297results about How to "Has a lubricating effect" patented technology

The invention relates to a preparation method of a graphene / metal composite panel. The preparation method comprises the steps of firstly uniformly mixing a monodispersed graphene solution with a polyvinyl alcohol solution to prepare graphene / polyvinyl alcohol mixed slurry, spraying the graphene / polyvinyl alcohol mixed slurry to the upper and lower surfaces of a plurality of metal panels, heating to remove polyvinyl alcohol in a coating, and finally laminating the metal panels to prepare the graphene / metal composite panel in a hot rolling manner. The preparation method has the beneficial effects that by compositing the graphene / polyvinyl alcohol mixed slurry with the metal panels, the dispersity of graphene can be guaranteed; by utilizing a hot rolling process, the graphene can be beneficially dispersed into matrixes of the panels so as to play a strengthening effect; the molecular association between the graphene and the metal panels is realized in the premise of well preserving intrinsic physical properties of the graphene and a metal material; the process is simple, the large-batch and large-size graphene composite panels are easily prepared, the production cost is lowered, and the preparation method has excellent engineering application prospects in the fields of light armor materials, aviation, spaceflight and the like.

The invention discloses a modified epoxy resin anticorrosive paint which is prepared from the following raw materials in parts by weight: 40-55 parts of a modified epoxy resin, 3-10 parts of a polystyrene rubber, 5-18 parts of mica powder, 6-15 parts of quartz powder, 3-12 parts of nano-sized iron oxide, 3-10 parts of zinc powder, 5-16 parts of ceramic micro powder, 2-6 parts of molybdenum disulfide, 2-5 parts of polytetrafluoroethylene, 3-5.8 parts of an aminosilane coupling agent, 3-5 parts of a coalescing agent, 3-7 parts of a reactive diluent, 0.3-0.7 part of a defoaming agent, 0.3-0.6 part of leveling agent, 20-35 parts of deionized water and 0.6-1.5 part of a curing agent. The modified epoxy resin anticorrosive paint provided by the invention is strong in force of adhering to base materials, good in anticorrosive performance, high in impact strength and excellent in weather fastness.

The invention discloses a bionical type absorbable dura mater patch and a preparation method and application thereof. The bionical type absorbable dura mater patch has a two-layer structure, the side making contact with the brain tissue is a lubricating layer which contains natural polymers with a lubricating effect, and the side deviating from the brain tissue is a dura mater regeneration promoting layer in which nanofibers are arranged in a highly-oriented mode. According to the bionical type absorbable dura mater patch, the microscopic structure is completely bionic to that of the natural dura mater, directional crawling of cells can be guided, the brain tissue can be protected against wearing and injuries, and tissue adhesion is prevented; meanwhile, the biocompatibility, the flexibility and the attaching property are good, industrialized production is easy to achieve, and good application prospects are achieved.

The invention discloses cleaning water-based paint with a bionic self-lubricating effect, and a preparation method thereof. By utilizing the characteristic that the surface is self-lubricated through a common nepenthes imitating effect, and adopting a mode of loading silicone oil on aerogel, a silicone oil lubricating fluid with the lubricating effect is sealed into a water-based resin paint base material; by combining adsorption of an aerogel porous structure and transfer behaviors, on a water-based resin surface, of silicone oil, the controlled release effect, on the surface of the water-based paint base material, of the silicone oil lubricating oil is achieved, and long-time self-lubricating cleaning effect is achieved. According to the preparation method, a super-hydrophobic rough surface is not needed to be constructed; the prepared paint has self-cleaning effect, good stability, environmental protection and no pollution; the preparation method is simple, is innovative, is high in implementation, and is more beneficial to industrial application.

The invention makes public a kind of high temperature separating material which can prevent dregs from adhering the dregs pot. The material includes 30~50 units of dolomite, 30~45 units of bentonite, 18~28 units of clay, 1.0~2.5 units of trimer sodium phosphate, 0.5~3.0 units of carboxymethyl cellulose and 135~220 units of water in proportion of weight. All water-fast particles' size should not lesser than 180 eyes. And about 0.5~5 units of black lead can be joined in the material. The material has good property of high temperature, dregs proof, and anti-strip. It can prevent the pot from being dregs adhered effectively, so it can make sure turning dregs automatically and high velocity of the pot. Adhering degree of the material is moderate, and no deposition and delamination in 72 hours. The material has good working performance.

