179results about How to "Flame retardant" patented technology

The invention relates to a flame-retardant toughening agent for a polypropylene material and a preparation method of the flame-retardant toughening agent, and belongs to the technical field of macromolecular flame-retardant toughening, and the preparation method comprises the following steps: firstly combining an aromatic compound with melamine, and then combining with a flame-retardant material to obtain a flame-retardant compound; the preparation method comprises the following steps: combining itaconic anhydride, a modified toughening agent, octavinyl silsesquioxane and polypropylene through graft copolymerization to obtain grafted polypropylene; combining the flame-retardant compound with grafted polypropylene to obtain a modified flame-retardant toughening agent; and mixing the modified flame-retardant toughening agent with an antioxidant and a lubricant, and carrying out melt blending extrusion to obtain the flame-retardant toughening agent for the polypropylene material. According to the technical scheme, the aromatic compound, the melamine and the flame-retardant material are combined, so that the flame-retardant property of the polypropylene material is effectively improved; the itaconic anhydride, the modified toughening agent and the octavinyl silsesquioxane are combined with the polypropylene, so that the impact toughness and the mechanical property of the polypropylene material are enhanced, and the comprehensive performance of the flame-retardant toughening agent is generally improved.

The invention relates to the technical field of coating preparation, and particularly discloses a multifunctional composite filler modified water-based coating and a preparation method thereof.The water-based coating is prepared from, by weight, 80-100 parts of modified core-shell acrylic acid dispersoid, 5-7 parts of multifunctional composite filler, 0.5-1 part of defoaming agent, 0.5-1 part of wetting agent, 2-5 parts of thickening agent, 1-2 parts of coalescing agent and 25-35 parts of deionized water. The water-based paint provided by the invention is modified by adding a proper amount of multifunctional composite filler, the performance is excellent, the stability is good, the components in the water-based paint have good compatibility by optimizing the preparation process conditions of the water-based paint, and the preparation method is simple to operate and suitable for industrial production.

The invention discloses a halogen-free flame-retardant environment-friendly heat-resistant cable and a preparation method thereof, belongs to the technical field of cable material processing, and is used for solving the technical problem that the mechanical strength and heat resistance of a halogen-free flame-retardant environment-friendly cable in the prior art need to be further improved. The cable comprises a plurality of cable conductors, a wrapping layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer comprises the following components in parts by weight: 70-80 parts of low-density polyethylene, 20-30 parts of modified polysiloxane, 10-16 parts of modified polyvinyl alcohol, 15-18 parts of modified kaolin, 2-3 parts of an initiator and 3-4 parts of an auxiliary additive. Low-density polyethylene is reinforced and modified through modified kaolin, modified polyvinyl alcohol and modified polysiloxane, so that not only are the mechanical strength and flame retardance of the environment-friendly heat-resistant cable effectively improved, but also the high-temperature resistance of the cable is improved, and the service life of the cable in a high-temperature environment is prolonged.

The invention belongs to the field of high polymer materials, and discloses a surface flame-retardant compatibilization glass fiber reinforced PPE / PS alloy material and a preparation method thereof, the alloy material comprises the following raw materials by weight: 10-84.98% of bulk flame-retardant MPPE resin; 5-35% of polystyrene resin; 10 to 40% of flame-retardant glass fiber; 0.01 to 10% of a flame retardant; 0.01 to 2% of a synergistic flame retardant; and 0-3% of other auxiliary agents. The prepared PPE / PS alloy material has excellent mechanical properties, processability and flame retardance, and can be used in the fields of household appliances, electric appliances, automobiles, optical fiber parts and the like.

The invention belongs to the technical field of insulating flame-retardant adhesive tapes, and particularly relates to an insulating flame-retardant adhesive tape and a preparation method thereof. According to the invention, phytic acid reacts with 3-amino-5-methylpyrazole, triaminopyrimidine and polyether amine-2000 to prepare a flame-retardant auxiliary agent, and the flame-retardant auxiliary agent is compounded with magnesium hydroxide, zinc borate and melamine to prepare a modified flame retardant which can generate an expansive carbon layer during combustion to block heat and isolate oxygen so as to achieve a flame-retardant effect; an aluminum oxide layer generated on the artificial diamond micro-powder is used as an insulating heat-conducting aid, so that the insulativity, wear resistance and corrosion resistance of the insulating flame-retardant adhesive tape are improved, the adhesive tape can be assisted in uniform heat conduction, and combustion caused by over-high local temperature is prevented; epoxy resin is used for wrapping the uniformly dispersed insulating heat-conducting auxiliary agent, and anisyl and boron nitride ceramic powder are cured to prepare an insulating material, so that the dielectric breakdown performance of the adhesive tape is enhanced. The insulating flame-retardant adhesive tape prepared by the invention is excellent in insulativity and flame retardance and free of halogen flame retardants, and the production process is environment-friendly.

