135results about How to "Insulate from heat" patented technology

The invention provides a graphene / polysiloxane composite coating material and a preparation method thereof. The method comprises the following steps: modifying the graphene surface with active groups by a chemical modification technique to obtain modified graphene, mixing the modified graphene with a silane compound, a dispersion medium, a non-essential comonomer and a non-essential accelerator, and carrying out hydrolytic condensation or hydrolytic condensation-free radical polymerization to generate a graphene / polysiloxane composite resin in situ; and mixing the resin with a non-essential blend resin, a non-essential curing agent, a non-essential solvent, a non-essential pigment and filler and a non-essential aid, and carrying out physical blending, amino epoxy addition reaction, Michael addition reaction and the like to form a film, thereby obtaining the graphene / polysiloxane composite coating material. The uniformly dispersed graphene lamellae and polysiloxane have strong interface effects, also have the gas / liquid barrier and heat shielding effects, and endow the coating with excellent corrosion resistance, flame retardancy and the like, thereby greatly enhancing the mechanical properties, corrosion resistance, scratch resistance, wear resistance and the like of the coating.

A welding torch comprising: a main cylindrical conductive assembly with a front diffuser section having a plurality of circumferentially spaced shielding gas diffuser orifices for directing shielding gas radially outwardly from the assembly, a forwardly facing threaded bore extending through a cylindrical support nose and an elongated wire passageway coaxial with the threaded bore and opening at the rear end of the assembly. An insulated, cylindrical protective sleeve fitted around both the support nose and the diffuser orifices where the sleeve has a front clearance opening and circumferentially spaced openings communicated with the diffuser orifices and a contact tip having a central wire guide bore with a diameter only slightly larger than the diameter of the welding wire, a threaded rear body, a front extension passing through the front clearance opening and a radially extending flange between the rear body and the front extension to hold the protective sleeve around the nose when the body is screwed into the threaded bore of the main assembly.

The invention is a portable, non-pressurized oxygen generation device. A first chamber holds an oxygen liberating chemical, and a catalyst from a second chamber begins the oxygen liberating reaction when the two chemicals mix. The chemicals are pre-measured, and oxygen generation can begin within seconds of activation.

The invention discloses a novel cigarette heater provided with an aerogel heat-insulating layer. The novel cigarette heater comprises a shell 1, a heating element 3, a heating chamber 4 formed by the heating element 3, and a heat-insulating layer 2 positioned between the heating element 3 and the shell 1. The novel cigarette heater is characterized in that the heat-insulating material of the heat-insulating layer 2 is aerogel; the heat-insulating layer 2 is partitioned into an inner layer 2-1 and an outer layer 2-2; the inner layer 2-1 is in direct contact with the heating element 3; the outer layer 2-2 is positioned between the inner layer 2-1 and the shell 1; the aerogel porous structure of the outer layer 2-2 of the heat-insulating layer 2 is filled and / or adsorbed with a phase change material. The aim of protecting a user is fulfilled in the presence of the heat-insulating layer; moreover, the heat loss of the heating element can be reduced, and the heat energy utilization ratio is increased.

Suppressor sleeves have longitudinal interior splines and venting valleys and exterior ribs arranged at angles relative to the interior splines. One or more sleeves and caps are combined to provide suppressor sleeve assemblies.

The invention discloses an anticorrosion thermal insulation heat reflecting paint for a storage tank and a preparation method thereof. The paint comprises primer and finishing coat, wherein the primer comprises a component A and a component B, the weight ratio of the component A to the component B is (2-8):1, the molar ratio of epoxy group of the component A to reactive hydrogen of the component B is 1:1, the component A and the component B are mixed for use, the finishing coat comprises another component A and another component B, the weight ratio of the component A to the component B is as shown in the specification, the molar ratio of content of hydroxy in the component A to content of NCO in the component B is 1:1, and the component A and the component B are mixed for use. The paint has excellent corrosion resistance, according to national standard, after a cold-roll steel sheet is coated with thermal insulation anticorrosion paint and is maintained, a neutral salt spray test is carried out on the steel sheet for 1000 hours, and then the test shows that the sample does not have corrosion phenomena like blistering and peeling off, so that the paint has a good effect in protecting the surface of the steel from being corroded, and also has good chemical resistance.

