100results about How to "Good aging resistance" patented technology

The invention provides a fireproof insulation material used for a wall surface and a preparation method. The material comprises natural sepiolite amiantus, natural vermiculite, closed cell perlite, light calcium carbonate, white cement, gesso, ordinary portland cement, high-alumina cement and seaweed powder, and is prepared by respectively crushing the above motioned components into 300 to 500 meshes, adding the crushed components into a mixer and stirring the components at a rotating speed of 500 to 800 r/m for 10 to 30 min. A construction method for the material comprises the following steps: taking 40 to 45% of an insulation energy saving wall surface material and 55 to 60% of water, mixing the wall surface material and water to obtain a slurry, applying the slurry onto a blank wall inthree times so as to form three slurry layers, carrying out maintenance for 5 to 7 days and then carrying out paint decoration. The insulation wall material provided in the invention has good permeability, a small coefficient of thermal conductivity, a high coefficient of thermal insulation, good aging resistance, a good waterproof effect, good anti-cracking performance, a low price and a wide application scope; the preparation method is simple, is easy to operate and convenient to construct and enables work efficiency to be improved and production cost to be reduced.

The invention discloses a heatproof oil-resistant cable. The heatproof oil-resistant cable comprises a cable core. The cable core comprises a conductor and an insulating layer. The cable core is externally provided with an inner sheath layer. A steel band armor layer is arranged outside the inner sheath layer. An outer sheath layer is arranged outside the steel band armor layer. The outer sheath layer is made of a heatproof oil-resistant modified terpolymer EP rubber material. The raw materials of the heatproof oil-resistant modified terpolymer EP rubber material comprises terpolymer EP rubber, nitrile rubber, carbon nanotube, nano-alumina, modified attapulgite, eleaostearic acid, zinc oxide, sulphur, 4, 4'-dithiomorpholine, 1,1,3-3(2-methyl-4-hydroxy-5-tert-butyl phenyl) butane, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, a promoter M, a promoter DM, dicyclohexyl phthalate, dioctyl phthalate and a silane coupling agent. The heatproof oil-resistant cable is good in oil resistance and heat resistance, the aging resistance is good, and the service lifetime is long.

The invention discloses a safety protection and control system for a closed space in an acidic etchant gas environment. The system integrates acidic etchant gas purification, positive pressure protection, alarming and oxygen self-supply, comprises five main parts, namely an acidic etchant air filtering system, an air-conditioning system, a control center, a main-control box and an oxygen self-supply system, and is applicable to safety protection for personnel and equipment in a closed space in the environment of any of acidic etchant gases of sulfur dioxide, hydrogen chloride, nitrogen oxide, hydrogen sulfide, chlorine gas, sulfuric acid, hydrochloric acid, nitric acid mist. As for an acidic etchant gas with the initial concentration of 500-2,000 ppm, the effective protection time is 30 minutes at least and 180 minutes at most; even when the acidic etchant air filtering system is in a complete failure, the closed space can keep an excess pressure for 30 minutes through the oxygen self-supply system, and be evacuated to a safety zone on the condition that the closed space remains in operation.

The invention discloses a leather finishing agent and a preparation method thereof and relates to the technical field of leather. The leather finishing agent is mainly prepared from isocyanate, dibutyltin dilaurate, epoxy resin, triphenyl bismuth, 2,2-dimethylolpropionic acid, lauryl sodium sulfate, polyethylene glycol, triethanolamine N-Coco acy-L-Glutamate, sodium borate, ascorbyl palmitate, cetyl trimethylammonium bromide, dimethicone, Lubrajel, glycerin, lignite wax and a deodorant. The leather finishing agent is high in scratch resistance, has glossy, soft and natural coatings, is good in binding force, very good in stability and good in film-forming property and has very good aging resistance, cold resistance and breathability; besides, the deodorant is prepared from multiple raw materials including triphenyl phosphite, phenoxyethyl isobutyrate, sodium diethylhexyl sulfosuccinate and the like, can effectively remove odors of leather and keep the aroma of leather products, has certain anti-corrosion and antibacterial effects and can improve the quality of leather.

The invention discloses a polyvinyl chloride fluoric ferrophosphorus coating, which consists of components A and B. Component A is divided into A1 and A2. A1 is a polyvinyl chloride fluoric ferrophosphorus primer; and A2 is a polyvinyl chloride fluoric ferrophosphorus finish coat. Component B is a polyurethane curing agent. Before use, a primer is prepared with A1 and B in the ratio of 12 to 1 by weight; and a finish coat is prepared with A2 and B in the ratio of 12 to 1 by weight. The coating film thickness is 180 Mu m, and the service life of the coating can be more than 15 years under the heavy-duty anticorrosive condition. The coating can be widely applied in anticorrosion engineering of industrial architecture, petroleum, chemical engineering, medicine, process pipes, equipment, steel components, bridges, and shipbuilding, as well as protection of strong, medium and weak corrosive media on surfaces of indoor and outdoor steel structures and concrete. The coating has the characteristics of efficient corrosion prevention, high ratio of performance to price, high resistance to temperature and weatherability, excellent oil resistance, convenient construction, and long service life.