911results about How to "Save raw materials" patented technology

The invention relates to a preparation method of a self-assembled monomolecular layer in a perovskite cell, and belongs to the technical field of solar cells, and the preparation method comprises the following steps: S1, preparing an SAM layer; step S1.1, soaking the conductive glass substrate into the preheated SAM first precursor solution; step S1.2, quickly soaking in a second SAM precursor solution; s1.3, taking out and removing the residual solvent to obtain an SAM layer; step S2, annealing; s3, preparing a perovskite light absorption layer and other functional layers; and depositing a perovskite light absorption layer and other functional layers on the SAM layer in sequence, and finally preparing a complete perovskite solar cell. According to the method, the appropriate high-boiling-point solvent is selected to prepare the SAM precursor solution, then the conductive substrate is rapidly soaked in the SAM precursor solution under the condition that the high temperature is kept, SAM molecules are rapidly self-assembled within seconds at the high temperature, the self-assembled molecular layer is more uniform and compact, the perovskite buried bottom interface has fewer defects, the interface contact is better, and the performance of the conductive substrate is improved. And the efficiency and the stability of the perovskite cell are obviously improved.

The invention belongs to the technical field of battery positive electrode preparation, and particularly relates to a mixed coating coated nickel-rich layered oxide positive electrode and application thereof. The mixed coating coated nickel-rich layered oxide positive electrode is an NCM system positive electrode material, and the proportion of a Ni material in an NCM ternary system is greater than or equal to 92 wt%; the ratio content of Ni of the nickel-rich layered oxide positive electrode coated with the mixed coating in three elements of Ni, Co and Mn is greater than or equal to 92 mol%; and the nickel-rich layered oxide positive electrode coated with the mixed coating is coated with Li3PO4 and / or Li3BO3 and / or LiNbO3. The positive electrode material provided by the invention can effectively reduce the space charge layer effect and interface side reaction between the positive electrode and the electrolyte, the lithium ion migration efficiency is high, and the cycle performance of the assembled battery is good.

The invention belongs to the field of material preparation and chemical engineering, and particularly relates to an N-doped modified MOFs (Metal-Organic Frameworks) derived core-shell nanoreactor as well as a preparation method and application thereof. The preparation method comprises the following steps: taking cobalt as a node metal, synthesizing an N-doped modified MOFs material with an organic ligand and a nitrogen source through a hydrothermal reaction, then coating the surface of the material with porous silicon dioxide, and preparing the N-doped modified MOFs derived core-shell nanoreactor through a two-step calcination method. The MOFs derived core-shell nanoreactor prepared by the invention has a large specific surface area, a rich pore structure and excellent catalytic activity and stability, and is high in catalytic activity, good in recycling stability and suitable for large-scale popularization and application when being used as a catalyst for alpha, beta-unsaturated aldehyde transfer hydrogenation.

The invention relates to a high-performance room-temperature self-repairing polyurethane elastomer and a preparation method thereof.The polyurethane elastomer is synthesized from diisocyanate containing asymmetric aliphatic rings, polyether glycol or polyester glycol and a dynamic hydrogen bond chain extender, linear and non-linear hydrogen bonds exist in a polyurethane molecular chain at the same time, and the linear and non-linear hydrogen bonds are different from each other. The existence of the linear hydrogen bonds endows the material with good mechanical properties, the non-linear hydrogen bonds also enable the polyurethane elastomer to maintain the strength and realize the self-repairing effect at room temperature, and the high steric hindrance of the asymmetric aliphatic ring structure can inhibit the crystallization of the polyurethane chain segment, thereby enhancing the transparency of the polyurethane. Compared with the prior art, the polyurethane elastomer prepared by the invention has excellent tensile property, tensile strength of more than 30MPa, fracture strain of more than 1000%, good self-repairing property, repair efficiency of more than 80% after repairing for 48 hours at room temperature under the assistance of trace water, and good transparency.

