22results about How to "Reduced flame retardancy" patented technology

The invention discloses an aluminum-plastic composite panel with a fireproof structure, and relates to the technical field of aluminum-plastic composite panels, the aluminum-plastic composite panel comprises a fireproof layer, and a top aluminum plate mounting plate is mounted at the bottom of the fireproof layer. Then, the heat is transferred to a heat-conducting metal conduction sheet plate and then transferred to a wire fixing heat-conducting end, so that the temperature is rapidly increased, the wire fixing heat-conducting end transfers heat to a polyethylene fracture node, so that the polyethylene fracture node is melted and fractured, a polypropylene fiber connecting wire ring losing support also melts, a limiting hook is released, and a needling trigger piece rapidly punctures a flame-retardant gas storage device; the flame-retardant gas is released, and the flame-retardant gas is quickly diffused to the periphery of the flame along with the quick release of the flame-retardant gas to form a protective layer, so that the contact between the flame and surrounding combustible materials is effectively isolated, and further spreading of the fire behavior is slowed down or even stopped.

The invention discloses a flame retardant with a double-layer microcapsule structure, a flame-retardant polyurethane material as well as a preparation method and application of the flame-retardant polyurethane material, and belongs to the technical field of flame retardants. The material is a multifunctional flame retardant with a double-layer core-shell structure, a shell layer is calixarene boric acid resin, a middle shell layer is melamine phthalic anhydride resin, and a core layer is hydroxyapatite modified aluminum hypophosphite. Due to the high cross-linking degree between polymers, the flame retardance of polyurethane is improved, meanwhile, the mechanical property of the polyurethane is improved, and the flame retardance and seawater corrosion resistance of the material are synergistically enhanced through hydroxyapatite dispersed in the core layer. The double-shell layer has excellent hydrophobicity, prevents internal aluminum hypophosphite from being affected with damp and has anti-fouling and self-cleaning effects, and the prepared flame-retardant polyurethane composite material has excellent tensile and flexible characteristics due to a double network of hydrogen bonds and covalent bonds.

The invention relates to the technical field of chemical fibers, and discloses a low-thermal-conductivity anti-ultraviolet fiber, a preparation method and application of the low-thermal-conductivity anti-ultraviolet fiber to a light-shading and heat-shielding fabric. The preparation method of the low-thermal-conductivity anti-ultraviolet fiber comprises the following steps: carrying out surface modification and functionalization treatment on a porous zinc oxide nanosheet to obtain a functionalized zinc oxide nanosheet; performing in-situ growth of cobalt borate on the surface of the functionalized zinc oxide nanosheet to obtain a composite nanomaterial; polyacrylonitrile, N, N-dimethylformamide and the composite nanomaterial are mixed, and a skin layer spinning solution is obtained; mixing the modified cellulose-based aerogel powder and N, N-dimethylformamide to obtain a core layer spinning solution; spinning the skin layer spinning solution and the core layer spinning solution to obtain polyacrylonitrile / aerogel composite fibers; the polyacrylonitrile / aerogel composite fiber is modified by diethylenetriamine, and an intermediate product is grafted to obtain the low-thermal-conductivity anti-ultraviolet fiber. The low-thermal-conductivity anti-ultraviolet fiber disclosed by the invention is low in thermal conductivity, good in anti-ultraviolet and flame-retardant effects and excellent in mechanical property.

The utility model discloses a double-shielding high transmission data cable, including: insulating core wire, buffer hose, aluminum plastic composite tape, ground wire, metal braid layer and sheath, insulating core wire is formed by three insulating layer co-extrusion on the conductor, every two insulating core wire pair twist to form one group of twisted pair wire, each group of twisted pair wire is lapped with aluminum plastic composite tape, the metal braid layer is lapped with the buffer hose, the metal braid layer is lapped with the metal braid layer, the metal braid layer is lapped with the metal braid layer, and the metal braid layer is lapped with the metal braid layer. The four groups of twisted pair wires are twisted into a cable by taking the ground wire as a center, a metal braided layer is braided on the four groups of twisted pair wires which form the cable, an aluminum foil layer on an aluminum-plastic composite belt is in contact with the metal braided layer and the ground wire, a buffer hose is spirally wound on the metal braided layer at equal intervals, and the buffer hose is formed by mixing and extruding a PVC material and aluminum hydroxide particles. And a sheath is extruded on the metal braid layer, is filled in the gap of the buffer hose and is attached to the metal braid layer. The advantages of the utility model are that the cable can maintain the high-speed and high-reliability transmission performance of data signals in a conventional environment and an environment in which a fire disaster occurs or a building collapses.

