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64 results about "Strontium chromate" patented technology

Strontium chromate is a chemical compound, with the formula SrCrO₄.

A kind of primer for building curtain wall aluminum veneer and preparation method thereof

The invention relates to a primer for building curtain wall aluminum veneers and a preparation method thereof. The primer includes 45% to 55% of saturated polyester resin, 4% to 6% of amino resin, and 1% of epoxy phosphate by weight percentage. %~1.5%, calcium ion exchange antirust pigment 5%~10%, titanium dioxide 10%~15%, kaolin 5%~10%, dispersant 0.5%~1%, silicon titanium or silicon zirconium type coupling agent 0.5%~2%, anti-settling agent 0.1%~0.3%, S-150 aromatic hydrocarbon solvent 5%~10%, ethylene glycol butyl ether 5%~10%; among them, the dispersant is polyamide-amide-amine type Dispersant; the anti-settling agent is fumed silica. The primer of the present invention abandons heavy metal compounds such as strontium chromate in the traditional formula, so it will not cause heavy metal pollution and is more environmentally friendly; the use of silicon-titanium or silicon-zirconium coupling agent makes the adhesion of the primer on the surface of the aluminum veneer strong For the increase, the durability is also better. The formula of the primer of the invention is reasonable, the preparation method is simple, and the primer has good protection performance for non-ferrous metal materials such as aluminum veneer and galvanized sheet.
Owner:苏州金近幕墙有限公司

Salt-fog-resistant phosphate modified acrylic waterborne antirust coating for building scaffold

The invention discloses a salt-fog-resistant phosphate modified acrylic waterborne antirust coating for a building scaffold. The salt-fog-resistant phosphate modified acrylic waterborne antirust coating is prepared from the following raw materials in parts by weight: 35-60 parts of salt-fog-resistant phosphate modified acrylic core-shell emulsion, 2-8 parts of cosolvent, 10-15 parts of cobalt naphthenate, 10-15 parts of lead chromate, 5-10 parts of iron laterite, 2-5 parts of strontium chromate, 1-3 parts of rosin, 2-9 parts of ammonium metaborate, 0.5-0.9 part of chlorinated paraffin, 0.3-0.6part of cellulose acetate, 0.2-1.2 parts of dibutyl phthalate, 0.2-1.5 parts of substrate modifier, 0.5-6 parts of auxiliaries and 12-35 parts of deionized water. According to the antirust coating disclosed by the invention, the adhesive force and compactness between a film and a substrate are enhanced, so that water molecules, chloride ions and sodium ions are effectively isolated from enteringbetween substrates, the adhesive force, water resistance and anti-flash rusting property of the film are improved in a wet environment, and the salt-fog-resistant phosphate modified acrylic waterborneantirust coating has good adhesive force, water resistance, salt fog resistance, anti-flash rusting property, acid and alkali resistance and corrosion resistance.
Owner:ANHUI ZULIN NEW MATERIALS

Water-based flash-rust inhibitor and application thereof

InactiveCN105820633AExcellent flash rust inhibition effectNo flash rustAnti-corrosive paintsEpoxy resin coatingsWater basedElectron
The invention provides a water-based flash-rust inhibitor and application thereof. The water-based flash-rust inhibitor is prepared from, by weight, 2-10 parts of organic amine of lone pair electrons, 2-8 parts of an inorganic salt type corrosion inhibitor and 1-20 parts of a flash-rust inhibitor and further contains 15-30 parts of strontium chromate. The water-based flash-rust inhibitor serves as the flash-rust inhibitor to be applied to water-based paint. The water-based flash-rust inhibitor has an excellent flash-rust inhibiting effect, can still guarantee that no flash-rust phenomenon is produced in the construction process of the water-based paint in extreme construction environments, such as a low-temperature and high-humidity environment and a high-temperature and low-humidity environment and is good and stable in flash-rust inhibiting effect. The water-based flash-rust inhibitor is especially applied to water-based acrylic paint or water-based alkyd paint. The water-based paint added with the water-based flash-rust inhibitor is coated on a metal base material during construction, has a very good flash-rust inhibiting effect, and especially for steel parts, particularly the steel parts subjected to submerged-arc welding, has a very good flash-rust inhibiting effect.
Owner:SICHUAN YANDING WATER BASED ENVIRONMENT FRIENDLY PAINT CO LTD

