79results about How to "Has an isolation effect" patented technology

The invention provides an oily solid releasing agent which is prepared from the following components in parts by weight: 80-85 parts of base material, 0.8-1.2 parts of emulsifier, 5-10 parts of film-forming assistant, 5-15 parts of additive, 5-15 parts of moisture absorber and 1-5 parts of antioxidant. The base material contains animal oil, vegetable oil, mineral oil and a soaping agent. The additive is a compounded additive containing high-carbon hydrocarbon, alcohol and alkali, wherein the high-carbon hydrocarbon is paraffin; the additive accounts for 5% of the base material. The invention also relates to a preparation method of the releasing agent.

The invention relates to an environment control system which comprises an air purification device, a controllable gas delivery device and an environment regulation device. The air purification device is disposed inside a building. The controllable gas delivery device and the environment regulation device are disposed inside the air purification device. Compared with the prior art, the environment control system creates a 'house-in-house' environment beneficial to human physiological and mental health to achieve health caring. The indoor environment created by the environment control system includes factors such as temperature, humidity, cleanliness, freshness, oxygen concentration, anion concentration, luminance, air velocity, air uniformity, noise, color, music, fragrance, air pressure and electromagnetic wave, and accordingly the problems of indoor air pollution and low indoor air quality are solved substantially. The environment control system cares human health.

The invention belongs to the technical field of preparation of insulators for the construction of asphalt pavement road rollers and relates to an insulator for the low-temperature construction of road rollers and a method for preparing the same. The insulator is mainly prepared by mixing silicone oil, compound emulsifier, glycerin, pH regulator, preserving agent and water. The insulator has the advantages of high chemical stability, high high-low temperature resistance, no corrosion to steel wheels, small amount of coating, lasting insulating effect, environment friendliness and the like. By using the insulator, the asphalt mixture pavement is guaranteed to be constructed at the ultralow temperature (15 DEG C below zero), so that the working season is greatly prolonged; and during normal-temperature construction, by using the insulator, the mixing temperature of the asphalt mixture is reduced to 15 to 20 DEG C under the condition of unchanging the compaction degree and the emitted greenhouse gases are reduced in the mixing process and the environment-friendly and energy saving requirements are met.

The invention provides a bidirectional tri-path turn-on high-voltage ESD (Electro-Static Discharge) protective device which can be used in an on-chip IC (Integrated Circuit) high-voltage ESD protective circuit. The bidirectional tri-path turn-on high-voltage ESD protective device comprises a P minus substrate, an N plus buried layer, a left N-type epitaxy, a right N-type epitaxy, a drifting area, a high-voltage P trap, a drain region, a source region, a polysilicon gate, a positive pole contact area and a negative pole contact area, wherein the drifting area, the high-voltage P trap, the drain region, the source region and the polysilicon gate form an NLDMOS (laterally diffused metal oxide semiconductor) structure, and the positive pole contact area, the N plus buried layer, the high-voltage P trap and the source region form a positive SCR (semiconductor control rectifier)structure, so that two high-voltage ESD current discharge paths are formed to improve secondary striking current of the device and reduce the turn-on resistance and trigger voltage; and the negative pole contact area, the left N-type epitaxy, the high-voltage P trap, the N plus buried layer and the drain region form a reverse SCR structure to form a reverse high-voltage ESD current discharge path. The current paths of the two SCR structures are longer, so that the maintaining voltage of the device can be improved, bidirectional discharge of ESD current can be realized, and the device has bidirectional ESD protection function.

The invention adopts a direct coagulation method for preparation of a high performance butadiene-styrene-isoprene powder polymer. The method comprises the following steps: dispersion of a carbon nanotube: a step of adding the carbon nanotube and water into a high-speed disperser and carrying out stirring to allow the carbon nanotube to be uniformly dispersed; preparation of graft latex: a step of successively adding water, styrene-butadiene latex, an emulsifier and a molecular weight regulator into a polymerization kettle, carrying out nitrogen displacement, adding isoprene, carrying out stirring and heating, adding an initiator and carrying out polymerization to prepare the graft latex; and coagulation for formation of powder: a step of successively adding the graft latex, water and the carbon nanotube into a coagulation kettle, carrying out stirring and heating, adding a release agent, a flocculating agent and a coagulating agent and carrying out curing, washing, dehydration and drying to obtain the powder polymer. The prepared powder polymer has the following performances: a powder particle size of 0.5 to 0.8 mm; isoprene content in PSBIR of 20 to 40%; Mooney viscosity ML(1+4)<100 DEG C> of 50 to 70; 300% stress at definite elongation of 18 to 25 MPa; tensile strength of no less than 27.0 MPa; elongation at break of no less than 560%; antistatic resistance of 106 to 109 omega; and electrization voltage of less than 100V.

