68results about How to "Good anti-corrosion function" patented technology

The invention relates to a compound-type prestressed anchor cable structure. The compound-type prestressed anchor cable structure comprises a prefabricated inner anchor head, a free section, an outer anchoring section and an anchor head part, wherein the prefabricated inner anchor head is provided with steel strands in a penetrating manner; the prefabricated inner anchor head is manufactured in a factory; the prefabricated inner anchor head and the steel strands are adhered to the bottom of a drill hole by using a grouting body; the upper part of the drill hole is the free end, which is at a free state, of each steel strand; the outer anchoring section is arranged at an opening of the drill hole; the anchor head part is arranged outside the opening of the drill hole and is fixed with the top end of each steel strand. The compound-type prestressed anchor cable structure is characterized in that the prefabricated inner anchor head is arranged on the bottom of the drill hole; the outer anchoring section is arranged between the upper end of the free section and the opening of the drill hole; grouting by the grouting body is carried out by three times, wherein the first grouting is stopped in the middle of the free section, fracturing grouting is adopted in the second grouting process to form the anchoring section, and the third grouting is carried out after a grout body of the anchoring section reaches an age and has the capability of stretching the steel strands, namely, the outer anchoring section is subjected to grouting, and except that the steel strand of the free section is at a free state, the steel strands of the inner anchor head and the outer anchoring section are adhered with the grouting body to form the compound-type prestressed anchor cable with the prefabricated inner anchor head and the outer anchoring section.

The invention provides a fluoro-carbon preservative weather-resistant coating and a preparation method thereof. By means of researching of modification to a fluoro-carbon coating with a graphene oxidedispersant, penetration of water and gas atoms, such as oxygen and the like, is effectively inhibited, so that contact between the coating and corrosive or oxidizing mediums is prevented, thereby achieving excellent protective effect to the substrate material. In addition, the graphene also can passivate a coating metal in order to enhance anti-corrosion performance of the coating. The graphene can improve antifriction and wearing-resistance of the coating layer. Hydroxyl groups in polyhydroxystyrene emulsion and alkyd resin emulsion can be subjected to esterification and amination reactionswith residual carboxyl groups and amino groups remaining on surface of the graphene oxide, thus forming stable covalent bonds, increasing compatibility of the resin substrate and graphene oxide, and fully achieving the excellent anti-corrosion performance of the graphene. The coating has excellent anti-corrosion performance, good weather resistance, outstanding comprehensive performance and greatconstructability, and has excellent economic and social significances.

The invention provides an antiseptic treatment method for surfaces of aluminum and an aluminum alloy, which comprises the following steps: providing an aluminum base body; conducting chemical degreasing on the aluminum base body; preparing a cerium-doped silane hybridization film on the aluminum base body by adopting a sol-gel method; and forming a ceramic coating composed of an infusible compound on the cerium-doped silane hybridization film through a vacuum coating method. Aluminum products obtained through the antiseptic treatment method comprises the aluminum body, the cerium-doped silane hybridization film formed on the surface of the aluminum base body and the ceramic coating composed of the infusible compound and formed on the cerium-doped silane hybridization film.

The invention provides a magnesium alloy surface anticorrosive treatment method, which comprises the following steps of: providing a magnesium alloy matrix; chemically deoiling the magnesium alloy matrix; performing chemical conversion treatment on the magnesium alloy matrix by using a solution taking plant oleic acid as a film forming agent, so that a layer of plant oleic acid conversion film is formed on the magnesium alloy matrix; and forming a ceramic coating consisting of infusible compounds on the plant oleic acid conversion film by using a vacuum coating method. The invention provides a magnesium product prepared by the anticorrosive method.

