305results about How to "With high temperature resistance" patented technology

The invention discloses a preparation method of a graphene composite conductive fiber and relates to the technical field of graphene. The method comprises the following steps: processing a common textile polymer fiber with an organic solvent to remove impurities such as an oiling agent on the fiber surface; dipping the textile polymer fiber into an alkali liquor and an oxidized graphene solution, and enabling the fiber surface to fully contact the oxidized graphene; and dipping the dried fiber with an oxidized graphene coating into a solution containing a reducing agent to obtain the graphene composite conductive fiber. By adopting a simple dip coating method, the obtained composite fiber has mechanical property, high temperature resistance and flexibility performance of a traditional high polymer material and also has good conductivity. The method is easy to operate, environment-friendly and convenient to industrialize.

The invention provides a multi-element synergic plugging agent and application thereof. The multi-element synergic plugging agent comprises the component 1 or the component 2, wherein the component 1 comprises the following components in parts by weight: 40-50 parts of rigid particles, 15-20 parts of a flexible material, 15-20 parts of an ultrafine filling material, and 15-20 parts of an expansive type polymer: the component 2 comprises the following components in parts by weight: 50-70 parts of rigid particles, 10-25 parts of a flexible material, 10-25 parts of an ultrafine filling material, and 10-30 parts of an expansive type polymer. The multi-element synergic plugging agent disclosed by the invention combines the rigid material with the flexible material, incorporates the elastoplasticity, fully utilizes the synergistic function of the materials, can effectively plug the cracks with different widths, has the performances of high bearing strength, high temperature resistance, deformability and strong binding powder of the cracked stratum, and can be applied to the leaking stoppage operation for the drilling engineering to solve the leakage problem at different degrees.

The invention provides a fiber-reinforced polypropylene material and an application of pipelines made from the fiber-reinforced polypropylene material. The fiber-reinforced polypropylene material is characterized by comprising polypropylene resin, fiber, crystal whisker, an inorganic particle, elastomer, a lubricant, an antioxidant and a coupling agent, wherein the fiber is one or more of glass fiber, carbon fiber and basalt fiber; the crystal whisker is one or more of silicon carbide crystal whisker, potassium titanate crystal whisker and aluminum oxide crystal whisker; the organic particle is one or more of SEBS (Styrene-Ethylene-Butylene-Styrene), POE (polyolefin elastomer), EVA (Ethylene/vinyl acetate) and EPDM (Ethylene-Propylene-Diene Monomer); the lubricant is one or more of calcium stearate, zinc stearate, stearic acid and a lubricant TAF; the antioxidant is hindered phenol antioxidant 1010; the coupling agent is one of a silane coupling agent, a titanate coupling agent and an aluminic acid ester coupling. The fiber-reinforced polypropylene material has the advantages of high-pressure resistance, high-temperature resistance, high corrosion resistance, high stretch resistance, high impact resistance, low coefficient of linear expansion, moderate heat conductivity coefficient, long service life and the like.

The invention provides an aroma massage magnet therapy moxibustion rod which comprises a moxibustion head component, a connection component, a screw joint, an outer pipe, an inner pipe, a swath shrinking clamp component, a thrusting component, a push button and a sealing cover, wherein the moxibustion head component comprises a moxibustion head which is internally provided with a magnetic ring; the moxibustion head component and the connection component are magnetically connected, and the magnetic connection enables the moxibustion head component and the connection component to be simultaneously rolled and plugged; the connection component is connected with the upper part of the screw joint through threads; the lower part of the screw joint is connected with the upper end of the outer pipe through a thread; the swath shrinking clamp component and the thrusting component are tightly matched and connected; the push button passes through a vertical elongated push button slide way hole on the wall of the outer pipe and a vertical elongated push button slide way hole on the wall of the inner pipe and is connected with the thrusting component. The aroma massage magnet therapy moxibustion rod realizes safety, small size, simplicity, convenience and multiple functions, saves swaths and has inimitable advantages compared with the same products of the prior art.

