37results about How to "Moderate conductivity" patented technology

The invention discloses a high-effective low-toxic flameproof lithium battery electrolyte and lithium battery, which is characterized by the following: adopting one ore more phosphate (methyl phosphodimethylester, ethyl phosphodiethylester, ethyl phosphodimethylester) as pure solvent or solvent component; displaying incombustibility based on the electrolyte of phosphate; saving the cost; improving the conductivity and lithium salt solubility and safety with stable electrochemical property.

The invention discloses a flame-proof electrolyte and its lithium battery for secondary lithium battery, which is characterized by the following: adopting one or more phosphosubester (such as methyl acid phosphate dimethyl ester, ethyl phosphate diethyl ester and its derivant) as pure solvent or solvent component; reducing the price of electrolyte with incombustibility, low toxicity and high conductivity; improving the combusting safety effectively.

The invention discloses a process for preparing graphite according to an electrochemical method. The process comprises the following steps: firstly, mixing lewis acid with protonic acid to obtain electrolyte; secondly, taking graphite paper as an anode, and completely immersing the graphite paper into the electrolyte for intercalating to obtain intercalated graphite paper with expanded volume; thirdly, using the intercalated graphite paper as an anode, immersing the intercalated graphite paper into a solution containing sulfate ions or phosphate anions, and applying voltage to enable the intercalated graphite paper to continuously expand, wherein the intercalated graphite paper gradually falls off to form expanded graphite paste; fourthly, repeatedly washing the graphite paste by using pure water, filtering, then uniformly mixing the graphite paste with the pure water to obtain dilute paste, and sequentially carrying out ultrasonic exfoliation, filtering and drying on the dilute paste to obtain graphene powder. According to the process disclosed by the invention, the problem that a strong acid, a strong oxidant or an expensive poisonous organic solvent is adopted for preparing graphene according to an existing electrochemical method is solved, a preparation process of the graphene is also simplified, and the preparation cost is reduced.

The invention provides a plating solution for the non-cyanide imitation gold plating of a Cu-Zn binary alloy on low carbon steel, and its use method in order to improve the problems of severe toxicity, bad anode dissolvability and high treatment cost of three wastes of cyanide-containing plating solutions and the problems of complex composition, narrow range of technological parameters and unrealistic imitation gold color of non-cyanide plating solutions in present imitation gold plating technologies. The method is characterized in that the method comprises the following steps: an activated matrix can be directly plated without cleaning, so the operation is simple; the imitation gold plating solution is composed of potassium pyrophosphate, copper sulfate, zinc sulfate and glycerin, so the imitation gold plating solution has the advantages of green property, environmental protection, good dispersity, strong homogeneous plating ability, simple composition and easy maintenance; and the prepared gold imitation plating solution can meet the requirements of the cross cut test requirements of national standard GB9286-1998 paint and varnish film; and the obtained coating is passivated and seal-protected, and the protected coating meets the 5% brine neutral salt spray test indexes of the national standard GB5938-86 Corrosion Resistance Test Method of Metal Coating and Chemical Treatment Layer of Light Industrial Product, and can be used as a decorative coating.

The invention discloses resilient magnetic carbon foam and a preparation method thereof. The magnetic carbon foam material is prepared from melamine foam through ultrasonic cleaning, magnetic metal ion solution soaking and carbonization pyrolysis in an argon atmosphere. The resilient magnetic carbon foam is composed of a melamine foam carbonized porous framework, magnetic metal nanoparticles and carbon nanotubes formed by catalyzing the magnetic metal nanoparticles, and the magnetic metal nanoparticles are coated with the generated carbon nanotubes and evenly distributed on the surface of themelamine foam framework. The magnetic carbon foam has the advantages of magnetism, electrical conductivity, low density, high specific surface area, high resilience and the like; the resilient magnetic carbon foam has good application prospects in the fields of electromagnetic shielding and wave absorption, magnetic sensors, oil absorption, electrochemical catalysis, battery electrodes, supercapacitors and the like, and especially in the aspect of electromagnetic wave absorption, broadband strong absorption of electromagnetic waves can be achieved under the condition of a low addition amount.

