57 results about "Antistatic Materials" patented technology

The invention discloses a colored permanent antistatic PETG material applied to 3D printing. The colored permanent antistatic PETG material comprises the following components in parts by weight: 50-80 parts of a PETG material, 5-20 parts of a PC material, 10-30 parts of a permanent antistatic agent, 5-15 parts of a reinforcing agent, 1-5 parts of a lubricant, 1-5 parts of a compatilizer, 0.1-0.5 part of a coupling agent, 0.1-0.4 part of a hindered phenol antioxidant, 0.1-0.4 part of a phosphite antioxidant, 0.1-0.4 part of a plasticizer and 0.1-0.4 part of toner. The composite material has the beneficial effects that a PETG / PC alloy modification mode is used, so that the heat resistance, the mechanical property and the interlayer adhesive force of the PETG composite material are improved; the high-molecular permanent antistatic agent is used, so that the antistatic capacity of the material is improved under the condition that the color of PETG is not influenced, and the problem that a conventional carbon nanotube / conductive carbon black modified antistatic PETG material cannot be subjected to color matching is solved.

The invention belongs to the technical field of novel antistatic materials, and discloses an antistatic polyolefin composite material and a preparation method thereof, and an antistatic film and application thereof. The antistatic agent added in the invention is completely independent of environmental humidity, the antistatic performance of the composite material is kept consistent in a wide humidity range (12-90% RH), the problem that the traditional surfactant antistatic agent is easy to migrate and lose efficacy is solved, the migration rate of the antistatic agent in a polyolefin matrix is extremely low, and the antistatic performance of the composite material is greatly improved. The antistatic performance of the composite material is not attenuated in the whole life cycle, the service life of the composite material is the same as that of a functional film, the composite material does not need to be maintained, and continuous and stable terminal protection is provided.

The invention relates to the technical field of polymer composite materials, and discloses a siloxane-based heat-conducting antistatic material and a preparation method thereof. Comprising the following components in parts by weight: 70-80 parts by weight of bisphenol A epoxy resin E51, 3-5 parts by weight of epoxy-terminated diphenyl trisiloxane, 15-20 parts by weight of a methylhexahydrophthalic anhydride curing agent, 3-6 parts by weight of an antistatic agent, 5-8 parts by weight of polyaniline-modified graphene oxide, 0.4-0.6 part by weight of citric acid, 0.1-0.2 part by weight of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 0.1-0.2 part by weight of an antioxidant, 0.1-0.2 part by weight of a coupling agent, 0.1-0.2 part by weight of a coupling agent, and 0.1-0.2 part by weight of a coupling agent. The invention discloses a 2, 6-tri (dimethylaminomethyl) phenol accelerant. The siloxane-based heat-conducting anti-static material disclosed by the invention has relatively good heat-conducting, anti-static and stretching effects.

The invention relates to the technical field of antistatic materials, and relates to an antistatic styrene copolymer for producing a carrier tape and a preparation method thereof, and the antistatic styrene copolymer comprises the following components by mass: 45%-60% of HIPS, 6%-10% of HIPS / PPO alloy, 15%-25% of conductive carbon black, 5%-15% of a compatilizer, 6%-15% of a flexibilizer, 2%-5% of a carbon black dispersant, 0.3%-0.8% of an antioxidant, and 0.5%-1% of a lubricant. The carbon black dispersing agent comprises a coupling agent and medium-chain and long-chain aliphatic tertiary amine. Through the collaborative design of the tertiary amine-coupling agent binary carbon black dispersing agent and the HIPS / PPO heat-resistant alloy, the styrene system filled with 15%-25% high carbon black has no crystal point, no carbon deposit, no melting in 225 DEG C heat sealing and no black falling in tape tearing, and the industrial-grade requirement of continuous high-speed production of carrier tapes is met.