The utility model discloses a power distribution cabinet of an enclosed bus, comprising a power distribution cabinet body, one end of the power distribution cabinet body is provided with a processing box, one side of the processing box is provided with a locking knob, one end of the processing box is provided with an air inlet, the processing box is internally provided with a water collecting tank, the processing box is internally provided with a desiccant tank, and the desiccant tank is provided with an air outlet. And a filter screen plate is mounted at the top end of the treatment box. According to the utility model, by arranging the dehumidification collection structure, the beneficial effects of the utility model are that when in use, the desiccant groove is placed inside the processing box, after the processing box is plugged into the power distribution cabinet body, the locking knob penetrates through the processing box and is fixed with the power distribution cabinet body, and the desiccant groove inside the processing box absorbs moisture inside the power distribution cabinet body through the filter screen plate; and water vapor in the power distribution cabinet body flows into a water collection tank in the treatment box through a filter screen plate, and moisture-absorbing water in the dehumidizer tank also enters the water collection tank through the treatment box, so that the dehumidification and collection functions are realized.

The invention relates to the technical field of cable materials, and particularly discloses a flame-retardant elastomer cable material for a new energy charging pile and a preparation method of the flame-retardant elastomer cable material. The flame-retardant elastomer cable material for the new energy charging pile is formed by melting and blending low-density polyethylene, an ethylene-octylene copolymer, boron silicification amino cerium trimethylene phosphonate-graphite, maleic anhydride grafted polypropylene and an auxiliary agent, and matrix resin is the low-density polyethylene and the ethylene-octylene copolymer. The flame-retardant cable material has the advantages of low price, good electrical insulating property, easiness in processing, environmental stress resistance, corrosion resistance and the like, and a good flame-retardant effect is obtained by adding an efficient flame-retardant substance, namely boron silicification amino cerium trimethylene phosphonate-graphite.

The application discloses a kind of natural rubber filling nickel-aluminum bimetallic hydroxide multi-walled carbon nanotube composite material for electronic component packaging, belong to packaging material technical field, the composite material includes natural rubber matrix and dispersed nickel-aluminum bimetallic hydroxide / multi-walled carbon nanotube hybrid filler, the hybrid filler is made of multi-walled carbon nanotube and nickel-aluminum layered double hydroxide grown in its surface in situ.Its preparation method is: multi-walled carbon nanotube, nickel source, aluminum source, urea and ammonium fluoride are dissolved in water and prepared hybrid filler by hydrothermal reaction;Then it is mixed with natural latex, vulcanization aid dispersion, freeze-drying, vulcanization is obtained.The application improves the dispersibility of filler by constructing LDH / MWCNT hybrid structure, uses phonon transmission optimization, synergism of loss and impedance, combustion inhibition and the friction and reinforcing mechanism of hybrid filler and natural rubber molecular chain, so that the thermal conductivity, electromagnetic wave absorption capacity, flame retardancy, mechanics and damping performance of the composite material are simultaneously improved, suitable for electronic component packaging field.

The present invention relates to the technical field of epoxy resins, specifically to a high thermal conductivity epoxy resin composition based on copper clad laminates and a preparation method thereof. The present invention uses hexagonal boron nitride as a filler, and is mixed with epoxy resin, diluent, epoxy toughening agent, coupling agent, defoamer, and antioxidant to prepare an epoxy resin composition; Boron nitride is modified by polydopamine to improve the compatibility of boron nitride and epoxy resin, enhance the interfacial bonding force, so that the thermal resistance of the epoxy resin composition is reduced, and the thermal conductivity is improved; In order to further improve the flame retardant properties of the epoxy resin composition, the present invention uses 4-hydroxy-benzophenone and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as raw materials to prepare a flame retardant, and the flame retardant is grafted onto polydopamine-modified boron nitride by phosphorus oxychloride to achieve the flame retardant modification of boron nitride. The epoxy resin composition prepared by the present invention has a large thermal conductivity and good flame retardant properties, which meets the production needs of copper clad laminates.