The invention belongs to the battery material field, in particular to a nanometer Zn @ C negative electrode material for a secondary zinc-based battery and a preparation method thereof. C in the negative electrode material is a nano carbon material, the thickness of the negative electrode material is 50-100 [mu]m and a Zn grain size is 20-80 nm; the preparation method comprises the following steps: adding nano-carbon material into nano-zinc plating solution for electroplating, then washing with water and drying to obtain the nano-Zn @ C negative electrode material; DC, high frequency forward pulse current or high frequency bi-directional pulse current can be used for electroplating; The nanometer zinc plating solution comprises zinc sulfate, boric acid and grain refiner, the pH value is 1to 3, and the solvent is water. The negative electrode material prepared by the invention has good adhesion, no zinc shedding after 20 times of 90 DEG bending tests, strong dendritic growth inhibitionability, excellent specific capacity, cycle life, coulomb efficiency and magnification performance, and is proved to be good in effect by magnification test and suitable for large-scale industrial production.

The invention discloses a rare earth doped SnTe-based thermoelectric material. The SnTe-based thermoelectric material is doped with rare earth elements which have an atomic percentage of 0.1 to 2%. Compared with the existing SnTe-based thermoelectric material, the rare earth doped SnTe-based thermoelectric material in the technical scheme of the invention has better thermoelectric properties, with appropriate conductivity and high thermoelectric properties; and when added, the rare earth elements easily replace the Sn position as a donor to reduce the intrinsic Sn hole concentration, the carrier concentration is optimized, and the thermoelectric properties of the material are thus improved.

The invention discloses a production method of a chemosynthetic water-soluble fertilizer, the chemosynthetic water-soluble fertilizer prepared through the production method of the chemosynthetic water-soluble fertilizer and application of the chemosynthetic water-soluble fertilizer. According to the method, production is performed by taking industrial diammonium hydrogen phosphate and / or monopotassium phosphate, nitrogenous fertilizer and potash fertilizer as main raw materials through hydrogen bonding, acid regulating by adding alkaline and the like. The production method is little in investment, few in production procedures, short in production cycle and low in production cost. The chemosynthetic water-soluble fertilizer is appropriate in acidity, capable of achieving the good crystalline state, stable and uniform in composition, not prone to be hardened and damped, capable of being fully dissolved in water, easy to absorb and convert, high in fertilizer utilization rate, significant in synergistic effect and suitable for being applied to acidic or meta-acidic soil and facility greenhouses.

The invention relates to the field of preparation of a phase-change material, and particularly discloses a preparation method of a phase-change material emulsion. The preparation method of the phase-change material emulsion comprises the following steps: preparing an amphiphilic polymer and then preparing the phase-change material emulsion by taking the amphiphilic polymer as a surfactant. The preparation method of the phase-change material emulsion is energy-saving and efficient, industrialized implementation is facilitated, and the prepared phase-change material emulsion has stable performance, uniform grain size, high phase-change enthalpy and small supercooling degree and can be widely applied to the fields of heat mediums of functional thermal fluid and refrigeration systems.

The present invention relates to water purifying scale remover, and is especially artificially water purifying scale remover with tourmaline as main material. The water purifying scale remover is prepared with tourmaline 60-75 wt% and Yiwangshi stone 25-40 wt%, and through crushing into nano level fineness, mixing and packing. It is added into water in the amount of 1-5 % to eliminate scale. The said minerals are sintered into pellet and set inside container for filtering water. The prepared water purifying scale remover may be used widely in industrial and civil water treatment, especially in boiler descaling.

The invention discloses an embedded fine circuit flexible packaging substrate and a manufacturing method thereof. The manufacturing method of the embedded fine circuit flexible packaging substrate includes the following steps: S1, ablating a preset circuit groove in a flexible substrate which is made on a PI film or a PEN film by using a KrF gas excited molecular laser beam having preset technological parameters which include: energy is 10mJ / pulse, and frequency is 300Hz, and minification is 10 times and the atmosphere is helium; and under setting of the preset technological parameters, acquiring the etching rate of 0.5 mu m per pulse; S2, using a scraper blade to extrude conductive paste into the circuit groove to form a conductive circuit; and S3, drying, solidifying and cleaning the conductive circuit. The embedded fine circuit flexible packaging substrate and the manufacturing method thereof can solve the problems that the current manufacturing method flexible printed circuit boards is high in cost and is lower in the circuit resolution.

