29results about "Organic insulators" patented technology

An illustrative electrostatic machine includes a shaft that is configured to rotate about an axis, a rotor electrode, and a stator electrode. The rotor electrode and the stator electrode are separated by a gap and form a capacitor. The rotor electrode is fixed to the shaft. The electrostatic machine can also include a housing that is configured to enclose the rotor electrode, the stator electrode, and at least a portion of the shaft. The stator electrode is fixed to the housing. A dielectric fluid fills a void defined by the housing, the rotor electrode, and the stator electrode.

The invention discloses low-temperature curing slurry for a thick film hybrid circuit and a preparation method of the low-temperature curing slurry, and relates to the technical field of electronic slurry. Wherein the organic carrier comprises 35 to 55 weight percent of thermosetting resin and 45 to 65 weight percent of solvent; the thermosetting resin comprises at least two of epoxy resin, modified epoxy resin and organosilicon modified polyester resin, the epoxy resin is bisphenol A type solid resin, and the modified epoxy resin is an alkoxy siloxane modified product with an epoxy functional group. According to the invention, at least two of epoxy resin, modified epoxy resin and organosilicon modified polyester resin are adopted as matrix resin, the epoxy resin is bisphenol A type solid resin, a body network structure is formed after curing and crosslinking, the crosslinking density is high, the modified epoxy resin is an alkoxy siloxane modified product with an epoxy functional group, and the curing strength is high. Alkoxy siloxane contained in the resin can improve the adhesive force in the curing process, and in addition, the leveling property of the slurry can be improved.

This invention relates to the field of insulating materials for porous copper foil preparation, and particularly to an insulating material for porous copper foil preparation and its preparation method, as well as a method for preparing porous copper foil. The preparation method includes the following steps: perforating a cathode plate to obtain a cathode plate with multiple blind holes; filling the blind holes with an insulating material for porous copper foil preparation, and curing it to obtain a pretreated cathode plate; the raw materials for the insulating material are: resin, reactive diluent, thixotropic agent, leveling agent, polymerization inhibitor, and photoinitiator. The pretreated cathode plate is used as the cathode and placed in an electrolyte for electrodeposition to obtain porous copper foil. When preparing porous copper foil with the insulating material, the filling material in the blind holes can withstand more than 80 electroplating cycles without peeling off, indicating that the insulating material for porous copper foil preparation possesses excellent adhesion and electrolyte environment durability, enabling a single-filled cathode to support stable electrodeposition over an ultra-long period, significantly extending its effective service life.

A method of making a masterbatch includes the steps of forming a masterbatch including 20 wt% to 70 wt% of an acrylonitrile-butadiene copolymer based on a total weight of the masterbatch and 20 wt% to 70 wt% of an ethylene-vinyl acetate copolymer based on a total weight of the masterbatch. Next a step of pelletizing the masterbatch is performed.

The invention discloses insulating paint for carbon ceramic linear resistance marking as well as a preparation method and application thereof, and belongs to the technical field of electrical materials, the insulating paint comprises the following raw materials in parts by weight: 30-80 parts of quick-drying silicon resin, 10-40 parts of chromic oxide, 1-5 parts of a defoaming agent, 1-3 parts of a flatting agent and 10-20 parts of an amino silane coupling agent; the preparation method comprises the following specific steps: (1) weighing the raw materials in parts by weight for later use; and (2) adding the quick-drying silicon resin and zirconium balls into a ball milling tank, then sequentially adding chromic oxide, a defoaming agent and a flatting agent, carrying out ball milling until the fineness is below 30m, and finally, adding an amino silane coupling agent, and carrying out ball milling to obtain the insulating paint for carbon ceramic linear resistance marking. The insulating paint has the comprehensive performance of high electrical insulating property, good adhesion, high activity, high temperature resistance, high adhesive force and the like, and is low in viscosity, reasonable in cost and high in practicability.