This invention provides a permanent antistatic PC material preparation system, comprising a mixing unit, an extrusion granulation unit, and an injection molding unit connected in sequence. The injection molding unit includes a barrel, a screw assembly rotatably disposed within the barrel, and an ERT sensor disposed at a nozzle at the end of the barrel. The ERT sensor includes an electrode array for online acquisition of electrical impedance tomography (EIT) data of the melt passing through the nozzle. The screw assembly includes a screw spindle with a longitudinally penetrating internal heat conduction oil channel. This internal heat conduction oil channel is connected to an external temperature control system via a connector. One section of the barrel is a compression section. A segmented thermal response sleeve is fitted around the outer periphery of the screw spindle within the compression section. The outer surface of the thermal response sleeve is provided with an outer peripheral conveying spiral. The thermal response sleeve responds to changes in the fluid temperature within the internal heat conduction oil channel by generating radial expansion displacement, thereby dynamically adjusting the compression ratio by changing the effective root diameter of the screw assembly within the compression section.

The utility model discloses an anti-static filter element for dust filtration, which relates to the technical field of anti-static filter elements, and comprises a bottom cover and a front cover, and further comprises two clamping seats which are respectively arranged on the bottom cover and the front cover; the first anti-static net is arranged between the two clamping seats; the anti-static filter cartridge is arranged between the two clamping seats; the second anti-static net is arranged between the two clamping seats; and the fixing device is arranged on the clamping seat. According to the device, the first anti-static net and the second anti-static net are arranged, and static electricity can be rapidly eliminated in a large area through the pin header design mode. According to the device, the anti-static filter cartridge is arranged, the filter material of the filter cartridge adopts a polyester long fiber-coated conductive fiber anti-static material, and the conductive fiber is added into the original polyester long fiber material, so that the device has an anti-static function on the basis of original filtration.

The invention discloses an anti-static adhesive film suitable for embedded packaging temporary bonding and QFN packaging frame backboard protection and application thereof.The anti-static adhesive film comprises a base film layer, an anti-static coating is arranged on the surface of the base film layer, the surface, subjected to plasma treatment, of the anti-static coating is coated with slurry containing an NCO closed monomer, a photoinitiator and an anti-static material, and the anti-static adhesive film is prepared through the steps that the surface of the base film layer is coated with the slurry containing the NCO closed monomer, the photoinitiator and the anti-static material; and baking at 60-80-120 DEG C for 5 minutes to remove the solvent, and then carrying out ultraviolet light curing under N2 atmosphere. A bifunctional photosensitive monomer-NCO closed monomer is utilized, a firm high-temperature-resistant antistatic coating is formed through photo-crosslinking and chemical bonding of an isocyanate group and a base material, the residual isocyanate group on the surface is used as a reactive handle, and the molar ratio of the NCO group to hydroxyl is regulated and controlled to be (1.2-1.5): 1, so that the high-temperature-resistant antistatic coating is formed. Various types of antistatic functional materials are grafted by covalent bonds, so that the antistatic performance of durability, solvent resistance, high temperature resistance and no migration is realized.

The utility model relates to the technical field of liquid crystal display screens, in particular to a liquid crystal display screen surface anti-static device which comprises a frame, a display screen body installed in the frame, a first anti-static assembly arranged at one end of the frame, a second anti-static assembly arranged at the other end of the frame, and an anti-static film installed on the outer wall of the display screen body. The first anti-static assembly comprises a metal inserting block, an inserting groove is formed in the bottom face of one side of the first anti-static assembly, a fluororubber layer is fixedly arranged on the outer wall of the metal inserting block, the fluororubber layer and the metal inserting block are matched with the inserting groove in an inserting mode, and a plurality of metal conductive blocks are embedded in one end of the frame. According to the utility model, low-resistance conduction is ensured, rapid plugging of the metal plugging block is facilitated, an aged conductive assembly is convenient to replace, the surface of the anti-static film is made of an anti-static material, static accumulation is reduced, low-resistance conduction of the metal conductive block is matched, dual inhibition of static and dynamic static is realized, and the anti-static effect is good. And the static electricity residual risk in a dynamic friction scene is reduced.