The invention discloses a low-smoke non-halogen high-flameproof elastic polyolefin wire and cable plastic, which comprises the following parts: 40-80% EVA elastics (ethene-vinyl acetate copolymer), 20-50% POE elastics (ethene-hexaethene copolymer), 5-15% EMA elastics (ethene-methyl acrylate copolymer), 30-70% magnesium hydroxide or aluminium hydroxide, 20-40% nanometer magnesium hydroxide, 0.1-0.6% DCP (peroxide diisopropyl benzene), wherein the hardness is not more than 85 A with strength not less than 9.0Mpa and extending rate not less than 150%; the flameproof property reaches UL1581 VW-1, which is excellent flexible macromolecular mixing material.

The invention relates to the field of preparation of polypropylene composite materials, in particular to an environment-friendly and flame-retardant polypropylene composite material. The environment-friendly and flame-retardant polypropylene composite material is prepared from 100 parts of polypropylene, 0.1-2 parts of modified graphene, 0.5-3 parts of modified carbon nano tubes, 10-20 parts of an inorganic flame retardant, 5-10 parts of a compatilizer, 3-10 parts of a toughening agent, 0.1-0.3 parts of an antioxidant and 0.1-0.3 parts of a heat stabilizer. Graphene, the carbon nano tubes and the inorganic flame retardant are added to polypropylene resin, and a brand-new flame retardant system is formed; dispersing performance of graphene in a polymer system is improved through modification of graphene; migration of combustible matter in a polymer matrix can be effectively inhibited; a compact protective carbon layer is formed on the surface of the polymer matrix by graphene in the burning process of the composite material, and finally, the flame-retardant effect is achieved.

The invention relates to a flexible heat preservation assembly. The flexible heat preservation assembly is characterized in that the flexible heat preservation assembly comprises one or more layer of heat insulation reflecting component and heat insulation layers, wherein the heat insulation reflecting component comprises metal foil pieces and flexible heat insulation mats, and the flexible heat insulation mats are clamped between the metal foil pieces; and the number of the flexible heat insulation layers is more than one. The flexible heat preservation assembly is good in heat preservation performance, and heat emitted by high-temperature equipment can be effectively isolated; and in addition, the flexible heat preservation assembly is flexible in arrangement and economical, and the number of layers of the stacked structure can be set according to requirements.

The invention discloses a container type electricity generation box for railway transportation. The container type electricity generation box comprises a box body, two diesel generator units, a fuel oil device, a fire protection system and two electric devices, wherein the diesel generator units, the fuel oil device, the fire protection system and the electric devices are all placed in the box body. The fuel oil device comprises two main oil tanks mounted in the middle of a box bottom frame assembly, and an auxiliary oil tank connected with oil outlets of the main oil tanks through oil tank connection pipelines correspondingly, and one of the main oil tanks communicates with the other main oil tank through the corresponding oil tank connection pipeline. Each diesel generator unit comprises a diesel generator mounted at one end of the box bottom frame assembly, a fuel heater mounted in the diesel generator, and a smoke discharge pipeline connected with the diesel generator. The container type electricity generation box is mainly applied to the railway transportation and supplies electricity to a refrigeration box and a heating container which conduct the railway transportation without power, and a remote control cabinet is arranged in the box body so that the electricity generation box can be monitored under the unattended condition.

