30results about How to "Guaranteed high temperature resistance" patented technology

The invention discloses a high-temperature-resistant insulation coating and a preparation method and application thereof. Slurry for preparing the high-temperature-resistant insulation coating is at least prepared from the following components in parts by mass: (a) 100 parts of polysilazane resin, (b) 1-100 parts of polysiloxane resin containing active functional groups, (c) 5-100 parts of a filler, and (d) 0-10 parts of an assistant. By adopting the polysilazane resin as a primary film forming substance and adopting the polysiloxane resin containing the active functional groups as a secondaryfilm forming substance, the high-temperature-resistant property is ensured, and the coating also has good tenacity; the preparation method is simple and does not rely on special equipment; the temperature-resistant property of the high-temperature-resistant insulation coating prepared through the method can be appropriately adjusted according to actual needs so as to adapt to different application fields; and the preparation method is wide in application range and can be suitable for various insulation objects, strips, pipes, wires and the like.

The invention relates to heat-resistant self-adhesive enamelled wire paint. The heat-resistant self-adhesive enamelled wire paint disclosed by the invention comprises the following raw materials in parts by weight: 160-350 parts of dimethylbenzene, 430-620 parts of N-methylpyrrolidone, 169-191 parts of polyetherimide resin, 10-18.3 parts of boron phenolic resin, 19-33.8 parts of phenol formaldehyde epoxy resin, and 0.2-0.3 part of a slipping agent. The heat-resistant self-adhesive enamelled wire paint disclosed by the invention has good heat resistance and wet-sticky-resistant property, and can meet production requirements under high-temperature and high-humidity weather conditions.

The invention discloses an aryl-1,3,5-triazine polyarylester and a preparation method thereof, and belongs to the technical field of polymer science. The aryl-1,3,5-triazine polyarylester is characterized in that a macromolecular main chain contains a structural unit like the general formula I. The aryl-1,3,5-triazine polyarylester with high molecular weight, excellent thermal stability and good mechanical strength can be conveniently and rapidly prepared with disilyl ester compound disclosed by the invention and commercial aromatic bisphenol monomer as polycondensation monomers and/or other commercial disilyl ester compounds added at the same time as copolycondensation monomers by the step of step-by-step polycondensation in a high-boiling-point inert liquid medium or in a molten/solid phase state. The polyarylester resins can be used in the fields of heat resistance paints, coating, adhesives, separation membranes, composite materials and the like, and have wide application prospects.

The invention belongs to the technical field of garment materials, and particularly relates to an antibacterial firefighting garment material. The antibacterial firefighting garment material comprises a waterproof layer, a heat insulating layer and an inner layer, wherein the heat insulating layer is arranged on the inner side of the waterproof layer in a heat seal mode, and the inner layer is glued onto the inner side of the heat insulating layer. According to the antibacterial firefighting garment material, the fabric of the inner layer has a stable and lasting antibacterial function after being treated with coating process, sterilization or suppression of breeding of microorganisms on the surface of the garment material can be achieved through contact, and therefore the long-term antibacterial purpose and sterilization are achieved. The antibacterial firefighting garment material is suitable for being used as a firefighting garment material.

The invention discloses an asphalt anti-stripping agent as well as preparation and application methods thereof, and relates to the technical field of asphalt additives. The asphalt anti-stripping agent comprises the following components in parts by mass: 3.7-6.5 parts of paraffin, 2.2-4.2 parts of fatty acid and 2.5-5.5 parts of sodium lignin sulfonate. The preparation method of the asphalt anti-stripping agent comprises the following steps: adding paraffin, fatty acid and sodium lignin sulfonate into a mixer in parts by mass, and stirring at a temperature of 70 to 90 DEG C until the components are uniformly mixed. The application method of the asphalt anti-stripping agent comprises following steps: 98%-99% of matrix asphalt is heated to 220 DEG C, 1%-2% of the asphalt anti-stripping agentas described in any one of claims 1-2 is added, and an obtained mixture is stirred and mixed at 220 DEG C for 3 hours. The asphalt anti-stripping agent disclosed by the invention is prepared by proportioning low-cost materials at high temperature, has good water resistance and high-temperature resistance, and when the asphalt anti-stripping agent is applied, the asphalt anti-stripping agent and matrix asphalt are mixed and stirred at high temperature, so that the use amount is larger, but the effect is better.