A laser-weldable high-blackness halogen-free flame-retardant glass fiber reinforced PA6 material and a preparation method thereof, the material comprises the following components in percentage by mass: PA6 resin 26.9-45.4%, glass fiber 25-35%, halogen-free flame retardant 16-18%, laser penetrant A 10-20%, laser penetrant B 3-5%, antioxidant 0.1-0.3%, lubricant 0.5-0.6%, flow agent 0.4-0.6%, toner 0.2-2%; PA6 resin, two laser penetrants, and toner are put into a high-mixer, and then an auxiliary agent is added to obtain a mixed main material A, and the mixed main material A is put into the main feeding hopper of a twin-screw extruder; the halogen-free flame retardant and glass fiber are respectively added to the weight-loss feeding hoppers of the second heating zone and the fourth heating zone; the extruded material strip is cooled, pelletized, and dried to obtain a finished product. The preparation process is green, simple, and low-cost, and the obtained PA6 material has high strength and high laser transmittance.

The application discloses an addition type heatproof silicone rubber composite material, a preparation method and application. The addition type heatproof silicone rubber composite material comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 20-50 parts of branched vinyl phenyl polysiloxane, 30-50 parts of fumed white carbon black, 20-30 parts of fiber filler, 10-20 parts of flame-retardant filler, 10-30 parts of hydrogen-containing silicone oil and 1-5 parts of platinum catalyst. The branched vinyl phenyl polymer is introduced into the addition type silicone rubber system, the branched structure has a plurality of vinyl active sites and low viscosity characteristics, the addition type heatproof material system has good mechanical strength, flexibility and thermal stability, the reinforcing filler and the flame-retardant filler can be reduced, the mechanical properties of the material are improved, the density is further reduced, the research direction of high strength, low density and high ablation resistance of the heat protection material is met, and the application has a wide prospect in the field of solid rocket engine heat protection materials.

The invention relates to the technical field of insulating materials, in particular to a preparation process of a novel rubber insulating material. The problem that a rubber insulating material is poor in flame retardant property and insulating property is solved. By preparing the composite silicone rubber, the mass ratio of aluminum hydroxide particles, nano-montmorillonite and short glass fibers, the diameter of the short glass fibers, the mass ratio of a first mixture to a curing agent, the rotating speed and the curing time are changed; an effective flame-retardant network can be formed by changing the dosage of the catalyst, the temperature of the polymer, the stirring time of the polymer and the dosage of the elastomer, so that the flame-retardant property of the rubber material is improved; the phenyl content in the phenyl silicone rubber, the average molecular weight and viscosity of the phenyl silicone rubber and the DMC dosage are changed; preparing modified barium titanate, and changing the reflux reaction temperature, the drying temperature and the dosage of the modified barium titanate; the mixing temperature and time of the mixture I are changed, and the temperature and time of two-time vulcanization are changed, so that the insulating property of the rubber material is improved.

The invention discloses self-lubricating flame-retardant epoxy resin for pultrusion of basalt fibers as well as a preparation method and application of the self-lubricating flame-retardant epoxy resin, and relates to the technical field of high polymer materials. The self-lubricating flame-retardant epoxy resin is prepared from the following raw materials in parts by mass: 100 parts of a phenolic aldehyde modified epoxy resin solution, 0.5-2 parts of a silane coupling agent, 2-8 parts of modified graphite powder, 20-30 parts of modified nano aluminum hydroxide, 0.5-1.0 part of a plasticizer, 0.2-0.8 part of an accelerant and 10-15 parts of a diluent. The modified graphite powder and the modified nano aluminum hydroxide are used as inorganic inert fillers to synergistically modify the epoxy resin, so that the basalt fiber pultrusion sectional material has the characteristics of low friction coefficient, good flame retardance, high strength, good toughness and low shrinkage rate, is simple in preparation process and easy for industrial production, and has wide application prospects in the field of basalt fiber pultrusion sectional materials.

