52results about How to "Excellent high and low temperature resistance" patented technology

The invention discloses a fluorine-containing acrylic acid super-hydrophobic resin for oil-water separation and a preparation method thereof. The super-hydrophobic resin is prepared from the following raw materials: hard monomers, soft monomers, fluorine-containing functional monomers, organic bentonite, and fullerene through radical polymerization reactions in a solution. The technology process is simple, the production cost is low, and the prepared fluorine-containing acrylic acid super-hydrophobic resin has stable properties and meets the technical requirements. The super-hydrophobic, anti-aging, and high / low temperature resistant properties of the resin are excellent, and the resin has an excellent performance on separating oil and water, can be used to produce the separating filter core of automobile engine filter, is capable of effectively removing water (in various forms) in oil, and can be widely applied to automobile separation filters.

The invention relates to hot-melting type filling paste for an electric cable, which mainly comprises base oil, insulation paste, an oil separation inhibitor, a thickening agent and an antioxidant. The invention further provides a preparation method of the hot-melting type filling paste. The hot-melting type filling paste for the electric cable provided by the invention has the main characteristics of excellent colloidal stability and oxidation stability, heat resistance, weather resistance, no oil separation in systems, small acid value, strong water resistance, no emulsification, excellent high / low temperature performance, and extremely-excellent electrical properties and dielectric properties; the hot-melting type filling paste is mainly applicable to filling air gaps in a cable core of a multi-conductor wire cable, or gaps among electric cable members of an any structure by heating, so as to prevent water or other fluid from flowing or migrating into the electric cable and provideexcellent functions in insulation, waterproofing, dampproofing, buffering and the like for the electric cable.

The invention discloses a sealing ring. The sealing ring comprises the following raw material formula components in parts by weight: 120-130 parts of nitrile rubber, 90-100 parts of ethylene-propylene-diene monomer rubber, 60-80 parts of chloroprene rubber, 90-100 parts of butyl rubber, 25-30 parts of activated carbon, 10-12 parts of carbon fiber, 10-12 parts of graphite, 8-10 parts of dioctyl terephthalate, 6-8 parts of an ethylene-vinyl acetate copolymer, 8-10 parts of dibutyl ester, 8-10 parts of chlorinated paraffin, 5-8 parts of dioctyl sebacate, 12-15 parts of titanium dioxide and 12-15 parts of zinc chloride. The sealing ring has the beneficial effects that the strength is high, the compressive deformation is low, the high-low temperature resistances are excellent, the elongation is increased, the glue abrasion loss is low, the service life is long, the raw materials and the formula are reasonable, the cost is low, and the process is simple.

The invention provides composite modified asphalt as well as a preparation method and application thereof, and belongs to the field of road building materials. The composite modified asphalt provided by the invention comprises the following components in parts by weight: 72-84 parts of matrix asphalt, 15-25 parts of activated rubber powder, 0.5-2 parts of SBS, 0.1-0.8 part of a stabilizer, 0.1-0.6 part of a solubilizer and 0.1-0.6 part of an anti-aging agent. Aiming at the defects of common rubber asphalt, the invention designs the economical activated rubber powder / SBS composite modified asphalt with balanced performance by adopting matrix asphalt, activated rubber powder, SBS, a stabilizer, a solubilizer and an anti-aging agent, and the asphalt has the advantages of excellent high-temperature and low-temperature performance, proper viscosity and better storage stability.

The invention brings forward an oil-resistant sealant, which at least contains a liquid polysulfide rubber, isocyanate and an epoxy resin carrier and is prepared by using dibutyltin dilaurate or triethylenediamine as a catalyst. A preparation method of the oil-resistant sealant comprises the following steps of: a) weighing ingredients: respectively weighing the epoxy resin, the liquid polysulfide rubber and isocyanate by a balance and placing the ingredients into a crucible; b) stirring: fully and uniformly stirring by using a glass rod; c) adding a catalyst: dropping dibutyltin dilaurate, and fully and uniformly stirring; d) standing: standing at normal temperature for 5 min. The technological method provided by the invention is simple and can be used to remarkably improve the product's oil resistance, insulating properties, air tightness and water tightness. By the adoption of the preparation method, defects of rubber sealants in the prior art such as low adhesive strength, poor oil resistance and many bubbles after solidification is avoided, and the problem that a sealant which is immersed in oil for a long time is easy to age and crack is solved.