The invention relates to a manufacturing method of red fluorescent powder for a tri-phosphor energy saving lamp. The manufacturing method of the red fluorescent powder comprises the following steps of: firstly, sieving raw materials, namely Y2O3, Eu2O3, LiF, H3BO3 and BaCl2, and then mixing to form a raw material of the red fluorescent powder; secondly, mixing the sieved raw materials, placing the mixed raw materials into a tunnel furnace under the oxidation atmosphere, firing at a high temperature, and cooling to obtain a fired product, namely a primary product; thirdly, grinding the fired fluorescent primary product, sieving with a 100-mesh sieve, throwing the sieved fluorescent powder into a dispersion machine, sieving powder syrup with a 500-mesh water sieve, washing, carrying out suction filtration, drying, and sieving the dried powder with a 200-mesh sieve, thus the red fluorescent powder for the tri-phosphor energy saving lamp is obtained. The obtained fluorescent powder has the characteristics of small high temperature attenuation, moderate particle size and high lighting effect.

The invention discloses a high temperature and high pressure resistant packaging method for an underground communication device of a coiled tubing drilling machine, which is characterized by comprising the following steps of: making an underground communication circuit board by using a high temperature resistant printed board, high temperature resistant soldering tin and a high temperature resistant circuit element; packaging the underground communication circuit board into an outer pressure resistant cylinder; and providing a high temperature resistant connector assembly for the connection between the underground communication device and an optical cable. The high temperature and high pressure resistant packaging method for the underground communication device of the coiled tubing drilling machine has the beneficial effects that the underground communication device is packaged into the outer pressure resistant cylinder so that the high pressure resistance of the communication device is improved; the printed board, the soldering tin and the circuit element which can stably work in a high temperature environment are adopted so that the high temperature strength of the communication device is improved; a reliable informationized data basis is provided for the drilling construction, the drilling control precision and safety are improved, and the drilling control efficiency is increased; in addition, the high temperature and high pressure resistant packaging method for the underground communication device of the coiled tubing drilling machine has the characteristics of good sealing performance, simplicity in operation, low in cost and the like.

The invention provides a formula of modified environment-friendly high molecular environment-friendly sheet which is prepared from the following components in percentage by mass: 50-55% of grade leveltalc powder, 30-35% of polypropylene resin, 12-15% of high density polyethylene and 2% of a dyeing agent. The formula not only can ensure high-temperature resistance, but also ensure the portability,flexibility and degradability.

The invention provides a manufacturing method of a power diode and the power diode, wherein the manufacturing method comprises the steps of sequentially forming an N type epitaxial layer and an N typejunction region of a preset area of the N type epitaxial layer on an N type substrate; sequentially forming a field oxide layer, a polycrystalline silicon layer and an insulating layer mask structureon the N type epitaxial layer after forming the N type junction area; and the insulating layer mask structure and the N type junction area are vertically aligned; using the insulating layer mask structure as a mask and sequentially carrying out anisotropic etching on the polycrystalline silicon layer and the field oxide layer so as to expose a designated area for manufacturing an epitaxial layerof a body region; forming a P type body region in a prescribed region of the epitaxial layer and forming a P- type region at an edge of the P type body region; and forming an N+ type area and electrode separated from the P- type area in the epitaxial layer on the inner side of the P- type area so as to complete manufacturing of the power diode. Through the technical scheme of the present invention, the on-state pressure drop of the device is reduced, and the reliability of the power diode is further raised.

