39results about How to "Excellent insulation and thermal conductivity" patented technology

The invention provides a preparation method of an epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating, comprising the following steps: preparing raw materials; synthesizing an organosilicon pre-polymer; synthesizing an epoxy-modified organosilicon resin; and preparing the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating. The invention also provided the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating prepared by the method. The coating is composed by the epoxy modified organosilicon resin, fillers, a coupling agent and solvents. The coating prepared by the method in the invention takes account of insulation, thermal-conductivity, and high-temperature resistance at the same time, has coating adhesion of first level, hardness of 5H, a breakdown voltage of 1800V / 0.5mA, 2 seconds, a heat transfer coefficient of larger than 100W / (m<2>.K), and no obviously changed coating at a temperature of 250 DEG C for 24 hours, therefore the coating can be widely used in various industrial equipment and household appliances.

The invention discloses an insulation heat conduction glass fiber reinforced PC / ABS (Poly Carbonate / Acrylonitrile Butadiene Styrene) alloy material and a preparation method thereof, belonging to the technical field of alloy materials. The alloy material disclosed by the invention comprises the following components in parts by weight: 50-90 parts of PC, 10-50 parts of ABS, 30-150 parts of heat conduction material, 10-30 parts of glass fiber, 2-5 parts of coupling agent, 0.1-1 part of antioxygen and 0.3-2 parts of glass fiber rich surface preventing agent. The invention also discloses a preparation method of the alloy material. The insulation heat conduction glass fiber reinforced PC / ABS alloy material keeps excellent physical performance of a PC / ABS alloy material, has excellent insulation heat conduction performance and heat conduction property, is enlarged in the application range in the market, and is especially applied to the electronics.

The invention provides a superhigh heat conduction metal-based circuit board as well as a preparation method thereof. A layer of AIN (aluminum nitride) ceramic coating or AIN+DLC (aluminum nitride+diamond like carbon) composite coating is coated on the surface of a metal-based plate material, such as aluminum, copper so as to form a superhigh heat conduction circuit board. The superhigh heat conduction metal-based circuit board is applied to the fields which need superhigh heat conduction, such as high-power LED (light-emitting diode) devices or modules, improves the heat conduction and heat radiation capability of a base plate as well as meets the requirements of heat conduction and dissipation of electric appliance.

The invention relates to a composite material, particularly to an insulating and heat conducting polyamide composite material with high cost performance and a preparation method of the composite material. The components are as follows by weight percentage: 40-95 of polyamide, 5-35 of common modified graphite, 1-10 of modified expanded graphite, 1-10 of a modified flake inorganic filler, 1-5 of a lubricant, and 0.1-1 of an antioxidant, and the sum of above components is 100%. The preparation method is as follows: adding the common modified graphite, the modified expanded graphite and the modified flake inorganic filler into a blending machine, blending for 5-10min at a temperature of 50-90 DEG C to obtain a modified heat conducting filler; adding polyamide, the modified heat conducting filler, the antioxidant and the lubricant into the blending machine, and blending for 5-10min; adding the uniformly mixed materials into a main feed hopper of a double screw extruder, and performing melt extrusion and granulation at a temperature of 230-260 DEG C. The composite material disclosed by the invention is good in insulating and heat conducting performance and good in comprehensive mechanical property.

The invention relates to an insulating heat-conducting adhesive film for a heating device and the heating device. The insulating heat-conducting adhesive film is prepared from the following componentsin percentage by mass: 10%-70% of epoxy resin, 4.5%-50% of thermoplastic resin and / or synthetic rubber, 20%-80% of heat conducting filler and 1%-10% of a curing agent. The insulating heat-conductingadhesive film has excellent bonding, insulation, heat conduction, flame retardance and weather resistance, and the heating device made of the insulating heat-conducting adhesive film has the advantages of low energy consumption, high heating speed, high safety, long service life and the like.

