41results about How to "Controllable nature" patented technology

The invention relates to medical polymers field, especially a temperature sensitive and biodegradable triblock copolymer with gel-sol transformation characteristics and preparation method thereof and usage. The triblock copolymer is PEG-PCL-PEG copolymer, the aqueous solution thereof performs Gel-Sol phase transformation along with the temperature rise and the phase transformation temperature is 40-55 degree. The PEG-PCL-PEG copolymer has a variety of excellent features to provide a new choice in field which is in need of temperature sensitive material.

The invention discloses a stone coal vanadium ore oxidizing, crystal breaking, roasting and vanadium extracting comprehensive utilization system. A crusher, a high-pressure roller mill, a first feeding belt, a feeding bin, a second feeding belt and a spiral feeder are sequentially matched with one another, and the discharging end of the spiral feeder is matched with a feeding port of a suspensiondecarburization roasting furnace; the suspension decarburization roasting furnace, a first cyclone separator, a suspension crystal breaking roasting furnace, a second cyclone separator and a cooler are sequentially communicated in series; a combustor and an air inlet are respectively arranged at the bottoms of the suspension decarburization roasting furnace and the suspension crystal breaking roasting furnace; an air inlet of the cooler is communicated with an air compressor; and a discharging hole in the bottom of the cooler is matched with a feeding hole of an acid mixing curing furnace; andthe acid mixing curing furnace, a first leaching tank, a first filtering device, a second leaching tank, a second filtering device, a pH value adjusting tank and a third filtering device are sequentially connected in series and matched with one another. The system provided by the invention is stable in operation, large in treatment capacity, low in energy consumption and cost of unit treatment capacity, and capable of easily controlling product properties and easily achieving large-scale equipment.

The method belongs to the technical field of polymeric material and specifically relates to a preparation method of a multi-arm star polyamide polymer. The method of the invention comprises the following steps: placing monomer, initiator 0.2-20% of a mole of the monomer and water 10-50 wt% of the monomer into a high pressure reaction kettle; sealing; filling the reaction kettle with nitrogen through a displacement method; heating to a temperature 20-50 DEG C higher than a melting point of an obtained polymer; adjusting a pressure to be at 1.8-2.5 MPa constantly; keeping the constant temperature for 20-120 min and operating a stirring device; reacting for 4-24 h, releasing pressure, vacuumizing and keeping at 10-4 MPa for 20-50 min; finally filling nitrogen to guarantee a pressure in the reaction kettle to reach 1.5-2.5 MPa, extruding the material, cooling and drying to obtain the multi-arm star polyamide polymer. Compared with a prior art, the invention has advantage of simpleness and easiness for enforcement; and the obtained multi-arm star polyamide polymer has controllable nucleus structure and property and controllable arm number, arm length and arm property, flexible and adjustable structure and can be modified conveniently for application in many fields.

The invention provides a preparation method and application of a transparent conductive oxide film. According to the preparation method and application of the transparent conductive oxide film, magnetron sputtering technology is adopted; through process regulation and control, the high-efficiency deposition of a high-quality thin film can be realized; the preparation of a transparent conductive oxide film with carrier mobility higher than 60cm<2>V<-1 >s<-1> can be realized under a low-temperature condition; the electrical property of the oxide film is equivalent to that of ITO; and the opticalabsorptivity of the oxide film in a UV-Vis-IR full-wave band range is obviously reduced compared with that of the ITO. The fluorine-doped indium oxide transparent conductive oxide film prepared by the invention has good thermal stability; heat treatment at 250 DEG C or below basically does not cause the deterioration of material properties; the performance of the fluorine-doped indium oxide filmsubjected to proper post-treatment can be further improved; in addition, transition metal elements are not used, and therefore, the performance of the oxide film is stable, and meanwhile, the opticalproperties of the oxide film can be effectively regulated and controlled; and since the transition metal elements are not used, preparation cost is low.

The invention discloses a hydrogel microcarrier and a preparation method and application thereof.The hydrogel microcarrier takes an oil phase solution as a carrier, an aqueous phase solution containing an initiator and two or more gelatinizing materials is dispersed in the oil phase solution, and the density-coded hydrogel microcarrier is formed by changing the concentration ratio of different gelatinizing materials. The preparation method comprises the following steps: mixing two or more gelatinizing materials with different concentration ratios with an initiator to obtain a water-phase solution; dissolving a surfactant and TEMED in an oil medium to obtain an oil phase solution, wrapping a water phase solution in the oil phase solution to form hydrogel liquid beads, and curing the hydrogel liquid beads to form the density-coded hydrogel microcarrier. The hydrogel microcarrier can realize multiple detection of disease-related proteins and visual detection of tumor-derived exosomes, andhas the advantages of simple decoding, low detection cost and the like.

The invention discloses a colloid ozone bubble as well as a preparation method and application thereof. The preparation method of the colloid ozone bubble comprises the following steps: presetting a surfactant solution in a bubble generating tank in a mode of continuously producing bubbles, wherein the reserved amount of the surfactant solution accounts for 30-40% of the volume of the bubble generating tank; introducing the surfactant solution in a bubble generating fluid storage tank into the bubble generating tank via a liquid inlet pump at a flow velocity of 50-80mL/min, and introducing air into an air source ozone generator; supplying 3000V high voltage power to the ozone generator so as to rapidly convert oxygen into ozone, introducing the obtained high-concentration ozone-electric ion mixed air into the bubble generating tank from the air inlet at the bottom of the bubble generating tank at a flow velocity of 16.7-66.7mL/min, stirring the gas-liquid mixture by a high-speed stirrer for 40-80 seconds at 4000-6000 revolutions per minute, and producing bubble suspension, namely the colloid ozone bubble. The colloid ozone bubble disclosed by the invention is applied to treating polycyclic aromatic hydrocarbons (PAHs) contaminants in water body sediments.