The invention is used for non salt inflaming retarding system in preparation of PBT project plastics and a PBT complex materials and a preparation method thereof, belonging to a macromolecule material field. The PBT complex material is prepared by both drawing PBT resin, glass fiber, and toughener together with matching two components of A and B into a double screw extruder, extruding, cooling and particle slicing; wherein, A component is master batch prepared by mixing organic rare-earth organic phosphate salt nucleating agent,an antioxygen agent, an exterior lubricant and polyethylene; B component is non salt inflaming retarding system formed by mixing and matching three organic phosphonate (salt) according to a ratio of 2:1:1. The non salt inflaming retarding system of the invention has fine heat resistant, hydrolyzation resistant and inflaming retarding performance; products prepared by adding the inflaming retarding system has the advantages of excellent comprehensive performance, and being provided with environmental friendly, environment cross bonding matter content meeting European Union RoHS standard and being suitable to electronic electric equipment products.

The present invention provides a deep fat fryer separating the flue from the splash back panel and with a flue opening directed not upwardly, but rearwardly from the flue. By arranging the flue opening on the rear wall, the opening is protected from grease fallback (e.g., dripping from an overhead exhaust hood) or other foreign objects falling into the opening. The splash back panel further provides a seamless curved design that is easy to clean and also insulated from the heat of the flue. A baffle installed within the flue allows the combustion products to mix, cool, and slow upon exiting the baffle opening and entering the atmosphere reducing the exit temperature and also reducing the heating of the splash back panel.

A block (10) for construction capable of constructing a flat structure by arranging the plurality of blocks in a flat state with four outer peripheral surfaces thereof, that are, an upper surface (10a), a lower surface (10b), a left side surface (10c), and a right side surface (10d) brought into contact with each other. In the block (10) for construction, a plurality of through holes (11) for inserting bar-like stretching members therein are formed parallel with the front surface (10f) and the rear surface (10e) thereof, and recessed parts (12) are formed in the upper surface (10a) and lower surface (10b) forming outer peripheral surfaces crossing the axial direction of the through holes (11) to dispose the other stretching members in a direction three-dimensionally crossing the stretching members inserted into the through holes (11). By using the block (10) for construction, the flat structures such as the wall parts and floor parts of a building can be easily constructed in a rather short period, and the durabilities of these flat structures can also be increased.

The invention discloses an ionic monomer containing a benzo heterocyclic sulfonate structure, an ionomer using the same for flame resistance and molten resistance, and a preparation method and application thereof. The ionomer for flame resistance and molten resistance is prepared by esterifying a copolyester monomer of dibasic acid or ester thereof and C2-C8 polyol, a catalyst and the ionic monomer containing the benzo heterocyclic sulfonate structure with a structural general formula as shown in the specification by a direct esterification method or an ester exchange method through a polycondensation reaction, wherein the ionic monomer containing the benzo heterocyclic sulfonate structure can form an ionic cluster in a molecular chain of the ionomer to form a stable physical crosslinkingnetwork; In addition, the ionomer has good carbon-forming property, when the ionomer is introduced with a low content, not only can the melt strength of the polymer be increased, but also stable and compact carbon layer can be formed to restrain the molten drop phenomenon, so that the ionomer can be used to prepare textile fibers and cationic dyeable polyester textiles, engineering plastics and packaging materials at room temperature. The preparation method is mature, simple and convenient, and industrial production can be easily achieved.

The invention discloses nanometer heat insulation paint and a preparation method thereof. The nanometer heat insulation paint is mainly prepared from the following raw materials in parts by weight: 30to 40 parts of silicone acrylic emulsion, 6 to 10 parts of ceramic microbeads, 5 to 10 parts of silica gel, 14 to 20 parts of titanium dioxide, 1.5 to 2 parts of carbon nanometer tubes, 2 to 6 partsof nanometer tin dioxide, 3 to 5 parts of nanometer zirconium oxide, 8 to 12 parts of quartz powder, 0.4 to 0.8 part of cellulose thickening agents, 0.4 to 0.7 part of dispersing agents, 0.2 to 0.6 part of anti-foaming agents, 0.3 to 0.5 part of leveling agents, 1.3 to 1.7 parts of coalescing agents and 22 to 26 parts of deionized water. The nanometer heat insulation paint can effectively solve the problem of low bonding strength of the paint on a wall body, and has the advantages of good heat insulation effect, short curing time, strong adhesive force, long service life and the like.