Systems and methods presented herein provide for elastomeric and flexible cables. In one embodiment, the cables are configured with elastomeric cabling and circuitry. For example, a flexible circuit line (or lines) may be wrapped about an extruded elastomeric substrate (e.g., a polymer). Integrated circuits (e.g., sensors, accelerometers, light emitting diodes, controllers, microprocessors, etc.) may be disposed at various points along the circuit line(s). The cable may then be wrapped with a Polytetrafluoroethylene (PTFE) tape than can be heated to shrink about the cable for protection of the underlying circuitry. Then, the cable may be surrounded with a layer of polymer and extruded to form an elastomeric and flexible cable.

Polymer materials, in particular materials including one or more polymers where the degree of electrical conductivity may be controlled. Materials, for example one or more polymers (or monomers and / or oligomers), optionally one or more easily-processable, thermo-transformable polymers, including one or more electron rich domains, which can be exposed to at least one of: sufficient temperature (for example for temperature-dependent processing), a mechanical force / pressure, magnetic field and / or an electric field, and consequently increase the conductivity of the materials. Methods of forming the materials and applications and uses thereof.

The present invention relates to a composition comprising specific esters and its uses as a lubricant and / or a liquid dielectric coolant.

Disclosed are: a battery cell; and a battery pack and a vehicle, including same. A battery cell according to an embodiment of the present invention comprises: an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate; a battery can in which the electrode assembly is accommodated; an electrical connection member electrically connected to the electrode assembly; and an insulator interposed between the battery can and the electrode assembly, wherein the insulator is fixed to the battery can.

The utility model discloses a kind of polypropylene insulated submarine composite cables, it is related to cable technical field, solve the poor waterproof effect, weak compression resistance and the low cable life problem of submarine composite cable in prior art;Including cable core structure;The cable core structure includes conductor layer and insulating layer being set on conductor layer, multiple-core optical fiber is arranged in the conductor layer, the outside of the cable core structure is provided with tape layer;Further include: outer protective structure, the outer protective structure includes sheath, armoring layer and water-blocking structure layer, the sheath includes metal sheath layer, inner sheath layer and outer sheath layer;The cable scheme of the utility model can withstand greater force without easily breaking, the durability and reliability of material are effectively improved, and utilize water-blocking tape, high-efficiency water-blocking yarn and metal sheath layer cooperation under the joint action, form sealed barrier, further improve the waterproof performance of the composite cable.

The present invention relates to a composition comprising specific esters and its uses as a lubricant and / or a liquid dielectric coolant.

The application belongs to the technical field of new materials for enameled wire, and discloses a heat-conducting insulating enameled copper flat wire and a preparation method thereof. The preparation method comprises the following steps: 1) preparing graphene-aluminum oxide composite particles; 2) uniformly mixing the graphene-aluminum oxide composite particles and a polyimide resin solution to obtain a mixed paint; and 3) vacuum deaerating the mixed paint, then coating the mixed paint on the surface of the copper flat wire, and performing heat curing treatment, thereby obtaining the heat-conducting insulating enameled copper flat wire. The heat-conducting insulating enameled copper flat wire prepared by the application has good heat-conducting performance, thereby prolonging the service life of the enameled wire.

The present application relates to the technical field of ceramics, and particularly relates to a high-strength suspension type porcelain insulator based on gradient porosity ceramics and a preparation method thereof. The porcelain body of the insulator is composed of an outer layer, a transition layer and an inner layer buffer layer, and the median pore diameters of the three layers increase from outside to inside. The outer layer is a low-porosity dense load-bearing layer, and the transition layer and the inner layer each contain reactive coated pore-forming microspheres of a specific particle size to form a gradient porosity structure. The structure design enables the outer layer to effectively bear bending load and reduce the risk of moisture adsorption, and the transition layer and the inner layer with gradually increasing internal pore diameters can gradiently buffer stress peaks to avoid surface crack initiation. The present application adopts a step-by-step grouting and segmented debinding and sintering process to ensure good interlayer bonding and accurate pore formation, so that the insulator simultaneously has high room temperature bending strength, temperature cycle stability and high wet power frequency insulation performance, and solves the industry problem that related performances are difficult to be simultaneously improved.

A power cable characterized in that the ratio of the total mass of the materials of the power cable used to make the power cable and coming from a circular economy source to the total mass of the materials used to make the power cable is at least 20%.