The invention provides a novel wire cut electrical discharge machining work fluid and a preparation method thereof. The wire cut work fluid is prepared from the following raw materials in percentage by weight: 48-58% of 20# engine oil, 16-18% of a compound emulsifier, 8-10% of a multifunctional additive, 6-8% of oleic acid, 1.5-2.5% of triethanolamine, 0.5-1.5% of sodium hydroxide and 10-12% of water. The preparation method comprises the following steps: a) preparing the multifunction additive; and b) heating, stirring and mixing the raw materials to prepare the work fluid. The invention discloses the novel wire cut electrical discharge machining work fluid and the preparation method thereof. The wire cut work fluid prepared by adopting a one-step method is simple and feasible and low in cost. The prepared work fluid has good anti-rust property, deforming property, cleaning property and lubricity, is moderate in electric conductivity and free of toxicity and odors and has relatively high application value.

The invention relates to a preparation method of an ibuprofen transdermal sustained-release preparation. According to the method, a biodegradable high-molecular material of polylactic acid is used asa shell layer material, a high-molecular material of polyvinylpyrrolidone is used as a core layer material, ibuprofen which is a medicament with strong crystallinity is loaded on the core layer of fiber by using a coaxial electrostatic spinning means, and the prepared ibuprofen transdermal sustained-release preparation has a core-shell structure. The invention utilizes the double-layer shielding function established by the special core-shell structure of the coaxial electrostatic spinning fiber to realize the inhibition of ibuprofen crystallization, and the coaxial electrostatic spinning fiberhas larger specific surface area, thereby improving the transdermal penetration effect and the drug treatment effect of the ibuprofen. The ibuprofen transdermal sustained-release preparation preparedby the method can flexibly adjust and control the drug loading ratio by adjusting the quality of the added drug, does not contain a penetration enhancer, can be directly applied to skin, has good usecomfort and drug sustained-release performance, and is beneficial to drug transdermal penetration and treatment.

The invention discloses a color ink-jet printing ink and a preparation method thereof. The color ink-jet printing ink comprises the following components in parts by weight: 60-80 parts of deionized water, 8-12 parts of triethanolamine, 5-10 parts of a water-soluble organic wetting agent, 6-8 parts of a wetting binder, 6-8 parts of a cellosolve, 5-7 parts of acrylic resin, 4-6 parts of a colorant, 0.2-0.4 part of a surfactant, 0.1-0.2 part of a preservative and 0.01-0.02 part of a drying agent, wherein the colorant is metal complex dye; the drying agent is selected from ethanol, isopropyl alcohol or 1-cyclohexyl-2-pyrrolidone; the water-soluble organic wetting agent is 1,2-propanediol, glycerine, ethylene glycol, diglycol, triethylene glycol or sorbitol; the wetting binding agent is 2-pyrrolidone, sodium sorbate, polyvinyl pyrrolidone or potassium sorbate. The color ink-jet printing ink is safe, environment-friendly, excellent in definition of a printed image, moderate in surface tension, viscosity and electrical conductivity, capable of clearly imaging on a printing stock medium without a coating, excellent in ink smoothness, unlikely to block an ink-jet printer ink gun, good in water resistance and photostability, and free of corrosion of a printer.

The invention discloses a high-effective low-toxic flameproof lithium battery electrolyte and lithium battery, which is characterized by the following: adopting one ore more phosphate (methyl phosphodimethylester, ethyl phosphodiethylester, ethyl phosphodimethylester) as pure solvent or solvent component; displaying incombustibility based on the electrolyte of phosphate; saving the cost; improvingthe conductivity and lithium salt solubility and safety with stable electrochemical property.

The invention relates to a deicing pure copper coating and belongs to the technical field of surface engineering. The pure copper coating is prepared and obtained by the adoption of the electric arc wire rod spraying method, the porosity is low, the strength of combination with a substrate is high, the conductivity is moderate, and ice accumulated on the surface of the substrate can be removed byelectrifying and heating the pure copper coating through an external power source. The pure copper coating serves as the deicing coating to be used, the deicing pure copper coating has the beneficialeffects of being high in heating efficiency, uniform in heating and simple in structure, and the deicing pure copper coating is suitable for removing accumulated ice on a body of an airplane, and particularly has a good deicing effect on parts made of a glass fiber reinforcement resin material. In addition, the preparation method of the pure copper coating is easy to operate, stability and controllability are high, and the method is suitable for spraying large members.

