65results about How to "Economics of preparation process" patented technology

The invention discloses a ceramic column array reinforced metal based composite material or part and a preparation method thereof. The ceramic column array reinforced metal based composite material or part comprises a metal base body and ceramic columns regularly arranged in the metal base body, wherein the ceramic columns are integrally or locally compounded with the metal base body. The preparation method comprises the steps of: pretreating the ceramic columns, fixing a ceramic array and metal-casing, wherein a ceramic surface metallization, ceramic or ceramic and metallization method is adopted in the pretreatment of the ceramic columns. By adopting the preparation method provided by the invention, ceramic integrally or locally reinforced metal composite materials or parts with different ceramic reinforcement contents and types can be easily prepared. The ceramic column array reinforced metal based composite material or part has macro-uniformity of the ceramic reinforcements, has the characteristics of high reliability, excellent ceramic / metal interface bonding and the like in the use process, and can be used in the fields such as bearing, friction wear and the like.

The invention relates to an electrode Ce doped PbO2 used for treating waste water and its preparation method. The electrode is a F-PbO2-CeO2 / TiO2-NTs / Ti electrode. The method for producing the electrode comprises that: obtaining a titania nano-tubes array (TiO2-NTs / Ti) matrix prepared by an anodization processing, doping rare earth Ce, preparing a doped-type F-PbO2-CeO2 / TiO2-NTs / Ti electrode by using an electrodeposition method. Compared with the prior art, the PbO2 electrode by the present invention has the advantages of high oxygen evolution potential, strong catalytic activity, stable electrode electrochemical performance and long service life. Compared with the traditional PbO2 electrode, the oxygen evolution potential of the electrode is higher than 2.4 V, and accelerated and strengthen life is more than 400 hours, the service life can reach about 40 years. The electrode has the advantages of simple preparation technology and low manufacturing cost, and can be effectively used for an electrochemical oxidation treatment of organic waste water which has high density and is difficult to degrade, the electrode also has a wide economic and social benefit.

Back contact solar cells including rear surface structures and methods for making same. The rear surface is doped to form an n<+> emitter and then coated with a dielectric layer. Small regions are scribed in the rear surface and p-type contacts are then formed in the regions. Large conductive grid areas overlay the dielectric layer. The methods provide for increasing efficiency by minimizing p-type contact areas and maximizing n-type doped regions on the rear surface of a p-type substrate.

The invention belongs to the field of pharmacy of traditional Chinese medicines and natural medicines, relates to a production technology of an effective part extract of agriophyllum squarrosum total flavonoids, and use of the effective part extract of agriophyllum squarrosum total flavonoids in the field of pharmacy, and provides a production technology of an effective part extract of agriophyllum squarrosum total flavonoids capable of ensuring the curative effect of a medicament. The agriophyllum squarrosum total flavonoid extract disclosed by the invention is the effective part extract of total flavonoids, which is prepared from the dry over-ground parts of plant agriophyllum squarrosum of chenopodiaceae agriophyllum in China by separation and purification. According to the effective part extract of the agriophyllum squarrosum total flavonoids disclosed by the invention, the total flavonoid content exceeds 50% (ultraviolet method); the content of isorhamnetin-3-O-rutinoside is 5-10% (high efficiency liquid chromatography). The preparation method disclosed by the invention is economical in technology, simple and convenient, and applicable to industrial production. The effective part extract of the total flavonoids has a pharmacological effect of reducing blood sugar, can be prepared into the dosage forms, such as capsules, tablets, granules and oral liquid, and compound preparations thereof, and can be applied to treatment of diabetes mellitus.

The invention discloses a two-layer crystal whisker-shaped fluorine-doped hydroxyapatite coating on magnesium alloy and a microwave preparation method thereof, and belongs to the technical field of degradable magnesium alloy implantation materials. The fluorine-doped hydroxyapatite coating is of a two-layer structure. The length and diameter of the bottom-layer fluorine-doped hydroxyapatite crystal whisker is 0.5-0.8 micrometer and 50-70 nm respectively. The length and diameter of the top-layer fluorine-doped hydroxyapatite crystal whisker is 1.0-2.0 micrometers and 30-50 nm respectively. The microwave preparation method mainly comprises the steps that a conversion coating solution containing Ca2+, PO43- and F- is prepared, and magnesium alloy subjected to alkali treatment is placed in the conversion coating solution and subjected to microwave heating for 10-30 min. The microwave preparation method is applicable to magnesium alloy of any shapes and sizes, the technology is simple, energy is remarkably saved, and the application and popularization value is huge.