The invention relates to a rigid-flex board and a manufacturing method thereof. A first covering film and a second covering film are respectively attached to the upper surface and the lower surface of a preset flexible area of a flexible board; a first flexible through window is formed in the position of the first prepreg in the preset flexible area, and a second flexible through window is formed in the position of the second prepreg in the preset flexible area; a first adhesive tape is pre-attached to the first rigid plate, a second adhesive tape is pre-attached to the second rigid plate, and the first adhesive tape and the second adhesive tape are milled; and sequentially laminating the first rigid plate, the first adhesive tape, the first prepreg, the first covering film, the flexible plate, the second covering film, the second prepreg, the second adhesive tape and the second rigid plate, arranging the first adhesive tape in the first flexible through window, arranging the second adhesive tape in the second flexible through window, and laminating to obtain the rigid-flexible combined plate. Compared with the prior art, the rigid-flex printed circuit board can be prevented from being attacked by liquid medicine and kept intact, the manufacturing reliability and the production efficiency of the rigid-flex printed circuit board are improved, and the production cost is reduced.

The invention discloses an organic carbonyl compound electrode material, a preparation method and application of the organic carbonyl compound electrode material in a lithium ion battery, and the organic carbonyl compound electrode material is bipyridino [3 ', 2': 5, 6; the invention relates to an organic carbonyl compound electrode material, which is prepared from 2, 2 ', 3': 7, 8] quinoxaline [2, 3-i] bipyridino [3, 2-a: 2 ', 3'-c] phenazine-10, 21-diquinone and 1, 2, 4, 5-tetraamino p-benzoquinone and 1, 10-phenanthroline-5, 6-diketone through a dehydration condensation reaction. When the organic electrode material is used as a positive electrode material to be applied to a lithium ion battery, due to the fact that the organic electrode material contains a large conjugated system, the organic electrode material has good dissolution inertness in electrolyte and is beneficial to electron transmission, and therefore the cycling stability and the rate performance of the battery are improved. In addition, multiple active sites provide more redox active sites to coordinate with lithium ions, so that reversible lithium storage is realized, and relatively high capacity is shown.

The invention discloses a method for removing fluorine from high-fluorine tungsten ore, which comprises the following steps of: S1, carrying out ball milling on the high-fluorine tungsten ore to enable the granularity of ore pulp to be less than 325 meshes, and enabling the obtained ore pulp to enter the next procedure; on one hand, fluorine is removed from the source, the fluorine is concentrated and enriched from the source, the fluorine is removed by adding the fluorine removal agent, the fluorine element is prevented from entering the main process to pollute the production process and the product, and compared with the fluorine removal in the production wastewater, the fluorine removal difficulty and the wastewater fluorine removal treatment cost are reduced; on the other hand, excessive sodium hydroxide after the soda boiling decomposition process is concentrated, enriched and recycled, and the defluorinated sodium hydroxide mother liquor is returned to the main process for pulp mixing and soda boiling for use, so that the use amount of new alkali in the soda decomposition process is greatly reduced, the production cost is saved, and the economic benefits of enterprises are increased; the method is simple to operate, cheap in raw materials, low in energy consumption and easy to industrialize.

The invention discloses a preparation method and application of a Cu2O-SnO2 / g-C3N4 ternary composite photocatalytic material.The preparation method comprises the steps that firstly, carbon-nitrogen precursor powder is roasted to obtain g-C3N4 powder, then the g-C3N4 powder, tin oxide powder, a surfactant, a copper source and deionized water are evenly mixed to obtain a mixed solution, then a sodium hydroxide solution is added into the mixed solution drop by drop, the mixed solution is stirred to be uniform, and the Cu2O-SnO2 / g-C3N4 ternary composite photocatalytic material is obtained. The preparation method comprises the following steps: adding the Cu2O-SnO2 into a reaction kettle, adding ascorbic acid to obtain a mixed solution, carrying out a hydrothermal reaction on the mixed solution, cooling to normal temperature, and finally carrying out centrifugal separation, washing, drying and grinding to obtain the Cu2O-SnO2 / g-C3N4 ternary composite photocatalytic material. According to the preparation method disclosed by the invention, the three materials of Cu2O, SnO2 and g-C3N4 are used for constructing a dual-action mechanism of Z-schema and a p-n junction, so that the photocatalytic performance is effectively improved.