The invention discloses a calcium sulfate whisker modified polyphenylene sulfide composite material and a preparation method thereof. The composite material comprising the following components in parts by weight: polyphenylene sulfide 35-50 parts, calcium sulfate whisker 10-20 parts, thermal conductive filler 30-40 parts, coupling agent 2-5 parts, antioxidant1010 0.2-0.5 part and lubricant 0.5-1.5 parts. The preparation method of the calcium sulfate whisker modified polyphenylene sulfide composite material comprises the steps of: pre-processing the thermal conductive filler and the calcium sulfate; adding the pre-processed thermal conductive filler, the polyphenylene sulfide, the antioxidant1010 and the lubricant into a high-speed mixer, and mixing for 5-15 min; and then adding the modified calcium sulfate whisker and mixing for 4-6 min; pelletizing the obtained mixture by extruding; and carrying out injection molding on the pellets to obtain the finished product. The calcium sulfate whisker modified polyphenylene sulfide composite material provided by the invention has the advantages of good insulation and thermal conductivity and excellent thermal physical property and is particularly applicable to electronic products and weaponry, electrical communication, electrical equipment and instruments.

The invention discloses thermal insulation coating for waterborne acrylic finishing coat. The thermal insulation coating contains the following raw materials in parts by weight: 20-60 parts of acrylicemulsion resin, 10-15 parts of hollow glass microspheres, 10-15 parts of pigment, 10-30 parts of filler, 0.1-2 parts of wetting agent, 0.1-2 parts of antifreezing agent, 0.1-2 parts of thickening agent, 0.1-2 parts of dispersing agent, 0.1-2 parts of neutralizing agent, 0.1-2 parts of antifoaming agent, 0.1-2 parts of leveling agent, 0.1-5 parts of coalescing agent and 10-30 parts of water. The thermal insulation coating for waterborne acrylic finishing coat has smooth appearance, glass microspheres therein, good thermal conductivity isolation, flexibility, weather resistance, water resistance, easy application property, stain resistance, and bonding strength possessed by an outer wall.

The invention discloses an LED light bar image display system featured by comprising a main control system, an image-text signal subsystem, an LED light bar image display screen, and an LED light barassembly; the main control system comprises an image-text signal conversion subsystem and a transmission storage subsystem. The image-text signal subsystem is electrically connected with the image-text signal conversion subsystem; the image-text signal conversion subsystem is electrically connected with the LED light bar image display screen; the signal subsystem is also electrically connected with a storage subsystem; the storage subsystem is electrically connected with the signal conversion subsystem. The advantages are that one or more rows of lamp beads are placed, thus greatly increasingthe LED brightness; a power line and a signal line are welded in the middle of the light bar circuit, thus greatly reducing the calorific value of the light bar, and saving electric energy; a diode and a stabilivolt are added on the light bar, thus effectively preventing the LED light bar damages caused by thunders or unstable voltage of the power transmission line.

The invention discloses a strong insulating material and a preparation method thereof. The strong insulating material comprises a wearing layer, a barrier layer, an epoxy resin layer, a mica paper layer, an alkali-free glass fiber cloth layer and an antistatic layer from top to bottom, the wearing layer and the barrier layer are bonded by an adhesive, the mica paper layer and the alkali-free glassfiber cloth layer are bonded by the adhesive, and the alkali-free glass fiber cloth layer and the antistatic layer are bonded by the adhesive; the wearing layer is a polytetrafluoroethylene film; thebarrier layer is a polyvinylidene chloride film; the epoxy resin layer is formed by coating and curing of an epoxy resin coating; and the adhesive is prepared by uniformly mixing silicone resin, dibutyltin dilaurate and hexagonal boron nitride. The multilayer structure of the wearing layer-the barrier layer-the epoxy resin layer-the mica paper layer-the alkali-free glass fiber cloth layer-the antistatic layer improves the insulating performance, the thermal conduction performance and the heatproof and flame-retardant performances of the strong insulating material.