A power cable characterized in that the ratio of the total mass of the materials of the power cable used to make the power cable and coming from a circular economy source to the total mass of the materials used to make the power cable is at least 20%

The present invention relates to a composition comprising specific esters and its uses as a lubricant and / or a liquid dielectric coolant.

The invention discloses a solid all-insulation mining flame-proof and intrinsic safety type high-voltage combined vacuum power distribution device based on a composite insulating material. The preparation method of the composite insulating material comprises the following steps: preparing a modified nano filler, preparing a glue solution, carrying out vacuum defoaming, pretreating a mold, pouring, carrying out gradient curing, demolding and sandblasting, and coating a carbon-based semi-conductive layer material. The composite insulating material has good insulation, heat conduction and resistance to various severe environments. A solid all-insulation mining flame-proof and intrinsic safety type high-voltage combined vacuum power distribution device based on a composite insulating material comprises a modularized splicing installation shell, a circuit breaker integrated inside the modularized splicing installation shell, and a flame-proof wall-penetrating terminal which is formed by pouring the composite insulating material, so that all sealing, all insulation, all shielding and insulating surface continuous grounding are realized; the high-voltage loop insulation surface has zero potential, the risks of insulation discharge and interphase short circuit are avoided, the problems of poor insulation performance and large equipment size of a traditional mining flame-proof and intrinsic safety type high-voltage power distribution device are effectively solved, and safe and efficient power supply under a mine is guaranteed.

The application relates to the fields of dielectric materials and energy storage materials, and discloses a high-temperature dielectric polymer as well as a preparation method and application thereof, the preparation method comprising the following steps: subjecting 5-norbornene-2,3-diformamide to a reduction reaction through lithium aluminum hydride to obtain a 5-norbornene-pyrrolidine intermediate; placing the intermediate and p-toluenesulfonyl chloride in a chloroform solution, and adding triethylamine dropwise to react; obtaining norbornene pyrrolidine benzene sulfone monomers; subjecting the monomers to ring-opening metathesis polymerization reaction through Grubbs catalyst to obtain poly-norbornene pyrrolidine benzene sulfone; placing the poly-norbornene pyrrolidine benzene sulfone and p-methylbenzenesulfonyl hydrazide in a toluene solution, and subjecting to hydrogenation reaction to obtain the target polymer. The polymer of the application only needs to be applied with a low electric field intensity of 350 MV / m at 150 DEG C, and the electric polarization energy storage density (charge and discharge efficiency > 90%) of about 10.8 J / cm 3 can be obtained, which exceeds existing high-temperature polymer dielectric materials.

The invention relates to the technical field of paste, and particularly provides dielectric paste and a preparation method and application thereof.The dielectric paste is composed of, by mass, 65-80 wt% of glass ceramic powder and 20-35 wt% of organic carriers, and the glass ceramic powder is composed of, by mass, 25-45 wt% of SiO2, 10-20 wt% of BaO, 10-30 wt% of Al2O3, 0-20 wt% of SrO, 0-10 wt% of MgO, 5-10 wt% of ZnO, 1-3 wt% of coloring metal oxide and 4-9 wt% of rare earth oxide. The expansion coefficient of the dielectric paste is similar to that of an aluminum oxide substrate, the dielectric paste has good matching performance, the dielectric paste is compact and flat after being sintered into a film, good insulativity can still be kept at the high temperature of 500 DEG C, breakdown voltage is high, leakage current is small, and safe and stable use of low-expansion substrate thick-film circuits such as aluminum oxide and the like in severe environments can be met.

Some implementations include a downhole electrical cable including a conductor, a first insulation covering the conductor, and a second insulation covering the first insulation. The second insulation may include a first polymer layer and a first metallic layer coupled to the first polymer layer.