The invention discloses a cleaning agent for a throttle valve and a preparation method for the cleaning agent. The cleaning agent for the throttle valve comprises the following components in percentage by mass: 60 to 80 percent of non-aryl alkane of C8-C13, 3 to 6 percent of polar solvent, 3 to 6 percent of synthetic base oil, 1 to 3 percent of antiwear agent, 1 to 2 percent of metal protective agent, 0.04 to 0.08 percent of macromolecule detergent dispersant, 10 to 14 percent of deodorized liquefied petroleum gas and 2 to 3 percent of carbon dioxide. The cleaning agent has the cleaning function of the traditional carburetor cleaning agent, also has a lubricating effect on the throttle valve and a protective effect on a special coating of the inner cavity of an electronic throttle valve, and does not have corrosion or swelling effects on rubber oil seal on an idle-speed motor. The cleaning agent can eliminate oil sludge, dust and carbon deposit which are adhered to the cavity of the throttle valve, the throttle valve, an air inlet channel and the like, and can also inhibit generating and aggregating deposits on the machine parts. The cleaning agent is made of environment-friendly materials completely, does not contain ingredients such as arene, halohydrocarbon and the like which have damage to a human body, has no toxicity and low odor, and does not pollute the human body, the environment and the atmosphere.

The invention discloses rubber with a self-lubricating effect for a lining. The rubber is prepared from the following components in percentage by weight: 55 to 59 percent of natural rubber, 7 to 14 percent of butadiene rubber, 0.7 to 2 percent of refined vegetable oil oleamide, 0.7 to 2 percent of molybdenum disulfide, 0.7 to 2 percent of carbon nano tubes, 3.5 to 4.1 percent of graphite, 3.2 to 3.5 percent of zinc oxide, 1 percent of stearic acid, 1 to 1.7 percent of antioxidant 6PPD, 1 percent of antioxidant TMQ, 2 percent of microcrystalline wax, 13.1 to 13.8 percent of carbon black N 330, 1.3 to 1.4 percent of sulfur grundum and 1.0 to 1.3 percent of accelerant CZ. The rubber for the lining, disclosed by the invention, has quadruple sustained releasing functions and is suitable for the lining of a self-lubricating high-end car; the problem that common self-lubricating rubber easily fails in lubricating can be solved, and the abrasion resistance of the rubber is increased; by combining specific situations of rubber abrasion at different stages, the service life of rubber and lining products can be prolonged. Meanwhile, the invention provides a preparation method of the rubber with the self-lubricating effect for the lining.

A heavy-duty diesel engine split type rocker arm brake mechanism for a commercial vehicle comprises a rocker arm body, a swing mechanism and a hydraulic drive system; the rocker arm body is mounted on a rocker arm shaft through a main mounting hole, the swing mechanism comprises a swing head, a first adjusting bolt and a rolling column, the swing head is mounted on the rocker arm body, a sheet-shaped spring is arranged at the bottom of the swing head, and is pressed on the bottom of the rocker arm body, a ball head of the first adjusting bolt is mounted in a ball socket in an elephant foot shape, the hydraulic drive system comprises a hydraulic plunger with a return spring sleeved, a second adjusting bolt in contact with the hydraulic plunger and a rocker arm cam in threaded connection with the hydraulic plunger, the hydraulic plunger is mounted in a drive cavity of the rocker arm body, the rocker arm cam makes contact with the rolling column, a brake hydraulic oil way communicated with the main mounting hole, the drive cavity and a swing arm shaft hydraulic oil hole is arranged in the rocker arm body, and the heavy-duty diesel engine split type rocker arm brake mechanism is high in reliability, low in cost, high in lightweight degree, simple in structure, convenient to assemble and maintain and good in brake effect.

