56results about How to "Improve the performance of anti-electromagnetic radiation" patented technology

The invention relates to the technical field of optical protection films, and especially relates to an electromagnetic-radiation-resistant protection film and a preparation method thereof. The preparation method comprises the following steps: step 1, preparing light-cure paint with electromagnetic radiation resistant function; step 2, coating a PET base material with the light-cured paint by using a slight-concave roller, and controlling the coating thickness of the light-cured paint to be 3-10 mu m, the diameter of the slight-concave roller to be 30-50 mm and the line screen of the slight-concave roller to be 40-400; step 3, curing the paint to obtain a film; and step 4, preparing the electromagnetic-radiation-resistant protection film. The electromagnetic-radiation-resistant protection film is good in electromagnetic-radiation-resistant effect, the technology is simple and manure and beneficial for popularization and application. When the electromagnetic-radiation-resistant protection film is used, the electromagnetic-radiation-resistant protection film can be attached to a handset or a display screen by tearing a PET protection film. Compared with electromagnetic-radiation-resistant equipment at home and abroad, such as radiation-proof clothes, electromagnetic-wave protection helmets and the like, the electromagnetic-radiation-resistant protection film is simple and convenient to use and easy to popularize.

The disclosed preparation method for ultramicro Ag+ in textile comprises: adsorbing Sn2+ on textile fiber surface to reduce the silver and realize the connection between silver and fiber; with the assistant of ultrasonic wave, dipping the treated textile into the ethanol-water solution of with dissolved AgNO3 to let silver grow on fiber surface at room temperature. This invention improves the dispersion and adhesion force of Ag+ in textile with simple process to enhance its prevention against electromagnetic radiation, thermal conduction and antibacterial property greatly.

The invention relates to an improved intelligent box-type transformer substation, and belongs to the technical field of power transmission and transformation. According to technical scheme, the improved intelligent box-type transformer substation comprises a box body and a base, wherein a high-voltage chamber, a low-voltage chamber and a transformer chamber are arranged in the box body, the box body is composed of wall plates on the periphery of the box body and a cover plate at the top end, a variable frequency self-suction type fan is installed in the position, corresponding to the transformer chamber, on the cover plate, and a temperature and humidity sensor is arranged in the transformer chamber and connected with a control unit of the variable frequency self-suction type fan. The improved intelligent box-type transformer substation has the advantages of being reasonable in structure, and good in cooling effect and working effect.

The invention discloses a synthetic fiber material and belongs to the field of composite materials. The synthetic fiber material comprises a fiber material and a radiation-proof material. The radiation-proof material contains at least one component selected from a wave-absorbing material, an amorphous alloy material and a metal nanocrystalline material. According to the invention, at least one component selected from the wave-absorbing material, the amorphous alloy material and the metal nanocrystalline material is added into the fiber material, the wave-absorbing material is used for absorbing electromagnetic wave, and the amorphous alloy material and the metal nanocrystalline material are used for shielding electromagnetic wave. Thus, the synthetic fiber material can prevent electromagnetic radiation effectively, has higher shielding effectiveness, can be used in a wider range and is safer. In addition, a fabric prepared from the synthetic fiber material has high anti-electromagnetic radiation performance as well as high heat conductivity coefficient and is smoother and cool in a sense of touch. Based on high density of the wave-absorbing material, the amorphous alloy material and the metal nanocrystalline material, the fabric has good sagging degree. Therefore, popularity with consumers is raised.

The invention provides a case cabinet which comprises side boards, a back board, a door board, a top board and a bottom board. All the boards are detachably connected. The case cabinet further comprises a separation board. The separation board is detachably arranged between the two side boards and provided with multiple cable bunching holes. An opening is formed in the bottom board. Two to five detachable baffles are arranged in the opening. Due to the fact that the separation board is provided with the cable bunching holes and the bottom board is provided with the opening and the detachable baffles, cables near the cable bunching holes can conveniently penetrate through the cable bunching holes and the opening so as to be sorted and arranged, and the purpose of the reasonable layout of the cables is achieved; meanwhile, the adaptability is improved due to the multiple cable bunching holes and the requirements for bunching the cable in different positions can be met; due to the arrangement of the multiple detachable baffles, the different conditions of the cables with the number changing from small to large can be met, the number of the detached baffles is determined according to the number of the cables, and adaptability is further improved.

