect on a copper elementary substance or copper alloy materials is realized.

The invention provides a compound antirust packaging material and a manufacturing method thereof, belonging to the technical field of packaging materials. The compound antirust packaging material is formed by compounding three layers of structures, namely an inner layer of wood pulp spunlace non-woven fabric with functions of condensed water prevention and buffering, a middle hot melt adhesive layer providing gas phase antirust technology and having an adhering function, and an outer layer of high polymer thermal contraction thin film with functions of thermal contraction and aging prevention. When the compound antirust packaging material is manufactured, a thermal contraction thin film and a spunlace non-woven fabric are compounded together by solvent-free hot melt adhesive in an adhering manner. By utilizing the non-corrosiveness non-woven fabric as a base material, the compound antirust packaging material has functions of condensed water prevention and buffering; and by virtue of a thermal contraction process after a packaging process, a package material and a packaged object can be combined to form a whole effectively, and the outer thermal contraction layer and the middle hot melt adhesive layer can release a large amount of VCI (volatile corrosion inhibitor), and air pressure coated on the inner layer is increased at the same time, and thereby a better antirust effect is achieved.

A volatile corrosion inhibitor to be kneaded into a resin of the present invention comprises a nitrous acid metal salt, a benzoic acid metal salt, a saturated polycarboxylic acid or a metal salt thereof, and an anticorrosive component for nonferrous metals. The volatile corrosion inhibitor to be kneaded into a resin does not cause melting, gasification, decomposition, vaporization even when exposed to a high temperature condition for molding a thermoplastic resins into an article in a form of films, sheets or fibers. Further, the volatile corrosion inhibitor is free of generation of offensive odor or dust caused by sublimation. As the result, working environment does not deteriorate, and superior anticorrosive ability with respect to nonferrous metal materials such as copper as well as to iron based metal materials is exhibited. In addition, the present invention relates also to a volatile anticorrosive molding material obtained by kneading the volatile corrosion inhibitor into a resin.

The invention discloses application of 1-myristyl-3-methylimidazolium chloride ionic liquid serving as a steel corrosion inhibitor. The method of the application comprises the step of: immersing steel in acid liquor containing the corrosion inhibitor of the 1-myristyl-3-methylimidazolium chloride ionic liquid to clean the steel. The invention has the advantages that the ionic liquid is used as the corrosion inhibitor and is extremely easy to dissolve in common solutions in production, such as water and the like, which is beneficial to the penetration in the use of the corrosion inhibitor; compared with common inorganic corrosion inhibitors, the corrosion inhibitor of the invention does not have toxic action on the environment and organisms and makes up the defect of big toxic and side effects on the traditional corrosion inhibitors. The corrosion inhibitor can effectively restrain the corrosion reaction of steel materials in acid media and has good corrosion inhibition efficiency.

Provided is a corrosion resistant tube for a secondary battery including a volatile corrosion inhibitor (VCI) and a base resin, and a secondary battery including the same. The corrosion resistant tube of the present invention prevents the occurrence of rust or the occurrence of corrosion in a battery cell, and therefore, is capable of enhancing stability of the battery.

The invention discloses a high-strength oxidation-resisting anti-rust film which is prepared through the following steps: completing the preparation of an inner-layer material, a middle-layer material and an outer-layer material in an independent dispensing procedure; and then forming a three-layer compound film by extruding the inner-layer material, the middle-layer material and the outer-layer material in a multi-layer coextrusion mode by using an extrusion machine, wherein the inner-layer material contains a volatile corrosion inhibitor VCI (accounting for about 5wt% of the inner-layer material), through uniformly mixing the volatile corrosion inhibitor with a polyethylene PE master batch, an inner VCI anti-rust layer is formed; the middle-layer material contains 4,4'-Isopropylidenediphenol C12-15 alcohol phosphite (accounting for 3wt% of the middle-layer material), through uniformly mixing the 4,4'-Isopropylidenediphenol C12-15 alcohol phosphite with a polyethylene PE master batch, a middle bridging layer is formed; and the outer-layer material contains a polypropylene PP (accounting for 13wt% of the outer-layer material) and a metalized polypropylene MPP (accounting for 30wt% of the outer-layer material), through uniformly mixing the PP and the MPP with a polyethylene PE batch, an outer isolation layer is formed. The film disclosed by the invention has the economic effect of low manufacturing cost, and can be applied to metal product packaging; and meanwhile, the film also has the effects of weather fastness, tear resistance, antioxidation, waterproofing moisture-proofing and rust protection.

An environmental-friendly volatile corrosion inhibitor for carbon steel comprises sodium silicate with the mass-volume concentration of 0.8 g / L-1.2 g / L, alanine with the mass-volume concentration of 1.8 g / L-2.3 g / L, sodium benzoate with the mass-volume concentration of 6.8 g / L-8.3 g / L, and ammonium benzoate with the mass-volume concentration of 3.8 g / L-4.5 g / L, dissolved in distilled water. A preparation method of the environmental-friendly volatile corrosion inhibitor comprises the following steps: respectively weighing the sodium silicate, alanine, sodium benzoate and ammonium benzoate according to the mass-volume concentrations; respectively dissolving in distilled water with the volumes of 1 / 4 of those of the solutes, and uniformly stirring; after the four solutions are stilled, mixing and uniformly stirring. The environmental-friendly volatile corrosion inhibitor is formed by compounding the sodium silicate, alanine, sodium benzoate and ammonium benzoate, is environmental-friendly and efficient, has little pollution to the environment, has a good synergistic effect, and solves the problems that the conventional volatile corrosion inhibitor is poor in corrosion-inhibition performance and generates more pollution, adopts the simple preparation method, is convenient to use, and can prolong the service life of the carbon steel.

A cleaning device for preserving a barrel of a firearm includes a central member defining a core and having a longitudinal length, a leading end and a trailing end. A tubular woven sheath surrounding the central member and has a lead end and a trailing end. A radial protrusion formed of a polymer is disposed about the central member between the central member and the sheath. A volatile corrosion inhibiter (VCI) is disposed on or in the cleaning device and configured to off-gas to cause a substantial part of an interior of the barrel to become lined with a protective coating to resist corrosion. The cleaning device is configured to be stored within the barrel of the firearm. A method for storing a cleaning device within a barrel of a firearm for preserving a barrel of a firearm is also described.

A volatile corrosion inhibitor to be kneaded into a resin of the present invention comprises a nitrous acid metal salt, a benzoic acid metal salt, a saturated polycarboxylic acid or a metal salt thereof, and an anticorrosive component for nonferrous metals. The volatile corrosion inhibitor to be kneaded into a resin does not cause melting, gasification, decomposition, vaporization even when exposed to a high temperature condition for molding a thermoplastic resins into an article in a form of films, sheets or fibers. Further, the volatile corrosion inhibitor is free of generation of offensive odor or dust caused by sublimation. As the result, working environment does not deteriorate, and superior anticorrosive ability with respect to nonferrous metal materials such as copper as well as to iron based metal materials is exhibited. In addition, the present invention relates also to a volatile anticorrosive molding material obtained by kneading the volatile corrosion inhibitor into a resin.