The invention discloses a coil for a stainless steel framed Nb3Sn superconducting solenoid. The coil adopts the structure that a coil frame is made of non-magnetic stainless steel materials and comprises straight tubular core tube and end plates; heat conduction layers and alumina ceramic coating layers are both arranged on the outer surface of the core tube and the inner sides of the end plates, and the heat conduction layers are arranged between the alumina ceramic coating layers and the coil frame; the Nb3Sn superconducting coils are wound outside the ceramic coating layers; a composite binding layer is arranged at the outermost layer of each superconducting coil, and a piece of high-temperature resistant non-alkali fiberglass cloth serves as the inner layer of the composite binding layer, and the outer layer is a non-magnetic stainless steel wire; solidification packing material is fully filled in the gaps among the superconducting coils in a vacuum impregnation manner; through holes are uniformly formed on the coil frame; and ceramic insulation sleeves are installed in the wire-inlet/wire-outlet of the coil frame end plates, and the Nb3Sn superconducting coils pass through the ceramic insulation sleeves to lead outside the coil frame, wherein the ceramic insulation sleeves adopt a similar T-shaped hollow cylindrical structure, and are used for separating and locating the Nb3Sn superconducting coils and the coil frame, so as to maintain the electric insulation.

The invention discloses an ethylenediamine perchlorate.triethylene diamine perchlorate eutectic initiating explosive and a preparation method thereof. The initiating explosive is a eutectic compound of ethylenediamine perchlorate and triethylene diamine perchlorate, can be initiated under the action of outside excitation energy and has better explosion output power. The preparation method is as follows: the eutectic compound of the ethylenediamine perchlorate and the triethylene diamine perchlorate is prepared by the neutralization reaction through using ethylene, triethylene diamine and perchloric acid as raw materials under the solution state, wherein the molecular ratio of the ethylenediamine perchlorate and the triethylene diamine perchlorate in the prepared eutectic compound is 1:1. The invention has the advantages of small moisture absorption, large explosion power, simple manufacture process, energy saving, consumption reduction, and no harm to environment.

The invention discloses a combined automatic stair-climbing fire-extinguishing smoke-discharging robot, which comprises a crawler-type automatic traveling chassis, a combined fire-extinguishing smoke-discharging device, an emergency injection self-protection device, and a control and image transmission system, wherein the crawler-type automatic traveling chassis is used as a carrier, the combined fire-extinguishing smoke-discharging device, the emergency injection self-protection device and the control and image transmission system are installed on the crawler-type automatic traveling chassis; the crawler-type automatic traveling chassis comprises a storage battery, a support chassis, a crawler drive system and a stable and dumping-proof mechanism, the storage battery for supplying the power to the combined fire-extinguishing smoke-discharging device, the emergency injection self-protection device and the control and image transmission system is installed on the support chassis. The combined automatic stair-climbing fire-extinguishing smoke-discharging robot has large air output, is capable of climbing the stairs, has the functions of self-protection, decontamination and neutralizing the toxic gas, and can meet the requirement for the blast air in different environments of fire extinguishing and emergency rescue.

The invention provides a multi-layer noise elimination/vibration reduction structure and a method for manufacturing the noise elimination/vibration reduction structure through the 3D printing technology, and relates to the field of material increase manufacture, vibration reduction and noise elimination. The multi-layer noise elimination/vibration reduction structure aims at solving the problem that a conventional noise elimination/vibration reduction structure material is narrow in application field. The noise elimination/vibration reduction structure is made from a metal base material. Except a base plate, micropores are formed in other components. Each layer of longitudinal partition plates are distributed between two side plates at equal intervals. Transverse partition plates are arranged between every two adjacent layers of longitudinal partition plates, and the height and width of a formed multi-layer cavity each change in a gradient mode. The method includes the steps of firstly, designing the size of the noise elimination/vibration reduction structure through computer simulation software according to actual working conditions; secondly, depositing molten powder on the surface of the base plate through the 3D printing technology, and printing the side plates, the longitudinal partition plates and the transverse partition plates. The noise elimination/vibration reduction structure is wide in application range and is formed at a time through 3D printing. The noise elimination/vibration reduction structure and the method are suitable for various fields of construction, navigation, aircrafts, power devices, transportation means and the like.

The invention discloses electrothermal insulation and decoration integrated wall and floor tiles and a preparation method thereof. The method comprises the steps of sequentially distributing a tile matrix layer mixture (prepared from the following components: clay, quartz, feldspar and pigment), a non-metallic conductive layer mixture (prepared from the following components: a carbonaceous material, clay, an iron material and feldspar), and a foamed ceramic insulating layer mixture (prepared from the following components: solid wastes, feldspar, clay and a foaming agent); pressing into green bodies by using a press, drying the green bodies, and then firing the dried green bodies in a kiln at the high temperature. The wall and floor tiles have the advantages of being low in thermal loss energy consumption, having an electrothermal efficiency reaching up to 99%, and being convenient in construction, and can lower the construction and use costs to a certain extent.