A foaming wall / roof sandwich layer of vegetable chip reinforced cement at normal temperature and its production are disclosed. The raw materials consist of vegetable chip 6-20 wt%, cement 46-62 wt%, gypsum powder 1.0-2.5 wt% with fineness 40-80 meshes, CaO 10-15 wt%, calcium chloride 0-3 wt%, foaming pearlite 10-14 wt%, water glass 4.5-6 wt%, sodium fluoro silicate 0.8-1.2 wt%, aluminum powder or degreased aluminum powder or aluminum paste 0.15-0.35 wt%. Cavity filling rate reaches above 90%, it's firm, has better strength and rigidity, excellent thermal-insulating performance and various raw resources and less consumption.

A preparation method of a powdered acrylonitrile-butadiene rubber with high performance comprises steps of: dispersing of carbon nanotubes: adding carbon nanotubes and water in a high-speed disperser, and stirring to evenly disperse the carbon nanotubes; preparation of a rapid polymerization latex: adding water, acrylonitrile and an emulsifier into a polymerization kettle, after confirmation of no leakage, adding butadiene, a crosslinking agent, an initiator and a molecular weight regulator for polymerization; and when the conversion rate reaches a certain level, adding a terminator to obtain a fast polymerization acrylonitrile-butadiene latex; and condensation into a powder: adding the acrylonitrile-butadiene latex, water, carbon nanotubes, a separant, a flocculant and a coagulant into a coagulation tank; curing, washing, dehydrating and drying to obtain the powdered acrylonitrile-butadiene rubber. The prepared acrylonitrile-butadiene rubber slurry has the following properties: pH of 7-10, Mooney viscosity of ML (1+4) 100 DEG C 60-110, structure gel of 75%-85%, and acrylonitrile-butadiene rubber mechanical stability of less than 1.0%; and the powdered acrylonitrile-butadiene rubber has the following properties: powder particle size of 0.6-1.0 mm, acrylonitrile content of 40%-55%, ash content no more than 1.0, volatile matter no more than 1.0, and powdered ratio no less than 95%.

The invention discloses an ultraviolet-resistant cable material for outdoor appliances, which is prepared from the following raw materials in parts by weight: 89-91 parts of high-density polyethylene, 15-17 parts of decabromodiphenyl oxide, 7-9 parts of antimony trioxide, 2-3 parts of metallocene polyethylene, 2-3 parts of nano magnesium hydroxide, 4-5 parts of cyclohexane, 0.2-0.3 part of gamma-aminopropyltriethoxy silane, 1-1.5 parts of polyethylene wax, 12-14 parts of nano titanium dioxide, 0.3-0.4 part of ultraviolet absorbent UV-P, 0.8-1 part of methyltriethoxy silane, 9-11 parts of thermoplastic acrylic resin and 0.4-0.5 part of Peregal O. Under the synergistic actions of the nano titanium dioxide and ultraviolet absorbent UV-P, the ultraviolet resistance of the cable is greatly enhanced. The prepared cable material has the advantages of crack resistance and high durability, prolongs the service life of the cable, satisfies the requirements of different working environments for the cable, and widens the application range of the cable.