The invention relates to the field of composite material preparing, and discloses a pressure infiltration preparing method for a metal matrix composite material. The method comprises the steps that materials are prepared, the materials are sequentially arranged in a wrapping sleeve, the wrapping sleeve is placed in a die, the die is placed in a hot press device, the position of the die in the hot press device is adjusted, preparing is conducted according to certain temperature and pressure parameters, and finally the metal matrix composite material with the good performance is obtained. According to the preparing technology, the composite material with components comprising the high volume fraction constituent elements hard to dissolve can be simply, rapidly and economically prepared; by means of the technology method, the obtained composite material has high stacking density and material consistency, and the interface bonding force between the constituent elements of the obtained composite material is high.

The invention relates to a Chinese medicine composition for controlling metabolic diseases as well as a preparation method and application thereof, belongs to the technical field of traditional Chinese medicine, and in particular relates to a Chinese medicine composition prepared from astragalus membranaceus, kudzu vine root and white mulberry root-bark. The Chinese medicine composition has the effects of inhibiting adipocyte proliferation and reducing blood fat and blood sugar and can be applied to preparation of medicaments or health-care products for controlling the metabolic diseases.

The invention provides a preparation method of a surface-enhanced Raman substrate with a layered micro / nano structure, which comprises the following steps: irradiating the surface of a silicon or silicon dioxide substrate by using nanosecond to femtosecond laser pulses to form a micro-pit array; cleaning and drying the substrate on which the micro-pit array is formed; and depositing and forming asilver film in the micro-pit array area of the substrate. According to the method, the MA-SERS with the layered micro / nano structure can be prepared through laser treatment from nanosecond to femtosecond and magnetron sputtering; the prepared MA-SERS has good wettability, the contact angle is about 150 degrees, Meanwhile, the enhancement factor of surface enhanced Raman scattering can reach 1.3 *10 < 7 > and is sufficient to detect the molecular level; the preparation process is economical and efficient; the prepared MA-SERS has a wide application prospect in detection of biological medicines, pesticide residues and an ultralow-concentration solution polluted by the environment.

The invention relates to an environment-friendly preparation method of multi-hydroxyl polymer molecular brush, belonging to the technical field of the synthesis of polymer. The multi-hydroxyl polymer brush which is good in protein adsorption resistance and easily modified by a bio-molecular detection probe is synthesized on the surface of a solid support material by surface-initiated atom transfer radical polymerization under the environment-friendly conditions, i.e. room temperature, pure water, nontoxicity and the like. The preparation method of the multi-hydroxyl polymer molecular brush comprises the following steps of: surface treatment of a substrate, assembly of an amino silane coupling agent, modification of an initiator, preparation of the multi-hydroxyl polymer molecular-modified substrate, and functional modification of the active halogen atom at the tail end of the polymer. The polymerization of the environment-friendly preparation method can be operated under the full water phase and the room temperature, and is simple in technology, non-toxic and environment-friendly; the end group of the obtained molecular brush can be functionally modified; and the polymer contains a mass of end hydroxyl, so that the molecular brush is good in water solubility, high in protein adsorption resistance, and suitable for biology, medicine, drug and food safety detection kits, biological drug carriers, heterogenous catalyst carriers, water absorbing materials and the like.

The invention discloses a preparing method of a dithiocarbamic acid-based functionalized carbon nano tube. The preparing method comprises the first step of conducting hybrid reaction between the carbon nano tube and mixed acid, and then drying the mixture to obtain acid-treated carbon nano tube; the second step of putting the acid-treated carbon nano tube into an organic solvent, adding thionyl chloride into the solvent, conducting backflow for 1-5 h under the condition that the temperature is 65-80 DEG C, then adding amine into the solvent, conducting the backflow for 3-10 h under the condition that the temperature is 60-90 DEG C, and then drying the mixture to obtain an amination carbon nano tube; the third step of adding the amination carbon nano tube into a sodium hydroxide solution, and then adding carbon disulfide into the sodium hydroxide solution to be subjected to reaction to obtain the dithiocarbamic acid-based functionalized carbon nano tube. According to the preparing method, the dithiocarbamic acid-based functionalized carbon nano tube prepared through the preparing method has good dispersibility in a water system, a contact area between the carbon nano tube and pollutant heavy metals is increased, the surface of the carbon nano tube contains a large number of activated functional groups at the same time, the advantages of the carbon nano tube can be given play to the maximum, and the adsorptive property of the carbon nano tube is improved.

