38results about How to "Meet heat resistance requirements" patented technology

The invention discloses addition-type heat-resistant silicon rubber and a preparation method thereof. The heat-resistant silicon rubber comprises a component A and a component B, wherein the component A is prepared from the following ingredients in parts by weight: 100 parts of methyl phenyl vinyl silicone oil, 2-4 parts of catalyst, 4-12 parts of heat-resistant additive processed by a silane coupling agent, and 400-500 parts of auxiliary packing processed by the silane coupling agent; the component B is prepared from the following ingredients in parts by weight: 100 parts of methyl phenyl vinyl silicone oil, 1.8-2.5 parts of cross-linkingagent, 0.1-0.15 parts of inhibitor, 4-12 parts of heat-resistant additive processed by the silane coupling agent, and 400-500 parts of auxiliary packing processed by the silane coupling agent; and the components A and B are evenly mixed according to the equal mass ratio, defoamed in vacuum and cured to prepare the addition-type heat-resistant silicon rubber. The heat-resisting temperature of the addition-type heat-resistant silicon rubber disclosed by the invention can achieve 460 DEG C; and the heat-resisting requirements of the fields such as aeronautics and astronautics, ignition cable protecting bushes of automobiles, and high-temperature sealing elements on the silicon rubber can be met.

The invention discloses a hookah which comprises a smoke pan head, a tray, a smoke pipe, a smoke discharging barrel and a smoke bottle which are communicated in sequence from top to bottom, wherein the smoke discharging barrel is connected with a hose; a suction nozzle is arranged at the end part of the hose; a hookah pipeline is formed between the smoke pan head and the suction nozzle; the smoke pan head is made of heat-resistant halogen-free flame-resistant silicone rubber and consists of a base, a smoke pan and a cap body; a plurality of smoke outlet holes are formed in the cap body; an opening is formed in the lower part of the cap body; a concave cavity for containing cigarette tobaccos is formed between the inner wall of the smoke pan and the outer wall of the cap body; a smoke cavity is formed in the base and is communicated with the concave cavity through a plurality of smoke outlet holes; the bottom of the smoke cavity is a taper with a small upper part and a large lower part. The smoke pan head is made of the heat-resistant halogen-free flame-resistant silicone rubber, is breakage-proof, has good handfeel and can meet a requirement on heat resistance; the service life of the smoke pan head can be prolonged; the bottom of the smoke cavity is the taper with the small upper part and the large lower part, so that the smoke cavity is conveniently connected with the smoke pipes with different sizes, and the smoke pipe and the smoke cavity are tightly connected during connection, so that air leakage can be avoided.

The invention relates to heat-resistant concrete. The heat-resistant concrete is prepared by using fly ash ceramsite as a coarse aggregate and blast furnace water quenched slag as a fine aggregate. The heat-resistant concrete can fully replace igneous rock coarse and fine aggregates to prepare the heat-resistant concrete in the prior art. Detected indexes fit various performance indexes required by the heat-resistant concrete.

The invention relates to a cable core of carbon fiber composites. The cable core of the carbon fiber composites comprises a bearing core (12) and a protective layer (13), and the protective layer (13) covers the outer portion of the bearing core (12) through a winding process. The cable core is characterized in that the bearing core (12) is the composite of epoxy resin and carbon fibers, wherein the epoxy resin is heat resisting and high in mechanical property, and the protective layer (13) is the composite of epoxy resin and glass fibers, wherein the epoxy resin is high temperature resisting and weather resisting. Due to the fact that the bearing core and the protective layer are chosen to be different epoxy resin systems, the high mechanical property of the epoxy resin system of the bearing core cannot be influenced by the epoxy resin system of the outer protective layer, the good weather resisting property of the outer protective layer protects the bearing core from being damaged by outer environment, and the combination property of the cable core is greatly improved.