The invention discloses a stretchable multi-core wire with an electromagnetic shielding layer. The stretchable multi-core wire comprises one or more elastic wire cores, a braid layer wound and wrapped on the outer side of the one or more elastic wire cores, and an elastic shielding layer wrapped on the outer side of the braid layer. The elastic shielding layer is one or more elastic shielding layers wrapping the outer side of the braid layer, and the elastic shielding layer is one or more of a metal woven mesh, a metal knitted shielding mesh, conductive silicone rubber, conductive rubber, conductive plastic, conductive cloth and conductive yarn. According to the scheme, the special structure of the elastic shielding layer and the preparation method are adopted, so that the electromagnetic radiation resistance is enhanced, the elasticity of the elastic wire is ensured, and very good practicability is achieved.

The invention discloses a production method for anti-radiation soybean fiber fabrics. Soybean fibers, cotton fibers and silver-plated fibers are used as raw materials to be woven into anti-radiation soybean fiber fabrics through plain weave. The production method comprises the steps of dyeing the soybean fibers and the cotton fibers respectively, mixing and twisting the soybean fibers and the silver-plated fibers into wefts, using the cotton fibers and the silver-plated fibers as warps, and weaving the wefts and the warps through the plain weave into the anti-radiation soybean fiber fabrics. According to the production method, the soybean fiber fabrics are produced through a yarn dyeing method, the process route is short, after treatment is absent, oxidation and corrosion of silver-plated fibers during chemical agent heat treatment can be prevented, and the soybean fiber fabrics are good in anti-radiation and anti-bacterial performances and comfortable to wear next to the skin.

The invention discloses a mattress with a health care function, and a production technology of the mattress. The mattress is formed by wrapping a mattress core with an outer packaging layer, wherein the mattress core consists of an upper mattress and a lower mattress; the surface of the lower mattress is provided with a through groove with a V-shaped cross section, and through groove is used for placing aromatic microcapsules; the upper mattress is provided with a semi-circular groove at the position corresponding to the through groove formed in the lower mattress, and the diameter of the semi-circular groove is consistent with the size of the V-shaped opening; stainless steel wires are placed in the semi-circular groove and are externally wound with fibers, and the fibers are wrapped withthin films. The production technology of the mattress comprises the following steps: (1) preparing the aromatic microcapsules and a mixture solution; (2) preparing the stainless steel wires; (3) forming the V-shaped through groove in the lower mattress; (4) forming the semi-circular groove in the upper mattress; (5) preparing the mattress core; (6) preparing the outer packaging layer. The mattress is provided with the aromatic microcapsules, yarns treated by means of the mixture solution, and the stainless steel wires, thus having effects of nutrition and skin care and a function of preventing electromagnetic radiation while helping sleep.

The invention discloses an ultra-shielding electric wire and cable, comprising a conductive wire core, a plurality of insulating layers and a plurality of metal braid layers. The metal braid layers comprise a first metal braid layer and a second metal braid layer from inside out in sequence. A first isolating layer is disposed between the first metal braid layer and the second metal braid layer. Two adjacent layers of the first metal braid layer, the first isolating layer, and the second metal braid layer are isolated by insulating layers. In the cable, the multilayer metal braid layers which are disposed at interval greatly improve electromagnetic radiation shielding capacity of the wire and cable, and the metal braid layers are woven tightly by silver-plated copper wires which is processed by stannizing, thereby further improving shielding performance. The isolating layers are disposed among the plurality of metal braid layers, thereby further improving shielding performance. Arrangement form of the plurality of insulating layers improves strength of the wire and cable and high temperature resistance performance.

A health-care chewing gum for improving the resistance of human body to electromagnetic radiation is prepared from extract of spirulina, astragalus root or siberian solomonseal rhizome, white sugar, assistant and flavouring.