The invention relates to a novel mud therapy application, which comprises nonwoven fabric, a plaster and a plaster protective film. A self-heating bag is arranged on the upper side of the nonwoven fabric. The plaster comprises components: 1-70% of nano-level mineral powder, 0.1-40% of plant extracts or traditional Chinese medicine, 0.1-20% of transdermal enhancer and 1-70% of pressure-sensitive adhesive or water base cement. The invention further relates to a novel wax therapy application, which comprises nonwoven fabric, a plaster and a plaster protective film. A self-heating bag is arranged on the upper side of the nonwoven fabric. The plaster comprises components: 1-70% of nano-level mineral powder, 0.1-40% of plant extracts or traditional Chinese medicine, 0.1-20% of transdermal enhancer and 1-70% of pressure-sensitive adhesive or water base cement. Different parts of the novel mud and wax therapy application coordinate with each other to realize comprehensive treatment effect.

The invention relates to full-lightweight ceramsite concrete and a preparation method thereof. The full-lightweight ceramsite concrete is prepared from, by weight, 278-339 parts of cement, 318-344 parts of ceramsite, 334-382 parts of pottery sand, 50-55 parts of coal ash, 35-42 parts of silica fume, 0.001-3 parts of triisopropanolamine, 0.5-3 parts of a water reducing agent and 0.001-3 parts of athickening agent. The method includes steps: subjecting ceramsite and pottery sand to surface pretreatment through alkyl alkoxy silane, prewetting ceramsite and pottery sand to achieve a saturated surface dry state, then sequentially feeding lightweight aggregates, cement, silica fume and coal ash into a forced mixer, and well mixing to obtain the full-lightweight ceramsite concrete. The full-lightweight ceramsite concrete prepared according to the method has advantages of light weight, high peaceability and effectiveness in inhibition of ceramsite floating and has a promising application prospect in the field of energy-saving construction engineering.

An environment-friendly brake pad adopting copper-free microcrystalline friction materials is made from components including acrylic pulp, mullite ceramic fibers, brucite fibers, nano tin powder, zinc sulfide, brown aluminum oxide, antimony sulfide, cellulosic fibers, iron black, calcium carbonate whiskers, calcium sulfate whiskers, potassium titanate, crystalline flake graphite, calcined petroleum coke, flake aluminum powder, nitrile rubber powder, phenolic resin, nanometer manganese hydroxide and molybdenum disulfide. Through reasonable collocation of the multiple components, advantages of the various components given full play to the friction materials can be guaranteed. By the reasonable collocation of the new fiber materials, the defect of respect performance can be made up, and high performance can be produced due to mutual influenced action. The environment-friendly brake pad is good in resistance to high-temperature recession, long in service life, good in wear-resisting performance, stable in friction coefficient and environment friendly.

The invention discloses a method for improving the plasticity of a wood fiber raw material, wherein the method comprises the specific steps: (a) drying the wood fiber raw material to make the moisture content below 20%, and then crushing to the particle size of less than or equal to 5 mm; (b) adding an inoculant and a conditioner to the wood fiber raw material obtained after being crushed in the step a, and adjusting the carbon / nitrogen ratio, the water content and the pH value; and (c) stacking the wood fiber raw material adjusted in the step b into a stacking shape or stacking in a fermentation vessel, fermenting, turning over the material irregularly, when the material accumulated temperature reaches 500-1000 DEG C, finishing fermentation, and thus obtaining the wood fiber raw material having the plasticity improved. The method is a microorganism treatment method, has no pollution to the environment, has no need of heating or pressurization and other physical processes, is low in energy consumption, simple in treatment process, and large in one-time processing amount, has no secondary pollution, and is suitable for large-scale popularization and use.

The invention provides a preparation method of an isocyanate modified polyether silicone oil nonionic emulsion and a product and application thereof. The method comprises the steps of synthesizing double-end containing hydrogen silicone oil, synthesizing double-end hydroxyl modified silicone oil, synthesizing isocyanate modified polyether silicone oil, adding a proper amount of water for emulsifying, performing co-emulsifying with cationic amino modified epoxy silicone oil, and performing compounding to prepare a carbon fiber precursor oil agent. The technical problems met during an addition reaction of polyether modified silicone oil and high molecular weight polyethylene glycol monoallyl ether through containing hydrogen silicone oil that the reaction is difficult, the yield is low, theseparation purification is hard, and the color is dark are solved, and meanwhile the problems that the storage stability of amino modified silicone oil in the weak acid water phase is poor, compounding with cationic amino modified epoxy silicone oil is performed to prepare the carbon fiber precursor oil agent, after oiling, the carbon fiber precursor is stuck to rollers in the high-temperature drying and rolling process are solved.