The invention relates to the technical field of waterproof coiled materials, and discloses a flame-retardant waterproof coiled material and a preparation method thereof.The flame-retardant waterproof coiled material is prepared from, by weight, 100 parts of thermoplastic polyolefin elastomer, 20-40 parts of modified flame retardant, 5-18 parts of fiber filler, 0-3 parts of lubricant, 0-3 parts of antioxidant, 0-3 parts of stabilizer and 0-15 parts of pigment; the modified flame retardant takes MOF, hexagonal boron nitride and phytic acid as an inner core, and polysiloxane is cross-linked and polymerized on the surface of the inner core. According to the flame-retardant waterproof coiled material provided by the invention, if the MOF or the modified MOF material is independently added into the resin material, the problem of poor compatibility of the MOF or the modified MOF material and the resin system cannot be avoided. According to the invention, a microcapsule technology is creatively utilized to polymerize polysiloxane on the surface of the MOF material, so that not only can the problem of dispersion of the MOF material be effectively solved, but also the compatibility of polysiloxane and the flame-retardant characteristic of organic silicon are utilized to promote formation of carbon at high temperature by utilizing phosphorus, and the thermal stability of a carbon layer is improved by utilizing silicon; therefore, the purpose of synergistic flame retardance is achieved.

The invention relates to the technical field of rubber, and discloses low-temperature-resistant rare earth butadiene rubber and a preparation method thereof. Phosphorus-containing quaternary ammonium salt modified polyurethane, polyethoxylene ether modified phenolic resin, rare earth butadiene rubber and sulfur are added into an internal mixer to be mixed and then vulcanized, and the low-temperature-resistant rare earth butadiene rubber is obtained. In the phosphorus-containing quaternary ammonium salt modified polyurethane, silicon-oxygen bonds enable the rubber to maintain stability at low temperature, so that the low-temperature-resistant effect of the rubber is improved; polyurethane and a rubber molecular chain form an interpenetrating polymer network, so that the mechanical property of the rubber is improved; due to the soft segment chain of polyurethane, the rubber has better toughness at low temperature, and the low temperature resistance of the rubber is improved; an ether bond in polyoxyethylene ether has flexibility and stability, so that the rubber is not easy to crystallize or cure at low temperature; phosphorus, silicon and sulfur elements are used together to generate a synergistic flame-retardant effect, so that the flame retardance of the rubber is improved; the phenolic resin plays a reinforcing role in the rubber, so that the mechanical property of the rubber is improved.

The invention discloses a plastic inner container full-carbon-fiber winding gas cylinder with high fire resistance and a preparation method of the plastic inner container full-carbon-fiber winding gas cylinder, and belongs to the technical field of hydrogen storage cylinder preparation. The preparation method comprises the following steps that (1) PA6 serves as a base material, a plastic inner container is obtained through an injection molding technology, and a bottle opening is reserved in the top of the plastic inner container; (2) water-borne epoxy resin, a flame-retardant additive, ethanol and a curing agent are mixed to obtain slurry, and the flame-retardant additive is prepared through a reaction of a diamine monomer and bis (2, 3-dibromopropyl) phosphate; and (3) carbon fibers are soaked in the slurry to obtain soaked fibers, the soaked fibers are wound to the outer side of the plastic inner container and are heated and cured to form a fiber winding layer, and a bottle mouth connector is installed at a bottle mouth. The flame-retardant additive added into the slurry can endow the gas cylinder with good fireproof and flame-retardant effects, and can form a compact cross-linked network with the epoxy resin, so that the overall fireproof uniformity, sealing property and deformation resistance of the gas cylinder are improved, and the service life is prolonged.