The invention discloses a soft skin care fabric and a preparation method thereof, and relates to the technical field of textile materials. When the soft skin care fabric is prepared, firstly, hydroxymethyl triethoxy silane, dimethyl dimethoxy silane and methyl vinyl dimethoxy silane react and then react with 4-hydroxythiophenol to prepare sulfydryl vinyl polysiloxane, ferric chloride, ferrous chloride and tetrabutyl titanate react to prepare the soft skin care fabric. The preparation method comprises the following steps: carrying out a reaction on poly (1, 3-butadiene), TPU polyurethane, polyethylene terephthalate and modified composite nanoparticles in sequence to obtain modified composite nanoparticles, spinning poly (1, 3-butadiene), TPU polyurethane, polyethylene terephthalate and the modified composite nanoparticles, and carrying out a spinning process to obtain the high-temperature-resistant polyurethane composite material. Then reacting with modified vinyl-terminated polydimethylsiloxane modified by allyldimethoxysilane and triethoxysilane, and tetraethoxysilane, and weaving to obtain the soft skin care fabric. The soft skin-care fabric prepared by the invention has excellent softness, moisture retention and electromagnetic radiation resistance.

The invention discloses a method for processing copper fiber, bamboo fiber and cotton fiber blended yarns. The method includes bamboo fiber strip processing working procedures, combed cotton silver processing working procedures and blending processing working procedures. The method is characterized in that the copper fiber, bamboo fiber and cotton fiber blended yarns comprise, by weight, 25-49% of bamboo fibbers, 20-39% of copper fibers and the balance cotton fibers. According to the scheme, the method has the advantages that the copper fiber, bamboo fiber and cotton fiber blended yarns on the basis of integration of the copper fibers, the cotton fibers and polyester fibers are extremely high in comfort and have certain strength, antistatic capacity, electromagnetic radiation resistance and sterilization characteristics.

The invention relates to the field of preparation methods of special foam materials, in particular to electromagnetic shielding polyurethane foam and a preparation method thereof. The polyurethane foam comprises a polyurethane foam base layer, an adhesion enhancing layer, an electromagnetic shielding layer and a wear-resistant layer from inside to outside in sequence. The electromagnetic shieldinglayer is formed by curing electromagnetic shielding paint on the adhesion enhancing layer, and the wear-resistant layer is prepared from wear-resistant paint subjected to ultraviolet-curing cured onthe surface of the electromagnetic shielding layer. By means of the electromagnetic shielding polyurethane foam and the preparation method thereof, the problems in the prior art that the in the priorart, foam plastic is low in electromagnetic shielding efficiency, poor in anti-electromagnetic radiation capability and high in cost are solved, therefore, the electromagnetic shielding polyurethane foam and the preparation method thereof have the following beneficial effects that electromagnetic radiation can be effectively shielded; the cost is low, and the preparation method is simple; charge accumulation is prevented, and formation of static is hinderedavoided.

The invention relates to a special foam material, in particular to a polyurethane foam for preventing electromagnetic radiation. The foam comprises the following components in parts by weight: 100 parts of siloxane modified diethylene glycol phthalic anhydride polymer, 80-100 parts of isocyanate, 10-25 parts of nanometer lead tungstate silica gel, 25-35 parts of powder graphene microsheet, 5-15 parts of carboxymethyl starch, 3-8 parts of melamine, 5-10 parts of ammonium polyphosphate, 1-3 parts of triethylenediamine, 0.5-3 parts of water and 0.05-0.25 part of dibutyltindilaurate. The inventionsolves the problems of low electromagnetic shielding efficiency, poor anti-electromagnetic radiation ability and high cost of foamed plastics in the prior art and has features of (1) good anti-electromagnetic radiation performance; (2) good mechanical properties and machinability; (3) low cost and simple processing method.

The invention discloses an electric automobile rapid charging cable and preparation method thereof, solving the technical problem that a current electric vehicle charging cable in the fast charge generates the electromagnetic radiation to interfere charging control. The charging cable includes power supply lines, a ground wire, signal transmission control lines and auxiliary power supply lines that respectively comprise copper conductors and insulating layers coating the outside of the copper conductors, and the signal transmission control lines and the ground wire are adjacent. Each signal transmission control line further includes nylon wire ropes filling the corresponding insulating layer, successively winding plastic-aluminum composite belt layers, a braiding layer wrapping the plastic-aluminum composite belt layers, a conducting resin layer coating the braiding layer, and an inner sheath extruding on the conducting resin layer. The charging cable further includes a PP rope filling a line group formed by the power supply lines, the ground wire, the auxiliary power supply lines and the signal transmission controls, successively lapping wrapping layers, and an outer sheath compacting on the wrapping layer. The electric automobile rapid charging cable can carry out anti-electromagnetic radiation while rapidly charging an electric automobile.