The invention provides an electrochemical polymerization process for forming a solid electrolyte layer on a solid electrolytic capacitor, which comprises the following step of: carrying out constant current polymerization in an electrochemical polymerization solution to prepare a second solid electrolyte layer by connecting the surface of an anode body on which a solid electrolyte layer is formed by a chemical polymerization process with an external electrode as an anode and using a conductive electrode as a cathode, wherein the pH value of the electrochemical polymerization solution is controlled to range from 3.0-6.0. The electrochemical polymerization process for forming a solid electrolyte layer on a solid electrolytic capacitor enables the properties of the solid electrolytic capacitor produced by the electrochemical polymerization process to be more controllable, the electrolytic capacitor prepared in the range of the pH value is better in properties such as capacitance, loss, ESR and the like, and the polymerization process simplifies the process flow and improves the process efficiency.

The invention discloses chloroacetamide herbicide capsule suspension and a production method thereof. The produced hloroacetamide herbicide capsule suspension is stable in quality and controllable inrelease rate, and has quick release efficacy and slow release efficacy at the same time; and the production method is simple to operate, easy to control, high in production efficiency and short in production time.

The invention discloses a kesterite structure Cu for solar photovoltaic cells ₂ FeSnSe ₄ A powder material and a liquid phase preparation method thereof, comprising the steps of: making the raw material CuCl ₂ 2H ₂ O, FeCl ₃ ·6H ₂ O, SnCl ₄ ·5H ₂ O. The selenium powder is weighed by molar ratio and put into a three-necked round-bottomed flask for mixing, and then an organic solvent triethylenetetramine solution is added to obtain a uniform light blue solution; nitrogen is used as a protective gas and placed in a constant temperature oil bath Heated to 200-230°C in medium temperature and kept for 0.5-12 hours, then cooled to room temperature naturally; washed with absolute ethanol and distilled water in sequence, then filtered and dried to obtain a black powder. The kesterite structure Cu ₂ FeSnSe ₄ The liquid-phase preparation method of powder materials is green and pollution-free, the reaction time is short, the required temperature is low, the operation is simple, the cost is low, and it is suitable for Cu ₂ FeSnSe ₄ Powder materials are used in the industrialization of photovoltaic cell absorber layers.

The invention discloses a suspension roasting system for heating, cracking and strengthening reduction of the iron-containing material. A storage tank of a high-pressure roller mill is opposite to a feeding bin, and the feeding bin is matched with a first cyclone separator; the first cyclone separator and a first flow sealing valve communicate with a feeding hole of a pre-oxidation suspension roasting furnace in series; a discharge hole of the pre-oxidation suspension roasting furnace, a second cyclone separator and a heat storage reduction roasting furnace are communicated in series; a discharge hole of the heat storage reduction roasting furnace, a nitrogen cooling cyclone separator, a second flow sealing valve and an air cooling cyclone separator are communicated in series; and the aircooling cyclone separator, a ball mill and a magnetic separator are matched in sequence. The device and the system are stable in operation, large in treatment capacity, low in energy consumption and cost of unit treatment capacity, easy to control product properties and easy to realize large-scale equipment.

The invention discloses an ore high-voltage pulse discharge pretreatment system and a using method thereof. The ore high-voltage pulse discharge pretreatment system comprises a feeding bin, a spiral feeder, a high-voltage electric pulse crushing cavity, a pulse high-voltage electric generator, an output power supply, an insulating liquid storage pool and an oscilloscope. The using method comprisesthe steps that (1) ore is conveyed to the high-voltage electric pulse crushing cavity through the feeding bin and the spiral feeder, and insulating liquid is introduced into the high-voltage electricpulse crushing cavity; (2) the voltage of the output power supply is controlled, the ore is in contact with a positive electrode and a negative electrode, electric current is conveyed to the pulse high-voltage generator, converting into an ultrahigh-voltage direct electric current is carried out, high-voltage electric pulse pretreatment is performed on the ore, and real-time monitoring is performed through the oscilloscope; and (3) the ore is subjected to high-voltage electric pulse pretreatment and then is continuously discharged along with the insulating liquid. The using method is simple in process, stable in system operation and easy in product property control; and the high-voltage electric pulse pretreatment enables internal cracks and gaps of the ore to be sharply increased, the mechanical property of the ore is weakened, and the ore grinding efficiency is remarkably improved.

The invention discloses a high-voltage electric pulse pretreatment-magnetizing roasting system and method for refractory iron ore. The system is composed of a high-voltage electric pulse pretreatmentpart and a magnetizing roasting part. The high-voltage electric pulse pretreatment part comprises a feeding bin, a spiral feeder, a high-voltage electric pulse crushing chamber, a pulse high-voltage electric generator, an output power supply, an insulating liquid storage pool and an oscilloscope. The magnetizing roasting part comprises a middle feeding bin, a middle spiral feeder, a suspension reduction roasting furnace, a cooler, a ball mill and a magnetic separator. The method comprises the steps of (1) conveying the ore to the high-voltage electric pulse crushing chamber through the feedingbin and the spiral feeder, and introducing insulating liquid into the high-voltage electric pulse crushing chamber; (2) carrying out high-voltage electric pulse pretreatment on the ore; (3) filteringand drying the pretreated ore; (4) conveying the ore to the suspension reduction roasting furnace for carrying out reduction reaction; (5) putting the ore into the ball mill after heat exchange; and(6) performing low-intensity magnetic separation after ore grinding. According to the high-voltage electric pulse pretreatment-magnetizing roasting system and method for the refractory iron ore provided by the invention, the method is simple in technological process, the system is stable in operation, and the product properties are easy to control.