The invention relates to the technical field of flame-retardant polypropylene materials, and discloses a flame-retardant polypropylene composition for automotive interiors and a preparation method thereof.The composition is prepared from, by mass, 30-60 parts of polypropylene hydrocarbon, 10-40 parts of methyl vinyl silicone rubber, 8-12 parts of compatilizer, 1-10 parts of dimethyl silicone oil, 0.01-0.1 part of catalyst, 1-2 parts of hydrogen-containing silicone oil, 0.5-2 parts of dispersing agent, 0.1-0.5 part of antioxidant and 16-21 parts of flame retardant. The flame retardant is formed by mixing a first flame retardant and a second flame retardant according to a mass ratio of 1: (1-2); the first flame retardant is prepared from the following raw materials: melamine, phosphonitrilic chloride trimer, diphenyl disilanol, triethylamine and a solvent; the second flame retardant is at least one of piperazine pyrophosphate, melamine polyphosphate MPP, aluminum diethylphosphinate, aluminum phosphite and ammonium polyphosphate. According to the invention, the problem that flame-retardant polypropylene for automotive interiors in the prior art cannot give consideration to both flame retardance and mechanical properties well is solved.

The present invention provides a hot-melt benzoxazine resin composition, a prepreg, a composite material and a preparation method thereof, wherein the hot-melt benzoxazine resin composition comprises the following components by weight: 30-80 parts of benzoxazine resin, 10-50 parts of epoxy resin, 10-30 parts of toughening agent, 2-15 parts of flame retardant, 10-25 parts of curing accelerator and 1-15 parts of epoxy diluent. The hot-melt benzoxazine resin composition, prepreg, composite material and a preparation method thereof have the characteristics of high heat resistance, strong mechanical properties, good flame retardancy, low product porosity and the like, and meet the requirements of aviation applications.

The invention relates to an electrolyte of a whole-chlorine solvent and an electrochemical device, the electrolyte of the whole-chlorine solvent comprises electrolyte salt and the whole-chlorine solvent, and the whole-chlorine solvent is composed of chlorinated ether and chlorinated carbonic ester. The electrolyte of the whole-chlorine solvent provided by the invention adopts the chlorinated ether and the chlorinated carbonate as the solvent of the electrolyte, does not contain flash point components, and has low volatility, low inflammability, flame retardance and compatibility with positive and negative electrodes, so that the battery shows good electrochemical performance and relatively high safety.

The invention discloses an efficient material plasticizing, extruding and foaming system and a using method.The efficient material plasticizing, extruding and foaming system comprises a plasticizing station and a mixing station, and is characterized in that the plasticizing station is arranged to be a high-speed rotating material plasticator with a non-pressure rotating collision structure; an outlet of the high-speed rotating material plasticator is provided with a parallel double-screw mixing and cooling device used for cooling mixed materials at a low temperature, a using method of the efficient material plasticizing, extruding and foaming system comprises the steps that a foaming agent is injected through the foaming agent injection device, efficient conveying, stirring and mixing are conducted through the parallel double screws, and preliminary cooling is conducted; the high-speed rotary material plasticator has the beneficial effects that the high-speed rotary material plasticator with a non-pressure rotary collision structure is creatively designed, so that secondary feeding becomes possible; no flame retardant is added in the plasticizing process, the materials are cooled in the parallel double screws, the flame retardant does not pass through high temperature and is not decomposed, the flame retardant effect is good, and raw materials are saved.

The invention provides a TPU wire rod and a preparation method thereof, and belongs to the technical field of polyurethane. The flame-retardant thermoplastic polyurethane elastomer is prepared from the following raw materials in parts by weight: 3-5 parts of modified graphene oxide, 7-10 parts of flame-retardant ionic liquid, 1-3 parts of a plasticizer, 0.5-1 part of a stabilizer, 0.1-0.3 part of a dispersant and 70-80 parts of a thermoplastic polyurethane elastomer. The TPU wire prepared by the invention has better flame retardance, excellent mechanical properties, high compatibility among various raw materials, lower cost and excellent performance, the preparation method is simple and efficient, and the TPU wire can be used as a flame-retardant TPU wire and has a wide application prospect.