The invention provides an anti-corrosion processing method for a magnesium alloy surface and includes steps of providing a magnesium alloy substrate; subjecting the magnesium alloy substrate to alkaline degreasing; processing the magnesium alloy substrate with inorganic chemical conversion so that an inorganic chemical conversion coating is formed on the magnesium alloy substrate; processing the magnesium alloy substrate with organic chemical conversion so that an organic chemical conversion coating is formed on the inorganic chemical conversion coating; and forming a ceramic coating composed of refractory compounds on the organic chemical conversion coating by means of vacuum coating. The invention further provides magnesium products prepared through the anti-corrosion processing method.

The invention discloses a method for preparing a phosphorous-nitrogen synergistic wood fire retardant. The method includes the steps that trihydroxymethylaminomethane hydrochloride and phosphorus oxychloride are mixed in organic solvent at the temperature of 20 DEG C; the temperature is increased to 65-100 DEG C for heat preservation reaction for four to six hours, then the temperature is decreased, and an acid-binding agent of the equal mole is added; cooling and filtering are conducted, phosphoric acid is added into filtrate, filtering is conducted again, and vacuum drying is performed on a filter cake to obtain solid caged white amine phosphate hydrophosphate; and then water is added, tetrakis hydroxymethyl phosphonium phosphate and dodecy dimethyl benzyl ammonium bromide are added separately, and the pH of fire retardant liquid is adjusted to be 5 to 7.5 through ammonium hydroxide or phosphoric acid to obtain the product of the phosphorous-nitrogen synergistic wood fire retardant. The preparation method is simple, low in cost and free of pollution, the product is high in penetrability, good in durability and corrosion prevention function, high in fire-retarding effectiveness and convenient to apply, and large-scale production is easy.

The invention discloses a preparing method of carbon nanotube assembling capsaicin repellent biological anti-fouling marine paint. The method includes the steps of activating carbon nanotubes throughnitric acid and stearic acid, conducting polymerization with trifluoroethyl methacrylate as the monomer under the effect of an initiator to obtain a polyester emulsion doped with the carbon nanotubes,and dispersing a capsaicin acetone solution in the polyester emulsion. The intercalation and assembly and the slow-release effect of capsaicin between the carbon nanotubes and the affinity effect ofthe capsaicin and boat bottom steel plates are realized, the fastness of the boat bottom paint is improved, and the slow-release service life of the boat bottom paint is prolonged. The capsaicin is modified, then the capsaicin and the carbon nanotubes are assembled to form effective components, and the biological repelling and anti-corrosion effect of the long-service-life capsaicin can be realized.

The invention discloses an anti-corrosive waterborne coating and a preparation method thereof. The anti-corrosive waterborne coating is prepared from the following components in percentage by weight:45-60 percent of phosphate ester modified polyurethane emulsion, 8-16 percent of modified nanometer titanium dioxide, 5-8 percent of pigment and filler, 1-2 percent of thickener, 0-1 percent of dispersant, 0-1 percent of flatting agent, 0.5-1.5 percent of defoamer, 1-3 percent of film-forming additive and 8-14 percent of water. The phosphate ester modified polyurethane emulsion has very good hydrophilicity, so that a whole coating system has better stability and corrosion resistance; with addition of the modified nanometer titanium dioxide, a rough micron-nanometer mamma convex-shaped hydrophobic structure is formed on the surface of the coating, so that the hydrophobicity of the coating is added, and the coating effectively prevents metal from being contacted to other alloy and is taken as a barrier of the surface of the metal in a humid environment; and in addition, a solvent is the water, so that the coating is environmentally friendly without pollution.

