35results about How to "Excellent metal corrosion resistance" patented technology

The invention discloses a preparation method of graphene oxide/acrylate-epoxy resin composite anticorrosive paint. The preparation method comprises the following steps: preparing graphene oxide, and preparing an acrylic acid modified epoxy resin intermediate from bisphenol A epoxy resin and acrylic acid; then, respectively preparing a nuclear phase monomer pre-emulsion and a shell phase monomer pre-emulsion, and carrying out core-shell reaction polymerization on the nuclear phase monomer pre-emulsion and the shell phase monomer pre-emulsion through an initiator to obtain an acrylate-epoxy resin core-shell emulsion; and finally, mixing the acrylate-epoxy resin core-shell emulsion with graphene oxide to obtain the anticorrosive paint. According to the invention, an epoxy group on the surfaceof the graphene oxide is used as a reaction active point, so the corrosion resistance of the graphene oxide/acrylate-epoxy resin composite anticorrosive paint is greatly improved. Along with the increase of the content of the graphene oxide, the corrosion potential of the paint is increased, and corrosion current density is reduced, so the paint presents excellent metal corrosion resistance.

An EPDM foam contains an ethylene-propylene-diene rubber, in which the EPDM foam has water stopping performance lasting for 1 hour or more according to 50% waterstop test and metal corrosion is not observed according to metal corrosion test.

The invention discloses an environment-friendly, thermal-insulating and corrosion-resistant coating for metal. The environment-friendly, thermal-insulating and corrosion-resistant coating is characterized by being prepared from raw materials in parts by weight as follows: 60-90 parts of acrylic acid modified epoxy resin, 3-8 parts of modified polyuria, 20-35 parts of a composite thermal insulation agent, 10-20 parts of nano hydroxyapatite powder, 3-6 parts of a wet dispersant, 8-15 parts of gas-phase aluminum oxide, 2-10 parts of polyacrylate type thickeners, 1-5 parts of lower-molecular polyethylene wax, 1-2 parts of zinc dihydrogen phosphate with the concentration being 1.5%, 2-8 parts of propylene glycol, 0.5-1 part of mercaptobenzothiazole, 3-20 parts of other aids and 20-30 parts of water. The invention also discloses a preparation method of the environment-friendly, thermal-insulating and corrosion-resistant coating for the metal. The coating prepared according to the raw material formula with the preparation method has good metal corrosion resistance, environmental protection performance and thermal insulation performance.

A fluororubber composition comprising 100 parts by weight of a peroxide-crosslinkable tetrafluoroethylene-vinylidene fluoride-hexafluoropropene ternary copolymer rubber having a fluorine content of 64 wt. % or more, (A) 5 to 90 parts by weight of carbon black having a specific surface area of 5 to 20 m²/g, (B) 5 to 40 parts by weight of a fine bituminous powder, (C) at least one of 1 to 20 parts by weight of hydrophilicity-imparted talc and/or 1 to 30 parts by weight of hydrophilicity-imparted clay, and (D) 0.5 to 6 parts by weight of an organic peroxide; the fluororubber composition being used as a molding material for fuel oil sealing materials to be in contact with fuel oil. The fluororubber composition provides a sealing materials having excellent metal corrosion resistance, without compounding an acid acceptor comprising a metal oxide.

There is provided a pressure-sensitive adhesive (PSA) sheet with the property of corroding a metal not in contact therewith suppressed. This PSA sheet is provided with a PSA layer formed from a water-dispersed PSA composition. The PSA composition contains a water-dispersed acrylic polymer synthesized using a sulfur-containing chain transfer agent. Moreover, in a gas generation test whereby the PSA sheet is heated at 85° C. for one hour, the emission of sulfur-containing gas is 0.043 μg or less per 1 cm² surface area of the sheet, when converted to SO₄²⁻.

The invention discloses a low-carbon environment-friendly anticorrosive paint which is prepared from the following raw materials in parts by weight: 25-55 parts of a composite powder, 15-30 parts of organic silicon modified polypropylene resin, 0.5-2 parts of an inorganic filler, 1-3 parts of an organic solvent, 35-45 parts of deionized water, 10-15 parts of modified attapulgite and 0.5-1 part ofa composite antibacterial agent. The invention also discloses a preparation method of the low-carbon environment-friendly anticorrosive paint. Inorganic matters such as graphene oxide, vanadium pentoxide xerogel powder and montmorillonite are used as base materials, the base materials are mixed with organic silicon modified polypropylene resin, and the other auxiliary agents are added to prepare afinished product. According to the present invention, the graphene is subjected to covalent modification, and phytic acid is grafted to the graphene, so that the corrosion ions can be effectively prevented from entering the metal surface, and slowing down of metal corrosion is realized; by selecting the raw materials, the introduction of organic matters is greatly reduced, and the low-carbon environment-friendly anticorrosive paint is environment-friendly and has excellent metal anticorrosive performance.

The invention discloses a fireproof coating for steel structures and belongs to the technical field of chemical industry. The fireproof coating consists of the following components in parts by weight: 15-25 parts of epoxy resin, 7-13 parts of acrylic resin, 3.7-4.5 parts of No. 200 gasoline, 4-6 parts of dimethyl benzene, 5-7 parts of butyl acetate, 0.5-0.9 part of fumed silica, 0.1-0.3 part of a dispersant, 6-8 parts of pentaerythritol, 5-10 parts of acetone, 16-18 parts of ammonium polyphosphate, 5-8 parts of melamine, 10-14 parts of antimony trioxide and 2-5 parts of titanium dioxide powder. The fireproof coating disclosed by the invention has good mechanical and physicochemical performance and can form a good foam heat insulating layer in a fire, and the foam layer does not drop even at a high temperature; the fireproof coating disclosed by the invention is good in metal corrosion resistance and good in appearance decoration.

