78 results about "Ammonium bichromate" patented technology

The invention provides a powdery mixture of a multi-component tunnel fire retardant coating, which is prepared from 582 resin, Portland cement, sepiolite, ammonium dichromate, light calcium carbonate, aluminum silicate, fly ash hollow floating beads, wollastonite powder, argil, cellulose ether, a concrete expanding agent, tin oxide and polypropylene fiber. The powdery mixture is prepared by throwing the fire retardant coating into a V-shaped forced mixer according to the proportion of the components; stirring the mixture for 10 to 15 minutes to prepare the powdery mixture; stirring water and the fire retardant coating powder in a weight ratio of 0.8-0.85 into thick paste; and spraying a tunnel from the waist to the top with spray painting equipment to reach the predetermined thickness.

A disclosed tunnel environment-friendly fireproof paint is mainly prepared by stirring the following raw materials in parts by weight: 30-35 parts of refractory cement, 30-35 parts of sulphoaluminate cement, 30-35 parts of AEC expansive cement, 30-35 parts of urea-formaldehyde resin, 10-16 parts of soybean oil fatty acid alkyd resin, 5-9 parts of magnesium hydroxide, 5-9 parts of aluminium hydroxide, 10-15 parts of meerschaum, 5-9 parts of perlite, 10-15 parts of ethyl cellulose, 6-10 parts of glass fiber, 8-11 parts of alumina silicate fiber, 5-7 parts of glass hollow floating beads, 4-8 parts of kaoline, 7-9 parts of vermiculite and 4-8 parts of ammonium bichromate. The paint provided by the invention is excellent in fireproof performance, corrosion resistance and stability, high in bonding strength, safe, nontoxic, short in curing time, convenient to construct and high in efficiency.

The invention discloses a water-based flexographic ultraviolet curing ink binder. The water-based flexographic ultraviolet curing ink binder is prepared from 4%-10% of polyvinyl alcohol (PVA), 3%-7% of an auxiliary, 1%-6% of ammonium dichromate, 3%-4% of industrial alcohol, 70%-85% of deionized water and sodium nitrate less than 1%. The invention further discloses a preparation method of the water-based flexographic ultraviolet curing ink binder. The method comprises the steps that the PVA17-99 is prepared; the rest of the auxiliary is added. Photo-sensitive resist prepared from the water-soluble polymer resin polyvinyl alcohol uses water as solvent and is non-poisonous, pollution-free and low in price, materials are convenient to take, and when the photo-sensitive resist is used as the binder, no solvent volatilize, so that the photo-sensitive resist is safe and pollution-free; secondly, the production efficiency is high, the printing quality is excellent, the color saturation, the color intensity and the definition are obviously better than those of ordinary link binders, equipment is easy to clean, the photo-sensitive resist is very beneficial to achieving environment-friendly healthy and green printing, moreover, the photocuring speed of the photo-sensitive resist is improved, and thus the printing efficiency is improved.

The present invention discloses an exterior wall anti-mildew waterproof coating material, which is prepared from the following raw materials by weight: 5-8 parts of ammonium dichromate, 1.2-2.7 parts of toluene diisocyanate, 0.8-1.6 parts of m-cresol and p-cresol, 2.3-3.5 parts of a rare earth drier, 2.5-5 parts of polyvinyl chloride, 1.2-2.3 parts of polyoxyethylene alkyphenol phosphorate, 1.5-3.3 parts of phenethyl phenol polyoxyethylene ether polyoxypropylene ether, and 1.2-2.9 parts of a benzyl naphthalene sulfonic acid formaldehyde condensation compound dispersing agent. Compared with the existing waterproof coating material, the exterior wall anti-mildew waterproof coating material of the present invention has excellent water resistance impermeability, can form an air-permeable hydrophobic film with a certain depth on the building exterior wall so as to prevent moisture from intrusion and further provide an effect of wall mildew resistance, has characteristics of less influence by ultraviolet light, long service life, good durability and easy construction, and can be applied for a variety of building sites.

The invention a cable sheath material having cracking resistance and good thermal stability and used for wind power generation. The cable sheath material is prepared from raw materials in parts by weight as follows: 10-30 parts of phenyl siloxane rubber, 10-20 parts of nitrile rubber, 35-65 parts of styrene butadiene rubber, 1-2 parts of N,N'-m-phenylene dimaleimide, 1-2 parts of sodium ammonium dichromate, 2-4 parts of dicumyl peroxide, 10-15 parts of white carbon black, 45-65 parts of heavy calcium carbonate, 15-25 parts of bentonite, 15-23 parts of barite, 2-4 parts of palm wax, 2-5 parts of trioctyl phosphate, 1.5-2.5 parts of microcrystalline wax, 1.5-3 parts of dibutyl phthalate, 1-1.8 parts of epoxidized soybean oil, 1-2 parts of stearic acid and 2-4 parts of an antioxidant AT-215. The cable sheath material has good thermal stability and excellent mechanical properties and is aging-resistant.