The invention discloses a waterproof and radiation-proof fabric. The waterproof and radiation-proof fabric is prepared from the following components in parts by weight of 10-15 parts of polythiophene with an alcohol amine group on a side chain, 45-65 parts of 2,3,5,6- tetrafluoro-terephthalyl alcohol/isocyanate-terminated polyurethane prepolymer condensation polymer, 3-5 parts of isocyanatopropyltriethoxysilane modified fluorinated graphene and 1-3 parts of triethylamine. The invention further provides a preparation method of the waterproof and radiation-proof fabric. The waterproof and radiation-proof fabric disclosed by the invention is remarkable in waterproof and radiation-proof effect, good in comprehensive performance and good in performance stability, air permeability, durability and wearing comfort.

The present invention relates to shielding materials and a manufacturing method thereof. The objective of the invention is to provide improvement of environmental conductive copper and aluminum foil shielding materials for a communication cable and a manufacturing method thereof. The shielding materials have a higher isolation performance to meet a mobile communication shielding requirement. The manufacturing method is good in product flexibility, simple in preparation process and high in production efficiency. The environmental conductive copper and aluminum foil shielding materials for the communication cable comprise two aluminum foil layers. The environmental conductive copper and aluminum foil shielding materials further comprise a copper foil layer. PET layers glued and connected byglue are arranged between the two aluminum foil layers and between the copper foil layer and the aluminum foil layers, and the other external layer of the copper foil layer is an EMAA layer glued by glue.

The invention relates to the technical field of touch screen, and especially relates to a low radiation cover glass for touch screen and a preparation method thereof. The cover glass comprises an ultrathin glass sheet. A wave absorbing composite masking liquid is sprayed on the ultrathin glass sheet to form a wave absorbing film after curing. The main solvent of the wave absorbing composite masking liquid is ethanol. 1.5 to 3.5 wt% of wave absorbing composite powder and 2 to 5 wt% of bonding agent are dispersed in ethanol. The wave absorbing composite powder is an ATP-Fe3O4-RGO-Ni particle, which is prepared by the following steps: wrapping Fe3O4 by nano attapulgite to modify Fe3O4, and then combining modified Fe3O4 with nickel loaded graphene. The preparation method has the advantages ofsimple technology and convenient operation. The prepared cover glass has a stable performance and a strong wave absorbing property, can effectively prevent electromagnetic radiation for a long term, and can reduce the harmful effect of electromagnetic radiation generated by toughing a touch screen to human body.

The invention relates to the field of special foam materials, in particular to electromagnetic shielding polystyrene foam. By means of the electromagnetic shielding polystyrene foam, the problems thatin the prior art that, foam plastic is low in electromagnetic shielding efficiency, poor in anti-electromagnetic radiation capability and high in cost are solved. The foam is prepared from the following components in parts by weight: 100 parts of polystyrene master batch, 10-25 parts of nanometer lead tungstate silica gel, 15-25 parts of powdery graphene nanoplatelets, 5-15 parts of reduced ironpowder, 5-15 parts of silane modified carboxymethyl starch, 2-10 parts of n-pentane, 3-10 parts of melamine, 1-10 parts of ammonium polyphosphate and 0.25-0.85 part of dibutyltin dilaurate. After thecomponents are fully mixed, according to a conventional scheme, a mixture is foamed to obtain the electromagnetic shielding polystyrene foam; the electromagnetic shielding polystyrene foam has the advantages that the electromagnetic shielding performance is good; the raw materials are simple and cheap; the electromagnetic shielding polystyrene foam has the characteristic of preventing charge accumulation, so that static is effectively prevented; a flame retarding effect is excellent.