The present invention relates to a refining method of flour weevil oil, and is characterized in that after being dried and filtered, a flour weevil makes a supercritical carbon dioxide fluid extraction and an extractive matter separating working procedure treatment; the water content of the flour weevil after being dried is 6 to 10 percent; the filtering granularity of the dry flour weevil is 14 to 30 mu; the pressure of the supercritical carbon dioxide fluid extraction is 20MPa to 40MPa, the extraction temperature is 35 to 55 DEG C, the flux of carbon dioxide fluid is 800L to 1200L per hour, and the extraction time is 40 minutes to 100 minutes. The present invention refines flour weevil oil adopting the international most advanced supercritical carbon dioxide extraction technology, and has the advantages of high efficiency, little energy consumption, no rudimental solvent, no pollution, good security, high oil quality and so on. The present invention plays a very important role in advancing the industrialized exploitation of the flour weevil, promoting the adjustment of industrial structure in countryside, and building a new socialist countryside.

The invention discloses a heat-resistant and flame-retardant nylon tube. The heat-resistant and flame-retardant nylon tube is prepared from nylon 66, nylon 6, polymethylhydrosiloxane, epoxy resin, titanate coupling agent modification nano-zinc oxide, modification needle-like wollastonite, an amination carbon nano-tube, nano-silicon dioxide, red phosphorus, melamine cyanurate, organic nano-montmorillonite, glass fibers, magnesium borate whiskers, basic zinc carbonate nanofibers, ethylene-propylene-diene monomer, ethylene-bis-stearamide, calcium pimelate, zinc pimelate, silane coupling agent, aluminum diethylphosphinate and lanthanum stearate. The heat-resistant and flame-retardant nylon tube is good in heat resistance and flame retardancy, high in strength and excellent in impact resistance, and a nylon tube formed by the heat-resistant and flame-retardant nylon tube is good in overall performance and long in service life.

The invention relates to the technical field of molecular distillation and discloses a molecular distiller. The molecular distiller comprises a motor, a distillation cylinder, a heating jacket located outside the distillation cylinder, and a condenser and a membrane scraper located in the middle of the distillation cylinder. The membrane scraper is driven by the motor and is arranged in the distillation cylinder and close to the inner wall of the distillation cylinder. The membrane scraper comprises several membrane scraper groups. The membrane scraper group at least comprises a scraper plate and a flexible scraper blade, the flexible scraper blade is arranged at the rear end of the scraper plate, and the scraper plate and the flexible scraper blade slide along a rotation direction of the membrane scraper. The scraper plate and the distillation cylinder inner wall form an appropriate space and do not contact with each other. A part of the flexible scraper blade fits to the inner wall of the distillation cylinder. The molecular distiller utilizes a combined structure of the rigid scraper plate and the flexible scraper blade, forms a uniform liquid material membrane, prevents mechanical friction between the membrane scraper and the evaporation surface, and is particularly suitable for molecular distillation of the heat-sensitive material and / or the mechanical friction sensitive material.

The invention discloses a continuous hot-drawing forming method for a nickel-titanium alloy pipe. The continuous hot-drawing forming method comprises the following steps: 1, inserting a core rod into a nickel-titanium alloy pipe blank to obtain a combined body; 2, drawing the combined body by adopting a continuous hot-drawing forming device; 3, repeating the step 2; 4, heating the drawn combined body, then plastically stretching the core rod in the combined body to reduce the diameter of the core rod, and finally taking out the diameter-reduced core rod to obtain the nickel-titanium alloy pipe. According to the method, due to induction heating, the heating speed is high; continuous hot-drawing can be realized by continuous heating, so that the production efficiency is improved; furthermore, a work hardening state on the surface of the pipe can be effectively reduced in a heat treatment stage by virtue of a skin effect of current; the subsequent plastic processing of materials is facilitated. A graphite pipe is adopted as the continuous hot-drawing forming device used in the method, and can preserve the heat of the materials and realize a lubricating function; therefore, the phenomenon that the surface of the pipe is scratched during the axial stretching motion in a furnace pipe can be effectively avoided.