The invention discloses extreme pressure lubricating grease and a preparation method thereof. The lubricating oil comprises the following raw materials in percentage by weight: 10-20% of soap powder, 1-3% of an anti-adhesion composition, 5-10% of boric acid, 1-3% of butyl oleate, 1-5% of composite hydroxide salt, 1-3% of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1.5-2.3% of a high-temperature-resistant additive, 1-3% of a polyacrylate-styrene copolymerized water-based emulsion, 1-5% of water, 0.5-1% of an extreme pressure agent, 0.5-1% of a pour point depressant and the balance of base oil, the invention relates to the technical field of lubricating grease. According to the extreme pressure lubricating grease and the preparation method thereof, the anti-adhesion effect of the lubricating grease can be improved on the basis of ensuring high temperature resistance, high pressure resistance and aging resistance of the lubricating grease, and the purpose of reducing the adhesion of the lubricating grease by adding an anti-adhesion composition and a high-carbon organic matter into the lubricating grease is well achieved; the lubricating grease is prevented from being unevenly adhered to a smeared mechanical structure in a large area, the compression resistance and the high temperature resistance of the lubricating grease are guaranteed, and the aging time and the service life of the lubricating grease are prolonged.

The invention relates to a reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and a preparation method of the reinforced polyphenylene sulfide composite material, and belongs to the technical field of polyphenylene sulfide composite materials. The reinforced polyphenylene sulfide composite material provided by the invention comprises the following raw materials in parts by mass: 20-70 parts of high-fluidity polyphenylene sulfide resin, 30-50 parts of chopped glass fiber, 0.1-20 parts of ground glass fiber, 0.1-10 parts of hollow glass micro-beads, 0.1-5 parts of carbon black master batch, 0.2-1.0 part of an antioxidant, 0.2-1.0 part of a lubricant, 0.3-10.0 parts of a compatilizer, and 0.1-1.0 part of a flow promoter. According to the invention, the reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content is smooth and flat in surface, low in floating fiber, free of obvious warping, high in glass fiber content and excellent in mechanical property; and the invention also provides a preparation method which is simple and easy to implement and reduces the production cost.

The invention discloses an intelligent power distribution box and relates to the technical field of power distribution boxes. The intelligent power distribution box comprises a shell, wherein the surface of the shell is coated with protection coating; the chemical content of the protection coating is as follows in percentage by mass: 16 percent to 18 percent of MA-2 thermosetting acrylic resin, 5percent to 7 percent of polyethersulfoneketone, 3 percent to 4 percent of nitrile butadiene rubber, 0.6 percent to 0.7 percent of phosphate, 0.5 percent to 0.9 percent of a dispersant, 1.1 percent to1.4 percent of a plasticizer, 0.5 percent to 0.8 percent of silicate, 2.6 percent to 2.9 percent of an accelerator and the balance of filler and auxiliary agents. The protection coating prepared by the invention has relatively good high temperature resisting performance and corrosion resisting performance; the wear resisting performance and the adhesion force on the shell are also remarkably improved.

The invention discloses a novel conductive adhesive. The novel conductive adhesive is prepared from the following raw materials in parts by weight: 5-50 parts of modified epoxy resin, 0-20 parts of epoxy resin, 5-20 parts of curing agent, 30-70 parts of silver coated copper powder, 1-30 parts of nano-silver alloy powder, 0.1-1 part of defoaming agent, 0.1-1 part of antioxidant and 0.1-1 part of flame retardant. The preparation method comprises the following steps of weighing the raw materials according to the ratio of the formula of the conductive adhesive, mixing and stirring the raw materials uniformly, finally stirring and defoaming the raw materials by using a vacuum defoaming stirrer, thereby obtaining the conductive adhesive after stirring and defoaming. The novel conductive adhesive has the characteristics of long period of use, suitable viscosity for silk screen printing, high temperature resistance, low expansion coefficient, high conductivity and long shelf time.

The invention discloses a multistage adsorption polymer fluid loss agent and a preparation method thereof, and belongs to the technical field of oil field chemicals and additives for oil well cement well cementation. The multistage adsorption polymer fluid loss agent comprises the following components in percentage by weight: 35%-60% of a biopolymer, 20%-40% of a terpolymer and 10%-30% of a quadripolymer. The multi-stage adsorption polymer fluid loss agent provided by the invention can be used for ultra-high-temperature deep well cementation, the applicable temperature can reach 30-210 DEG C, and the multi-stage adsorption polymer fluid loss agent can effectively inhibit poor stability of cement paste caused by excessive dispersion at high temperature and improve the condition of abnormal gelatinization of the cement paste caused by excessive strong adsorption groups; the adaptability of the polymer fluid loss agent in an oil well cement slurry system is improved.