The invention discloses a battery module which comprises a main body unit comprising a plurality of battery cores, a framework and two conductive assemblies, a shell wrapping the main body unit, a first heat conduction unit mounted on the framework, and a second heat conduction unit mounted on the multiple conductive assemblies, wherein the first heat conduction unit comprises a plurality of firstassemblies, and one end of each first assembly is in contact with at least one battery core, and the other end of the first assembly is in contact with the shell; the second heat conduction unit comprises a second body, and one end of the second body is in contact with the multiple conductive assemblies, and the other end of the second body is in contact with the shell. Therefore, under a condition of keeping the wrapping property of the shell, heat energy produced by a plurality of battery bodies and conductive pole pieces can be effectively conducted to the shell, and heat dissipation is carried out on the shell.

The invention relates to a thermosetting insulated filler and a forming process thereof. The thermosetting insulated filler comprises the following components in percentage by weight: 65-72% of molten silicon crystal powder, 2-4% of aluminum dihydrogen phosphate powder, and the balance of water. The particle size of the molten silicon crystal powder is 200-400 mesh. The formed slurry has good fluidity, and the formed material has good solidifying effect and excellent insulating and heat-conducting properties and can resist a high temperature up to 900 DEG C. The thermosetting insulated filler of the invention has the characteristics of low cost, easily-accessible raw material, and simple forming process, and has less process steps compared to the prior art.

The invention discloses a preparation method of reinforced polybutylene terephthalate flame-retardant heat-conducting material. The method is to firstly add polybutylene terephthalate and processing aids to a high mixer and then add composite flame retardants, flame retardant synergists, nano heat conducting agents, toughening agents, anti- Oxygen and stabilizer are mixed evenly and added to the twin-screw extruder from the main feeding port, and glass fiber is added to the twin-screw extruder. After the material is extruded, it is water-cooled, pelletized, and then packaged to obtain the heat-conducting material. The thermally conductive material not only has excellent thermal conductivity, flame retardancy and mechanical properties, but also mainly solves the heat dissipation problem caused by the miniaturization of electronic and electrical products due to technological progress.

The invention discloses a resin composition with high thermal conductivity and safety. The composition comprises poly acyl, a filler coupling agent, a thickening agent, a hydrolysis resistant agent, astabilizer, a lubricating agent and a nucleating agent. Stability and safety of materials are enhanced, the problem about potential safety hazard easy to produce due to existence of moisture in ordinary polyamide insulating plastics is solved, and the resin composition can be widely used in industries of electronics, electricity, lighting and the like.

The present invention discloses a new-type composite terminal, which comprises a terminal body, a thermal sensing contact, a connecting terminal and a telescopic spring. The terminal body comprises a tail connecting section and a front contacting section. The thermal sensing contact is connected with the front contacting section. The thermal sensing contact and the contacting surface of the front contacting section are of a stepped shaped structure that cooperates with each other. The thermal sensing contact is made of the nickel-chromium alloy and its surface is coated with a poly tetra fluoroethylene layer; the bottom of the thermal sensing contact is connected with the connecting terminal; and the connecting terminal is connected with the telescopic spring. The telescopic spring is made of memory alloy materials and is in the form of a spiral structure spirally arranged along the length of the terminal body; and the telescopic spring shortens and deforms along the axial direction of the spiral structure after its temperature reaches the phase transition temperature. The composite terminal of the invention has a reasonable structure, is good in strength, does not deform easily, has a good connection temperature and achieves good safety.

The invention discloses a thermally conductive insulating resin composition. The composition comprises polyimide, a filler coupling agent, a toughening agent, a hydrolysis resistant agent, a stabilizer, a lubricant and a nucleating agent. The composition enhances the stability and safety of a material, and the problem that potential safety hazards of an ordinary polyamide insulating plastic are easily generated due to the presence of moisture is solved. The composition can be widely used in industries such as electrical and electronic industries, lighting and the like.

