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

The invention discloses a dual-curing coating. The coating contains ultraviolet curing resin monomers, a low polymer, a photo-initiator, polymer resins, an adjuvant and an organic solvent. In the invention, the dual-curing coating is prepared by synergistic copolymerization of an ultraviolet curing coating system and a solvent-based polymer system. The preparation method of the coating comprises the following steps: firstly thermocuring, and then processing information layers and photocuring at the same time; or firstly photocuring, then processing the information layers, and finally heating with an oven or infrared-heating for further cross-linking curing. Therefore, the dual-curing coating has better comprehensive performances such as fast curing speed, small film-coating cure shrinkage and high crosslinking density so as to achieve the characteristics of chemical corrosion resistance, strong wear resistance, strong high temperature resistance, excellent flexibitity, excellent adhesive force and the like; and the coating can be used for laser anti-counterfeit marks of plastics, cosmetic preparations, ceramic materials, glass, paper, leather, wooden products and metal products as well as production of pigment preparations and the like.

The invention discloses an electrothermal composite ceramic brick and a preparation method thereof. An electrothermal coating layer, a guiding-out wiring electrode, a coating insulation packaging waterproof layer and an application foaming ceramic layer coat an unglazed surface of a ceramics substrate in order. The electrothermal coating layer coats the unglazed surface of the ceramics substrate in an electrothermal slurry form, the electrothermal slurry permeates the green body of the ceramics substrate, and the penetration depth is less than the thickness of the ceramics substrate and more than 0.5mm. Because of the penetration, the electrothermal coating layer of the electrothermal composite ceramic brick is combined with the ceramics substrate tightly, a surface heating mode is achieved, the thermal efficiency is high, normal and safe usage can be achieved under a voltage of 24-380V, the heating power is 90-120w / m<2>, and the temperature of the ceramics substrate can reach 18-50 DEG C through a temperature control device. The insulation packaging waterproof layer and the foaming ceramic layer outside the electrothermal coating layer can prevent heat from outward transmission effectively, heat loss is lowered, and the whole safety and reliability of the ceramic brick are raised.

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 discloses magnetic aerogel and a preparation method thereof. The preparation method comprises the following steps: loading ferroferric oxide magnetic nanoparticles by taking graphene oxide as a carrier, improving the morphological stability by taking a carbon nano tube as a framework or by using a calcium ion cross-linking effect, freezing and drying to obtain graphene oxide magnetic aerogel, and performing chemical reduction so as to obtain the graphene magnetic aerogel. On the basis of maintaining the ferroferric oxide magnetic effect, the aerogel also has the advantages of low density, great strength, high-temperature resistance and large specific surface area; due to the structure characteristic, the aerogel has the super strong absorption capacity, wave absorption capacity and conductivity; the magnetic aerogel can be used in the fields of sewage treatment, target administration, wave absorption materials and photoelectric materials. The magnetic aerogel is a novel functional magnetic material.

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 relates to an acoustic logging-while-drilling transmitting unit and a device thereof. The transmitting unit comprises a drill collar chisel groove (17), a transmitting transducer (9) and an acoustic window (19), wherein the drill collar chisel groove (17) is provided with a step; the transmitting transducer (9) is arranged on the step and is used for generating acoustic waves; the acoustic window (19) is arranged on the transmitting transducer (9); the acoustic window (19) and the transmitting transducer (9) form a cavity; oil is injected into the cavity to form a liquid cavity; and the acoustic waves generated by the transmitting transducer (9) are transmitted outwards through the liquid cavity. The multi-pole acoustic logging-while-drilling transmitting device has the advantages of high temperature resistance, high pressure resistance, vibration resistance, small size, easiness in assembly, good insulation and sealing and the like.

