39results about How to "Conductivity controllable" patented technology

It relates to the particle filter and regeneration system of the diesel engine, made of carbide ceramics, comprising the power and particle filter. His particle filter and regeneration system of diesel engine comprises power, electric and nonelectric heat spiral particle filter made of carbide ceramics installing together inside the housing of the purifier connected with the exhaust of the diesel engine. It is highly efficient in purification and controllable in conductivity, and fine durability. Apart from that, it is low in cost, simple in structure and easy for assembly.

The invention discloses a graphene organic silver conductive printing ink and a preparation method thereof. The conductive printing ink comprises a conductive function unit precursor, an organic silver complexing agent, an adhesive, a solvent and auxiliaries. The preparation method comprises the following steps: (A) stirring and ultrasonically dispersing the organic silver, the solvent and the organic silver complexing agent under a lucifugal condition to obtain an organic silver complexing solution; and (B) putting the graphene, the resin adhesive, the auxiliaries and the organic silver complexing solution in the lucifugal condition and stirring and ultrasonically dispersing in an environment lower than 10 DEG C, wherein the obtained uniform mixture is the graphene organic silver conductive printing ink. The graphene organic silver conductive printing ink prepared by the method disclosed by the invention is low in solid content, good in stability, good in printing performance and wide in application.

The particle filter and regeneration system of diesel engine comprises power, electric and nonelectric heat spiral particle filter made of carbide ceramics installing together inside the housing of the purifier connected with the exhaust of the diesel engine. It is highly efficient in purification and controllable in conductivity, and fine durability. Apart from that, it is low in cost, simple in structure and easy for assembly.

The invention relates to a polyaniline composite film with high barrier property, which is a film composed of polyaniline and polyvinylidene chloride copolymer microspheres with a diameter of 100-1000 nanometers. After mixing the aniline solution and the polyvinylidene chloride copolymer solution, put it into the liquid supply device of the electrospray device, spray the mixed liquid from the spray device, and then the solvent volatilizes to obtain solidified intrinsic state polyaniline on the receiving device Composite film; then obtained by irradiating under a 45W ultraviolet lamp for 1 to 30 minutes. The composite film can be formed on any material and any shape of substrate, and the thickness and conductivity of the film are adjustable. It has the properties of electromagnetic shielding, antistatic, waterproof, acid and alkali resistance, and high gas barrier. It can be widely used in military affairs. , navigation, aerospace, mining engineering, medicine and health, hardware, electromechanical, packaging and other industries.

The invention discloses a graphene conductive coating with luminescent function, which includes the following components and weight ratio: 1 part of graphene dispersion liquid; 1-30 parts of ultraviolet light curing glue; wherein, the graphene dispersion liquid is composed of the following components Composition and weight ratio: 1 part of graphene; 1 to 100 parts of deionized water; the graphene conductive coating is obtained through the production process. The graphene conductive UV glue prepared by the present invention has stable quality, simple production process, and controllable conductivity. It has the function of luminescence; it can be sprayed on non-conductive objects that need to conduct electricity to make the non-conductive objects conductive; it can also be used to spray on some heat-resistant materials and connect electrodes to be used as electric heating and low-temperature heating materials.

A ruthenium-modified sulfur-doped graphene two-dimensional material and its preparation and application. RuCl 3 ·6H 2 O and graphene oxide are added to deionized water, adjust the pH value to 0 to 6, disperse evenly with ultrasonic vibration, and then freeze-dry to remove the solvent to obtain a solid; the solid is roasted at high temperature in an inert atmosphere, cooled to room temperature, acid leached, and washed with water , dried to obtain a ruthenium-modified sulfur-doped graphene two-dimensional material. The ruthenium element-modified sulfur-doped graphene two-dimensional material prepared by the present invention has good conductivity, and the ruthenium element is evenly distributed as an active center; such ruthenium element-modified sulfur-doped graphene two-dimensional material can be used as electrocatalytic moisture Analytical hydrogen catalyst has the characteristics of low overpotential, high catalytic activity and long catalytic life.