The invention discloses a purification device and a purification method of tetramethylsilane. A raw material tank in the purification device is used for accommodating tetramethylsilane. The light component removal rectifying tower is communicated with the raw material tank and is used for receiving tetramethylsilane and removing low-boiling-point impurities in the tetramethylsilane. The first heavy component removal rectifying tower is communicated with the light component removal rectifying tower and is used for removing high-boiling-point impurities of tetramethylsilane; the first gasifier is communicated with the first de-heavy rectifying tower and is used for gasifying tetramethylsilane; the first adsorption unit is communicated with the first gasifier and is used for adsorbing impurities of which the boiling point is close to that of tetramethylsilane; and the second de-heavy rectifying tower is communicated with the first adsorption unit and is used for receiving the tetramethylsilane adsorbed by the first adsorption unit and removing high-boiling-point impurities in the tetramethylsilane. And the second gasifier is communicated with the second de-heavy rectifying tower and is used for gasifying tetramethylsilane. And the second adsorption unit is communicated with the second gasifier and is used for adsorbing impurities with the boiling point close to that of tetramethylsilane. The purification device and the purification method are good in purification effect and low in purification cost.

The invention discloses an alkali-soluble dihydroquinoline phenazine organic active substance, an electrolyte containing the same and an application of the electrolyte, the alkali-soluble dihydroquinoline phenazine organic active substance has a molecular structural formula shown in a formula (I), in the molecular structural formula, R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from-H,-OH,-COOH,-SO3H,-Ar,-PO3H,-OCxH2xCOOH,-OCyH2ySO3H and-OCzH2zPO3H, and at least one alkali-soluble group is contained. The active material has the advantage of multi-electron transfer, can accumulatively transfer 4 equivalent electrons, and has the potential of constructing a high-energy-density flow battery.

The invention discloses a negative-electrode-free sodium battery based on hexagonal boron nitride modified electrolyte and a current collector, and belongs to the technical field of energy storage materials, the electrolyte comprises hexagonal boron nitride h-BN, sodium hexafluorophosphate NaPF6 and diethylene glycol dimethyl ether G2; the concentration of the sodium hexafluorophosphate is 1 mol / L, and the concentration of the hexagonal boron nitride is 150 g / L. And the current collector comprises a conductive agent SuperP, nano dispersed phase hexagonal boron nitride h-BN and a binder polyvinylidene fluoride (PVDF) in a mass ratio of 5: 5: 1, and the blade coating thickness is 20 [mu] m. The negative-electrode-free sodium battery comprises a battery shell, a positive pole piece, an electrolyte, a current collector and a diaphragm located between the positive pole piece and a negative pole piece are arranged in the battery shell, the electrolyte is an organic electrolyte with hexagonal boron nitride, and the current collector is a current collector with a nano dispersed phase. According to the synergistic effect of the current collector and the electrolyte, the problem that the negative-electrode-free sodium battery cannot work under large current is solved.

The invention belongs to the technical field of materials and harmful pollutant removal, and particularly relates to a graphite-phase carbon material for adsorbing and removing mycotoxin in food as well as a preparation method and application of the graphite-phase carbon material. The preparation method of the graphite-phase carbon material comprises the following steps: at normal temperature and normal pressure, ball-milling graphite or a mixture of graphite and ferroferric oxide into solid powder, so as to prepare the graphite-phase carbon material for adsorbing and removing mycotoxin in food. The graphite phase carbon material is good in adsorption effect; the composition can be used for preparing aflatoxin, zearalenone, ochratoxin, deoxynivalenol and T-2 toxin in various oils such as peanut oil, soybean oil, corn germ oil, rapeseed oil, sesame oil, walnut oil, linseed oil, rice bran oil, wheat germ oil, edible plant blend oil, sunflower seed oil, olive oil, camellia oleosa seed oil, perilla seed oil and almond oil. And various fungaltoxins such as fumonisins are removed, so that the pollution level of the fungaltoxins in the edible vegetable fat can be effectively reduced.