The invention relates to high-temperature-resistant thermal isolation and heat insulation paint and a manufacturing method thereof. The paint is prepared from the following composition ingredients in parts by weight: 10 to 20 parts of lithium sodium silicate composite solution, 5 to 20 parts of water-borne phenolic resin, 30 to 50 parts of ceramic hollow micro beads, 10 to 30 parts of short ceramic fiber, 1 to 6 parts of bentonite, 1 to 8 parts of flake aluminum powder, 0.5 to 3 parts of preservatives, 0.5 to 3 parts of stabilizing agents, 0.5 to 3 parts of aqueous dispersants, 0.5 to 5 parts of coupling agents, 0.2 to 0.8 part of carboxymethylcellulose and 0.1 to 3 parts of pH regulators. When the paint is used under the conditions of the temperature resistant amplitude being -80 to 1300 DEG C and the temperature being 25 DEG C, the coating heat conduction coefficient is only 0.03 W / m*k; the curing time is shortened by the paint; the coating glazing temperature is reduced, so that the temperature is lowered from the conventional temperature of 800 DEG C to 600 DEG C; the vacuum structure compactness of a coating film is improved; the radiation heat and the heat conduction of infrared rays can be effectively inhibited and shielded.

The invention relates to the technical field of water-based coatings, provides a corrosion-resistant water-based foliar texture effect paint as well as preparation and construction methods thereof andsolves the problem that a solvent coating in the art results in environment pollution and human health hazards and has great potential safety hazards in a production process. The corrosion-resistantwater-based foliar texture effect paint is composed of a component A and a component B, wherein the component A comprises the following ingredients in percentage by mass: 40-50% of water-based epoxy resin, 0-3% of film forming additives, 0-5% of epoxy diluent, 0-2% of defoaming agent I, 0-1% of oil-based bentonite, 0-2% of dispersing agent, 30-50% of cement and 0-20% of pigments and fillers; and the component B comprises the following components in percentage by mass: 50-60% of water-based curing agent, 30-40% of water, 0-1% of water-based bentonite, 0-1% of defoaming agent II, 0-1% of water-based wetting agent, 2-4% of film forming additives, 0-5% of antirust additives and 0-10% of water-based color paste.

The invention provides a substituted chromic acid passivation environmental protection process. A passivation solution for passivation comprises 10-20 g / L of ammonium persulfate, 2-6 g / L of phytic acid, 15-25 g / L of trisodium phosphate, 1-3 mL / L of phosphoric acid, 0.5-1 mL / L of boric acid, 0.5-3 g / L of zirconium n-propoxide, 0.1-1 g / L of benzotriazole, 3-6 g / L of complexing agent, 5-10 g / L of water-soluble film-forming resin, 4-6 g / L of nanometer silica, 0.1-3 g / L of stabilizing agent, and the balance water. The passivation solution completely meets the electroplating wastewater discharge standards of China, RoHS of the European Union and other environmental protection standards. According to the process, ammonium persulfate and trisodium phosphate serve as main passivation substances, phytic acid serves as an auxiliary passivation substance, and the chelation bridging effect is achieved through crosslinking of water-soluble film-forming resin and the complexing agent, so that a three-substance combined molecular composite film layer is formed. Accordingly, the film forming effect is good, the film forming speed is high, and the film layer has good adhesive force and is compact and uniform in film formation.

The invention discloses metal surface anti-rust liquid and a preparation method thereof. The metal surface anti-rust liquid is prepared from the following raw materials in parts by weight: 7-19 partsof sodium benzoate, 1-3 parts of sodium silicate, 0.5-3 parts of sodium dodecyl benzene sulfonate, 5-16 parts of sodium nitrite, 0.5-3.5 parts of ethylenediamine tetraacetic acid, 0.3-2 parts of hydroquinone, 2-7 parts of sodium hypophosphite, 0.5-2 parts of citric acid, 0.3-1.5 parts of urea, 0.3-1.8 parts of Kathon, 0.8-3.5 parts of polymer composite synergistic activator and 90-240 parts of deionized water. After being applied to a metal surface, the metal surface anti-rust liquid prepared in the invention can prevent rusting of the metal surface for a long time, and thus has a good anti-rust effect.