The invention discloses an ink-receptive layer coating solution for high-glossiness water-resistant photographic paper. The ink-receptive layer coating solution is composed of the following components in parts by weight: 50-70 parts of water, 3-7 parts of color fixative, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of whitener, 5-10 parts of polyvinyl alcohol solution (15%), 12-18 parts of microporous silicon dioxide and 10-15 parts of polymer emulsion. The preparation method comprises the following steps: respectively adding the color fixative, defoaming agent, whitener and polyvinyl alcohol solution into the water according to the formula technique proportion, stirring uniformly, adding the silicon dioxide, stirring at high speed for 30-90 minutes, adding a polymer emulsion, stirring at high speed for 20-60 minutes, and filtering to form the ink-receptive layer coating solution for high-glossiness water-resistant photographic paper. The ink-receptive layer coating solution adopts the microporous silicon dioxide as the ink-receptive medium, thereby enhancing the ink-receptive drying rate and printing resolution of the product.

The invention discloses a paste water-based isolation agent, a preparation method and an application method thereof thereof. The paste water-based isolation agent comprises the following components by mass: 3-5 parts of an inorganic powder additive, 0.1-1.0 part of an anionic surfactant, 0.5-5.5 parts of a nonionic surfactant, 5-10 parts of a thixotropic agent, 0.2-2.0 parts of a thickener, 0.1-0.5 part of a defoaming agent, and 60-100 parts of deionized water. The preparation method consists of: mixing water with the surfactants, conducting stirring dissolving, adding the inorganic powder additive, and adding the defoaming agent dropwise, adding the thixotropic agent and thickener in batches, stirring the materials fully, and performing grinding to a homogeneous phase, thus obtaining the isolation agent. And the application method includes: during use, preparing the isolation agent into a water solution according to a mass ratio of 1:3-15, adding the water solution into a water cooling groove of a rubber slice to realize isolation agent coating at the same time of water cooling, and then carrying out rod hanging drying and stacking. The paste water-based isolation agent provided by the invention has the advantages of easy water dissolution, no toxicity, no smell, simple process and low cost, and almost has no effect on the subsequent processing performance of rubber.

The invention discloses a brushless motor controller capable of self-adapting 110V and 220V voltages. The brushless motor controller comprises a microprocessor, a power drive module, a grid voltage detection module, a Hall signal acquisition module and a power supply module. The power supply module is used for supplying power to every circuit, and is composed of a rectification filter circuit, a switch power supply and a voltage stabilizing circuit connected in series. The grid voltage detection module is used for detecting the size of alternating current supply voltage and outputting data to the microprocessor, the Hall signal acquisition module is used for sending the operating data of the brushless motor to the microprocessor, and the microprocessor is used for outputting a control signal to a power drive module to drive the brushless motor to operate. The brushless motor controller adopts a design of electromagnetic compatibility to achieve the effects of anti-interference and isolation.

The invention discloses a flexible water-resistant polyethylene cable material which is prepared from the following raw materials in parts by weight: 89-92 parts of high-density polyethylene, 9-11 parts of isotactic polypropylene, 15-17 parts of decabromodiphenyl oxide, 7-9 parts of antimony trioxide, 2-3 parts of metallocene polyethylene, 2-3 parts of nano magnesium hydroxide, 4-5 parts of cyclohexane, 0.2-0.3 part of gamma-aminopropyltriethoxy silane, 5-7 parts of vapor-phase silica white, 6-8 parts of cis-1,4-polybutadiene rubber, 2-3 parts of epoxy soybean oil, 3-4 parts of dimethyl silicone oil and 8-10 parts of silicon carbide. The base material has favorable compatibility with the filler, and can enhance the toughness, strength, aging resistance and heat resistance of the cable material, so that the cable is easy to mount and has favorable cut-through resistance. The silicon carbide and other components are added to enhance the dispersity and reinforcing property of the filler. By adding the water-resistant component, the product has the advantages of excellent water resistance, favorable flexibility and favorable bending resistance.

The invention discloses an isolated human body impedance detection circuit and a detection method thereof. The isolated human body impedance detection circuit comprises a pulse generator, a data processing unit, a data display unit, one or more treatment electrodes, and one channel or two impedance acquisition units. The output end of the pulse generator is connected to the input end of the treatment electrode, an acquisition input of the impedance acquisition unit is also respectively connected to the output of the treatment electrode, and the acquisition output of the impedance acquisition unit is connected to the input of the data processing unit. The invention also discloses a detection method, which is characterized in that a voltage trigger signal and a current trigger signal are obtained through one or more voltage detection electrodes and detection points where the current detection electrode contacts the human body; the voltage trigger signal and the current trigger signal arerespectively pre-processed, and then sent to the data processing unit for calculation. The isolated human body impedance detection circuit can perform human body impedance detection, guarantees the effect of electroporation, can achieves the effect of monitoring ablation in real time, and reduces the volume and weight of the detection equipment circuit.