The invention relates to the technical field of organic fertilizers, in particular to a long-acting slow-release charcoal-based microbial compound fertilizer and a preparation method thereof. The long-acting slow-release biochar-based microbial organic fertilizer is prepared from the following raw materials in parts by mass: 10 to 20 parts of corn grit, 5 to 10 parts of coated biochar, 1 to 3 parts of monopotassium phosphate, 30 to 40 parts of livestock and poultry manure, 0.001 to 0.01 part of lanthanum ammonium nitrate, 30 to 40 parts of inorganic fertilizer, 0.2 to 0.3 part of microbial agent and 1.5 to 2 parts of epsilon-polylysine, the coated biochar is prepared by the following steps: adding biochar and dopamine hydrochloride into water, mixing, stirring at 30-40 DEG C for 20-30 minutes, adding tris (hydroxymethyl) aminomethane, stirring for 20-30 hours, centrifuging, washing, drying, crushing, feeding into a tubular furnace, keeping the temperature at 300-500 DEG C for 20-40 minutes under the protection of nitrogen, and cooling to room temperature.

The present invention relates to a colloidal gold card for detecting pesticide residues and a preparation method and application thereof. The colloidal gold card comprises a bottom plate and a sample pad, a gold binding pad, a nitrocellulose membrane and a water-absorbing pad which are sequentially overlapped on the bottom plate. The nitrocellulose membrane is provided with a detection line coated with a pesticide antigen and a quality control line coated with a secondary antibody. The gold binding pad contains colloidal gold-labeled pesticide antibodies, sucrose, disodium hydrogen phosphate dodecahydrate, bovine serum albumin, sodium caseinate, trehalose and polyethylene glycol. In the colloidal gold card, the gold binding pad contains sucrose, disodium hydrogen phosphate dodecahydrate, bovine serum albumin, sodium caseinate, trehalose and polyethylene glycol, which can effectively protect antigens and antibodies, eliminate the influence of tea polyphenols, flavonoids, pigments and minerals in tea on color development, and improve the anti-interference property of the colloidal gold card.

The invention discloses epigallocatechin gallate starch nanoparticles as well as a preparation method and application thereof, and belongs to the technical field of medicinal chemistry. According to the method, high-proportion branched-chain cassava starch is used as a raw material, ultrasonic microwave assistance is adopted, in the nanometer starch alcohol precipitation process, epigallocatechin gallate is synchronously packaged to form nanometer-level epigallocatechin gallate starch nanometer particles, and embedding of epigallocatechin gallate is completed. The embedding rate of the epigallocatechin gallate starch nanoparticles can reach 50.20%, the drug loading capacity can reach 311mg / g, the drug slow release performance is obvious in the process of simulating gastrointestinal digestion, the sustained release time can be 20 hours, the drug release capacity can reach 72.33% and 90.10% respectively, and the preparation process is simple, easy to operate, low in preparation cost and suitable for large-scale production and application.

The invention discloses application of carbazole derivatives C1-1 to C1-12, C2-1 to C2-5, C3-1 to C3-10, C4-1 to C4-3 and C5-1 to C5-2 to prevention and treatment of pathogenic bacteria of cow mastitis, and belongs to the field of natural medicinal chemistry. The compound disclosed by the invention has good inhibitory activity on the pathogenic bacteria, such as Streptococcus agalactiae ATCC27956, Streptococcus dysgalactiae ATCC27957 and Staphylococcus aureus, of the mastitis of the dairy cow, and the compound disclosed by the invention has good inhibitory activity on the pathogenic bacteria, such as Streptococcus agalactiae ATCC27956, Streptococcus dysgalactiae ATCC27957 and Staphylococcus aureus. The carbazole derivative has the characteristics of simple structure, easiness in synthesis, low price, wide application and the like, and has further research and development values in the aspect of preventing and treating the cow mastitis.