The invention discloses a high-performance insulating resin composition, which comprises the following components: polytetrafluoroethylene, filler coupling agent, toughening agent, hydrolysis-resistant agent, stabilizer, lubricant and nucleating agent. According to the invention, the stability and the safety of the material are enhanced, and the potential safety hazard problem of polyamide insulation plastic, which is easy to generate due to the existence of water, is solved. The composition can be widely applied to industries such as electronics, electric and lighting, and the like.

The invention provides an insulating impregnated dry type environment-friendly type transformer. The insulating impregnated dry type environment-friendly type transformer is characterized in that theintermediate parts of the top and bottom ends of a metal box body are respectively embedded with a top conductive plate and a bottom conductive plate through fixed grooves; the front and rear sides ofthe metal box body are each welded with a ventilation module, and vents are embedded into the peripheral of the intermediate part of the ventilation module; the intermediate part of the front end ofthe metal box body is movably connected with a door body through a rotating shaft; the inner wall surface of the metal box is covered with an insulating paper layer; the top end of the metal box bodyis provided with a wire; the bottom end of the wire is welded with a conductive cone; the middle part of the inner wall of the metal box is fixedly connected with an insulating seal column through a fixing ring; the upper and lower ends of the inner wall of the insulating seal column are each provided with a female seat; magnetic rings are welded on the inner side of the female seats; coils are wound around the outer wall of the magnetic rings; an air passage is embedded in the inner wall of the each magnetic ring; and an energizing block is embedded into the middle part of the top end of theinsulating seal column is embedded. The insulating impregnated dry type environment-friendly type transformer is stable in the whole structure, can effectively alleviate the damage of internal components, has good conductivity and transformation capability, is high in the heat dissipation speed, and is energy saving and environmentally friendly.

The invention discloses a high-performance resin composition. The composition is prepared from polyamide, filler coupling agent, flexibilizer, hydrolysis resistant agent, stabilizer, lubricant and nucleating agent. The high-performance resin composition has the advantages that the material stability and safety are improved, thereby solving the problem that ordinary polyamide insulation plastic generates potential safety hazards easily due to the presence of moisture. The high-performance resin composition can be widely applied to industries, such as electronic and electrical engineering, illumination and the like.

The invention discloses an anti-cracking method for butt joint of prefabricated immersed tube concrete members. The method comprises the following steps that a heating mechanism is preset at the end,linked with a new concrete member, of an old concrete member, the end part of the old concrete member is heated to a peak temperature greater than or equal to a pouring temperature of the new concretemember, and the temperature is kept unchanged; the new concrete member is poured so that the new concrete member is linked with the end part of the heated old concrete member; and when the pouring temperature of the new concrete member reaches a peak value, the heating mechanism is closed, so that the end part of the old concrete member and the new concrete member start to be synchronously cooledfrom the same temperature peak value. According to the method, the operation is simple and convenient, the construction operation is convenient, and the effect of reducing the cracking risk of prefabricated immersed tube concrete is obvious.

The invention discloses a magnesium oxide nanocrystalline coated graphene-epoxy resin composite material and a preparation method thereof, aims to avoid the defects that the existing graphene packing in an epoxy resin matrix is low in heat conductivity coefficient and has no electrical insulating property, and provides an epoxy resin composite material with low electrical conductivity and high thermal conductivity. According to the preparation method disclosed by the invention, the magnesium oxide nanocrystalline coated graphene composite material is uniformly dispersed into epoxy resin and solidified and molded, the insulating property of magnesium oxide as well as the good thermal conductivity of magnesium oxide and graphene can be utilized to effectively reduce the electrical conductivity of epoxy resin and improve the heat conducting property of epoxy resin; furthermore, the dispersity of the magnesium oxide nanocrystalline coated graphene composite material is good in epoxy resin, so that the heat conductivity is good when the additive amount is low. The magnesium oxide nanocrystalline coated graphene-epoxy resin composite material prepared according to the preparation method disclosed by the invention has a huge application prospect in the electronic packaging material field.