The present invention relates to ink producing technology, and is especially one kind of ink for jet printing and its preparation process. The ink for jet printing is prepared with colorant 9-22 wt%, diglycol 8-10 wt%, triethanolamine 0.035 -0.04 wt%, diethylene glycol butyl ether 6-8 wt%, polyvinylpyrrolidone 1.5-3 wt% and water for the rest. Its preparation process includes the steps of: mixing the components to form material liquid and sealing, filtering with a Buchner funnel, and sealing the filtrate as the product in plastic barrel.

The invention relates to a synthesis method of a novel ion battery positive pole material iron phosphate, belonging to the field of chemical synthesis. The synthesis method comprises the following experimental steps: sequentially adding (NH4)2HPO4, H3BO3, C2H4O4.2H2O, FeSO4.7H2O and NH3.H2O into secondary deionized water at room temperature, and mixing; after the mixed solution is uniformly mixed, putting the mixed solution into a reaction kettle, heating to react at 150-210 DEG C, and naturally cooling to room temperature; and washing with deionized water to obtain a massive green crystal, and naturally airing at room temperature, wherein the yield is about 50%. The method performs reaction under hydrothermal conditions, thereby lowering the cost and implementing green production. The raw material charging sequence and stoichiometric proportion, reaction temperature, reaction time and cooling time are regulated and controlled to greatly enhance the yield.

The invention relates to a device and method for preparing synthesis gas through electro-catalysis of methane-carbon dioxide. The device comprises a reaction device and a gas supply device; a catalyst filling area is arranged in the reaction device, electrode plates are arranged on the two sides of the catalyst filling area respectively, and the electrode plates on the two sides are connected with a positive electrode and a negative electrode respectively; the gas supply device is connected with a gas supply port of the reaction device, and a gas inlet of the reaction device is located on the outer side of the space formed by the electrode plates. The synthesis gas is prepared by utilizing electro-catalysis. A catalyst is placed in the filling area, the electrode plates are arranged on the two sides of the catalyst respectively, an electric field is formed between the two electrode plates, methane and carbon dioxide gas are subjected to catalytic reaction under the action of the electric field, and the device has the advantages of being low in reaction temperature and high in conversion rate.

The invention relates to an SPEEK (sulfonated poly (ether ether ketone)) proton exchange membrane material with an epoxy resin interpenetrating polymer network and a preparation method of the SPEEK proton exchange membrane material. The proton exchange membrane material is structurally characterized in that the epoxy resin forms a cross-linked network structure, and SPEEK is taken as a long chain penetrating through the network. According to the SPEEK proton exchange membrane material, SPEEK with higher degree of sulfonation is adopted as a base material, under the assistance of the cross-linking reaction of the epoxy resin, the defects of overhigh water absorption rate and poorer composite membrane stability of SPEEK with overhigh degree of sulfonation are overcome, certain mechanical strength and good methanol resistance of a composite membrane are guaranteed, and the dimensional stability and the water swelling resistance of the proton exchange membrane are improved.

The invention provides a three-dimensional amorphous carbon frame porous charcoal and a preparation method and application thereof. The preparation method includes the following steps: pretreatment: making dry wood into wood blocks, and dissolving some components in the wood blocks through a solvent , enrich the micro-nano pore structure of the wood block to form a porous wood block; stabilize the pore structure: wash the porous wood block with deionized water several times, and then freeze-dry it; form amorphous carbon: pass the freeze-dried porous wood block through Double temperature gradient pyrolysis to obtain three-dimensional amorphous carbon framework-containing porous charcoal with nanoparticle decoration. The preparation method has simple preparation conditions; the prepared three-dimensional amorphous carbon frame porous charcoal has excellent comprehensive wave absorbing effect and can be used as a wave absorbing material, and the invention provides a new way for the value-added and efficient utilization of forest biomass.