The invention provides light extinction polyester and a low-gloss elastic composite fiber. The light extinction polyester comprises the following component in percentage by mass: 0.5-5.0% of titaniumdioxide nano granules, wherein the particle size of the titanium dioxide nano granules is 20-200 nm; detection with incident rays of 45 degrees shows that the gloss of the light extinction polyester is less than 20. The titanium dioxide nano granules are uniformly dispersed in the light extinction polyester and are not agglomerated. The mass ratio of a PET component to a PTT component in the low-gloss PET / PTT elastic composite fiber is (40:60)-(60:40), the composite fiber is formed through a composite melting spinning component, titanium dioxide is uniformly dispersed in the composite fiber, no agglomeration phenomenon is caused, the particle size of the titanium dioxide dispersed in the fiber is less than 10 [mu]m, the strength of the composite elastic fiber is greater than 3.0 cN / dtex, the gloss on the surface of the fiber is less than 20, and the elastic recovery rate is greater than or equal to 90%.

The invention relates to a biological sensing electrode for detecting atrazine and manufacturing method thereof. The biological sensing electrode is composed of a titanium plate, vertical and orderly titanium dioxide nanotubes grown on the surface of the titanium plate through anode oxidation method, and modified tyrosinase in the tubes and on the surfaces thereof; a titanium dioxide nanotube electrode (TiO2-NTs) on the surface of the titanium plate is manufactured from the vertical and orderly titanium dioxide nanotubes grown on the surface of the titanium plate through anode oxidation method; and then the titanium dioxide nanotube electrode is pre-treated at constant potential of -1.5 V in 2 mol / L NH4Cl solution for 3 seconds; Tyr / TiO2-NTs is prepared by getting 20 muL 50U.muL-1 tyrosinase solution and 5 muL 2.5% of glutaral pentanedial with a micro-injector to cover on the surface of the electrode so as to prepare Tyr / TiO2-NTs. In comparison with existing technology, the manufacturing method of the invention is featured by simple process, low cost and good repeatability; when used for detecting low-concentration atrazine in the environment, detection stability is high; detection range is 0.2 ppt to 10 ppm; and limit of detection is 0.1 ppt.

The preparation method of silico-titanium compound oxide with high specific surface area and high dispersity adopts ethyl metasilicate as silicon source, adopts titanium tetrachloride as titanium source, uses acetic acid as hydrolysis catalyst, makes them undergo the processes of cohydrolysis and polycondensation in ethyl alcohol medium and synthesize the invented product by one-step process.

The invention discloses a preparation method for an energy-saving polyvinyl chloride tubular product. The preparation method comprises the steps of pouring all raw materials except for titanium dioxide and CPE into a stirring kettle, mixing the raw materials at the rotating speed of 55-70r / m for 1 hour, then putting the raw materials into a double-screw extruder, kneading the raw materials under the temperature of 140-150 DEG C for 8-10 minutes, adding the rest of the raw materials according to the weight parts, performing mixing and granulation, controlling the temperature at 150-160 DEG C, and performing a forming technology to obtain a finished product. The tubular product prepared by the preparation method disclosed by the invention is stable in quality and high in strength and has a smooth surface. The preparation technology is energy-saving, economical and environment-friendly.

The invention discloses a bimetallic alloy-halloysite composite catalyst, a preparation method and application thereof. The present invention immerses the modified tubular halloysite in a mixed solution of platinum and gold precursors, and prepares a catalyst of bimetallic alloy nanoparticles uniformly loaded with platinum and gold inside and outside the halloysite tube through an in-situ reduction method; The bimetallic alloy nanoparticles supported by the catalyst exhibit high dispersion and excellent alloy effect, and can efficiently catalyze the oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), and The yield of FDCA is as high as 95% or more; at the same time, the catalyst uses cheap and stable tubular halloysite as a carrier, which is beneficial to the recovery and reuse of the catalyst and reduces the cost; in addition, the preparation method of the catalyst has the advantages of simple process and mild conditions. It has broad application prospects in the field of catalytic oxidation of HMF to prepare FDCA.