The invention relates to a car charger and a control method thereof. The car charger comprises a controller, an alternating-current / direct-current transformer and a two-way direct-current transformer,which are separately connected to the controller, and a car battery which is connected to the two-way direct-current transformer, wherein the controller is used for obtaining first voltage control parameters according to first preset voltage and first feedback voltage output on the alternating-current / direct-current transformer while the alternating-current / direct-current transformer is connectedto an alternating-current source, stabilizing the current output voltage value as first preset voltage by controlling the alternating-current / direct-current transformer according to the first voltagecontrol parameters, and charging the car battery through control over the two-way direct-current transformer; and the controller is further used for obtaining second voltage control parameters according to second preset voltage and second feedback voltage output on the two-way direct-current transformer while the alternating-current / direct-current transformer is connected to the load, and stabilizing current output voltage value as second preset voltage by controlling the two-way direct-current transformer according to the second voltage control parameters, and charging the load by controlling the alternating-current / direct-current transformer.

The invention discloses a novel high-temperature-resistant low-smoke flame-retardant composite cable material. The novel high-temperature-resistant low-smoke flame-retardant composite cable material is prepared from the following raw materials in parts by weight: 90-92 parts of high density polyethylene, 15-17 parts of deca-brominated diphenyl ether, 7-9 parts of antimonous oxide, 2-3 parts of metallocene polyethylene, 2-3 parts of nano magnesium hydroxide, 4-5 parts of cyclohexane, 0.2-0.3 part of gamma-aminopropyl triethoxy silane, 6-8 parts of epoxy resin glue, 10-12 parts of poly 4-methyl-1-pentene, 7-9 parts of silicon carbide, 3-5 parts of clay, 2-3 parts of tribasic lead sulphate, 2-3 parts of Tween 80, 5-6 parts of carbon fibers and a right amount of water. The novel high-temperature-resistant low-smoke flame-retardant composite cable material has the advantages that after a series of processing steps are carried out, the carbon fibers, clay and epoxy resin glue are compatible and then are added into the base material high density polyethylene, so that strength of the product can be improved, and weight is light; the epoxy resin glue is added and compounded with poly 4-methyl-1-pentene, so that temperature class can be improved; and the novel high-temperature-resistant low-smoke flame-retardant composite cable material is resistant to high temperature and breakdown, low-smoke and flame-retardant and can be used for manufacturing an automotive cable and the like.

The invention discloses a rare-earth salt plating assistant solvent comprising the following components in molar ratio: 5-25% of ammonium chloride, 3-20% of zinc oxide, 0.5-2.0% of KBX and the balance of water. Hot dipping treatment is carried out on a base metal, so that the mechanical performance of the base metal can be enhanced, the oxidation resistance of the base metal is enhanced, and the base metal is more beautiful.

The invention discloses a pressure storage type compressed gas foam extinguishing system which comprises a pressure liquid storage tank and a foam generator. The pressure liquid storage tank is filled with foam extinguishing agent mixed liquid and compressed gas. The foam generator is arranged in the pressure liquid storage tank and the foam generator is located above the foam extinguishing agent mixed liquid. A gas inflow hole, a liquid inlet and a turbulator are arranged on the foam generator. The liquid inlet is communicated with a liquid suction pipe arranged at the lower end of the foam generator. The bottom of the liquid suction pipe is located on the lower portion of the pressure liquid storage tank. A foam outlet pipe connected with the foam generator is arranged at the top end of the pressure liquid storage tank. A foam delivery pipe is arranged on one side of the pressure liquid storage tank and communicated with the foam outlet pipe. A foam gun is arranged at the tail end of the foam delivery pipe. The pressure storage type compressed gas foam extinguishing system can generate even, exquisite and stable kinetic energy foam without sucking air from the outside and is high in extinguishing speed, wide in covering range and large in jet distance.