The invention discloses a production method of a chemosynthetic water-soluble fertilizer, the chemosynthetic water-soluble fertilizer prepared through the production method of the chemosynthetic water-soluble fertilizer and application of the chemosynthetic water-soluble fertilizer. According to the method, production is performed by taking industrial diammonium hydrogen phosphate and / or monopotassium phosphate, nitrogenous fertilizer and potash fertilizer as main raw materials through hydrogen bonding, acid regulating by adding alkaline and the like. The production method is little in investment, few in production procedures, short in production cycle and low in production cost. The chemosynthetic water-soluble fertilizer is appropriate in acidity, capable of achieving the good crystalline state, stable and uniform in composition, not prone to be hardened and damped, capable of being fully dissolved in water, easy to absorb and convert, high in fertilizer utilization rate, significant in synergistic effect and suitable for being applied to acidic or meta-acidic soil and facility greenhouses.

The invention discloses a ternary perfluor organic molten salt electrolyte, preparation method and application thereof. The perfluor organic molten salt electrolyte is prepared from one perfluor organic lithium salt and two non-lithium alkali metal perfluor organic salts, or from two perfluor organic lithium salts and one non-lithium alkali metal perfluor organic salt, wherein the total mole fraction of the perfluor organic lithium salt is 10 to 70%. The preparation method is as follows: respectively weighing the required raw material components based on proportion; fully and evenly mixing theselected raw material components; then heating and fusing the mixture; then evenly milling the mixture after re-cooled so as to obtain the perfluor organic molten salt electrolyte. The molten salt electrolyte of the invention is advantageous in low melting point, high electrical conductivity, wide electrochemical window, excellent thermal stability and electrochemical performance. The invention can be applied to the fields, for example, lithium thermal battery.

The invention discloses resilient magnetic carbon foam and a preparation method thereof. The magnetic carbon foam material is prepared from melamine foam through ultrasonic cleaning, magnetic metal ion solution soaking and carbonization pyrolysis in an argon atmosphere. The resilient magnetic carbon foam is composed of a melamine foam carbonized porous framework, magnetic metal nanoparticles and carbon nanotubes formed by catalyzing the magnetic metal nanoparticles, and the magnetic metal nanoparticles are coated with the generated carbon nanotubes and evenly distributed on the surface of themelamine foam framework. The magnetic carbon foam has the advantages of magnetism, electrical conductivity, low density, high specific surface area, high resilience and the like; the resilient magnetic carbon foam has good application prospects in the fields of electromagnetic shielding and wave absorption, magnetic sensors, oil absorption, electrochemical catalysis, battery electrodes, supercapacitors and the like, and especially in the aspect of electromagnetic wave absorption, broadband strong absorption of electromagnetic waves can be achieved under the condition of a low addition amount.

The invention provides a bismuth oxide-assisted zirconia-based electrolyte and a preparation method thereof. By adopting the bismuth oxide composite scandium oxide stabilized zirconia electrolyte, the densification sintering temperature can be effectively reduced, and meanwhile, relatively high conductivity can be ensured.

The invention discloses a magnetic conductive nano-metal / carbon airgel absorbing material and the preparation method thereof. The material is formed and prepared from carbon airgel which undergoes sensitization, electroless plating, freeze drying or supercritical drying. The carbon airgel is composed of magnetic metal nano particles and a porous carbon skeleton. The magnetic metal nano particles are distributed evenly on the surface of the carbon airgel and have magnetic force, electrical conductivity, low density, a high specific surface area and a nano-porous structure. Due to the above characteristics, the carbon airgel absorbing material has a good prospect in the field of electromagnetic wave absorption, and it can absorb the wide bands of an electromagnetic wave effectively even with low use amount.

The invention relates to the field of preparation of a phase-change material, and particularly discloses a preparation method of a phase-change material emulsion. The preparation method of the phase-change material emulsion comprises the following steps: preparing an amphiphilic polymer and then preparing the phase-change material emulsion by taking the amphiphilic polymer as a surfactant. The preparation method of the phase-change material emulsion is energy-saving and efficient, industrialized implementation is facilitated, and the prepared phase-change material emulsion has stable performance, uniform grain size, high phase-change enthalpy and small supercooling degree and can be widely applied to the fields of heat mediums of functional thermal fluid and refrigeration systems.