The utility model relates to the technical field of non-woven fabrics, and discloses a non-woven fabric with a good antistatic effect, which comprises a non-woven fabric body, the non-woven fabric body comprises a composite layer, a fiber layer is arranged in the center of the interior of the composite layer, an antistatic structure is arranged on the outer side of the fiber layer, and odor absorption structures are arranged inside and outside the fiber layer. The anti-static structure comprises two anti-static materials which are arranged at the upper end and the lower end of the fiber layer. According to the anti-static non-woven fabric, the conductivity of the composite layer can be improved by being compounded with an anti-static material, so that static charges are conducted out together with the conductive fibers, the anti-static coating can form a conductive layer on the surface, accumulation of static electricity on the surface and in the non-woven fabric is conveniently reduced, and the anti-static performance of the non-woven fabric is improved; odor molecules can be adsorbed through the bamboo charcoal fibers and the activated carbon fibers together, the odor molecules can be converted through the microcapsule coating, and the odor adsorption and deodorization performance of the non-woven fabric is further improved.

The application provides an antistatic PMMA material and a preparation method thereof. The antistatic PMMA material comprises the following raw materials in parts by mass: 100 parts of PMMA resin; 5-15 parts of an antistatic agent; 1-5 parts of a lubricant; and 0.1-1 part of an antioxidant. The antistatic agent comprises modified silica microcapsules, the modified silica microcapsules comprise an ionic liquid, the surface of the modified silica microcapsules is grafted with a polymer segment, and the polymer segment comprises a methyl methacrylate unit. The antistatic PMMA material can realize stable and persistent antistatic performance without affecting the transparency, and is particularly suitable for application scenarios, such as electronic display and optical devices, which have high requirements on optical performance and surface resistivity.

The invention relates to the technical field of high polymer materials, in particular to a high-performance polypropylene chemical pipe and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing a compound antioxidant; and uniformly mixing the processing aid PPA, calcium stearate, beta nucleating agent powder and toner, and mixing with the compound antioxidant to obtain the additive. And mixing the polypropylene resin, the antistatic material, the composite flame-retardant material and the additive, and carrying out melt extrusion, cooling and traction to obtain the finished product of the high-performance polypropylene chemical pipe. The finished product prepared by the invention has excellent flame retardance and antistatic property, so that the product has wide application prospects in the technical field of high polymer materials.

The application provides a high-fluidity halogen-free flame-retardant multi-color antistatic composite material, which comprises the following components in parts by weight: PC, 36-88 parts; ABS, 5-25 parts; toughening agent, 1-10 parts; antistatic agent, 0.5-3.9 parts; antioxidant, 0.05-2 parts; anti-dripping agent, 0.05-2 parts; flame retardant, 5-20 parts; wherein the antistatic agent is a liquid antistatic material or a combination of a liquid antistatic material and a solid antistatic material. The application has the beneficial effect that the composite material does not contain dangerous halogen compounds, does not cause harm to human health, can reduce the risk of secondary pollution during recycling and reuse, is more environmentally friendly, and the prepared composite material has good flame-retardant effect, antistatic property and fluidity, and can be customized in color according to product requirements, thereby meeting the market demand for multi-color products.

The invention discloses a kind of antistatic polyamide composite material and preparation method thereof, belong to the field of antistatic material preparation technology.The above-mentioned method comprises the following steps: (1) conductive carbon black is surface-modified using liquid phase ozone oxidation method to obtain carboxyl modified carbon black; (2) diamine and diprotic acid are dissolved in a certain amount of deionized water and added to a high temperature and high pressure reactor, and nitrogen protection, after reacting 1 3h, diprotic acid or diamine is used to adjust pH to 6.5 7.5; (3) then catalyst, antioxidant, lubricant and end group modifier are added to the above-mentioned reactor, react for one end time, then carboxyl modified carbon black is added and prepolymerized; (4) vacuum polycondensation is performed afterwards to obtain antistatic polyamide composite material.Preparation method of the present invention can significantly improve the electrical conductivity of polyamide composite material, realize antistatic modification of polyamide material, and improve mechanical property.

