59results about How to "Has a cost advantage" patented technology

The invention discloses a current collector carbon coated aluminum foil and its preparation method. A carbon-containing composite layer is arranged on the substrate of the current collector carbon coated aluminum foil, and is combined with the substrate through a binder, wherein the thickness of the carbon-containing composite layer is 1-100mum; the carbon-containing composite layer comprises granular conductive carbon black pre-dispersed by a dispersant, and fibrous conductive carbon; the granular conductive carbon black and the fibrous conductive carbon filled between the layers of the granular conductive carbon black form a netted node form conductive network. The composite layer is tightly combined with the substrate of the aluminum foil, so the conductivity and the corrosion resistance of the aluminum foil are improved, and the aluminum foil is protected from oxidation or chemical corrosion. The preparation method of the aluminum foil comprises the following operations: mixing the conductive carbon black with the dispersant in an organic solvent to pre-disperse, adding the fibrous conductive carbon, uniformly mixing, adding the binder to prepare a slurry, coating on the aluminum foil, and carrying out vacuum drying. The current collector carbon coated aluminum foil enables the interface impedances of the current collector and an active layer to be reduced, the internal resistance of a battery to be reduced, and the cycle life and the ratio performances of the battery to be improved when the aluminum foil is used as a lithium ion battery anode current collector. The aluminum foil has the advantages of simple technology, low cost and wide application prospect.

The invention provides a preparation method of mesotrione. The preparation method comprises is capable of preparing the target product from raw materials such as ortho-nitrotoluene, chlorosulfonic acid, sulfoxide chloride, sodium sulfite, chloroactic acid, 1,3-cyclohexanedione in the presence of a catalyst and acid-base. The preparation method is based on common chemical raw materials, the reaction flow of each step is implemented under conventional operation conditions, the amount of three wastes is low, the total yield is above 61%, the purity of the product is high, the purity of the coarse product of the mesotrione is greater than 98%, and the coarse product of the mesotrione can be further purified; as a result, the preparation method of mesotrione is applicable to large-scale industrial production.

The invention discloses a method for preparing glycerol-based polyether polyol. Firstly, crude glycerol, a by-product of biodiesel, is refined to obtain refined glycerol which is used as an initiator together with other low-molecular-weight polyol and amines or used as the initiator alone; and with the existence of an alkaline catalyzer, the refined glycerol is reacted with oxidized alkene to obtain the polyether polyol. In the invention, the crude glycerol, the by-product of the biodiesel, is used as the raw material for producing the polyether polyol, thus having low cost, good product properties and being capable of meeting the requirements of producing polyurethane materials.

The invention discloses a novel self-thermal insulating energy-saving wall body material mainly made from iron tailings powder, as well as a preparation method of the wall body material, belonging to the technical field of the novel wall body material and building energy saving. The novel iron tailings powder self-thermal-insulating energy-saving wall body material is mainly prepared from the iron tailings powder in the presence of cement serving as a gelatinization material by using a foaming technology, straw cutting, super-light weight aggregate, an interface treatment technology and various admixtures. The wall body material has the beneficial effects that the requirement of saving 65% of energy in severe cold areas is reached without being adhered with a polystyrene board outside, a wall body and the thermal insulating function are formed at one time, effect of no self ignition is achieved, A-grade fire resistance requirement is reached, the inflammable problem of the current high-molecule outer wall thermal-insulating material is solved, and the service life of the wall body material is as long as the service life of a building. A great quantity of iron tailings powder is used for saving energy and utilizing waste and the industrial policy of national building energy saving and wall body innovation is met; and compared with the similar products, the wall body material has remarkable technological and economic advantages, can be widely used in the field of buildings and can generate enormous economic and social benefits.

The invention discloses a power amplification module, which comprises a power divider for equally dividing an RF input signal into N signals according to the power, N being equal to or larger than 2; N power amplifiers working in a linear region respectively for amplifying the N signals and outputting N amplified signals; and a mixer for mixing the N amplified signals to one signal and outputting the signal as the RF output signal. The power amplification module can significantly improve the linearity of transmission power and has lower cost.