The invention relates to hot-melting type filling paste for an electric cable, which mainly comprises base oil, insulation paste, an oil separation inhibitor, a thickening agent and an antioxidant. The invention further provides a preparation method of the hot-melting type filling paste. The hot-melting type filling paste for the electric cable provided by the invention has the main characteristics of excellent colloidal stability and oxidation stability, heat resistance, weather resistance, no oil separation in systems, small acid value, strong water resistance, no emulsification, excellent high / low temperature performance, and extremely-excellent electrical properties and dielectric properties; the hot-melting type filling paste is mainly applicable to filling air gaps in a cable core of a multi-conductor wire cable, or gaps among electric cable members of an any structure by heating, so as to prevent water or other fluid from flowing or migrating into the electric cable and provide excellent functions in insulation, waterproofing, dampproofing, buffering and the like for the electric cable.

The invention discloses an oil inlet sealing ring material for a vehicle brake master cylinder and a process thereof for manufacturing a sealing ring. The material is prepared from the following components in part by weight: 80 to 120 parts of ethylene propylene rubber, 4 to 6 parts of active agent, 1 to 3 parts of lubricant, 2 to 4 parts of acid-base balance agent, 1 to 3 parts of age resistor, 2 to 4 parts of sulfurizing agent and 25 to 35 parts of inorganic filler; then the components are subjected to the processes, namely mixing and molding, primary sulfurizing, punching and edge removingand secondary sulfurizing to obtain the oil inlet sealing ring material product with high strength, low compression deformation, tear resistance, resistance to braking fluid corrosion, resistance to low and high temperatures and excellent performance for the vehicle brake master cylinder; and the production efficiency and the product percent of pass are high, and the product can completely substitute similar imported products.

The invention discloses a low-cost high-performance caulking adhesive. The caulking adhesive comprises, by mass, 50-79% of catalytic oil slurry, 16-40% of rubber powder and 5-10% of hard asphalt. Theinvention further discloses a preparation method of the caulking adhesive. The caulking adhesive takes the low-price catalytic oil slurry as a main raw material, the high-proportion rubber powder is added for shearing and mixing to form a high-performance cementing material, then a certain proportion of hard asphalt is added to adjust the hardness, volatile components in the cementing material arefurther removed through long-time ventilation and stirring oxidation, the high-temperature stability and the ageing resistance of the cementing material are improved, and then the low-cost high-performance caulking adhesive for engineering is prepared.

The invention relates to the technical field of pipeline conveying equipment and discloses an efficient thermal insulation pipeline clamp device. The device comprises a thermal insulation pipeline anda connecting piece. One side of the connecting piece is fixedly connected with thermal insulation pieces. One sides of the thermal insulation pieces are fixedly connected with supports. The supportsare fixedly connected with the corresponding thermal insulation pieces through a hinge pin. The bottoms of the supports are fixedly connected with a fixing base. The outer surface of the thermal insulation pipeline is fixedly connected with a thermal insulation ring. The outer surface of the thermal insulation ring is fixedly connected with a fireproof layer. The outer surface of the fireproof layer is fixedly connected with an anticorrosion layer. The outer surface of the anticorrosion layer is fixedly connected with an antiskid layer. The outer surface of the antiskid layer is provided witha clamping ring. According to the efficient thermal insulation pipeline clamp device, through the connecting piece, the thermal insulation pieces, the supports, the hinge pin and the thermal insulation ring, the thermal insulation pipeline and the connecting piece are spaced from the supports by means of the thermal insulation pieces, the connecting piece and the thermal insulation pieces are wrapped within the thermal insulation ring, heat is prevented from being dissipated outside through the supports, and the problem that a common pipeline clamp dissipates heat due to accessory heat transfer is solved.