The invention provides a preparation method for SiC particle reinforced aluminum-based composite material. The preparation method comprises the steps as follows: step 1, the Al-Si-Mg alloy is placed into a homemade dry pot resistance furnace, after the Al-Si-Mg alloy is completely melted, 1-17 parts of intermediate alloy Al-R by weight, which is prepared in advance, is added into the melt, wherein the intermediate alloy is prepared in advance through a surface modification technology; step 2, the melt is stirred to enable rare-earth elements to be uniformly distributed into the melt; step 3, SiC is added into the melt; step 4, the melt is poured into a metal mould for formation; step 5, quenching is performed in water with the temperature of 50-60 DEG C; step 6, quenching is performed in water with the temperature of 70-80 DEG C; step 7, air cooling is performed after aging thermal insulation is performed for 6.5-7.5 h at the temperature of 165-175 DEG C. The thermal shock performance of the aluminum-based composite material can be greatly enhanced, the dimensional stability of the material is maintained when the material is used in temperature varying places, the service life of the material is prolonged, and the material has a broad market prospect when being applied to parts requiring weight reduction and excellent abrasion resistance.

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 provides a 150-DEG C high-strength high-electric-property oil-resistant irradiation crosslinking halogen-free flame retardant environment-friendly polyolefin cable material which is applied to the products such as an electric equipment wire, a motor lead wire, an oil platform cable, a photovoltaic cable, a marine cable, an automobile wire and a rolling stock cable. The cable material is prepared from the following raw materials: ethylene-propylene-diene monomer, high-density polyethylene, metallocene polyethylene, methyl vinyl silicone rubber, nitrile silicone rubber, a sensitizer, a halogen-free flame retardant, an antismoke agent, an anti-aging agent, an antioxidant, a lubricant, a softener, an active agent, white carbon black, talcum powder and a coloring agent. The polyolefin cable material provided by the invention has good comprehensive performance in high-temperature resistance, wear resistance, high electric property, oil resistance, high strength, low smoke, no halogen, good fluidity and the like; and the environment-friendly performance meets the requirements of electric wires and cables.

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 belongs to the technical field of membrane materials of chemical power sources or chemical energy storage elements and discloses a membrane which has high size stability and is compounded by a polyolefin porous membrane and aramid nano-fibers, a compounding method of the membrane and application of the membrane to a lithium ion battery or other chemical energy storage elements. The compounding method comprises the following steps: introducing positive charges to the surface of the polyolefin porous membrane, soaking the polyolefin porous membrane with aramid nano-fiber dispersion liquid, taking out the polyolefin porous membrane, washing and drying, and soaking, washing and drying in a cyclic manner to obtain the compound membrane with a plurality of layers of aramid nano-fibers which are adsorbed on the surface of the polyolefin porous membrane. The compound membrane has low-temperature pore-closing property and high-temperature resistance and is suitable for electrochemical devices working at relatively high temperature; the compound membrane has relatively high ionic conductivity; the bonding force between the aramid nano-fibers and the polyolefin porous membrane is improved; the aramid nano-fibers are unlikely to be peeled from the polyolefin porous membrane in charging and discharging cycles; the interface resistance is unlikely to be increased along with the increase of the battery cycle number, so that the cycle performance of the battery is improved.

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 light-fast auto membrane. The light-fast auto membrane comprises the following components by mass: 100 parts of PVC, 20-30 parts of an elasticizer DOP, 2.5-3.5 parts of a barium-zinc compound stabilizer, 5-25 parts of a nano filler; 0.5-1.0 part of an anti-UV531, 1.0-2.0 parts of an accelerant ACR, 0.1-1 part of an antioxidant CB, 8-15 parts of rutile-type titanium dioxide and 0.01-0.05 part of a pigment. The light-fast auto membrane has the characteristics of thermal insulation, ultraviolet resistance and high-temperature resistance, and is low in manufacturing cost.