The invention discloses a foldable F-inverted and annular combined multi-frequency-range communication antenna. The antenna comprises an antenna body which is at least one conductor subcircuit and is provided with a grounding point and a feeding point; on the antenna body, a first branch and a second branch are formed based on the feeding point as an initial end, and a third branch is formed based on the grounding point as an initial end; and the second branch is connected with the tail end of the third branch to form a semi-close first gap, the first branch and the second branch form a semi-close second gap, the joint part of the second branch and the third branch and the tail end of the first branch form a third gap, and the antenna body is also provided with a fourth branch which is generated on the initial end of the third branch. The antenna has the advantages of simple structure, good electrical energy and the like.

The invention discloses a preparation method of tea feed. The method includes the following steps that firstly, tea leaves are soaked in water, the tea leaves are expanded after being taken out, and the expanded tea leaves are prepared; secondly, animal oil and vegetable oil are taken and mixed to prepare compounded grease, emulsifiers, water, zinc lactate, lactic acid or citric acid, sucrose or glucose and sodium cyclamate are added into the compounded grease and are evenly mixed, finally, homogeneous processing is performed, and emulsified fat pulp is prepared; thirdly, the emulsified fat pulp is sprayed to the expanded tea leaves, the tea feed is obtained after even mixing, or the tea feed is obtained through drying after even mixing. The technology is simple and implementation is easy. The prepared tea feed is rich in emulsified fat pulp, tea polyphenol, lactic acid, zinc lactate and other active substances, and the tea feed has the functions of improving immunity and ingestion, promoting digestion, stimulating growth, reducing product cholesterol, improving meat quality of bred animals and the like. The prepared tea feed has the oil oxidization resistance function and can decrease the oil oxidization speed in summer.

The invention discloses a solar evacuated tube collector for heat exchange in a micro-channel. The micro-channel comprises a glass tube, a micro-channel tube bundle, a liquid return tube, a gas collecting cavity, a liquid collecting cavity, a gas guide tube and a liquid guide tube which form a separating type circulating tube together with an external condensation section, wherein a circulating working medium capable of generating gas-liquid phase change within the heat-collecting temperature area range is filled into the separating type circulating tube, and the filling amount of the circulating working medium is 10 to 90 percent of the inner volume of the separating type circulating tube, so that the circulating working medium has a stable airlift pump effect in the micro-channel. In the solar evacuated tube collector, by utilizing the high heat transfer efficiency and unique airlift pump effect of the micro-channel, the heat transfer efficiency of a solar collector is improved, the weight of a heat absorption body in the conventional evacuated tube solar collector is reduced, and the heat-collecting temperature is improved, so the expansion of the application temperature area range and the application occasion range of the evacuated tube solar collector is facilitated.

The invention provides a preparation method of hexafluoropropylene oxide. The preparation method comprises the step of carrying out gas phase oxidation on hexafluoropropylene and oxygen by utilizing CF3CF2CF2O[CF(CF3)CF2O][n-1]CF(CF3)COF as a reaction solvent, so as to prepare hexafluoropropylene oxide, wherein n is an integer from 1 to 5. According to the preparation method provided by the invention, an oxidative burst problem can be solved, the high selectivity of an epoxidation reaction is maintained, the reaction can be continuously and stably carried out, and therefore, the high-yield hexafluoropropylene oxide is obtained.

The invention discloses a method for preparing a carbon nanofiber by taking halloysite as a catalyst. Polyester serves as a carbon source material, the halloysite serves as the catalyst, the polyesterand the halloysite are melted or mixed by solution to obtain a compound, and the compound is split to prepare the carbon nanofiber. The carbon source is the polyester or recycled polyester, the halloysit is used as the catalyst, and the carbon nanofiber is rich in source, low in cost, green and environmentally friendly. Mixing equipment and splitting equipment are universal equipment, and the method has simple technology .