The invention discloses scratch-resisting and temperature-resisting flexible polyester-nitrile butadiene rubber composite powder paint. According to the powder paint, polyester resin is compounded with liquid nitrile butadiene rubber and natural latex, so that shrinkage hole and cracking phenomena of a coating are effectively improved when hydroxyalkylamide is used as a curing agent and the adhesive force between the coating and a metal material is improved; added ultrafine polytetrafluoroethylene powder has good flowability so that the surface performance of the paint can be effectively improved and the coating has scratching-resisting and sticking-resisting effects; silicon dioxide aerogel particles subjected to surface modification of a silane coupling agent have good dispersibility; the comprehensive performance of the coating are effectively improved; a finally prepared finished product has the advantages of rapid curing and film forming speeds, soft and firm film layer, oil resistance and water resistance, scratching resistance and cracking resistance, and high temperature and low temperature change resistance; the user experience in an outdoor environment is effectively improved and the service life is effectively prolonged.

The invention relates to an optical fiber ribbon coating paste used in a band shape optical cable. The paste is mainly composed of a base oil, an oil separation inhibitor, a pour-point depressant, an anti-oxidant, a tackifying lubricant, an organic densifier and a thixotropic agent. The invention also provides a preparation method of the paste. The optical fiber ribbon coating paste is mainly characterized by good colloid stability, oxidation stability, hear resistance and weatherability, free oil separation system, low acid value, large penetration degree, strong clunging, good permeability and low viscosity. The paste can help the optical fiber ribbon of the band shape optical cable always stay at a most stress-free state in the loose cannula and the cable core of the cable.

The invention relates to thixotropic optical fiber filling paste for a ribbon optical cable, which mainly comprises base oil, an oil separation inhibitor, a pour point depressant, an antioxidant, an organic gelling agent, an inorganic gelling agent and a thixotropic agent. The invention also provides a preparation method for the thixotropic optical fiber filling paste for the ribbon optical cable. The thixotropic optical fiber filling paste for the ribbon optical cable is mainly characterized in that: the thixotropic optical fiber filling paste has excellent colloid stability and oxidation stability, heat resistance, weather resistance, non separation of oil in a system, low acid value, high thixotropic index, high water resistance, no emulsification, good high-temperature trickle-down property, high temperature resistance and low temperature resistance, is mainly used to be filled in a loose tube of the ribbon optical cable so as to prevent water or other fluid from flowing into or moving into the optical cable, and provides excellent effects of resisting water, buffering and the like for the optical cable.

The invention discloses a fluorine-containing acrylic superhydrophobic resin for oil-water separation and a preparation method thereof. The superhydrophobic resin passes raw materials such as hard monomers, soft monomers, fluorine-containing functional monomers, organic bentonite and fullerene through a solution. Prepared by free radical polymerization. The reaction process of the present invention is simple and the production cost is low. The performance of the fluorine-containing acrylic superhydrophobic resin prepared by the present invention is stable and meets the requirements of various technical indicators; its superhydrophobicity, aging resistance, high temperature and low temperature resistance and other performances are quite excellent. It has excellent oil-water separation performance, meets the application requirements of the separation filter element of the automobile engine filter, can effectively remove various water in the oil, and can be widely used in the separation filter element of the automobile.

The invention discloses an oil-resistant aging-resistant chlorhydrin rubber and polyacrylate rubber mixed rubber sealing ring which is prepared by carrying out banburying, open refining and secondary vulcanization on the raw materials of chlorhydrin rubber, polyacrylate rubber, shellac, and the like. The sealing ring provided in the invention has the advantages of oil resistance, aging resistance, excellent high temperature resistance and low temperature resistance, high tensile strength and a simple preparation method.