The invention discloses an automobile static temperature control system of a coupled radiation refrigeration automobile cover and a phase change heat storage module, and belongs to the field of heat management materials. A radiation refrigeration automobile cover covers an automobile, a phase change heat storage module is placed in the automobile, when temperature rises in the daytime, most heat is isolated by the radiation refrigeration automobile cover by reflecting solar radiation, high-density infrared radiation and low thermal conductivity, and when remaining heat enters a compartment, the interior of the compartment is kept in a low-temperature state through constant-temperature absorption of the phase change heat storage module; when the air temperature drops and at night, heat stored by the phase change heat storage module is quickly transmitted to the outside through high-density infrared radiation of the radiation refrigeration car cover, so that the interior of the compartment is in a low-temperature state. Under the dual-function coupling effect, the low-temperature state in a compartment is achieved, automobile starting temperature control energy consumption is reduced, the comfort degree of a human body is improved, and the risks of aging of elements in an automobile and spontaneous combustion of a power battery caused by high temperature are reduced.

The invention discloses a preparation method and application of a flame-retardant conductive aramid fabric, and belongs to the field of functional textiles, the preparation method comprises the following steps: 1) dipping an aramid fabric base material in a solvent to remove oil, and then washing and drying; 2) adding a dopant A, a dopant B and the fabric obtained in the step 1) into a conductive polymer monomer solution, dropwise adding an oxidant solution, reacting at low temperature, washing and drying; and 3) mixing the PDMS main agent, the PDMS curing agent, the diluent and the flame retardant in proportion, immersing the fabric prepared in the step 2) into the mixed solution, stirring at room temperature, and curing at high temperature to obtain the flame-retardant conductive aramid fabric. The flame-retardant conductive aramid fiber fabric prepared by the invention has good conductive and flame-retardant properties, and high-temperature alarm can be realized when the flame-retardant conductive aramid fiber fabric is connected into an alarm circuit.

The utility model discloses an impact-resistant composite cable, which comprises a cable sleeve, a plurality of cable conductors are arranged in the cable sleeve, the cable sleeve comprises a flame-retardant layer, a buffer layer is glued on the outer side of the flame-retardant layer, a filling layer is filled in the cable sleeve, insulating layers are sleeved on the outer sides of the plurality of cable conductors, and the outer sides of the plurality of cable conductors are respectively provided with an insulating layer. The buffer layer is formed by melting and mixing polyurethane and silica gel, a wear-resistant coating is arranged on the outer side of the buffer layer, the filling layer is made of tetrafluoroethylene, and the flame-retardant layer is made of polyvinyl chloride. According to the utility model, the wire in the cable can be prevented from being deformed and damaged due to overlarge impact force, the impact-resistant effect of the cable is improved, the cable can be prevented from being burnt and damaged, the flame-retardant performance of the cable is improved, and the interference of the outside to the cable conductor can be shielded, so that the cable can be used more stably, and the service life of the cable is prolonged. And the use effect of the cable is improved.

The invention provides a heat-conducting vegetable protein-based composition, a heat-conducting vegetable protein adhesive as well as a preparation method and application of the heat-conducting vegetable protein-based composition and the heat-conducting vegetable protein adhesive. The heat-conducting vegetable protein-based composition provided by the invention is prepared by ball-milling raw materials including a heat-conducting filler, modified vegetable protein and (3-(methacrylamido) propyl) trimethyl ammonium chloride in a mass ratio of 1: (0.3-5): (0.03-1) for 15-25 hours. The heat-conducting vegetable protein adhesive comprises the following raw materials in percentage by weight: 6-20% of the heat-conducting vegetable protein-based composition and 3-8% of a cross-linking agent, and further comprises 0.1-3% of a flame-retardant reinforcing agent on the basis of the heat-conducting vegetable protein-based composition and the cross-linking agent. The heat-conducting vegetable protein adhesive provided by the invention adopts the heat-conducting vegetable protein-based composition, has good cementing performance and water resistance, also has good heat conductivity, flame retardance and mildew resistance, is beneficial to preparation of multifunctional materials, and is beneficial to industrial application, especially in the field of artificial board industry.