Provided is a glyphosate synthesis technology. The glyphosate synthesis technology is characterized in that a metal alkoxide organic compound is adopted as a catalyst for glyphosate synthesis and particularly for depolymerization and addition during glyphosate synthesis. The glyphosate synthesis technology includes the following steps: an alcohol and paraformaldehyde are mixed and stirred to be uniform, the catalyst is added into a mixture solution or directly added into an alcohol solution of formaldehyde, and a transparent mixture solution is generated; triethylamine and glycine are added into the transparent mixture solution, stirring is conducted to carry out an addition reaction, and after the addition reaction is finished, dimethyl phosphite is added into the mixture solution to carry out a condensation reaction; and after the condensation reaction is finished, hydrochloric acid is added into the mixture solution to carry out hydrolysis, and then through crystallization, washingand drying, glyphosate is obtained. According to the technical scheme of the glyphosate synthesis technology, the specific catalyst is adopted, therefore, glyphosate synthesis reaction speed and selectivity are improved, reaction speeds of depolymerization and addition are high, the reactions are conducted completely, the final yield of a glyphosate product obtained through the glyphosate synthesis technology is increased by 3% or above compared with the final yield of a glyphosate product obtained through traditional technologies, and thus the glyphosate synthesis technology has a reaction advantage, an energy-saving advantage, a coat advantage and an environment-friendly advantage.

The invention discloses a high-blue-phase high-heat-resistance polypropylene composition as well as a preparation method and application thereof. The polypropylene composition comprises the following components in parts by weight: 40-90 parts of polypropylene resin, 0-30 parts of a toughening agent, 0-30 parts of a filler, 0.5-4 parts of POE (Polyolefin Elastomer)-based carbon black master batch and 0.2-0.6 part of an antioxidant, wherein the POE-based carbon black master batch is prepared from the following components in parts by weight: 40 to 70 parts of POE resin, 30 to 50 parts of carbon black, 0 to 10 parts of filler and 1 to 5 parts of dispersing aid. According to the invention, the carbon black is firstly dispersed in the POE resin to prepare the POE-based carbon black master batch, and then the polypropylene material is modified, so that the finally prepared polypropylene composition has high blue phase and high heat resistance, and can be well used for preparing automobile interior and exterior ornaments.

The invention discloses a carbon nanotube master batch which comprises the following components in parts by weight: 50-80 parts of PP resin, 10-40 parts of a filler, 3-10 parts of MWCNT and 0.1-3 parts of auxiliaries, wherein the MWCNT is a multi-walled carbon nanotube, and the filler is at least one of talcum powder, calcium carbonate, barium sulfate and glass fiber. According to the carbon nanotube master batch disclosed by the invention, the MWCNT master batch with high dispersion degree can be prepared under the condition of common double-screw extrusion by controlling all the components and contents, and the problem that the MWCNT structure is easily damaged due to the fact that professional equipment is required to be used for banburying in the traditional master batch preparation issolved. Meanwhile, the invention also discloses a preparation method and application of the carbon nanotube master batch.

The invention discloses a norbornene organo-dialkoxysilane compound and a preparation method thereof. The norbornene organo-dialkoxysilane compound has a general formula (I), wherein R<1> is alkyl containing 1-5 carbon atoms; R<2> is branched alkyl with 3-10 carbon atoms on alpha or beta secondary carbon atoms connected with silicon atoms. The compound can be used as an external electron donor ofa propylene polymerization Ziegler-Natta catalyst system, can have better comprehensive performance as the external electron donor and can maintain the high activity of a catalyst and improve the hydrogen sensitivity of the catalyst as compared with existing external electron donors.

The invention provides an overflow compensating method and device for correcting an MEMS elapsed time clock. The method comprises the steps that an initial frequency error value of the MEMS elapsed time clock under a current temperature value is obtained; an underclocking parameter needed for frequency obtaining is computed; the initial frequency error value is used as an initial value to carry out sequential accumulation, and when an accumulation value numerical value is larger than or equal to 1, 1 is overflowed; when the numerical value is smaller than or equal to -1, -1 is overflowed; when the numerical value is larger than -1 and smaller than 1, overflowing does not happen; and the underclocking ratio with the value being the sum of the underclocking parameter and an overflowing value is used for carrying out underclocking on the practical output frequency of the MEMS elapsed time clock, and the needed frequency is obtained. A 0 / 1 sequence is used for equalizing the initial frequency error value of the MEMS elapsed time clock under a certain temperature, double-way overflow compensation is achieved, an expanding scheme is easy to implement, and cost advantages are achieved.