The invention discloses a compression-resistant and corrosion-resistant cable for ships. A sheath layer comprises the following raw materials in weight part: 60-90 parts of CR122 type chloroprene rubber, 50-80 parts of styrene butadiene rubber, 30-60 parts of EVM rubber, 20-50 parts of chlorosulfonated polyethylene, 10-30 parts of chlorinated polyethylene, 10-30 parts of di(2-Ethylhexyl)-4,5-epoxytetrahydrophthalate, 5-15 parts of isophthalic acid ester, 5-15 parts of oxidized polyethlene wax, 10-30 parts of magnesium carbonate, 2-8 parts of nanometer zinc oxide, 3-9 parts of magnesium oxide, 5-10 parts of eleaostearic acid, 2-8 parts of heptahydrate zinc borate, 3-8 parts of ferrocene, 1-5 parts of aluminium hydroxide, 3-5 parts of carbon black N550, 2-5 parts of nylon 66, 1-5 parts of antioxidant HS-911, 2-6 parts of vulcanizing agent DCP, and 1-5 parts of fire retardant TCP. The compression-resistant and corrosion-resistant cable for ships is reasonably structured, good in compression-resistant performance and strong in corrosion-resistant performance.

The invention discloses a double-coating magnetic liquid sealing device. The sealing device comprises a shell, a rotating shaft, a first pole shoe, a second pole shoe and a first permanent magnet, wherein a shaft chamber is formed in the shell; the rotating shaft is rotationally arranged in the shaft chamber; a first non-magnetic coating is arranged on the outer circumferential surface of the rotating shaft; the first pole shoe and the second pole shoe are arranged on the rotating shaft in a sleeving mode and are arranged at intervals in the axial direction of the rotating shaft; second non-magnetic coatings are arranged on the inner circumferential surface of the first pole shoe and the inner circumferential surface of the second pole shoe; the first permanent magnet is arranged on the rotating shaft in a sleeving mode; the first permanent magnet is located between the first pole shoe and the second pole shoe; a first liquid cavity is formed among the first pole shoe, the second poleshoe, the first permanent magnet and the first non-magnetic coating; and the first liquid cavity is used for storing magnetic liquid. According to the double-coating magnetic liquid sealing device, the machining difficulty and cost are reduced, the magnetic liquid can be supplemented in time, the pressure resistance of the magnetic liquid sealing is maintained, the magnetic liquid further has a lubricating effect, and the torsion moment of the magnetic liquid sealing is reduced.

The invention discloses an anti-blocking low smoke zero halogen flame-retardant cable material for an optical cable. The anti-blocking low smoke zero halogen flame-retardant cable material comprises the following components in parts by weight: 65-75 parts of ethylene-vinyl acetate copolymer, 20-30 parts of high pressure metallocene polyethylene, 10-20 parts of modified polyethylene, 70-110 parts of aluminum hydroxide, 20-30 parts of magnesium hydroxide, 2-5 parts of silicone master batch, 1-3 parts of polyethylene wax, 30-50 parts of flowable agent, 0.15-0.45 part of antioxidant, and 2-5 parts of black master batch, wherein the content of VA in the ethylene-vinyl acetate copolymer is 20-28%, the melt index of 2.16Kg of high pressure metallocene polyethylene at 190DEG C is less than or equal to 3g / 10min, the density is less than 0.92g / cm<3>. By adopting the anti-blocking low smoke zero halogen flame-retardant cable material, the outer diameter of the optical cable is uniform, so that the shrinkage integrity of the core of the optical cable is guaranteed, the signal transmitted in the optical cable is not attenuated sharply; and in addition, the tensile strength of the cable is greater than or equal to 13MPa, the elongation at break is greater than or equal to 250%, the oxygen index is greater than or equal to 34%, and the cable has excellent mechanical property.