The invention belongs to the technical field of welding, and discloses a wire harness welding method and a wire harness welding assembly. The method specifically comprises the following steps: providing a first wire harness, a second wire harness, a terminal and a set of ultrasonic welding system; placing the first welding section of the first wire harness on a bottom die; the terminal is arranged on the first welding section, and the first welding surface abuts against the first welding section; a second welding section of a second wire harness is arranged on the terminal, and the second welding surface abuts against the second welding section; and a welding head is placed on the second welding section, the ultrasonic welding system is started, and the first welding section and the second welding section are welded to the first welding face and the second welding face through the welding head correspondingly. According to the wiring harness welding method, double-face welding of the terminal can be achieved, raw materials can be saved, and cost can be saved. And through double-sided welding of the terminals, the contact area between the core wires of the first wire harness and the second wire harness and the terminals is increased, so that the conductivity and the heat-conducting property are improved. The wiring harness welding assembly saves raw materials, and is low in cost and good in electrical conductivity and thermal conductivity.

The invention discloses an ultra-large type high-speed plastic extrusion flat film and flat filament unit which comprises an extruder, a water tank, a film lifting and filament cutting device, a hot air oven, a drafting mechanism, a shaping mechanism and a filament collecting mechanism. The drafting mechanism comprises a drafting rack, a drafting transmission shaft, a drafting shaft unloading device, a drafting roller, a drafting roller connecting sleeve, a drafting roller tensioning sleeve and a drafting roller motor; the number of the drafting transmission shafts is at least three, the drafting transmission shafts are arranged in parallel, the drafting shaft unloading devices extend to the middles of the drafting transmission shafts from one ends of the drafting transmission shafts, and at least two drafting roller connecting sleeves arranged in the radial direction of the drafting roller are arranged in the drafting roller. And a drafting roller tensioning sleeve is arranged between the drafting roller connecting sleeve far away from the drafting rack and the drafting transmission shaft. The ultra-large type high-speed plastic extrusion flat film and flat filament unit is high in operation speed, high in production efficiency, good in stability, low in energy consumption, capable of effectively reducing the production cost, excellent in product mechanical performance and stable in quality.

The utility model discloses a two-wire-harness integrated fixing structure which comprises a plastic plug and a rubber sleeve, the plastic plug comprises a limiting lantern ring and two guide arms which coaxially extend, the limiting lantern ring is provided with a first opening, the two guide arms are connected to the same side of the limiting lantern ring in a symmetrical distribution mode, and the rubber sleeve is provided with a second opening. The two guide arms are matched to form two limiting channels which communicate with each other and are symmetrically distributed in a circular shape, second openings are formed in the other ends, communicating with each other, of the two limiting channels, and the second openings and the positions, communicating with each other, of the two limiting channels all directly face the first opening. A communicating gap between the two limiting channels is far smaller than the maximum inner diameter of the limiting channels, the rubber sleeve is arranged on the surface of the guide arm in a sleeving mode, and a limiting structure is arranged on the outer surface of the rubber sleeve. The integrated fixing structure for the two wire harnesses can effectively fix the two wire harnesses, and is low in cost and good in fixing effect.