The invention relates to the technical field of clothes care, particularly provides a clothes care device and a control method thereof, and aims to solve the problems that an existing clothes care device does not have a clothes antistatic detection means, so that after daily clothes care work is finished, due to insufficient antistatic substances on clothes, the clothes cannot be kept static. The static electricity is easily generated in the wearing process of the clothes. In order to achieve the purpose, the control method of the clothes care device comprises the steps that clothes characteristics are obtained; clothes drying parameters of the condensation type clothes dryer are obtained; target conductivity is determined according to the clothes characteristics and the clothes drying parameters; obtaining the current conductivity of the condensate water; according to the comparison result of the current conductivity and the target conductivity, whether the conductivity of the to-be-dried clothes meets the use requirement or not is judged, so that a user can decide whether to add an antistatic substance to the clothes or not to reduce the risk that the clothes generate static electricity according to the comparison result.

The invention relates to the technical field of display screen coatings, in particular to a Bailian ultra-black nano-composite coating and application of the Bailian ultra-black nano-composite coating in contrast enhancement of an LED display screen. The invention relates to a Bailian ultra-black nano composite material, which is prepared from the following ingredients in parts by weight: 200 parts of carbon nano tubes, 100 to 200 parts of graphene, 40 to 80 parts of antistatic materials, 20 to 40 parts of ferromanganese black, 400 to 600 parts of resin and 3000 to 4000 parts of ethyl acetate. The anti-static material comprises at least one of titanium black and chromium dioxide; the resin comprises at least one of epoxy resin, polyurethane resin and acrylic resin. On one hand, the corrosion resistance of the coating is enhanced through the ferromanganese black, and generation of pits in the surface of the coating is reduced; on the other hand, the antistatic material is added to improve a three-dimensional conductive network formed by the carbon nanotubes and the graphene, so that the aggregation degree of charges is reduced, and the adsorption probability of dust is reduced.

The present invention provides an anti-static cable tray manufacturing device and method, comprising a base, a boss fixed to the top of one end of the base, and a pressing frame provided on the top of the boss, a baking oven fixed to the top of the other end of the base, and a plug plate slidably plugged into the inlet end of the baking oven, a spray device is provided on the surface of the base between the boss and the baking oven, and the arrangement of the pipe-through groove can facilitate the connection of the nozzles on the inner frame and the outer frame with an external antistatic agent mixture storage box through a hose, compared with the prior art, after the metal plate is pressed into shape by the pressing frame, the pushing assembly is pushed along the base into the baking oven, and when passing through the spraying assembly, the nozzles on the inner frame and the outer frame simultaneously spray the antistatic material on the inner and outer surfaces of the cable tray along the path, thereby improving the processing efficiency of the cable tray, reducing the time spent on manual operation, and making the production of anti-static cable tray more efficient.

The utility model relates to blister tray technical field discloses a kind of blister trays for placing curved display screen, including disc body, by blister process integrated molding, surface forms at least one placement area, the bottom of the placement area is equipped with the arc-shaped support surface adapted to the curvature of curved display screen, edge is equipped with transition fillet, positioning protrusion, along the arc-shaped support surface edge setting, with the edge profile matching of the curved display screen, buffer bump, distributed on the arc-shaped support surface, made of elastic material and height is less than display screen and support surface gap, reinforcing rib, be distributed in the grid shape in the disc body bottom, positioning groove and positioning boss, respectively in the disc body top and bottom edge. In the utility model, through arc-shaped support surface adaptation curved display screen curvature, cooperate positioning protrusion accurate limit, buffer bump reduces vibration impact, antistatic material and coating avoid static damage, effectively protect display screen from scratching and external force influence.