The invention discloses procyanidine-modified carboxymethyl chitosan, a preparation method thereof, and application thereof in the fields of medical materials, health-care foods, cosmetics and the like. The procyanidine-modified carboxymethyl chitosan keeps the characteristics of carboxymethyl chitosan and has high oxidation resistance, antibacterial activity, barrier properties and the like, and is worthy of being applied.

In a magnet switch for a starter, a first contact portion and a second contact portion are connected in parallel between a battery and a motor. The first contact portion makes contact through a resistive component so that the motor starts rotation at low speed. By this, a pinion is pushed in an axial direction by an axial component of splines and brought into mesh with a ring gear in a condition that its rotation is restricted. Thereafter, the second contact portion makes contact in accordance with further movement of a plunger so that electric power is fully supplied to the motor through the second contact portion, thereby starting engine. A fixed contact of the first contact portion is made of a carbon material. The resistive component is provided by the carbon material.

The invention discloses a skin mucous menbrane antimicrobial fluid and a skin mucous menbrane antimicrobial wet tissue. The antimicrobial fluid comprises the following components by weight: 10-90 parts of a cactus stem leaf extracting solution, 2-50 parts of an aloe extracting solution, 2-80 parts of deionized water, 0.2-10 parts of Tween 80, and 0.5-20 parts of propylene glycol. The skin mucous menbrane antimicrobial wet tissue comprises a natural bamboo fiber non-woven fabric subjected to sterile treatment and a disinfectant for soaking the natural bamboo fiber non-woven fabric, and the main components of the disinfectant are the same as those of the skin mucous menbrane antimicrobial fluid. The skin mucous menbrane antimicrobial fluid has the characteristics that the bacteriostatic function of plant traditional Chinese medicine components of cactus and aloe is utilized, various pathogens can be inhibited, skin can be cleaned, and a lubrication action on the skin is realized; the wet tissue material adopts the natural bamboo fiber non-woven fabric, so that the softness, the comfort degree and the security degree of the material are improved.

The invention discloses a preparation method of a wear-resistant SBS (styrene butadiene styrene) sole material. The preparation method comprises the following steps: step 1, calcium carbonate, maleic anhydride, ethylene glycol and water are mixed, and modified calcium carbonate is obtained; step 2, modified calcium carbonate, neodymium oxide, strontium carbonate, alumina, magnesium oxide and absolute ethyl alcohol are mixed uniformly and sintered, and a first mixture is obtained; step 3, polyethylene glycol is added to the first mixture, the materials are sintered, and a second mixture is obtained; step 4, ethylene glycol, water, linoleic acid, sodium dodecylbenzenesulphonate, styrene and potassium sulfate are added to the second mixture for a reaction, and a third mixture is obtained; step 5, SBS, the third mixture, polystyrene, UHMWPE (ultrahigh molecular weight polyethylene), carbon black, terpene resin, lanthanum oxide, cerium oxide, zirconia, PEEK (polyether-ether-ketone) resin, oxidized polyethylene wax, macadimia nut shell powder, snail shell powder and bamboo fibers are uniformly mixed and subjected to milling, and the wear-resistant SBS sole material is obtained. The SBS sole material has the advantages of high strength and good wear resistance.

The invention relates to the field of polyvinyl chloride molding and processing, and particularly relates to a composite heat-stable assistant for VC molding and processing and a preparation method thereof. The stable assistant comprises the following raw materials in parts by weight: 100-120 parts of light rare-earth magnesium hydrotalcite, 20-90 parts of curcumin and 20-40 parts of calcium stearate. The preparation method comprises the following steps: evenly premixing light rare-earth hydrotalcite with calcium stearate; mechanically stirring and mixing at 100-120 DEG C for 3 hours, wherein the rotating speed of an agitator is 400-800r / min; cooling the material to 40-60 DEG C, so as to obtain a material pre-mixture; evenly mixing the curcumin with the material pre-mixture; mechanically stirring and mixing at 40-60 DEG C for 2 hours, wherein the rotating speed of the agitator is 300-500r / min; cooling the materials to room temperature, so as to obtain the composite heat-stable assistant. The light rare-earth hydrotalcite-curcumin composite heat-stable assistant is wide in raw material source, low in cost, and friendly to environment, and has excellent strength and toughness.