The invention discloses a preparation method of heavy calcium carbonate for a high-activation-degree silicone adhesive. The preparation method sequentially comprises the steps of ore storage, cleaning, mineral separation, crushing and homogenizing, grinding, grading, powder collection, quality inspection I, activation, cooling and quality inspection II. The preparation method disclosed by the invention is simple and easy to implement, the prepared calcium carbonate powder has good dispersity, extremely high activation degree, relatively high whiteness and extremely low oil absorption value, and the thixotropy and tensile strength of a silicone adhesive can be effectively improved.

The invention discloses a method for unidirectional transmission of data, which comprises the following steps: a sending end loads the data to be transmitted into a light wave and emits the data to betransmitted, and propagates the same to a receiving end; an isolation device arranged on the optical path between the transmitting end and the receiving end passes the light wave propagated from thetransmitting end to the receiving end, the isolation device is not powered on, and the light wave propagated from the receiving end to the transmitting end can be prevented from passing through; and the receiving end receives the propagated light wave and demodulates the data. An optical path between the sending end and the receiving end is provided with the isolation device, the isolation deviceis capable of passing a light wave propagating from the transmitting end to the receiving end, while preventing the light wave propagated from the receiving end to the transmitting end from passing through, thus ensuring the unidirectional transmission of data between the transmitting end and the receiving end, and the isolation device is not powered on, has isolation function to the electric signal, and can avoid the situation of reverse breakdown caused by the voltage overload.

The invention discloses a package of a single transposition winding. The package of the single transposition winding comprises a spacing strip which is of a belt shaped structure and arranged at the bottom part of the transposition winding, wherein the spacing strip is arranged along the length direction of the transposition winding; net wrapping belts are arranged around the transposition winding and the spacing strip in a manner of obliquely coiling and wrapping the peripheries of the transposition winding and the spacing strip; a protecting belt is arranged at the outer parts of the net wrapping belts in a manner of obliquely coiling and wrapping the peripheries of the net wrapping belts; a tearing line is arranged between the net wrapping belts and the protecting belt along the length direction of the transposition winding; one head of the tearing line is arranged at the outer part of the package. Compared with the prior art, the package of the single transposition winding has the advantages that the transposition winding is packed through the spacing strip, the net wrapping belts and the protecting belt, so that the transposition winding is insulated, radiating, damp-proof and durable, and as a result, the transposition winding can be coiled with each other and stored for a long time; in addition, the transposition winding is conveniently transported in outdoor, and moreover, the potential risk in the use of the transposition winding can be avoided.

The invention discloses a water-tree-retardant breakdown-resistant flame-retardant power cable material which is prepared from the following raw materials in parts by weight: 84-86 parts of high-density polyethylene, 15-17 parts of decabromodiphenyl oxide, 7-9 parts of antimony trioxide, 2-3 parts of metallocene polyethylene, 2-3 parts of nano magnesium hydroxide, 4-5 parts of cyclohexane, 0.2-0.3 part of gamma-aminopropyltriethoxy silane, 3-4 parts of calcium stearate, 4-6 parts of montmorillonite, 0.1-0.2 part of triallyl isocyanurate, 8-10 parts of zeolite molecular sieve, 1.2-1.5 parts of isobutenyltriethoxy silane, 13-15 parts of low-density polyethylene and 2-3 parts of microcrystalline wax. The zeolite molecular sieve and other adsorbing particles are utilized to restrict the movement of moisture on the high-density polyethylene interface, thereby effectively inhibiting the initiation and growth of the water tree. The power cable material has the advantages of flame retardancy, breakdown resistance, favorable corrosion resistance and favorable aging resistance, obviously prolongs the service life of the cable, and is suitable to be used as a cable in a moist environment.

The invention discloses a voltage control circuit. The voltage control circuit comprises a boost circuit module, a capacitor energy storage circuit module, a first relay module and a second relay module; the boost circuit module is connected with a direct-current power supply; the capacitor energy storage circuit module is connected with the boost circuit module in series; the first relay module can be connected with the capacitor energy storage circuit module and the boost circuit module, so that the capacitor energy storage circuit module is enabled to be in a charging state, or, the first relay module can be connected with the capacitor energy storage circuit module and the second relay module, so that the capacitor energy storage circuit module is enabled to be in a discharge state; and the second relay module is connected with a load and at least can enable the capacitor energy storage circuit module to output forward or reverse current to the load. The invention further providesan electric control permanent magnet controller adopting the voltage control circuit. The electric control permanent magnet controller has the advantages of small size, accurate control and the like.