The invention provides a biological phenolic epoxy resin composition and application thereof. The biological phenolic epoxy resin composition comprises the following components in parts by mass: 60-140 parts of biological phenolic epoxy resin, 5-90 parts of a curing agent, 0.01-3 parts of a curing accelerator and 10-100 parts of a toughening agent. According to the biological phenolic epoxy resin composition, the biological phenolic epoxy resin is used as main body resin, and through component design and mutual compounding, a cured product can form a rich and compact multi-dimensional cross-linked network structure, so that the biological phenolic epoxy resin composition, and the prepreg, the laminated board and the metal foil-clad laminated board containing the biological phenolic epoxy resin composition have excellent low-carbon footprint characteristics; meanwhile, the heat resistance, the cohesiveness, the moisture resistance, the heat and humidity resistance, the processability and the like are obviously improved, and the comprehensive performance is excellent.

The invention provides a nylon composite material, a preparation method thereof and a battery pack shell. The preparation method comprises the following steps: pretreating a reinforcing filler by adopting a silane coupling agent to obtain a modified reinforcing filler; mixing the modified reinforcing filler, semi-aromatic nylon, a flame retardant, a silane coupling agent, an antioxidant and an anti-ultraviolet aging agent, and granulating to obtain a mixture; and carrying out micro-foaming injection molding treatment on the mixture to obtain the nylon composite material. The nylon composite material prepared by the invention has the advantages of low density, excellent mechanical property, excellent flame retardant property and the like.

The embodiment of the invention discloses a high-strength cold-resistant water-pressure-resistant flame-retardant low-gram-weight chinlon fabric treatment glue solution and a treatment method. The treatment glue solution provided by the invention comprises the flame-retardant bottom coating glue and the anti-sticking surface coating glue, and after the chinlon fabric is treated, the obtained fabric keeps low gram weight and is obviously superior to an existing product in the aspects of flame retardance, tearing strength, hydrostatic pressure, low temperature resistance and wear resistance; the low gram weight, cold resistance, water pressure resistance, flame retardance, high strength, washing resistance, wear resistance and adhesion resistance are achieved at the same time, and good application prospects are achieved in the aspect of multifunctional integrated light fabric manufacturing.

The application provides thermoplastic polyphenyl ether containing a reticular phosphorus crosslinking structure and a preparation method and application thereof. The preparation method of the thermoplastic TPV crosslinking polyphenyl ether provided by the application constructs part of PPO resins into a reticular structure through the reaction of phosphorus oxychloride and the end hydroxyl group of polyphenyl ether. The modified polyether can not only rely on an external flame retardant to improve the flame retardant property of the material, but also further improve the heat resistance and rigidity of the polyphenyl ether material under the premise of excellent flame retardant property.

The utility model discloses a semi-conductive high flame retardant belting and cable relates to high flame retardant belting field, including flame retardant belting body, the flame retardant belting body includes glass fabric and set up on the flame retardant coating of glass fabric two opposite surfaces, the flame retardant coating is the coating of nanometer conductive particle and yellow sand, when used, the coating of nanometer conductive particle and yellow sand are fixed in the flame retardant belting body. The protective film on the inner side of the flame-retardant wrapping tape body can be torn off, so that the bonding layer can be bonded to the outer side of a cable sheath to complete wrapping, wrapping is tighter, when the cable is not used, the protective film can protect the bonding layer and prevent dust from entering the cable, after wrapping of the cable is completed, the protruding ends are located on the outer side, and when the cable is dragged on the ground, the cable is prevented from falling off. When the cable is dragged, a plurality of protruding ends are rubbed preferentially, so that the flame-retardant coating is prevented from being directly damaged during dragging, and the flame-retardant effect is prevented from being reduced. In addition, after the protruding end is damaged, yellow sand in the protruding end leaks out, and the damaged area can be protected all the time.