The invention discloses a portable power adapter which has small occupied space, aesthetic and harmonic appearance, and convenient deploying and collecting and carrying. The invention comprises a housing, a power input and an output line (51, 53), a power convention circuit (6), and a wire lock-up mechanism; the center of the housing is provided with a hollow stepped shaft column (2), the external sidewall of the shaft column (2) is provided with a ring diaphragm (22), an upper and a lower rotating disc (31, 32) is provided above and below the ring diaphragm (22), the stepped column surface of the upper and the lower rotating discs are respectively provided with external conducting layers (301, 302), the shaft column (2) is provided with an inner conducing layers (201, 202), the power input and the output lines (51, 53) are connected with the external conducting layers (301, 302) respectively, the input and the output ends of the power convention circuit (6) are connected with the inner conducting layers (201, 202), an upper and a lower twisting spring (41, 42) are connected between the upper and the lower rotating discs (31, 32) and the shaft column (2), and the power input and the output lines (51, 53) are wound the periphery of the upper and the lower rotating discs (31, 32).

The invention discloses an additive for producing melt-blown nonwoven fabrics. The additive is prepared from 0.05-5wt% of fatty acid amide and 95-99.5wt% of di-tert-butyl peroxide. The invention also discloses a use method of the additive for producing melt-blown nonwoven fabrics. An additive and low-melt index polypropylene raw material mixture contains 0.3-10% of the additive. The additive can improve the fluidity of the melt blow raw material, and can be added to low-melt index polypropylene in order to directly produce the melt-blown nonwoven fabrics, so the product quality is ensured, the flow is simplified, the cost is saved, and the efficiency is increased.

A vaginal-applied interferon tablet for treating cervicitis, cervical erosion and viral vaginitis and its preparing process and disclosed. Its advantages are high curative effect and stability, simple preparing process and high solubility.

The invention discloses a graphene antiseptic coating. Raw materials of the graphene antiseptic coating comprises, in parts by weight, 30-70 parts of resin, 3-5 parts of graphene-modified carbon fiberpowder, 5-10 parts of zinc powder, 0.5-3 parts of a film-forming accelerator, 0.2-2 parts of a defoaming agent, 0.1-1 part of an auxiliary agent and 5-30 parts of water. Through the coating, the phenomenons of easily uneven dispersion and easy agglomeration caused by direct addition of graphene to the coating can be improved effectively, and meanwhile the corrosion resistance of the coating, theadhesion of the coating and the impact resistance and flexibility of the coating can be improved; and a preparation method of the graphene antiseptic coating has simple operation and easy industrialization.

The invention discloses a chemical product, namely long-term antirust grease, which ensures that the production cost is relatively reduced and the antirust time is also prolonged. The effective compositions of the long-term antirust grease comprise machine oil, stearic acid, calcium hydroxide and barium mahogany sulfonate. The operation process of the production technology of the long-term antirust grease is as follows: adding a small amount of machine oil, the stearic acid, the calcium hydroxide and the barium mahogany sulfonate in a reaction kettle first, injecting a certain amount of water, fully saponifying the mixture when the temperature is increased to 130 DEG C, adding remaining machine oil into the reaction kettle, and ensuring that the reaction kettle is subjected to thermal insulation at a temperature of 100 DEG C or so for about 1 hour. The long-term antirust grease can resist from being exposed to the sun and rain; after a metal fastener is coated with the long-term antirust grease, the antirust function is remarkably improved, the antirust performance can reach three years, and the technical problem that the antirust time of old products does not exceed one year is solved; in addition, the long-term antirust grease uses raw materials which are purchased on negotiation, has simple process operation and relatively reduces production cost; and the long-term antirust grease is applicable to the corrosion prevention and lubrication of bolts at various positions such as rail joints, concrete sleepers, railway switches, bridges and so on, and has certain acid, alkali and salt resistance.