The invention relates to a low-smoke, halogen-free and highly flame-retardant elastic polyolefin plastic for electric wires and cables. Ethylene-octene copolymer), with a content of 20 to 50 parts by weight; EMA elastomer (ethylene-methyl acrylate copolymer), with a content of 5 to 15 parts by weight; magnesium hydroxide or aluminum hydroxide, with a content of 30 to 70 parts by weight; Nano magnesium hydroxide has a content of 20-40 parts by weight; DCP (dicumyl peroxide) has a content of 0.1-0.6 parts by weight. The hardness of the material is ≤85 Shore A; the strength is ≥9.0MPa; the elongation is ≥150%; the flame retardancy meets the requirements of UL1581 VW-1.

The invention discloses a submersible pump motor facilitating heat dissipation. The submersible pump motor comprises a motor casing, wherein an upper end cover is fixedly connected to the upper end ofthe motor casing, a lower end cover is fixedly connected to the lower end of the motor casing, a vertical rotary shaft is arranged inside the motor casing, a rotor is fixedly connected to the side wall of the rotary shaft in a sleeving mode, the upper end of the rotary shaft is rotationally connected with the upper end cover through a first rolling bearing, the lower end of the rotary shaft penetrates through the lower end cover and extends outside, the lower end of the rotary shaft is rotationally connected with the lower end cover through a second rolling bearing, a stator corresponding tothe position of the rotor is fixedly arranged on the inner side wall of the motor casing, a tank is fixedly arranged at the upper end of the outer side wall of the motor casing, a horizontal first rotary rod is arranged inside the tank, and the two ends of the first rotary rod are rotationally connected with the two side walls of the tank through third rolling bearings. According to the submersible pump motor, heat dissipation can be effectively performed on the motor through cooling liquid which flows repeatedly, and heat outside the motor can be isolated, so that influence on motor working is avoided.

The invention belongs to the field of building materials, and particularly discloses an energy-saving and environmentally-friendly thermal insulation coating and a preparation method thereof. The coating is prepared from the following components in parts by weight: 10 to 15 parts of a dispersing agent, 5 to 7.5 parts of a wetting agent, 6 to 10 parts of a defoaming agent, 2 to 4 parts of a preservative, 23 to 33 parts of high-dispersivity TiO2, 17 to 25 parts of quartz, 17 to 36 parts of heavy calcium carbonate, 62 to 90 parts of a pure acrylic emulsion, 16 to 24 parts of a film forming adjuvant, 10 to 15 parts of hollow spherical SiO2, 0 to 30 parts of an infrared reflection pigment, 14 to 24 parts of a thickener and 45 to 67.5 parts of water. By research on changes of the internal structure of the adjuvant and change of the internal microstructure of the coating, the thermal insulation coating is high in thermal insulation property, and has a self-cleaning characteristic.

The invention discloses a thermal-insulation and heat-preservation material for a special-type carriage or square cabin and a structure. The surface of the inner wall of a carriage or square bin steelplate (1) is coated with the material, and the material comprises a high-temperature-resistance thermal-insulation layer (2) and a low heat-conduction heat-preservation layer (3) from the inner surface of the carriage or square bin steel plate (1) to the inside in sequence. The high-temperature-resistance thermal-insulation layer (2) is of a multilayer stacked structure and is sequentially composed of high reflection layers a (21) and high heat resistance layers a (22) which are alternately stacked. The low heat-conduction heat-preservation layer (3) is of a multilayer stacked structure and is sequentially composed of high reflection layers b (31) and high heat resistance layers b (32) which are alternately stacked. The peripheries of the multilayer structure consisting of the high-temperature-resistance thermal-insulation layer (2) and the low heat-conduction heat-preservation layer (3) are uniformly covered with fiber cloth (4). The thermal-insulation and heat-preservation materialhas small thickness, low weight, a good thermal-insulation and heat-preservation effect and high efficiency. Meanwhile, the thermal-insulation and heat-preservation material has a good retaining and positioning effect, and is not liable to generate the phenomena such as shedding and up-turning.