The invention relates to the technical field of solid waste resource utilization, in particular to an anti-corrosion and flame-retardant alkyd primer and a preparation method thereof, and solves the problems that phosphorus-rich high manganese steel slag powder cannot be utilized on a large scale with high added value in the prior art; the content of P2O5 or MnO in common steel slag is low, and the processed steel slag has certain corrosion resistance and does not have flame retardance (non-high temperature resistance); most conventional anticorrosive fillers are iron oxide red powder, and the iron oxide red powder gradually becomes a main raw material of a new energy battery at present, so that the iron oxide red powder for the anticorrosive fillers is low in yield and high in price; and phosphorus-rich high-manganese steel slag or general steel slag has strong alkalinity, so that the alkyd resin can be quickly condensed. The problems are solved, so that the production cost of the existing single-component alkyd primer is reduced, the integration of corrosion resistance and flame retardance of the single-component alkyd primer is realized, and meanwhile, the phosphorus-rich high-manganese steel slag powder is fully utilized to realize high additional value and carbon reduction targets.

The invention belongs to the technical field of epoxy resin, and particularly relates to a flame-retardant epoxy resin system, application thereof and a pultrusion composite material. The flame-retardant epoxy resin system provided by the invention comprises a material A and a material B which are independently subpackaged, the material A comprises the following components in parts by mass: 70 parts of flame-retardant epoxy resin; 22 to 26 parts of epoxy diluent; 5-7 parts of a toughening agent; the material B comprises the following components in parts by mass: 95-97 parts of an anhydride curing agent; 0.3 to 2 parts of accelerant; 0.5 to 1.5 parts of an antioxidant; and 0.1 to 0.6 part of a release agent. The material A and the material B in the flame-retardant epoxy resin system provided by the invention select proper components and mass ratios of the components, so that the pultrusion material product has a flame-retardant effect while the modulus advantage, the lightweight characteristic, the high fiber volume content and the excellent mechanical property requirements of the pultrusion material product are maintained, and the flame-retardant epoxy resin system can be suitable for places with relatively high fireproof grades.

The invention provides a high-strength high-toughness low-smoke halogen-free flame-retardant rat-proof cable sheath material and a preparation method thereof, and the cable sheath material comprises the following raw materials: 80.0-100.0 parts of a polymer matrix, 80.0-100.0 parts of an inorganic flame retardant, a functional biomass rat-proof agent, 2.0-4.0 parts of a vulcanizing agent and 0.5-1.0 part of a vulcanization accelerator, wherein the functional biomass rat-proof agent is prepared from bio-based dihydric alcohol, bio-based diisocyanate and capsaicin through a one-pot method, and the cable sheath material is obtained by adding the raw materials into an extruder in proportion for melting, blending and extruding and then carrying out cooling curing, traction, grain-sized dicing and drying. The obtained cable sheath material has high strength, high toughness, high flame retardance and long-acting rat-proof performance, and meets the requirements of high mechanical property, flame retardance and long-acting rat-proof performance of materials in the field of cables.

The invention belongs to the field of functional film material preparation, and particularly relates to a high-toughness weather-resistant barrier film and an in-situ cross-linking preparation method and application thereof.The high-toughness weather-resistant barrier film is prepared by dispersing two-dimensional layered mineral nanosheets in water and stirring the two-dimensional layered mineral nanosheets to obtain nanosheet suspension liquid; slowly adding biomacromolecular polysaccharide, stirring until the biomacromolecular polysaccharide is completely dissolved, and adding a plasticizer to obtain a membrane casting solution; pouring the film casting solution into a mold, and drying to obtain a film precursor; the film precursor is soaked and cross-linked in a metal ion salt solution coagulating bath, washing and drying are performed after cross-linking are completed, and the high-toughness weather-resistant barrier film is obtained, the composite film is good in mechanical strength, has flame retardance and gas barrier performance and can be applied to flame retardance and storage and fresh keeping of food, and the storage time of the food is prolonged; the preparation method is simple, low in cost, suitable for large-scale popularization, wide in market prospect and friendly to application environment.