The invention provides a pervone vincamine injection and a preparation process thereof, relating to the technical field of pervone vincamine injections and preparation processes thereof. The injection is a solution type injection or frozen powder injection, and the solution type injection is divided into a water injection and a drug-carried type infusion solution, wherein the contained active constituent is the pervone vincamine, and the pervone vincamine can exit in the form of soluble salt. The invention has the advantages that compared with the prior art, the injection has the characteristics of unique formulation, convenient use, fast curative effect, safety, reliability and the like, and is applied to the clinical treatment, in particular to the intravenous injection for some patients who can not swallow drugs due to all kinds of reasons or can not carry out the oral administration due to the gastrointestinal tract dysfunction; and the preparation process is simple, convenient and economical, is easy for industrial production, has high economic and social benefits, and solves the key problem that the solubility of the pervone vincamine is lower in water because the pervone vincamine belongs to alkaloids in tryptophane system. It is especially significant to develop a pervone vincamine aqueous solution applied to the clinical treatment.

The invention provides an economical corrosion-resistant J55 seamless pipe and a manufacturing method thereof. The economical corrosion-resistant J55 seamless pipe comprises, by weight, 0.28%-0.33% ofC, 0.15%-0.40% of Si, 1.30%-1.50% of Mn, 0.20%-0.40% of Cr, 0.15%-0.25% of Cu, 0.01%-0.03% of Ti, no more than 0.018% of P, no more than 0.010% of S, and the balance Fe and inevitable impurities. Themanufacturing method of the economical corrosion-resistant J55 seamless pipe comprises the steps that a pipe blank is obtained through smelting in a converter, refining outside the converter, vacuumtreatment, continuous casting and continuous rolling, the pipe blank is heated to the temperature of 1200-1260 DEG C in an annular furnace, and MPM continuous rolling is conducted, wherein the temperature after perforation is 1160-1200 DEG C, and the sizing temperature is 720-750 DEG C. The economical corrosion-resistant J55 seamless pipe is uniform in structure and good in mechanical property; and the manufacturing technique of the economical corrosion-resistant J55 seamless pipe is easy to implement and economical.

The invention discloses a preparation method and application of a thiol-functional carbon nano tube (CNT). The thiol-functional CNT is successfully prepared by adopting a one-step method, has the characteristics of simple steps, short reaction time, high grafting rate and the like, is good in performance and wide in application and can serve as a mercury ion adsorbent, and the measured maximum adsorption amount is 2300mg / g, namely 2.3g of mercury can be adsorbed by 1g of adsorbent. The thiol-functional CNT also can serve as an electrochemical sensor for measuring the mercury ion concentration in sewage. Experiments prove that the detection limit of a modified electrode on mercury ions Hg (II) is 3.0nM (S / N=3), the linear range is 5-90nM, the CNT can be used for detecting Hg (II) in an actual water sample, and the recovery rate is in a range from 90 percent to 95 percent.

The invention discloses double-embedded beta-carotene starch-based nano-particles as well as a preparation method and application of the double-embedded beta-carotene starch-based nano-particles. The preparation method comprises the following steps: carrying out enzymolysis treatment and precipitation grading treatment on starch to prepare dextrin; butyric anhydride is adopted to carry out acylation treatment on dextrin, and butyrylated dextrin is prepared; carrying out embedding treatment on the butyrylated dextrin and beta-carotene by adopting a coprecipitation method, so as to prepare a butyrylated dextrin / beta-carotene inclusion compound; the gliadin is subjected to ultrasonic modification treatment, and ultrasonic modified gliadin is prepared; enabling an alkaline mixed system containing the butyrylated dextrin / beta-carotene inclusion compound, the ultrasonic modified gliadin and the beta-carotene to be subjected to self-assembly, so as to prepare the starch-based nanoparticles with the double embedded beta-carotene. The double-embedded starch-based nanoparticles prepared by the method have relatively high inclusion rate and high environmental stress resistance stability, and have wide application prospects in the field of bioactive substances or emulsions.