The invention discloses a preparation method of a high-content carbon black master batch. According to the method, modified polystyrene reacts with modified carbon black particles, and then melting and extruding are conducted with liquid paraffin, graphite, kaolin powder and sodium dodecyl benzene sulfonate; and modified polystyrene is dissolved in N,N-dimethylformamide to react with modified carbon black particles, so that chlorine atom sites on the modified carbon black particles are subjected to cross-linking reaction with the modified polystyrene, thereby ensuring that the modified carbon black particles are stably attached to the modified polystyrene and do not fall off when the content of the carbon black is increased. The surface of the modified carbon black particle is grafted with an oxyacid structure containing phosphorus in molecules, a continuous and compact carbon layer can be formed on the surface when the carbon black master batch is combusted, heat and oxygen can be isolated, smoke and molten drops can be inhibited, and phenothiazine structures in the molecules further improve the anti-aging performance of the carbon black master batch.

The invention provides a transmitting body capable of achieving secondary acceleration. The transmitting body comprises a main transmitting body and a transmitting head. An inner cavity of the main transmitting body is internally provided with first-level power media. The transmitting head is arranged at the front end of the main transmitting body, and a heat isolation layer is arranged between the transmitting head and the main transmitting body. The transmitting head comprises a bullet head shell with an installing port, a double gold piece, a heat conduction motivating rod and a power chamber, wherein the double gold piece is arranged in an inner cavity of the bullet head shell through the installing port, and second-level power media are contained in the power chamber. The power chamber is provided with a splicing structure detachably connected with the bullet head shell. One end of the heat conduction motivating rod is connected with the second-level power media, and the other end of the heat conduction motivating rod is opposite to the double gold piece. A gap is formed between the double gold piece and the heat conduction motivating rod. The double gold piece is deformed due to heating and is connected with the heat conduction motivating rod. The problems that in the prior art, a transmitting body cannot achieve interval sub-level ignition boosting, and the stability and shooting precision of bullets are poor are solved, and the problem that users cannot change the firing range of the bullets is solved.

Disclosed herein is an improved electronic device enclosure and methods for manufacturing the same. One embodiment includes a front panel; a back panel with a patterned intrusion region to improve passive audio amplification; an electrically conductive front plate; an electrically conductive back plate with an open region configured to permit transmission of radiofrequency signals; wherein the front plate couples with the front panel, the back plate couples with the back panel, the front panel hingedly couples with the back panel, and the front plate and back plate are configured to enclose an electronic device; and the front plate is sized and dimensioned to block radiofrequency radiation from exiting the front panel of the electronic device enclosure.

The invention discloses a machine part protective device. The machine part protective device comprises an outer box, the outer side of the outer box is tightly covered with a flame-retardant layer, and the outer side of the flame-retardant layer is tightly covered with a waterproof layer. The four corners of the bottom of the waterproof layer are fixedly connected with pyramid-shaped rubber sleeves, and springs are fixedly connected to the inner wall of the outer box. The other ends of the springs are connected with an inner box in an abutting and contacting mode, and a rubber pad is fixedly connected to the top end of the inner box. The interior of the inner box is tightly covered with a first high-temperature resistance thermal insulating layer, and a drying agent is laid at the bottom of the inner wall of the first high-temperature resistance thermal insulating layer. A sponge fills between the top of the drying agent and the inner wall of the first high-temperature resistance thermal insulating layer. The machine part protective device is simple in structure, convenient to use, good in part protection effect, waterproof and moisture-proof, and flame-retardant and thermal-insulating, avoids corrosion of parts, avoids damage to the parts caused by fire, reduces economic loss, reduces vibration, avoids damage to the parts due to bumps during handling, maintains closed space, and avoids oxidation of the parts.