The application relates to the technical field of high polymer composite materials, and discloses a siloxane-based heat-conducting anti-static material and a preparation method thereof, which comprises the following components by weight: 70-80 parts of bisphenol A type epoxy resin E51, 3-5 parts of epoxy-terminated diphenyl trisiloxane, 15-20 parts of methylhexahydrophthalic anhydride curing agent, 3-6 parts of an anti-static agent, 5-8 parts of polyaniline-modified graphene oxide, 0.4-0.6 parts of citric acid and 0.1-0.2 parts of 2,4,6-tris(dimethylaminomethyl) phenol accelerator. The siloxane-based heat-conducting anti-static material has good heat conduction, anti-static and tensile effects.

The application belongs to the field of high polymer materials, and particularly relates to an antistatic ABS material and a preparation method and application thereof. The antistatic ABS material provided by the application contains the following components in parts by weight: modified ABS grafting glue powder 35-45 parts, SAN resin 50-60 parts, compounded antistatic agent 2-4 parts, compounded light stabilizer 0.2-0.5 parts, lubricant 0.5-1.0 parts, and antioxidant 0.2-0.5 parts. The antistatic ABS material provided by the application has good antistatic performance, high rigidity and high low-temperature toughness through the synergistic cooperation of the components.

The invention relates to the technical field related to electrostatic detection, in particular to an electrostatic detection probe. According to the static detection probe, a shell comprises a first shell section and a second shell section, the second shell section is a metal piece, the first shell section is made of an anti-static material, the first shell section is provided with a static detection window, an induction piece is located in the static detection window, and a gap is formed between the induction piece and the inner side wall of the static detection window so as to allow the induction piece to vibrate; the circuit module is arranged on the mounting plate and used for controlling the vibration piece to vibrate so as to drive the vibration arm to vibrate and receive the voltage signal sensed by the sensing piece. The shell part where the electrostatic detection window of the electrostatic detection probe is located is made of the anti-electrostatic material, compared with a metal material, the detection window has smaller influence on an electric field, charges are not prone to being conducted to the ground along the metal material, the quantity of the charges can be kept stable, especially in a scene with few charges, the electric field is stable, and the detection efficiency is improved. And the detection accuracy is high.

The present invention relates to a safe embossing printing ink which can be used in dry offset and common offset printing systems as well as inkjet offset digital printing systems to promote a wide range of markets, such as industrial and commercial packaging, food, pharmaceutical, health, cosmetics, in particular on paper and paper, in particular on paper, in particular on paper. The invention relates to an ink composition which can be used in security documents and packaging in the field of printing using embossing printing, which achieves a significant reduction in cost by obtaining the desired product at a time, and which comprises an ink composition comprising at least one UV-curable photopolymerization initiator (1) material, at least one filler material (2) with thickening properties, and at least one pigment (3). At least one polymer material (3), at least one antistatic material (4), at least one antioxidant ingredient (5), at least one ultraviolet blocking material (6), an aerosol (7) as at least one moisturizing and anticoagulant material, at least one additive (8) having wetting, dispersing, leveling, defoaming, rheology modifying properties, at least one curing agent (9), at least one coloured pigment (10).

The invention relates to the technical field of high polymer materials, and discloses an anti-static PPE material and a production process thereof. The anti-static PPE material is prepared from the following raw materials in parts by weight: 40 to 60 parts of PPE resin, 15 to 25 parts of polystyrene, 8 to 12 parts of polyphenylene sulfide, 3 to 8 parts of acrylonitrile-butadiene-styrene block copolymer grafted maleic anhydride, 6 to 10 parts of modified conductive carbon black, 1 to 2 parts of antioxidant and 0.5 to 1.5 parts of lubricant. Compared with a traditional antistatic material, the antistatic performance of the material is improved by adopting a small molecule antistatic agent or adding a large amount of conductive filler, the antistatic performance of the PPE material is improved by adopting the modified conductive carbon black, and PEE can obtain excellent antistatic performance only by adding a relatively small amount of the modified conductive carbon black.