The invention relates to a preparation method of a wood fire retardant with synergized multiple elements of phosphorus, nitrogen and boron. The preparation method comprises the following steps that firstly, a conventional stirrer, a thermometer and a fractionating device are arranged in a reactor; secondly, trihydroxymethyl aminomethane, phosphotriester and an organic solvent are weighed, placed in the reactor and heated till backflow, the temperature of the top of a column of the fractionating device is controlled to be the boiling temperature of fractionated alcohol, and the alcohol generated in a reaction is fractionated continuously until the fractionated alcohol reaches a theoretical quantity; thirdly, the temperature is lowered to below 40 DEG C, phosphoric acid with the mass percent concentration being 85% is added dropwise, stirring, filtering and vacuum drying of a filter cake are conducted, and caged phosphoric acid ester amine hydrogen phosphate is obtained; and finally, the caged phosphoric acid ester amine hydrogen phosphate is dissolved in water, boric acid is added for dissolution, then tetrakis(hydroxymethy) phosphate and tri(hydroxymethyl) alkyl phosphonium bromide are added in sequence and evenly stirred, the pH of the flame retarding liquid is adjusted with ammonium hydroxide or phosphoric acid to range from 6.5 to 8.5, and then the wood fire retardant is obtained. The preparation method is simple and free of pollution, the fire retarding efficiency is high, and large-scale production is easy.

The invention provides a novel environment-friendly transparent cutting fluid. The cutting fluid comprises, by mass, 3-9 parts of ADPEDS, 6-10 parts of ethylene oxide / propylene epoxide copolymer, 3.5-5.5 parts of branched-chain SAE, 1-5 parts of triethanolamine, 1.5-3.5 parts of neo-decanoic acid, 2-4 parts of tricarboxylic acid, 4-9 parts of trans-polyether, 3-5 parts of quaternary ammonium saltand 1-7 parts of phosphate esters. The novel environment-friendly transparent cutting fluid has good cooling performance, lubricating performance, rust resistance and oil removal performance and cleaning and anti-corrosion functions, and is easy to dilute, suitable for grinding and heavy-duty cutting of ferrous metal, aluminum alloy, copper and stainless steel, and has low foaming performance andgood performance in hard water or soft water.

The invention relates to a total-synthesis crystal cutting fluid and belongs to the industry of cutting fluid, particularly the technical field of production of artificial crystal cutting fluid. The cutting fluid provided by the invention is mainly prepared from a cleaning agent (sodium dodecylbenzene sulfonate), a preservative (triethanolamine borate), a lubricant (glycerin), an antirust agent (triethanolamine), a defoaming agent (dimethicone) and deionized water. The cutting fluid disclosed by the invention is alkaline, is mainly prepared by scientific compounding and matching of a great quantity of pure water and multiple superstrong functional agents, does not contain sodium nitrite having a carcinogenic effect to a human body, has an efficacy of keeping the pH value unchanged in the cutting process, realizes direct application of single components, is free from toxicity and pollution, is applicable to a semi-automatic and automatic cutting production line of various processes, issimple in process, convenient to operate, excellent in lubricating property, good in cutting quality, high in cutting efficiency, and less in foam generation, and can achieve an excellent surface smoothness. Compared with like products at home and abroad, the cutting fluid is less in use amount and long in life, and the cost can be saved by 1 / 6-1 / 8.

The invention discloses a formula of an anti-bacterial liquid for cleaning skin, which comprises, by weight, the following components: 0.20%-1.50% of 20% polyaminopropylbis, 0.50-2.00% of 98% carnation diol 68T, 0.25-2.00% of natural aloe extract, 1.00%-5.00% of PEG-60 hydrogenated vegetable oil, and the balance EDI pure water. The formula is in the form of easy skin absorption, is a preferred cleaning, moisture-keeping and easy-to-use eye protection solution for eyes, and has moderate acidity and alkalinity, and can better act on the peripheral skin of eyes with vigorous grease secretion andthe like so as to help eye disease treatment and nursing of patients with related diseases.