The invention relates to a material containing nanometer titanium dioxide and used for purifying air in a vehicle and a preparation technology thereof. The method is characterized by comprising the following steps: mixing a catalytic antibacterial agent nanometer titanium dioxide and a binder polytetrafluoroethylene PTFE and adding the mixture into an activated carbon host material; after mixing, adding ultrapure water at mass ratio of 5:1; adding water and then uniformly stirring, thereby acquiring a mixed solution; dipping the stirred mixed solution onto cellular activated carbon and skeleton non-woven fabrics at room temperature; and bonding the cellular activated carbon and the skeleton non-woven fabrics, rolling, pressing the surface moisture, rolling and then drying and forming, thereby acquiring a cellular activated carbon filtration adsorbing material. The dust and tiny particles in the outside polluted air are prevented from entering into the vehicle under the condition of guaranteeing the circulation between air in the vehicle and the outside air, so that the pollutants, such as, PM2.5, methylbenzene and formaldehyde, can be effectively filtered and prevented from entering the vehicle, and meanwhile, the anti-microbial and mildew-proof function can be enhanced.

The invention discloses a micro-needle made of a strong hydrophilic base material, and particularly relates to a micro-needle and a drug-loaded micro-needle which are prepared by using a composition of polyvinyl alcohol and a micromolecular polyhydroxy compound as a base material and have a strong hydrophilic surface, and an application of the micro-needle and the drug-loaded micro-needle in disease treatment. The polyhydroxy high-molecular substance polyvinyl alcohol is compatible with the micromolecular polyhydroxy compound, the microneedle with the strong hydrophilic surface can be obtained, a medicine can be strongly adsorbed as long as the microneedle is in contact with the medicine, the microneedle is unlikely to fall off, a technology is simple, mass production is easy, a drug loading capacity is obviously increased, medicine use efficiency is high, blank microneedle preparation and medicine loading are carried out in different stages, a high temperature is avoided in a drug loading stage, and therefore, the drug-loaded microneedle can be effectively applied to drug loading and drug release for treating diseases and is easy in mass production. The microneedle base material composition, the blank microneedle prepared from the microneedle base material composition and application of the blank microneedle to drug loading can keep the inherent surface strong hydrophilic polarity of polyvinyl alcohol, so that the drug loading capacity of wrapped drug loading and a penetration amount of drugs entering the body are obviously improved.

The present invention relates to a hydraulic motor with adjustable displacement and construction machinery equipped with the hydraulic motor. The hydraulic motor comprises: a motor casing; a main shaft arranged in the motor casing; a main shaft arranged in the motor casing and A plunger located radially outside the main shaft; a swash plate set in the motor housing and sheathed on the main shaft; wherein, the hydraulic motor can be detachably installed with rows of various inclination angles volume adjustment block so that the swash plate is connected between the inclined surface of the displacement adjustment block and the end of the plunger, displacement adjustment blocks at various inclination angles are installed into the hydraulic motor In the case of , the normal line of the swash plate forms different angles with the central axis of the main shaft.

The invention discloses a reserved bandwidth allocation method and device for CPS (Cyber Physical System) services. The method comprises the steps of: for a service r in CPS services, according to a total cost minimization strategy composed of the emergency cost, the quality of service QoS loss and the operation cost, determining N<r>(t) and the bandwidth amount planned for maintaining the servicer in the time slot t by all kinds of cloud platforms; and, according to the determined N<r>(t) and bandwidth amount planned for maintaining the service r in the time slot t by all kinds of cloud platforms, performing reserved bandwidth allocation of the CPS services in the time slot t, wherein N<r>(t) is the bandwidth amount planned for maintaining the service r in the time slot t. By applicationof the reserved bandwidth allocation method and device for the CPS services disclosed by the invention, for specific requirements of multiple CPS services in a CCPS environment, an optimized reservedbandwidth allocation strategy is provided for satisfying requirements of multiple CPS services; influence of the difference among the operation cost, a service level agreement (SLA) and the actual delivered bandwidth is reduced; and simultaneously, the basic QoS level is kept.