The invention specifically relates to a preparation method of a solid honey and chrysanthemum particle. The preparation method comprises the following steps: adding dry chrysanthemum and water into a distillation still, boiling the chrysanthemum and water so as to obtain chrysanthemum extract; adding honey and erythritol into the chrysanthemum extract, then adding seed crystals into the chrysanthemum extract to grow crystals, and finally cooling to crystallize so as to obtain the solid honey and chrysanthemum particle. The solid honey and chrysanthemum particle product prepared by the method mentioned above has the advantages of good dispersibility, uniformity, instant capacity, and fluidity, is convenient to bring with, use and drink, furthermore, and does not contain any cane sugar, so that modern people who are afraid of chronic metabolism diseases caused by intakes of too much cane sugar, such as sub-health, obesity, cardiovascular and cerebrovascular diseases, and the like, can safely enjoy the product. The preparation method does not contain a drying process; besides, the operation temperature of the preparation method is 100 DEG C lower than that of an erythritol melting and co-crystallizing technology, so that the preparation technology is simpler, more economic, and more energy-saving.

The invention discloses a bimetallic alloy-halloysite composite catalyst and a preparation method and application thereof. Modified tubular halloysite is impregnated in a precursor mixed solution of platinum and gold, and the catalyst of bimetallic alloy nanoparticles with platinum and gold uniformly loaded inside and outside a halloysite tube is prepared by an in-situ reduction method; the bimetallic alloy nanoparticles loaded by the catalyst show high dispersity and excellent alloy effect, 5-hydroxymethylfurfural (HMF) can be efficiently catalyzed and oxidized into 2, 5-furandicarboxylic acid (FDCA), and the yield of FDCA is as high as 95% or above; meanwhile, the catalyst takes cheap and stable tubular halloysite as a carrier so that the catalyst is easy to recycle and reuse, and the cost is reduced; in addition, the preparation method of the catalyst has the advantages of simple process, mild conditions and the like, and has a wide application prospect in the field of preparation of FDCA by catalytic oxidation of HMF.

The invention relates to a condensation dryer (1), comprising a drying chamber (3) for items to be dried, a process air circuit (2), in which the process air can be conducted across the items to be dried by means of a fan (19), and a heat pump circuit (13, 14, 15, 23) for alternately heating and cooling the process air. At least one secondary fluid circuit (12, 20 or 16, 21) is provided between the process air circuit (2) and the heat pump circuit (13, 14, 15, 23). The invention also relates to a method for operating said condensation dryer (1).

The invention discloses dual-phase heterogeneous light-weight high-strength steel and a preparation method thereof, and belongs to the technical field of light-weight high-strength automobile steel. The steel comprises the following chemical components in percentage by weight: 0.1-0.3 wt.% of C, 10-14 wt.% of Mn, 6-8 wt.% of Al, 0.5-0.7 wt.% of Si, less than or equal to 0.01 wt.% of P, less than or equal to 0.005 wt.% of S and the balance of Fe and inevitable impurities. The as-cast structure of the dual-phase heterogeneous light-weight high-strength steel is a complex-phase structure containing coarse fishbone-shaped delta ferrite and coarse granular austenite, and the structure of the prepared finished dual-phase heterogeneous light-weight high-strength steel plate is strip-shaped delta ferrite and fine equiaxed austenite. The yield strength of a finished biphase heterogeneous light high-strength steel plate is 388-807 MPa, the tensile strength is 656-945 MPa, the ductility is 33-55%, the product of strength and elongation is 31-38 GPa%, and the density is 6.9-7.1 g / cm<3>.

The invention provides a capsule of a cockroach medicine and a preparation method thereof. The capsule is prepared from 60-70 parts by weight of cockroach powder, 0-40 parts by weight of a binder and 0-30 parts by weight of a diluent. The use amounts of the binder and the diluent are not zero simultaneously. The invention also provides the preparation method of the capsule. The capsule can effectively reduce a peculiar smell of cockroach medicine powder, improve product safety and provides a novel choice for clinical drugs or health products.