The invention relates to an installation-facilitating intelligent electric meter comprising a shell, an installation mechanism and a central control mechanism. The installation mechanism comprises a fixing plate and installation supports. Each installation component comprises a first transmission rod, a resetting unit, a guide unit, a transmission gear, a second transmission rod and a limiting block. A wireless communication module comprises a wireless communication circuit which comprises an integrated circuit. According to the installation-facilitating intelligent electric meter, reliable and flexible installation and connection of the shell and the fixing plate can be realized through the installation components so that the installation flexibility of the electric meter can be enhanced and the practicality can be enhanced; besides, the isolation effect of wireless communication can be realized by using the internal isolation effect of the integrated circuit in the wireless communication circuit so that the safety of the intelligent electric meter can be enhanced.

The invention provides a high-signal to noise ratio (SNR) optical fiber amplifier. In the high-SNR optical fiber amplifier, an optical fiber amplification module, a first polarization controller, an optical fiber polarizer, a second polarization controller, a non-linear polarization rotating unit, a third polarization controller, a polarization beam splitter and an optical fiber isolator are connected with one another sequentially. The high-SNR optical fiber amplifier can amplify an optical pulse signal and can effectively inhibit continuous amplified spontaneous emission noise at the same time to output the optical pulse signal with very high contrast ratio. The structure of combining the polarizer and the polarization beam splitter is adopted, isolation effect on backward opposite laser is achieved and the optical fiber amplifier has high stability. The high-SNR optical fiber amplifier adopts an all-optical-fiber structure of the optical fiber polarization controllers, the optical fiber polarizer and the optical fiber polarization beam splitter, and has a simple structure, high stability and low cost.

The invention discloses a formula of a road isolation material. The formula comprises the following raw materials in parts by weight: 200-1000 parts of cement, 1000-2000 parts of pebbles, 10-100 partsof a functional material, 1-10 parts of a PP (Polypropylene) fiber, 1-10 parts of a wood fiber, 2-20 parts of polymer gum powder, 2-20 parts of an additive, 100-500 parts of a functional bacterial flora, wherein the mass ratio of water to gum is 0.1:0.6; the additive comprises one or a combination of more of a water reducing agent, an adhesive, a stabilizer and a defoaming agent; the functional material is one or a combination of more of polyphenyl granules, ceramsite, kieselguhr, activated carbon, vermiculite and pumice stone; the functional bacterial flora is one or a combination of more ofbacilli, hydrocarbon pollution degradation bacterial florae and grease degradation bacterial florae. By adopting the formula of the road isolation material, a formula of a conventional porous material is improved, and then the formula is good in functionality and good in adaptability when being applied to road isolation.

The invention discloses mortar used for quick leaking stoppage of nuclear powder station accident cooling water pipe leakage. The mortar is prepared from, by weight, 10-20 parts of cement, 6-10 parts of mineral powder, 30-40 parts of river sand, 8-10 parts of dispersed emulsion powder, 6-10 parts of polyphenyl ether, 8-12 parts of nanometer lead particles, 8-12 parts of polyvinylidene fluoride, 10-15 parts of graphite particles, 10-13 parts of super absorbent resin, 8-12 parts of charcoal particles and 6-10 parts of silicate. The invention aims at providing the mortar used for quick leaking stoppage of nuclear powder station accident cooling water pipe leakage. According to the mortar used for quick leaking stoppage of nuclear powder station accident cooling water pipe leakage, the mortar is good in flexibility, strong in adhesive force, and capable of quickly swelling and solidifying after the mortar is mixed with water so that quick cramming of the nuclear power station cooling water pipe can be achieved, and the mortar has an isolation function on three rays of alpha, beta and gamma of nuclear radiation after the nuclear powder station cooling water pipe is crammed so that further spreading of a nuclear leakage accident can be prevented.