The utility model discloses a reaction kettle for coating production, which comprises a reaction kettle body, a motor is mounted on the top surface of the reaction kettle body, a rotating rod is fixedly mounted at the output end of the motor, the rotating rod penetrates through the top of the reaction kettle body and is rotatably mounted at the bottom of an inner cavity of the reaction kettle body, and two limiting rods are mounted on the outer side of the rotating rod. A lifting sleeve is slidably mounted on the outer sides of the rotating rod and the limiting rod, an annular limiting groove is formed in the middle of the outer side of the lifting sleeve, a lifting scraping plate is slidably mounted in the reaction kettle, a movable assembly penetrating through the annular limiting groove is arranged on the inner side of the lifting scraping plate, and a stirring piece is arranged on the outer side of the lifting sleeve. An electric push rod is mounted on the top surface of the reaction kettle. The lifting scraping plate moving up and down can scrape off paint on the inner wall of the reaction kettle, and the lifting scraping plate drives the lifting sleeve to move up and down to change the position of the stirring piece, so that more efficient and uniform stirring is realized.

The present invention relates to the field of disposable sanitary products, and provides a core production process with skin care particles, as well as diapers and pull-up pants, including polymer surface layer conveying, first feeding bin unloading, second feeding bin unloading, third feeding bin unloading, and core body molding. The core body has a complex structure and is manufactured by only one core molding device, which shortens the length of the equipment, saves energy, and improves production efficiency. The first skin care particles can provide continuous skin care for the human body, and the second skin care particles can provide skin care for the human body when urine enters. The antibacterial and deodorizing particles have antibacterial and deodorizing functions, which improve the skin care effect of the entire core body and solve the technical problems of poor skin care effect of the core and easy occurrence of diaper rash after long-term wearing.

The invention discloses iridium-cobalt oxide nanoparticles as well as a preparation method and application thereof. The iridium-cobalt oxide nanoparticles comprise a cobaltosic oxide carrier and supported iridium oxide. The preparation method comprises the following steps: 1) preparing an iridium salt-cobalt salt aqueous solution; 2) preparing a reaction solution of a complex containing iridium ammonium salt and cobalt; (3) preparing an iridium hydroxide-cobalt complex compound; and 4) grinding the iridium hydroxide-cobalt complex compound, placing the ground complex compound in an oxygen-containing atmosphere for heat treatment, and then carrying out water washing and drying. The iridium-cobalt oxide nano-particles are low in iridium content, small and uniform in particle size and simple in preparation method, have the advantages of being high in electrochemical activity, good in electrochemical stability and the like when being used as an OER reaction catalyst, and are suitable for large-scale industrial application in the field of hydrogen production through water electrolysis.

The invention discloses a planet carrier shell core preparation mold and a preparation process thereof, and belongs to the technical field of casting. The preparation mold comprises a core box, the core box is composed of two split molds, a sand pouring opening is formed in the position, located in the middle of a connecting line of the two split molds, of the upper end face of the core box, and a sand shooting opening is formed in each of the two sides of the sand pouring opening; a cavity for forming a planet carrier shell core is formed in the inner side surface of the split mold and is communicated with the sand shooting opening through a sand shooting channel formed in the inner side surface of the split mold. The shell core for planet carrier casting can be prepared, and compared with a traditional solid sand core, the production cost is obviously increased, and the production efficiency is obviously improved.

The invention discloses a soil conditioner and a preparation method thereof, relates to a conditioner and a preparation method thereof, and solves the problems of soil pollution and soil acidification. The soil conditioner is composed of dolomite and urea. The preparation method comprises the following steps: (1) weighing dolomite and urea; (2) respectively grinding dolomite and urea, and uniformly mixing; and (3) roasting in a muffle furnace, grinding, and passing through a hole sieve. The low-cost raw materials dolomite and urea are combined according to a specific proportion, the preparation method is simple, the acidification condition of soil can be improved, the pH value of the soil can be increased, the permeability of the soil can be increased, the physicochemical properties of the soil can be improved, and wide application prospects are achieved.