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 discloses a sugarcane peeling and cutting machine with ceramic blades. The sugarcane peeling and cutting machine comprises a rack, wherein a peeling mechanism and a cutting mechanism arearranged on the rack; a plurality of cutter rests which are distributed in a polygon shape are arranged on the side surface, perpendicular to the sugarcane feeding direction, of the peeling mechanism; peeling blades are installed on one sides wherein the sugarcane is arranged of the cutter rests, and elastic supporting structures are arranged on back sides of the cutter rests so that the peelingblades can abut against the surface of the sugarcane; the cutting mechanism is a crank sliding block mechanism; a crank in the crank sliding block mechanism is driven by a first motor, and a sliding block is arranged in a sliding groove of the rack; and when the first motor drives the crank to rotate, a cutting blade moves up and down in the sliding groove of the rack so as to cut off the sugarcane. According to the technical scheme of the peeling and cutting machine, automatic peeling and cutting of the sugarcane can be realized, the defects of manual peeling and cutting are overcome, such astime and labor are wasted, efficiency is low, and waste is caused by uneven peeling thickness.

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 discloses porous ceramic with good drainage performance and a manufacturing process. The porous ceramic employs silicon carbide, pottery clay, mullite, and iolite as aggregates; wollastonite and spodumene are used as auxiliary materials, and low temperature ceramic glaze powder is used as a fluxing agent; bamboo charcoal and wood chip are used as pore forming agents; the raw materials are prepared according to a certain proportion, paraffin is used as a binder for preparing a slurry, a hot pressure casting and forming machine is used for preparing green compacts, and one-time wax discharging and sintering are carried out by a kiln in order to obtain finished products. Compared with prior art, the product has the functions of common porous ceramics, such as filtering, heat insulation, noise abatement and the like, and the product is characterized in that the product has liquid drainage, penetration, adsorption and fine filtering and other excellent functions, and at the same time, the product has high temperature resistance, quenching and quick heating resistance, and good thermal conductivity; in addition, the common ceramic raw materials are selected, and the porous ceramic has the advantages of low energy consumption, environmental protection without secondary pollution, low cost, and simple technology, and the ceramic is suitable for large scale production. The porous ceramic has wide applications and extremely good development prospects.

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 provides an ultra-wideband intermediate infrared band perfect wave absorber and a preparation method thereof. The ultra-wideband intermediate infrared band perfect wave absorber is sequentially composed of a flat metal film layer, a flat dielectric film layer, a metal nanocube array and a dielectric nanocube array from bottom to top. The metal can be chromium, titanium, nickel, tungsten and the like, and the dielectric medium can be aluminum oxide, silicon dioxide, magnesium fluoride, zinc oxide and the like. The absorber is simple and mature in process preparation, can realize perfect absorption from a near-infrared band to a intermediate infrared band, and has the characteristics of wide absorption band, high absorption efficiency, insensitive angle and good thermal stability.

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.

The invention discloses a base geopolymer binding agent. At present, a binding agent for a fire-proof door has volatile gas and free formaldehyde, has toxic and harmful substances which exceed the standard seriously, is poor in high-temperature-resistant performance, inflammable, non-water-resistant and poor in temperature variation stability, and is extremely easy to dissolve, scatter and expand. The base geopolymer binding agent is prepared from the following raw materials in parts by weight: 95-105 parts of sodium water glass, 15-35 parts of mineral waste residues, 3-6 parts of calcium carbonate, 8-15 parts of quick lime, 8-15 parts of metakaolin, 0.5-1 part of aluminum triphosphate, 0.5-2 parts of retarder and 1-2 parts of emulsion; the raw materials are stirred and cured to obtain the base geopolymer binding agent. The base geopolymer binding agent disclosed by the invention does not need to add a curing agent, does not need hot-press curing, has the advantages of high strength, chemical corrosion resistance, water resistance, high temperature resistance, durability and the like, also has good flame-retardant and heat-insulation effects, is extremely strong in water resistance, does not have water absorption and swelling phenomenon, and can reach a fireproofing grade of grade A. By virtue of detection, the prepared binding agent disclosed by the invention has a binding strength of more than or equal to 5mPa, is non-inflammable, does not absorb water and moisture, and is non-toxic and harmless.