The MPPO antistatic material is prepared from 60 to 90 parts of MPPO resin, 5 to 25 parts of modified antistatic agent, 3 to 15 parts of modified fiber and 3 to 10 parts of additive, wherein the modified antistatic agent comprises an antistatic agent, carbon black, boric acid and zinc oxide, the addition amount of the carbon black is 7-10% of the total amount of the antistatic agent, the addition amount of the boric acid is 4-6% of the total amount of the antistatic agent, and the addition amount of the zinc oxide is 4-8% of the total amount of the antistatic agent. The modified fiber and the MPPO resin form strong interface bonding through the silane coupling agent, so that the mechanical strength of the material is enhanced. And boric acid, zinc oxide and other components in the modified antistatic agent can improve the thermal stability and chemical stability of the material, and can protect the interface structure of fibers and resin and prevent interface damage when the material is subjected to external force or under different environmental conditions, thereby synergistically improving the mechanical properties and durability of the material.

The utility model discloses an anti-static packaging bag structure special for fireworks and crackers, which belongs to the technical field of packaging bags and comprises an outer packaging structure, the outer packaging structure comprises an outer packaging bag and a sealing strip, and the outer packaging bag is provided with an opening; the inner packaging structure comprises a bottom paperboard, a partition plate and a protective sponge, and the partition plate is made of an antistatic material; according to the anti-static firework packaging bag, the inner packaging bag structure is arranged, in the initial state, the bottom paper board, the partition plates, the protective sponge and the connecting belt are all arranged in the outer packaging bag, and the partition plates made of anti-static materials separate a plurality of fireworks and firecrackers to prevent the fireworks and firecrackers from generating static electricity due to mutual friction; and then, a user places the cover paper board into the outer packaging bag through the opening, the end, away from the bottom paper board, of the connecting belt penetrates through the penetrating hole, and the connecting belt is arranged. The fireworks and the crackers are fixed between the bottom paper board and the cover paper board, so that the fireworks and the crackers are prevented from colliding with each other in the outer packaging bag to be impacted in the transportation process.

The application provides an ultra-soft non-woven fabric and a preparation method and application thereof, and the preparation method comprises the following steps: preparing a spun-bond layer, mixing spun-bond layer raw materials according to a proportion, and then performing screw extrusion melting, spinning, drawing and web laying to obtain the spun-bond layer; preparing a melt-blown layer, mixing melt-blown layer raw materials according to a proportion, and then performing screw extrusion melting and spinning web laying to obtain the melt-blown layer; taking the melt-blown layer as an intermediate layer, laying the spun-bond layer on both sides of the melt-blown layer to obtain a three-layer structure, and then performing hot-pressing adhesion to obtain the ultra-soft non-woven fabric, wherein the mass ratio of the intermediate layer to the ultra-soft non-woven fabric is 25-35%. The raw materials of the spun-bond layer comprise ethylene-octene copolymer, polypropylene, antistatic material and slip material, the mechanical property and skin friendliness of the non-woven fabric can be significantly improved through improvement of the spun-bond layer material, and the prepared ultra-soft non-woven fabric can be applied to preparation of hand-washing clothes, and has a good application prospect.

This invention discloses an antistatic, antibacterial, and formaldehyde-removing ceramic tile and its preparation method, belonging to the field of special ceramic tile technology. The antistatic, antibacterial, and formaldehyde-removing ceramic tile of this invention comprises, from bottom to top, a tile body, a surface glaze layer, and a protective glaze layer. The surface glaze layer is made from a surface glaze base material and nano-sized oxide materials, including any one or more combinations of nano-zinc oxide, nano-titanium dioxide, nano-alumina, and nano-magnesium oxide. The protective glaze layer is made from a protective glaze base material and an antistatic material. This invention, by adding nano-sized oxide materials to the surface glaze layer, allows the nano-sized oxide materials and the antistatic materials in the protective glaze layer to interact, giving the tile excellent antistatic effects and also enabling it to possess antibacterial and formaldehyde-removing functions. This broadens the functionality of the tile, allowing it to be used in diverse environments and solving the problems of poor antistatic effects and limited functionality in current antistatic ceramic tiles.