The invention relates to a preparation method of a calcium-based absorbent, the calcium-based absorbent and application of the calcium-based absorbent. The preparation method of the calcium-based absorbent comprises the following steps: 1) calcining a calcium-based raw material to obtain a raw material containing calcium oxide; 2) mixing the raw material containing calcium oxide with glycerol to obtain a mixture; 3) performing solvothermal modification on the mixture to obtain slurry; and 4) calcining the slurry to obtain the calcium-based absorbent. The calcium-based absorbent with the loose structure is prepared, the preparation process is simple, raw materials are cheap, and the calcium-based absorbent can be applied to large-scale production. The calcium-based absorbent disclosed by the invention has the advantages of high cycle conversion rate, stable pore structure, difficulty in sintering and inactivation, high efficiency, excellent performance, good pollutant treatment effect and the like, and can still keep good gas absorption capacity even if carbon dioxide and sulfur dioxide are circularly absorbed for multiple times.

The invention relates to an organic pollutant wastewater treatment technology, in particular to a preparation method and application of a high-entropy ferrite Fenton-like catalyst. The nano high-entropy ferrite is prepared through one-step growth by adopting a low-temperature solvothermal method in a strong alkaline environment, the chemical composition of the nano high-entropy ferrite is (MxCoxNi0. 2Cu0. 2Zn0. 2) Fe2O4, M is Mg and / or Mn, 0 lt, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, and x is less than or equal to 0.2. According to the invention, the catalytic activity and selectivity design of the Fenton-like catalyst is realized by regulating and controlling the chemical composition of the high-entropy ferrite, and the prepared flaky or regular octahedral high-entropy ferrite has higher catalytic activity than a single phase. The synthesis method of the high-entropy ferrite catalyst provided by the invention has the advantages of low preparation temperature, high universality, simplicity and feasibility, simple equipment and the like, and provides a new way and a new idea for application of the high-entropy ferrite material in the fields of catalysis, energy conversion and the like.

The invention provides a synthesis method of polyether modified amino silicone oil. The method comprises the following steps: adding amino silicon oil and a proper amount of a catalyst into a high-pressure reaction kettle under negative pressure, introducing nitrogen to replace air in the reaction kettle, then heating to 160-180 DEG C, introducing ethylene oxide, reacting under the reaction pressure of 0.3-0.5 MPa, and after the reaction pressure is constant and the reaction is complete, cooling to room temperature to obtain the amino silicon oil. And when the temperature in the reaction kettle is reduced to 60-80 DEG C, introducing nitrogen to blow out the polyether modified amino silicon oil. The preparation method provided by the invention is simple, the technological process is environment-friendly and safe, the product purity is relatively high, and the method is suitable for large-scale production.

The utility model relates to the technical field of crucibles, in particular to a positionable crucible suitable for an internal serial graphitization furnace. Any two adjacent crucibles in the plurality of crucibles are connected end to end, each crucible comprises a crucible body and a crucible cover, the crucible body is a cylinder with an opening in the top, the crucible cover is arranged at the opening of the crucible body, a boss is arranged at the bottom of the crucible body, and the boss is matched with the opening in the top of the crucible body. The crucibles are tightly connected in pairs, and the crucible group is in straight linear arrangement, so that the positioning is convenient. The electric conductivity is high, and subsequent operation is easy to carry out. The crucible positioning device is mainly applied to the aspect of positionable crucibles of the internal serial graphitization furnace.

The invention provides in-situ conductive biogel and a preparation method thereof. The in-situ conductive biogel is prepared from the following raw materials: gelatin, a conductive polymer, a deep eutectic solvent and deionized water, the mass ratio of the gelatin to the conductive polymer to the deep eutectic solvent to the deionized water is (1-100): 1: (0.5-100): (1-300). The in-situ conductive biogel provided by the invention has the advantages of high mechanical property, strong adhesive force, high conductivity and low signal-to-noise ratio. The in-situ conductive biogel provided by the invention is simple in preparation method, low in raw material cost, pollution-free in preparation process and beneficial to large-scale production, and has huge industrial application potential.