The invention discloses a method for modifying a membrane material in a membrane bioreactor in the field of sewage treatment, which comprises the following steps: preparing membrane liquid by using polyvinylidene fluoride as the membrane material, using polyvinylpyrrolidone as a porogen, using N-Methyl-2-pyrrolidinone as an organic solvent, using sodium hexametaphosphate as a dispersing agent and using deionized water with the temperature of 25 DEG C as coagulating bath, heating the membrane liquid to the temperature of 50 DEG C and carrying out deaeration for 30 minutes under the vacuum condition of minus 50kPa after stirring so as to form uniform cast membrane liquid; uniformly adding nano TiO2 particles into the cast membrane liquid to prepare an organic-inorganic hybrid membrane by a blending method through adopting an L-S phase conversion method, wherein the added nano TiO2 particles account for 3 to 5 percent by weight of the polyvinylidene fluoride; and preparing the organic-inorganic hybrid membrane into a flat membrane or a hollow fiber membrane. The modified membrane shows obvious hydrophilcity, has excellent membrane flux and membrane separation performance and can effectively improve the problem of membrane pollution in the membrane bioreactor.

The invention relates to haemodialysis solution and the closed soft package bag. The haemodialysis is characterized in that the haemodialysis solution comprises independent closed softly packaged concentrated solution A and B; the concentrated solution A and B are diluted into isotonic hermodialysis solution by a dialysis machine and dialysis water according to proportion. The closed soft package bag is characterized in that the closed soft package bag comprises a soft bag body and a stream guidance tube which is integrally connected with the soft bag; the upper end of the stream guidance tube is provided with a connecting head communicated with the dialysis machine; the soft bag body and the stream guidance tube can be pressed and molded by nontoxic polyvinyl chloride, or nontoxic polyethylene, or nontoxic polypropylene, or nontoxic complex film, or nontoxic aluminum foil. The invention can prevent problems existing between supply and demand and can satisfy the patients with various dialysis demands; the closed soft package bag adopts various complex film and aluminum foil to be made into dialysis solution adopting package bag with high temperature resisting function, tensile resistance and pressing resistance, thereby having the effect of wide application range.

The invention discloses a ceramic hanger for a bathroom and a manufacturing process of the ceramic hanger. The ceramic hanger comprises two bases and one or more hanging rods, the bases are fixed on a wall, rotation stopping portions are formed at two ends of each hanging rod, and the bases are provided with positioning holes matched with the rotation stopping portions. Ceramic is adopted as a raw material, and the surface of the ceramic is glazed, so that the surface of the ceramic hanger formed after high-temperature sintering is round and exquisite in texture, the glazed surface is smooth and bright, and the ceramic hanger is less prone to dirt adhesion, easy to clean, less prone to corrosion and oxidization, convenient and easy to maintain and long in service life.

The invention relates to a trainman auxiliary monitoring system, which comprises a camera part, a switching control host computer and a display unit, wherein the camera part is mainly used for shooting image signals of a monitor area; the switching control host computer is mainly used for supplying power to each part of the system first, and then performing video allocation on the image signals of the front camera, inputting the image signals into a switcher for switching and transmitting the image signals to the display unit for displaying, and switching commands are sent by a switching controller of the switching control host computer; and the camera is a high temperature resistant camera provided with a refrigeration system on the outer part, the refrigeration system consists of a radiator fan, a cooling fin, a semiconductor refrigeration piece and a heat conductive piece. The system is also provided with an auxiliary light source device and can perform visual monitoring on the running conditions of devices of a locomotive day and night in the running process of the locomotive, so that the trainman can know the running conditions of the devices in the locomotive without leaving a navigation bridge; besides, the system has a simple and convenient operating method and has obvious cost advantage.