The invention belongs to the technical field of high polymer materials, and discloses a preparation method of an optical PC flame-retardant weather-resistant antistatic material, and the preparation method comprises the following specific steps: S1: selecting materials to synthesize a flame-retardant antistatic agent, S2: doping a flame retardant with PC for covalent connection, and S3: molding the mixture to prepare a target PC material. According to the invention, by integrating the core information of'raw material-process-performance-application 'of the high polymer material, the logic fracture caused by step dispersion is avoided; the full view of the rapid high polymer material grasp high polymer material technology for readers is as follows: the high polymer material S1 synthesizes 1-5 high polymer material parts of a flame-retardant antistatic agent containing double functional groups from a specific raw material, which is the basis of subsequent reaction; the high polymer material S2 and the high polymer material PC are doped according to 3-5 parts of the high polymer material, and the key effects of realizing uniform arrangement of groups and stabilizing carbonate groups are achieved through covalent bond connection.

The invention provides an antistatic dustproof film as well as a preparation method and application thereof, and relates to the technical field of automobile protection materials. The anti-static dustproof film comprises a base material layer and an adhesive material layer, the base material layer comprises polyethylene, metallocene polyethylene and a permanent anti-static material; and the adhesive layer comprises a thermoplastic elastomer and a permanent anti-static material. According to the anti-static dustproof film, the anti-static performance of the surface of an automobile can be remarkably improved, the electrostatic voltage of the dustproof film in the tearing process is remarkably reduced, damage of electrostatic discharge to electronic equipment in the automobile is prevented, and therefore the safety and efficiency of the automobile manufacturing process are improved; and the electrostatic dustproof film keeps good transparency, mechanical strength, wear resistance and weather resistance at the same time.

The application discloses a kind of purification methods of crystalline graphite, belong to graphite purification technical field, the crystalline graphite with carbon content greater than 82% is pretreated with fluoride salt mixture, sodium chloride, dispersing agent, deionized water are added to the crystalline graphite after pretreatment, fluoride salt mixture, then again drying is obtained viscous mixture, heat treatment is carried out under inert atmosphere, high-carbon crystalline graphite can be obtained after washing with water.Hydrochloric acid, deionized water are directly added to the mixture after heat treatment, heated and stirred, after reaction, graphite is separated by filtration, and waste liquid is recovered and treated;The separated graphite is repeatedly washed with water, filtered, dried and crushed to obtain high-carbon crystalline graphite with carbon content higher than 99%.The high-carbon crystalline graphite obtained by the application has a water content of not more than 0.5%, an ash content of not more than 0.7%, and the finished product can be applied to electromagnetic shielding materials, antistatic materials, conductive materials, corrosion-resistant materials, lubricants, fireproof materials and the like.

The present application relates to the technical field of antistatic material, and relates to an antistatic styrene copolymer for producing a carrier tape and a preparation method thereof, which comprises the following components in percentage by mass: HIPS 45%-60%, HIPS / PPO alloy 6%-10%, conductive carbon black 15%-25%, compatibilizer 5%-15%, toughening agent 6%-15%, carbon black dispersing agent 2%-5%, antioxidant 0.3%-0.8%, lubricant 0.5%-1%, and the carbon black dispersing agent comprises a coupling agent and a medium-long chain fatty tertiary amine. Through the synergistic design of the binary carbon black dispersing agent of the tertiary amine-coupling agent and the HIPS / PPO heat-resistant alloy, the problems of no crystal point, no carbon deposition, 225 DEG C heat sealing without melting, and no black falling in tearing of the styrene system filled with 15%-25% high carbon black are solved, and the industrial grade requirements of continuous high-speed production of the carrier tape are met.