The invention belongs to the technical field of building boards, and provides an A-grade fireproof light-weight high-sound-insulation building board which comprises a first laminate, a damping layer and a second laminate, the first laminate, the damping layer and the second laminate are sequentially connected in a bonding mode, the damping layer is made of polyurethane and a flame retardant, and the flame retardant is added into the polyurethane in a high-density low-foaming manufacturing process; the first laminate and the second laminate are inorganic homogeneous building boards with different materials and densities, a flame retardant is added into polyurethane in a high-density low-foaming manufacturing process to form a raw material for manufacturing the damping layer, so that the damping layer of the building board has elasticity, flame retardance and viscosity; and the plates made of different materials are selected as the first layer plate and the second layer plate, the performance advantages of various plates can be fully utilized, performance complementation is achieved, and therefore the comprehensive performance of the whole building plate is improved.

The invention relates to a flame-retardant sponge based on a biomass flame retardant and a preparation method of the flame-retardant sponge. The flame-retardant sponge is prepared from the following components in parts by weight: 90 to 110 parts of polyether polyol, 50 to 90 parts of MDI (methylene diphenyl diisocyanate) or TDI (toluene diisocynate), 0 to 0.5 part of chain extender, 0.05 to 4 parts of efficient foam stabilizer, 0.05 to 0.5 part of efficient composite catalyst, 0 to 6 parts of external foaming agent, 1 to 5 parts of water and 0.1 to 2 parts of biomass flame retardant, the preparation method of the biomass flame retardant comprises the following steps: reacting sodium phytate with hydroxypropyl-beta-cyclodextrin, carrying out suction filtration, washing, and carrying out vacuum drying to obtain the biomass flame retardant of the phytic acid cyclodextrin ester. The preparation method has the advantages that the biomass material-grade halogen-free flame retardant is added in synthesis of a polyurethane flexible foam material, and phytic acid cyclodextrin ester with flame retardance is anchored to PU, so that a durable flame-retardant effect is achieved; the flame retardant is free of pollution and harm, the addition amount of the biomass flame retardant is small, the performance of the PU is not affected, and the effect of being free of smoke poisoning can be achieved.

The invention relates to the technical field of coatings, and discloses a preparation process of a halogen-free flame-retardant solid powder coating, which comprises the following steps: adding adamantane modified phenolic resin, adamantane modified carbon nanotubes, talcum powder, a coalescing agent propylene glycol and a defoaming agent BYK088 into a high-speed mixer for mixing, feeding into a screw extruder, and carrying out melt extrusion, charging, melting and discharging through the screw extruder to obtain the halogen-free flame-retardant solid powder coating. And tabletting the molten material by a tablet press, crushing, feeding into a pulverizer, pulverizing and grading, separating out superfine powder, impurities and the like by a cyclone separator, and separating out a product by a powder sieve, thereby obtaining the halogen-free flame-retardant solid powder coating. A silicon element and a sulfur element in the halogen-free flame-retardant solid powder coating have a better flame-retardant effect, a cardanol group in adamantane modified phenolic resin has a better antibacterial effect and is synergistically antibacterial with quaternary ammonium salt, and phenolic resin has a large number of reaction sites, so that the substitution degree of quaternary ammonium salt is improved, and the antibacterial effect of the quaternary ammonium salt is better.

The utility model relates to the technical field of PVC (polyvinyl chloride) pipes, and discloses a high-temperature-resistant flame-retardant macromolecular PVC pipe which comprises an inner pipe body, a high-temperature-resistant layer is fixedly connected to the surface of the inner pipe body, a heat-insulating layer is fixedly connected to the surface of the high-temperature-resistant layer, an outer pipe sleeve is arranged on the surface of the heat-insulating layer, a fireproof layer is coated on the surface of the outer pipe sleeve, and the fireproof layer is coated on the surface of the outer pipe sleeve. The flame retardant is arranged in the outer pipe sleeve, when flame burns into the outer pipe sleeve through the outer pipe sleeve, the flame retardant can effectively conduct flame retardance, and under the action of the high-temperature-resistant layer and the heat insulation layer, the temperature inside and outside the pipe can be effectively isolated; therefore, the liquid flowing in the pipe is prevented from being influenced by the temperature outside the pipe, the heat preservation effect on the liquid in the pipe is improved, and the high-temperature-resistant layer and the heat insulation layer have the flame-retardant effect.