The invention relates to the field of cables, in particular to a flexible cable for lithium battery charging and discharging equipment and a preparation method of the flexible cable. The flexible cable comprises a conductor and a PVC (polyvinyl chloride) insulating layer coated outside the conductor, the raw materials of the PVC insulating layer comprise the following components in parts by weight: 35-40 parts of PVC resin, 30-35 parts of modified diatomite, 15-20 parts of calcium carbonate and 5-10 parts of a polymerization additive; the modified diatomite is diatomite loaded with a cold-resistant plasticizer and grafted with amino groups on the surface. The modified diatomite is added into the raw materials of the PVC insulating layer, so that the volume resistivity of the PVC insulating material can be improved. The dioctyl phthalate and the diisooctyl phthalate are adopted as the cold-resistant plasticizers, the softness of the PVC material is improved, the cold-resistant plasticizers are loaded on the surface of the diatomite, and amino groups are grafted on the surface of the diatomite, so that the dispersity of the diatomite in a PVC system can be improved.

The present invention relates to a composition comprising specific esters and its uses as a lubricant and / or a liquid dielectric coolant.

The present invention relates to a composition comprising specific esters and its uses as a lubricant and / or a liquid dielectric coolant.

The invention discloses a benzo-silicon heterocyclic compound as well as a preparation method and application thereof. The benzo-silicon heterocyclic compound has the following structural formula: in the formula, R1 is selected from phenyl, 4-methylphenyl, 4-chlorphenyl or, R2 is selected from-H, methyl or-Cl, and R3 is selected from-H or phenyl. The benzo-silicon heterocyclic compound can be used as a raw material for synthesizing a medicine or an electrical insulating material, and the preparation method has the advantages of cheap and easily available raw materials, simplicity, convenience, high efficiency, mild reaction conditions, high atom economy, easiness in product purification, greenness, economy and the like, and is suitable for large-scale industrial production and application.

A capacitor assembly that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that includes a porous anode body that contains a valve metal compound, a dielectric that overlies the anode body and includes an oxide of the valve metal compound, a solid electrolyte that overlies the dielectric, wherein the solid electrolyte includes at least one conductive polymer layer that contains a sulfonyl ion, and an organofunctional silane that is bonded to the oxide of the dielectric and is capable of bonding to the sulfonyl ion of the conductive polymer layer.

The invention discloses a tow chain cable and a preparation method thereof, the tow chain cable comprises a cable core formed by twisting a plurality of composite unit wires, the center of each composite unit wire is a conductor (1), an optical fiber (3) is arranged on the outer side of the conductor, the conductor (1) and the optical fiber (3) are wrapped by an insulating layer (2), and the insulating layer (2) is made of a dynamic self-repairing composite material; the self-repairing composite material comprises a furan functional group grafted polymer matrix, bismaleimide serving as a dynamic covalent cross-linking agent and a nano reinforcing agent, and self-repairing of damage is achieved through a thermally excited Diels-Alder reaction. The preparation method comprises the steps of furan functionalized prepolymer preparation, composite unit wire preparation, cabling, post-curing treatment and the like. According to the self-repairing function of the cable, microscopic damage generated in operation can be repaired from the molecular level, accumulation and expansion of the microscopic damage are prevented, real-time and distributed in-situ monitoring of stress and temperature in the cable is achieved through the embedded optical fiber, local overload or abnormal temperature rise can be early warned in advance, and predictive maintenance is carried out.

The invention discloses an extremely-cold-resistant high-breakdown-strength insulating impregnant as well as a preparation method and application thereof, and belongs to the technical field of manufacturing of electronic and electrical insulating materials. The invention aims to solve the problem that the electrical performance, the kinematic viscosity and the insulating performance of the impregnant used by the existing electrical equipment in the extremely cold region cannot meet the performance requirements under the extremely cold condition, so that the electrical equipment has frequent faults. In order to improve the performance of the impregnant under the extremely cold condition, two or more substances of monobenzyl toluene, dibenzyl toluene, phenyl ethylbenzene ethane and 1, 1-diphenyl ethane are compounded, and then surface-modified nano-particle raw materials are mixed into the compounded impregnant, so that the surface-modified nano-particle impregnant is prepared. According to the present invention, the electrical performance including the breakdown voltage of the impregnant is improved, the kinematic viscosity under the extremely cold condition is ensured, such that the impregnant can well meet the application requirements under the extremely cold condition, and the advantages of simple process, low cost, environmental protection and high efficiency are provided.