The invention relates to a wearproof rubber material which is composed of a component A layer and a component B layer, wherein the component A layer is formed by organically bonding butadiene styrene rubber, butadiene rubber, carbon nanofibers and an organic silicon composition; the component B layer is formed by bonding chloroprene rubber, organic isoprene rubber, polybutadiene rubber, brominated butyl rubber and ethylene-propylene-diene monomer rubber, wherein the organic bonding mode is carried out via a high-temperature polymerization method, wherein the molar ratio of the butadiene styrene rubber to the butadiene rubber to the organic silicon composition is 2 to 1.5 to 3; and the molar ratio of the chloroprene rubber to the organic isoprene rubber to the polybutadiene rubber to the brominated butyl rubber to the ethylene-propylene-diene monomer rubber to natural rubber is 3 to 2.5 to 3.5 to 2.5. Based on a high-temperature polymerization mode, an insulated rubber layer and a wearproof rubber layer which are composed of multiple materials are polymerized at a high temperature so as to serve as a material of the insulated rubber layer, so that the wearproof rubber material has a relatively high insulating capacity and has the properties of wear resistance, aging resistance and high-temperature resistance.

The invention belongs to the technical fields of high-molecular material processing and modification, and relates to a polyphenylene sulfide/semi-aromatic nylon composite material and a preparation method thereof. The composite material is prepared by using the following components, by weight, 50-70 parts of polyphenylene sulfide, 40-60 parts of semi-aromatic nylon, 10-30 parts of a glass fiber, 10-20 parts of an inorganic mineral filler, 1-15 parts of a compatilizer, 0.5-2 parts of an antioxidant and 1-3 parts of a lubricant. The material disclosed in that invention has the advantages of low molding shrinkage, good dimension stability, high toughness, excellent high temperature resistance and the like.

The invention relates to a method for preparing conduction meta-position aramid fibers. The method mainly comprises the following steps: (1) treating conduction components; (2) adding the conduction components, a solvent and a dispersing agent into high-speed mixing equipment in proportion, controlling the temperature by 50-80 DEG C, and fully mixing; and then grinding to reach the reasonable size, wherein the maximum size is below 200 nanometer; (3) adding the ground conduction component solution into a polymer solution, fully and uniformly mixing, and then cooling and deaerating to obtain a conduction fiber spinning solution; and (4) adopting a wet spinning process, carrying out solidification, drawing, washing and heat treating, and finally obtaining the meta-position aramid fibers with conductivity. The conduction meta-position aramid fibers prepared by the method has the good performances of meta-position aramid such as intrinsic inflaming retarding, high temperature resistance, size stability, spinnability and the like and meanwhile has the good conductivity of the resistivity (104-105) omega.cm.

The invention provides a high-elasticity thin film which includes 90-110 parts of PVC resin, 20-50 parts of rubber powder, 10-90 parts of a filling material, 0.5-8 parts of a stabilizer, 55-120 parts of a plasticizer and 0-2 parts of a pigment. The rubber powder includes nitrile butadiene rubber powder and butyl rubber powder according to the mass ratio of (4-6):(1-3). The invention also provides a preparation method of the high-elasticity thin film. By means of optimization on component proportion, the thin film is high in elasticity, high in hardness, high in tensile strength and good in rebound property, has the performances of being insulating and anti-static, being good in sealing performance and weather resistance, and being resistant against acid, alkali and high temperature. The thin film not only can be used in electronic products but also has great application prospect in the fields of machinery and aerospace technology. The high-elasticity thin film is greatly reduced in cost, breaks technical monopoly of foreign products, and filling the technical blank of domestic high-strength and high-elasticity thin films.

The invention discloses a composite material safety toe cap which is formed by bonding and pressing multiple layers of glass fiber cloth coated with resin paste, wherein the resin paste comprises polyester resin, an initiator, a low-shrink additive, an inner release agent, a thickener and a crosslinking agent; and the invention also discloses a method for manufacturing the composite material safety toe cap. The formula of the composite material safety toe cap provided by the invention is scientific and reasonable in design, has good mechanical performance and high strength, greatly enhances the impact resistance, effectively avoids the phenomena that the foot of a user kicks a foreign object or is bruised by the falling foreign object and the toes are injured, and realizes high safety; the composite material safety toe cap has the advantages of corrosion resistance, high temperature resistance, cold resistance, acid resistance and the like, and the service life is greatly prolonged; and the composite material safety toe cap can pass the International test standards such as European Union EN12568-S, Canada CSA-Z195 and the United States ASTM-F2413 and the like. The method provided by the invention has a simple manufacturing technology, is easy to realize and can quickly produce a composite material safety toe cap.