The invention provides an anticorrosion high temperature resistant and flame-retardant nylon composite material and a preparation method thereof. The composite material includes: 30-90 parts of high temperature resistant nylon, 0-60 parts of reinforcement fiber, 5-30 parts of a brominated flame retardant, 1-10 parts of zinc borate, 0.1-8 parts of silicon powder, 0.1-0.8 part of an antioxidant, and0.1-0.8 part of a lubricant. The method includes: mixing dry high temperature resistant nylon, the brominated flame retardant, zinc borate, silicon powder, the antioxidant and the lubricant to obtaina mixture; adding the mixture into a twin-screw extruder from a main feed port, adding the reinforcement fiber into the twin-screw extruder from a side feed port, and conducting drawing, cooling, grain cutting and drying, thus obtaining the anticorrosion high temperature resistant and flame-retardant nylon composite material. The anticorrosion high temperature resistant and flame-retardant nyloncomposite material provided by the invention has a high comparative tracking index, and can avoid generation of methane gas at high temperature, thus reducing corrosion of a mold surface.

The invention relates to a manufacture method of a cable core. The manufacture cost of the cable core comprises the following steps: carbon fibers are led out of a creel, gum dipping is carried out to the carbon fibers after entering a first gum dipping area, and used epoxy resin is epoxy resin with heat-resisting high mechanical property; the carbon fibers after gum dipping enter a first curing oven to be precured, carbon fiber composite core are manufactured, the diameter of each carbon fiber composite core is 5mm to 12mm, and a curing degree reaches more than 85% by adjusting temperature; glass fibers on two sides are led out and respectively enter a second gum dipping area and a third gum dipping area, and used epoxy resin is high temperature resistant and weather resistant; the glass fibers after gum dipping pass through a winding area and are wound and cover the outer layers of the carbon fiber cores, the thickness of single side is 0.5mm to 2mm, and winding speed is synchronous with pultrusion speed by being controlled by a servo motor; and the carbon fiber composite cores and the glass fiber protective layers pass through the second curing oven after being compounded, and are fully cured by adjusting temperature. Composite material cable core products pass through a dragger and are wound up on the position of a winding disc.

The invention discloses a dispensing insulation paper suitable for wind power and solar transformers, and an application thereof. The dispensing insulation paper comprises a first heatproof insulationpaper, a middle layer formed by a polyimide film and a second heatproof insulation paper which are sequentially stacked, the first insulation paper and the middle layer are bonded through an adhesive, and the second insulation paper and the middle layer are bonded through the adhesive, wherein the adhesive is a composite adhesive, and the composite adhesive includes a PU adhesive and an epoxy adhesive, and a mass ratio of the PU adhesive to the epoxy adhesive is (8-10):1; the epoxy adhesive includes modified epoxy resin and an epoxy resin curing agent according to a mass ratio is (4-8):1; andthe modified epoxy resin comprises liquid epoxy resin and solid epoxy resin according to a mass ratio of (0.5-2):1, and the adhesive is dispensed on the outer surfaces of the first and second heatproof insulation papers. The invention also discloses the application of the dispensing insulation paper in the wind power transformers and solar transformers. The dispensing insulation paper has the advantages of high heatproof grade, good mechanical strength and good breakdown voltage, and is extremely suitable for the interlayer insulation of the wind power and solar transformers.

The invention discloses a liquid organic silicon-doped hexagonal boron nitride material and its automatic preparation and industrial application methods. The material is composed of component A composed of vinyl silicone oil, surface-activated hexagonal boron nitride, inhibitor and catalyst, and group B composed of vinyl silicone oil, hydrogen-containing silicone oil and surface-activated hexagonal boron nitride grouped. Its automatic preparation and industrial application method, the steps are as follows: 1) A and B components are automatically transported and mixed, and then enter the precision injection system; 2) At the same time, the silver-plated stone black ene composite metal sheet is automatically transported to the mold setting 3) Then after glue injection, curing, wrapping, slicing, chip sticking, gold wire connection, potting glue potting, it is transformed into components such as LED light source and IC patch. The liquid organic silicon-doped hexagonal boron nitride material prepared by the invention has excellent characteristics such as high and low temperature resistance, high molding efficiency, good sealing performance, and low cost, and can be widely used in various fields of optoelectronic components.