The invention discloses an automatically closed monorail hinge by means of gravity. The automatically closed monorail hinge by means of gravity comprises a mounting plate and a gate slot block. A rotating groove is formed in the gate slot block, a fixed axle block hole and an axle sliding bending groove are separately formed in two sides of the bottom of the rotating groove, a gasket axle and a sliding axle are vertically fixed in front of and behind the top surface of the mounting plate in a spaced manner, the top end of the sliding axle is slidably inserted into the axle sliding bending groove, a connecting plate is horizontally and rotatably arranged on the rod wall of the gasket axle in a sleeving manner, a fixed axle is rotatably fixed to the top surface of the outer side end of the connecting plate, the top end of the fixed axle is slidably inserted into the fixed axle hole, a slot slope is arranged on the bottom surface of the axle sliding bending groove, a gravity slide block is connected between the top of the slot slope and the inner wall of the rotating groove in a clamped manner, and a gravity bevel slidably connected to the slot slope is arranged on the top surface ofthe gravity slide block. A door body is closed automatically by means of gravitational potential energy by matching with structural characteristics of the monorail hinge, so that the integral structural dimension of the monorail hinge is simplified, and the automatically closed monorail hinge by means of gravity further has a cost advantage and is small in mounting space occupied.

The invention belongs to the field of biological medicine, and relates to a composite biological material of platelet-rich plasma tissue and a preparation method thereof. The composite biological material comprises PRP loaded with icariin, has the functional characteristics of good biological activity, chondrogenic property, osteogenic property and bone healing property, and can be used as a noveltissue engineering scaffold for bone tendon interface damage, is used for treating injury of a bone tendon interface, and realizes high-quality rapid healing of the bone tendon interface, the composite biological material shows the excellent slow-release effect, and can be slowly released at a proper speed for a proper duration, so that the drug effect of icariin is exerted to a greater extent, and side effects caused by over-high dosage are avoided.

The invention discloses an organic catalyst for synthesis of glyphosate. The catalyst is an alkoxy compound including alkali metal in the first main group, also comprises alkoxy metal compounds whichare prepared through a reaction between fresh anhydrous alcohol and anhydrous hydroxides or oxides of the first main-group alkali metal or the alkali metal, and is one or a combination of more of thealkoxy metal compounds in the form of an alcohol solution of the alkoxy metal compounds. The glyphosate synthesizing process comprises the steps: adding the organic catalyst to a methanol solution ofparaformaldehyde or formaldehyde, performing a depolymerization reaction, adding triethylamine and glycine after completion of the reaction, performing stirring for an addition reaction, adding dimethyl phosphite after completion of the reaction, performing a condensation reaction, adding hydrochloric acid for hydrolysis after completion of the reaction, and then performing crystallization, washing and drying so as to obtain glyphosate. The reaction speed and reaction selectivity of glyphosate synthesis can be improved through the specific catalyst, the depolymerization reaction has a high speed and thoroughness, and the addition reaction also has high selectivity, so that the yield of the glyphosate product reaches 3% or above; and the process has the advantages of reactions, energy saving, cost and environmental protection.

The invention discloses an assembling method for an H-shaped steel combined special-shaped column portal rigid frame structure. The assembling method comprises the steps that 1, prefabrication preparation is conducted; 2, the special-shaped column portal rigid frame is assembled; 3, an H-shaped steel combined special-shaped column portal rigid frame structure is assembled; And 4, a supporting system is assembled between the end-position portal rigid frame and the middle-position portal rigid frame adjacent to the end-position portal rigid frame. The special-shaped column is formed by directlycombining the hot-rolled H-shaped steel, and compared with a special-shaped column formed by welding the hot-rolled H-shaped steel and the split T-shaped steel, the special-shaped column has the advantages that sectional materials are convenient to purchase, the cost advantage is better, the section combination forms are richer, the section flexural rigidity is higher, and the engineering design requirement is easier to meet. The portal rigid frame structure can be used in an existing portal rigid frame structure with a bridge crane of less than 20 tons and an existing portal rigid frame structure with a bridge crane of more than 20 tons.