Preparation method of spherical strontium chromate powder controllable in micron-sized crystal growth morphology

The invention relates to a preparation method of inorganic non-metallic powder, in particular to a preparation method of spherical strontium chromate powder controllable in micron-sized crystal growth morphology, in order to solve the technical problems that an existing method for preparing the strontium chromate powder is complicated in technique, growth morphology under the condition of not adding active additives is mostly linear or rod-like and the strontium chromate powder micro-sized spherical in growth morphology cannot be obtained. The method includes: firstly, preparing a sodium chromate solution; secondly, preparing a mixed solution A; thirdly, preparing a mixed solution B; fourthly, preparing the spherical strontium chromate powder controllable in the micron-sized crystal growth morphology. Preparation is carried out only at the room temperature, conditions are mild and easy to control, cost is low, the preparation method is simple, and mass production is facilitated; the prepared strontium chromate powder is controllable in particle morphology and size, excellent in performance and capable of achieving large-scale batch production. The preparation method is applied to the field of preparation of the inorganic non-metallic powder.
Owner:HARBIN INST OF TECH

Preparation method of water-based epoxy ester rust-surface primer

The invention discloses a preparation method of a water-based epoxy ester rust-surface primer, relating to the technical field of antirust treatment of a metal surface. The preparation method comprises the following steps: firstly, mixing the water-based epoxy ester resin with a dryer, then mixing with a dispersant, pigment and filler and antirust pigment, then blending a film-forming assistant, adefoaming agent and a leveling agent into the mixture, regulating pH value and then blending a rust transforming agent, deionized water and thickening agent into the mixture, to obtain the water-based epoxy ester rust-surface primer, wherein the rust transforming agent contains strontium chromate and composite phosphate. No gas is generated in production technology, the defects of the phosphate rust transforming agent can be avoided, and the prepared product can be applied to rusted base material surfaces which are not subjected to sandblasting derusting and are only subjected to simple treatment, and has excellent adherence force with rusted base material. The product is high in surface treatment tolerance, provides good anti-corrosion protection for protected articles after being directly coated on the rusted base material surfaces, and is good in product application property and anti-corrosion property.
Owner:IANGSU JINLING SPECIAL PAINT CO LTD

Super heat transfer working medium, super heat conducting element and manufacturing method of super heat conducting element

The invention discloses a super heat transfer working medium, a super heat conducting element and a manufacturing method of the super heat conducting element. According to the super heat transfer working medium, one or more inorganic salts are added into one or more common heat transfer mediums; the common heat transfer mediums are sodium, naphthalene, potassium, cesium, heat conducting oil, water, mercury, acetone, ammonia, methyl alcohol, ethyl alcohol, F-22(monochlorodifluoromethane), ethane, nitrogen, biphenyl or dowtherm; the inorganic salts are manganous-manganic oxide, cobalt oxide, beryl, cobalt blue, cadmium borate, tungsten cadmium borate, potassium titanate, boron carbide, tantalum oxide, ferroferric oxide, titanium dioxide, silicon dioxide, zirconium dioxide, zirconium trioxide, strontium chromate, lithium metaaluminate, sodium dichromate, potassium dichromate, titanium oxide, yttrium oxide, beryllium oxide, ytterbium oxide, dysprosium oxide, boron oxide, silicon oxide or aluminum oxide. The heat transfer capacity of the common heat transfer working mediums is greatly improved, heat transfer efficiency is improved, the application temperature range of heat transfer is widened, and the pressure intensity of the working state is reduced.
Owner:中能国业(北京)科技有限公司
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