The invention discloses a low-smoke halogen-free and flame-retardant sheath material with high-temperature aging resistance. The ethylene-propylene insulation material comprises components in parts by mass as follows: an ethylene-vinyl acetate copolymer EVA40L-03, an ethylene-vinyl acetate copolymer EVA2803, paraffin, vinyltri(beta-methoxy ethoxy) silane, 4.4-bis(2,2-dimethylbenzyl)diphenylamine, 2-mercapto benzimidazole, flame-retardant filler, zinc borate, antimonous oxide, montmorillonite, dicumyl peroxide and triallyl isocyanurate, wherein the content of VA in the ethylene-vinyl acetate copolymer EVA40L-03 is 40% and the content of VA in the ethylene-vinyl acetate copolymer EVA2803 is 28%. According to the low-smoke halogen-free and flame-retardant sheath material, the flexibility and the high-temperature aging resistance of the sheath material are improved, and the retention rate of elongation is higher than 60% after high-temperature aging is performed at the temperature of 180 DEG C for 240 h. Meanwhile, the invention provides a preparation method of the low-smoke halogen-free and flame-retardant sheath material with the high-temperature aging resistance.

The invention discloses a fire-resistant and anti-bacterial cotton fabric. The fabric is set as a double-sided structure and comprises a fabric lining layer and a fabric surface layer, wherein the fabric lining layer is made by ramie, cotton and a Coolplus staple fiber via blending; the fabric is made by anti-flaming viscose, an anti-flaming acrylic fiber, ramie and cotton via blending; in the fabric lining layer, the specification of the ramie is 1.67 dtes * 38 mm, the specification of the cotton fiber is 1.85 dtex * 33 mm and the specification of the Coolplus staple fiber is 1.56 dtex * 38 mm; in the fabric surface layer, the specification of the anti-flaming viscose is 1.72 dtex * 36 mm and the specification of the anti-flaming acrylic fiber is 1.56 dtex * 28 mm. The invention furthermore discloses a preparation method of the fire-resistant and anti-bacterial cotton fabric. The cotton fabric is set as the double-sided structure and comprises the fabric lining layer and the fabric surface layer; the fabric lining layer undergoes antibacterial treatment in aloe extracting solution and organic germanium treatment solution; an anti-flaming thin film layer is sprayed on the surface of the fabric surface layer, so that the cotton fabric has more excellent anti-flaming and anti-bacterial properties.

An electric hair clipper ergonomically configured to improve user comfort and improve performance is disclosed. For example, the electric hair clipper can be configured to receive one or more removable weights for adjusting the total weight and balance of the clipper. In other examples, the electric hair clipper can include a hand grip and finger rests for comfort and precision. In other examples, a removable sleeve can be used with the electric hair clipper to reduce vibrations, provide isolation against heat, and provide a comfortable grip for a barber.

The invention discloses a medical endoscopy lighting device. The medical endoscopy lighting device comprises a lighting unit, a transmission pipe and a fixing unit, wherein the lighting unit further comprises a light path output end, a light path passage and an LED light source, and the light path output end, the light path passage and the LED light source are sequentially connected and connected with the fixing unit through the transmission pipe; the fixing unit further comprises a power supply box, a sucking disk and a bolt fastening structure, and the sucking disk and the bolt fastening structure are respectively mounted on two sides of the power supply box. Compared with the prior art, the medical endoscopy lighting device disclosed by the invention has the benefits that the medical endoscopy lighting device provided by the invention adopts a manner that a first light guiding part and a second light guiding part are matched, so that light is effectively transmitted to an optical fiber, and enough luminous flux is provided for medical use; a whole endoscopy lamp is simple and light in design, so that the medical endoscopy lighting device has a quite wide application prospect.