The invention relates to the technical field of multi-layer coating films of glass substrates, in particular to a mobile phone faceplate multi-layer coating film layer and a preparation method thereof. According to the technology for preparing the high-transmittance and abrasion-resistant multi-layer film on a glass substrate, the glass substrate, a magnesium oxide polycrystal seed layer, a high-hardness abrasion-resistant aluminum oxide coating film layer and a titanium oxide / aluminum oxide laminated transmittance enhanced layer are specifically included. According to the mobile phone faceplate multi-layer coating film layer and the preparation method thereof, (1) the metal organic chemical vapor deposition (MOCVD) technology is adopted so that large-area uniform film forming can be achieved; (2) through the design of a polycrystal buffer layer, the high-hardness aluminum oxide coating film of a microcrystal-amorphous mixed structure is grown in an extending mode at a low film forming temperature; and (3) the transmittance is improved through the aluminum oxide / titanium oxide / aluminum oxide laminated layer.

The invention discloses a preparation process of methyl mercaptothiadiazole, and relates to the technical field of pharmaceutical chemicals. The preparation process comprises the following steps: (1)reacting hydrazine hydrate serving as a raw material with carbon disulfide to prepare hydrazino dithioformic acid (HDF); (2) carrying out cyclization between HDF and acetic acid under the action of anacid catalyst to generate a methyl mercaptothiadiazole (MMTD) crude product; and (3) refining to obtain an MMTD product. Compared with the traditional process, the process greatly reduces or even avoids the use of concentrated sulfuric acid, is green and pollution-free, has simple process steps, greatly improves the cyclization reaction rate, improves the cyclization reaction conversion rate, saves time and energy, and is suitable for industrial production.

The invention discloses a low-cost concrete material special for flood fighting, rescue and relief and a preparation method thereof, and belongs to the technical field of for flood fighting, rescue and relief materials. The low-cost concrete material special for flood fighting, rescue and relief comprises a raw material A, a raw material B and a raw material C. The raw material A is prepared from the following material components in parts by weight: 400-600 parts of cement, 550-700 parts of machine-made sand, and 200-400 parts of fine stone. According to the low-cost concrete material special for flood fighting, rescue and relief and the preparation method thereof, the whole concrete material does not need to be packaged again and can be directly used, the operation in flood fighting and emergency rescue is convenient and easy, consumed time is short, precious time can be gained for flood fighting and emergency rescue, a specially designed outer package is more convenient to use, the concrete has a certain cost advantage, can be rapidly set in a short time and has a rapid reinforcing effect, and the setting time can be adjusted according to the requirements of users.

An organic catalyst for synthesizing glyphosate, the catalyst is an alkoxy compound comprising the first main group alkali metal, and also comprises fresh anhydrous methanol, ethanol and potassium, sodium metal or potassium, sodium anhydrous hydroxide Or a combination of one or more of the alkoxy metal compounds prepared by oxides or prepared by alkali metal reaction, and in the form of alcoholic solutions of the alkoxy metal compounds. In the process of synthesizing glyphosate, paraformaldehyde or methanol solution of formaldehyde is depolymerized after adding organic catalyst, and after the reaction is completed, triethylamine and glycine are added to stir for addition reaction; after the reaction is completed, dimethyl phosphite is added to carry out Condensation reaction, hydrochloric acid is added for hydrolysis after the reaction is completed, and then glyphosate is obtained through crystallization, washing and drying. Using a specific catalyst to improve the reaction speed and reaction selectivity of glyphosate synthesis, the depolymerization reaction speed is fast, the reaction is thorough, the addition reaction selectivity is also high, and the glyphosate product yield is more than 5% higher, which has the advantages of reaction and energy saving. , cost advantage, environmental protection advantage.