The invention discloses an environment-friendly engine coolant which is composed of following raw materials, by weight: 80-85 parts of ethylene glycol, 15-20 parts of propylene glycol, 2-5 parts of magnesium silicate, 5-10 parts of sodium silicate, 1-3 parts of potassium sorbate, 0.01-0.05 parts of sodium benzoate, 0.02-0.04 parts of decanedioic acid, 0.1-0.3 parts of benzotriazole, 0.05-0.08 parts of mercaptobenzothiazole, 0.1-0.5 parts of sodium hydroxide, 0.5-1 part of hydrolyzed polymaleic anhydride, 2-5 parts of carboxymethylcellulose, and 15-20 parts of deionized water. The engine coolant is low in freezing point and high in boiling point, is excellent in metal anti-corrosion property, anti-cavitation property and anti-scaling property, is safe and environment-friendly and is environment-friendly.

The invention provides an engine carbon deposit cleaning composition, and the composition comprises the following components in percentage by weight: (a) 3-10% of oleylamine; (b) 0-60 wt% of a fatty alcohol polyoxyethylene ether modified organosilicon surfactant; (c) 30-83% by weight of pyrrolidone; (d) 5-67 wt% of ethylene glycol butyl ether; (e) 0-20% by weight of water. The engine carbon deposit cleaning composition has good carbon deposit cleaning capacity and good metal corrosion resistance.

The invention provides a metal material preservative. The technical scheme adopted by the invention is that the metal material preservative comprises water and a benzoic acid component and is characterized by also comprising the following components in parts by mass: 2-8 parts of zeolite powder, 2-8 parts of zinc oxide, 1-8 parts of butadiene and 0.8-1.8 parts of cyproconazole. Compared with the prior art, the metal material preservative provided by the invention has the beneficial effects that by adding the zeolite powder, zinc oxide, butadiene and cyproconazole, the preservative has perfect metal corrosion resistance.

The invention discloses a metal coating and a production method thereof. The formula of the metal coating comprises, by mass, 55-75 parts of acrylic acid modified epoxy resin, 1-2 parts of a polyacrylate thickener, 2-6 parts of fumed alumina, 6-10 parts of modified polyurea, 4-6 parts of a composite heat insulation agent, 2-4 parts of caprin, 1-3 parts of low molecular polyethylene wax, 12-14 parts of hydroxyapatite nano-powder, 5-7 parts of boron carbide, 4-6 parts of mercaptobenzothiazole, 2-6 parts of zinc dihydrogen phosphate, 1-2 parts of an assistant and 1-3 parts of a wetting dispersant. The coating produced through using the formula and the production method has good metal corrosion resistance, good environmentally-friendly property and good heat insulation property.

The invention discloses a composite additive composition for refrigerating machine oil for a screw-type ammonia refrigerating compressor. The composite additive composition is prepared from, by weight, 5%-70% of aromatic diluent, 0.1%-20% of antioxidant, 0.1%-10% of extrcme pressure anti-wear additive, 0.01%-5% of metal deactivator and 0.001%-0.2% of antifoaming agent, wherein the kinematic viscosity of the aromatic diluent at the temperature of 40 DEG C is 5 mm<2>/s to 100 mm<2>/s, and %CA is 4% to 60%. The refrigerating machine oil obtained after the composite additive composition is added for the screw-type ammonia refrigerating compressor has the excellent low temperature fluidity, oxidation stability, extreme pressure anti-wear property, metal corrosion resistance and foaming resistance, and can more efficiently and circularly work in the ammonia refrigerating compressor for a long life. In addition, through the composite additive composition, the refrigerating machine oil is moreeasy and efficient in production operation and lower in energy consumption.

The invention discloses a cooling liquid for a power battery of a new energy automobile. The cooling liquid comprises the following substances in parts by mass: 50-60 parts of ethylene glycol; 40 to 50 parts of EDI purified water; 1 to 2 parts of ethanolamine phosphate; 0.22 part to 0.45 part of sodium borate; 0.38 to 0.4 part of tris (hydroxymethyl) aminomethane; the invention also discloses a preparation method of the cooling liquid. The metal corrosion inhibitor has the advantages of wide temperature range and slow metal corrosion.

The invention belongs to the technical field of refrigerator oil, and provides a cold work refrigerator oil additive, which comprises the following raw materials in parts by weight: 23-40 parts of anaromatic hydrocarbon diluent, 10-15 parts of an antioxidant, 5-8 parts of an extreme pressure anti-wear agent, 1-3 parts of a metal deactivator and 0.12-0.16 part of a defoaming agent; wherein the aromatic hydrocarbon diluent is heavy alkyl benzene, the antioxidant is octyl/butyl diphenylamine, the extreme pressure anti-wear agent is triphenyl thiophosphate, the metal deactivator is benzotriazole,and the defoaming agent is polyalkylene glycol. The preparation method is simple, the proportion is reasonable, and after the additive is added into the refrigerator oil, the refrigerator oil can have the refrigerant compatibility, lubricity and low-temperature fluidity.

The invention relates to a compound preservative as well as a preparation method and application thereof. The compound preservative comprises an alcohol amine compound, a phenyl azole/thiazole compound and alkanolamide phosphate. Alcohol amine compounds, phenyl azole/thiazole compounds and alkanolamide phosphate in the compound preservative are matched with one another and have a synergistic effect on corrosion resistance and corrosion prevention of metal materials, and the hydraulic fluid prepared from the compound preservative is high in flame resistance and environment-friendly, has good metal corrosion resistance and can be applied to the field of hydraulic engineering. Particularly, the coating has good aluminum corrosion resistance, and has important application value in the fields of door closers and the like.