A ZnO conductive covariant substrate vertical structure type GaN UV LED uses a nano-pattern (PPS) sapphire as an epitaxial substrate, uses a MOCVD method to grow a ZnO low temperature buffer layer and a ZnO high temperature epitaxial layer, uses a ZnO epitaxial layer as a high quality conductive substrate, a GaN UV LED epitaxial is formed in a following step, and an LED chip is peeled and transferred, thus forming the ZnO conductive covariant substrate vertical structure type GaN UV LED. The novel vertical structure type GaN UV LED can reduce the device cost, and can improve the luminous efficiency of the GaN UV LED. The ZnO conductive covariant substrate vertical structure type GaN UV LED is simple in peeling technology, low in cost, and can be applied to the flexible substrate luminous project.

The invention relates to a preparation method of a water-based paint for adjusting high insulating surface resistance. The steps are as follows: adding a dispersant into pure water to completely dissolve the dispersant to obtain an aqueous solution of the dispersant; adding aniline monomer and protonic acid to the above dispersant In the aqueous solution, stir evenly to obtain solution A; add the oxidant to pure water and stir until completely dissolved to obtain solution B; place solution A and solution B in a constant temperature tank, quickly mix solution A and solution B and stir until uniform, Polymerize at a constant temperature of -10 to 20°C for 10 to 20 hours to obtain a mixed solution; mix the mixed solution with pure water and stir until uniform to obtain a water-based coating with adjusted high insulation surface resistance. The water-based paint that the inventive method prepares can adjust the surface resistance of wood, plastics, pottery and glass to 10 3 ~10 10 Ωcm -2 , not limited by ambient humidity and temperature, the resistance of the high-insulation surface can be kept in the required range for a long time, and can be kept stable for two years, which has wide application value and industrial prospects.

The invention discloses an anode material of an electric / high-voltage coupled elastic press. It is a braided fabric obtained by mixing 30-60% carbon fiber and 40-70% polypropylene fiber or polypropylene fiber, that is, carbon fiber composite material cloth; the resistivity of carbon fiber is 36-144 ohm meters, and the tensile strength is 3530 Carbon fiber with ‑4410Mpa, denier 400‑700g / 1000m, flammability UL94V‑0, halogen content Cl<900, Br<900, Cl+Br<1500. The carbon fiber composite cloth can be installed behind the filter cloth of the anode filter frame of the conventional plate and frame filter, or the carbon fiber composite cloth can be directly replaced by the filter cloth of the anode filter frame, connected to the positive power supply, and used as an anode. In the present invention, the carbon fiber composite material is used as the anode material, and the electric conductivity is controllable, the cost is low, the service life is long, the energy utilization rate is high, and the installation mode is flexible.

The invention discloses a conductive fiber preparation method and a product thereof. The method comprises a step of uniformly coating a prepared conductive material comprising mixed solution of conductive particles or conductive polymer and photosensitive polymer and comprising uniform solution or suspension on the surface of a fiber by a dipping or spraying method, wherein a coating is cured under the irradiation of ultraviolet light, the conductive material is fixed on the surface of the fiber and the fiber is endowed with conductive performance; ultraviolet lamp light is used for irradiation, and the temperature of a lamp box is 25 to 125 DEG C; and in the curing process, the wavelength of the ultraviolet light source is controlled at 280 to 350 nanometers, the power is 150 to 250mW / cm2, and the irradiation time is 2 to 15 seconds. Compared with the prior art, the conductive fiber has the advantages of difficult drop of conductive components, durable conductivity, low resistance, soft handfeel, wearing comfortableness and the like; and the preparation method has simple process and low cost.

The invention discloses a thermal management system for a hydrogen fuel cell vehicle, comprising a first cooling circuit (1) and a second cooling circuit (2), the first cooling circuit (1) is for cooling a hydrogen fuel cell stack (11), and the first The cooling circuit (1) is provided with a first radiator (12), a hydrogen fuel stack (11) and a circulation pump (13); the first cooling circuit (1) includes a first branch provided with a deionizer (14) road (101); the second cooling circuit (2) is used to cool the hydrogen fuel cell auxiliary system and the electric drive system, and the second cooling circuit (2) is provided with a second radiator (21), an electronic water pump (22), an air compressor machine drive motor (23), air compressor controller (24), DC / DC converter (25), motor controller (26) and vehicle drive motor (27); the first radiator (12) and the second radiator The devices (21) are arranged in series in the traveling direction of the vehicle. The system has the characteristics of good heat dissipation effect and controllable conductivity of hydrogen fuel cell coolant.