The invention discloses an epoxy resin composition for a high heat-resisting aluminum substrate as well as a preparation method and application of the epoxy resin composition. The epoxy resin composition for the high heat-resisting aluminum substrate is prepared from the following raw material components in parts by weight: 55 to 65 parts of phenolicepoxy resin, 20 to 24 parts of phenolic resin and 17 to 21 parts of a diluent. An LED (Light-Emitting Diode) aluminum substrate circuit board prepared by the epoxy resin composition for the high heat-resisting aluminum substrate has the advantagesof higher heat resistance, and the capabilities of meeting the requirement of welding processing on heat resistance and ensuring the reliability of welding.

The invention discloses an easy-to-spray high-rigidity alloy material and a preparation method thereof, and relates to the technical field of high polymer materials. The alloy material is prepared from the following components in parts by weight: 5 to 30 parts of aromatic polyester, 20 to 70 parts of polycarbonate, 5 to 30 parts of a styrene-acrylonitrile copolymer, 2 to 8 parts of a flexibilizer, 10 to 30 parts of a filler, 0.5 to 2 parts of a heat stabilizer, 1 part of a coloring agent, 0.4 to 1 part of an antioxidant, 0.2 to 0.5 part of a lubricant and 0.1 to 0.5 part of an ester exchange inhibitor. The easy-to-spray high-rigidity alloy composition provided by the invention has the characteristics of high flowability, high rigidity, good dimensional stability, low linear expansion coefficient, corrosion resistance and easy spraying; the alloy material is especially suitable for replacing a metal material to be applied to the field of interior and exterior decoration coating with high strength requirements, such as skylight decoration strips, and also has a good application effect in the field of frameworks with high requirements for material rigidity and dimensional stability.

The invention relates to a polyamide resin as well as a preparation method and application thereof. The polyamide resin comprises an aliphatic polyamide molecular chain segment, wherein an aromatic imide unit and an aromatic amide unit are embedded into the aliphatic polyamide molecular chain segment. The polyamide resin is prepared by controlling polymerization reaction conditions together with precipitation, cleaning and drying treatment. The polyamide resin provided by the invention is low in polymerization reaction temperature, easy in reaction process control and applicable to large-scaleproduction and application. The product has very good thermal resistance, and is capable of meeting requirements of electronic and electrical reflow soldering (SMT) processes and automobile engine accessories on thermal resistance of plastic products.

The invention relates to the technical field of heat stabilizer preparation, in particular to a colorless and odorless environment-friendly liquid stabilizer for a transparent hose. The liquid stabilizer comprises the following components in parts by weight: 30-40 parts of a D80 solvent, 5-15 parts of fatty acid, 5-15 parts of aromatic acid, 1-5 parts of zinc oxide, 5-10 parts of calcium hydroxide, 1-5 parts of an antioxidant, 20-30 parts of an auxiliary stabilizer and 1-5 parts of an odor masking agent. Compared with a traditional liquid stabilizer, the liquid stabilizer prepared through preferable material is basically colorless and transparent, meanwhile, the heat-resistant requirement of transparent hose processing is met, activated carbon is introduced for deodorization, a proper amount of smell masking agent is added, so that the liquid stabilizer has less pungent odor, and greenness of the production process and the processed finished product is ensured.

The invention discloses a production method and production equipment of PLA heat-resistant suction pipes. The production method comprises the following steps: heating a PLA material until the PLA material is molten, and conveying the molten PLA material into a shaping pipe; introducing hot air into the shaping pipe, making the PLA material blown up in the shaping pipe through the hot air, and forming the PLA heat-resisting suction pipe after the PLA material is crystallized and shaped; and cooling the PLA heat-resistant suction pipe, and performing traction cutting on the cooled PLA heat-resistant suction pipe. According to the invention, the hot air is introduced into the shaping pipe, the hot air is utilized to blow up the PLA material in the shaping pipe, and the PLA heat-resistant suction pipe is formed after crystallization and shaping, so that the scheme that in the prior art, cold air is utilized to blow up and shape and then post-crystallization is carried out is changed, and the requirements of food contact safety and appearance quality can be met on the basis of simple process and better cost control.