The invention provides a tablet of a cockroach medicine and a preparation method thereof. The tablet is prepared from 60-70 parts by weight of cockroach powder, 0-40 parts by weight of a binder, 0-30 parts by weight of a diluent, 0.5-3 parts by weight of a disintegrating agent and 0-2 parts by weight of a lubricant. The use amounts of the binder and the diluent are not zero simultaneously. The invention also provides the preparation method of the tablet. The tablet can effectively reduce a peculiar smell of cockroach medicine powder, improve product safety and provides a novel choice for clinical drugs or health products.

The invention belongs to the field of oral cavity materials, and in particular relates to a method for preparing a material for treating dental caries, that is, a method for preparing silver ammonia fluoride. The present invention uses silver nitrate, sodium hydroxide, ammonium fluoride and ammonia water as raw materials, provides a new idea for the preparation of silver ammonia fluoride solution, realizes the refinement of the preparation process through gradient heating, removes excess raw materials, and avoids the generation of by-products and precipitation. The preparation process is economical, environmentally friendly and stable, and can prepare a silver ammonia fluoride solution with less impurities, less by-products and long-term storage stability.

The invention discloses a high-current contact and a flat connector, the contact comprises a rectangular sheet body, one side of the rectangular sheet body is provided with a plurality of warped elastic sheets, the other side of the rectangular sheet body is provided with a plurality of bent elastic sheets, the warped direction of the warped elastic sheets is the same as the bending direction of the bent elastic sheets, and the warped elastic sheets and the bent elastic sheets are arranged on the rectangular sheet body. And a plane determined by the end part of the warped elastic sheet and the end part of the bent elastic sheet is parallel to the rectangular sheet body. According to the large-current contact piece and the flat connector, the end portions of the multiple warping elastic pieces form the first contact area, the end portions of the multiple bending elastic pieces form the second contact area, when the contact piece makes contact with an external insertion piece, the first contact area and the second contact area make contact with the external insertion piece together, the conductive cross section is improved, the electric loss is greatly reduced, and the service life of the contact piece is prolonged. Therefore, larger current can be borne; the structure is in a sheet shape, occupies a small space relative to a cylinder, can realize small-space application, and is simpler and more economical in manufacturing process relative to a cylinder structure, so that the production cost is reduced.

The invention provides a pervone vincamine injection and a preparation process thereof, relating to the technical field of pervone vincamine injections and preparation processes thereof. The injection is a solution type injection or frozen powder injection, and the solution type injection is divided into a water injection and a drug-carried type infusion solution, wherein the contained active constituent is the pervone vincamine, and the pervone vincamine can exit in the form of soluble salt. The invention has the advantages that compared with the prior art, the injection has the characteristics of unique formulation, convenient use, fast curative effect, safety, reliability and the like, and is applied to the clinical treatment, in particular to the intravenous injection for some patients who can not swallow drugs due to all kinds of reasons or can not carry out the oral administration due to the gastrointestinal tract dysfunction; and the preparation process is simple, convenient and economical, is easy for industrial production, has high economic and social benefits, and solves the key problem that the solubility of the pervone vincamine is lower in water because the pervone vincamine belongs to alkaloids in tryptophane system. It is especially significant to develop a pervone vincamine aqueous solution applied to the clinical treatment.

The invention relates to an eutectic product of honey and erythritol and a cocrystallization method of the eutectic product. The cocrystallization method adopts the technical scheme that the cocrystallization method comprises the steps of adding the honey into an erythritol fused solution, preparing a clear cocrystallization mother solution, cooling the cocrystallization mother solution to 100-120 DEG C, adding seed crystals, growing a grain, then conducting cooling crystallization, and obtaining the eutectic product of the honey and the erythritol. The eutectic product and the cocrystallization method have the characteristics of low production cost and short production cycle; the additional drying operation is not required; the moisture content of the product can be as low as 0.5wt%; and the obtained eutectic product of the honey and the erythritol has a single endothermic peak during analysis of a differential scanning calorimeter (DSC), has the advantages of stable crystal structure, bright and clean crystal surface, uniform particle size, low hygroscopicity and the like, is good in oral dissolving feel, reserves specific natural components of the honey, has perfect sweet taste and excellent physical properties, and can be widely applied to the industrial fields of food, drugs, cosmetics and the like.