The invention discloses a porous electromagnetic shielding composite material with electromagnetic shielding and flame-retardant properties and a preparation method and application thereof, and relates to the technical field of electromagnetic shielding and flame retardance. The porous electromagnetic shielding composite material comprises a PDMS / DNDOPO flame-retardant outer layer and a copper sulfide porous conductive skeleton core from outside to inside. According to the invention, the conductive skeleton is coated with the flame-retardant polymer coating, so that conductive loss and multiple reflection loss of electromagnetic waves can be realized, and a flame-retardant effect is achieved.

The application discloses the kitchen and bathroom waterproof technology field, concretely is a kind of seamless waterproof construction method based on coating and material combination between kitchen and bathroom, including specific steps as follows: when carrying out floor waterproof construction, floor must be pitched to the direction of floor drain and must be pitched before brushing waterproof coating, also guarantee that the elevation of its floor is 2cm-3cm lower than the elevation of adjacent indoor floor, to prevent water backflow to the outside of kitchen and bathroom, the drainage slope of its floor drain edge outward 5cm should be 3%-4%, when construction, floor drain is center to radiation in all directions, find slope, scrape with scraping ruler, and surface is required to be smooth, no depression, to not accumulate water, and position is far from doorway, to ensure that doorway is highest point after pitching, the application carries out waterproof construction on the wall surface and top surface between kitchen and bathroom, then water penetration into wall surface and top surface can be avoided, so that wall surface and top surface can be avoided to be damp, mildew and other phenomena.

The invention relates to the field of paperboard, in particular to a multi-layer composite waterproof and explosion-proof corrugated paperboard and a preparation method thereof. An explosion-proof film layer, a foam board layer, a reinforcing fiber mesh layer and a corrugated paperboard layer are sequentially bonded with a green flame-retardant adhesive to obtain a corrugated paperboard, and a modified halloysite nanotube and a composite waterborne polyurethane are compounded as a protective coating to be coated on the corrugated paperboard; cross-linked oxidized starch is compounded with the composite waterborne polyurethane and the modified halloysite nanotube to obtain a flame-retardant adhesive; the halloysite nanotube is modified by firstly amminating its surface with 3-aminopropyltriethoxysilane, and then graphene oxide is loaded on its surface by electrostatic self-assembly to obtain a hybrid flame-retardant filler, namely, a composite halloysite nanotube, which is then modified with aspartic acid and then reactively grafted with a salicylaldehyde Schiff base flame retardant containing a hydroxyl group.

The present invention provides a high temperature resistant film, the high temperature resistant film comprises a TPU layer and a dry PU coating which are stacked in sequence; or, the high temperature resistant film comprises a TPU layer, a high temperature resistant PU layer and a dry PU coating which are stacked in sequence; or, the high temperature resistant film comprises a TPU layer, a high temperature resistant PU layer, a TPU layer and a dry PU coating which are stacked in sequence; or, the high temperature resistant film comprises a TPU layer, a knitted sandwich cloth layer, an adhesive layer and a TPU layer which are stacked in sequence; or, the high temperature resistant film comprises a TPU layer, a knitted sandwich cloth layer, an adhesive layer, a high temperature resistant PU layer and a TPU layer which are stacked in sequence; the raw materials for preparing the TPU layer include thermoplastic polyester, polyaryletherketone, inorganic nanoparticles, a film-forming aid and an antioxidant. The high temperature resistant film of the present invention has excellent high temperature resistance, wear resistance and scratch resistance, and can be used for the back plate of a mobile phone case.

The utility model relates to the technical field of wires and cables, in particular to a low-smoke halogen-free flame-retardant special wire and cable, which comprises a wire core and a cable base layer, the outer wall of the wire core is connected with the cable base layer, a protection structure is arranged on the outer side of the cable base layer, and the protection structure comprises a supporting assembly. The inner wall of the supporting assembly is bonded with the cable base layer, and the outer wall of the supporting assembly is bonded with the protection assembly. The supporting assembly is made of butadiene rubber and has good cold resistance, wear resistance and rebound resilience, the outer wall of the supporting assembly is bonded with the protection assembly, the protection assembly is made of a silicon rubber material, the silicon rubber material is a rubber material with excellent elasticity and compressibility, and when extruded by external force, the supporting assembly is not prone to deformation. Through the high elasticity of the protection assembly and the supporting assembly, the mechanical energy of external force is buffered, and the situation that the wire core is damaged and broken is avoided.

The invention relates to a polymer coating with a thermal switch function and application of the polymer coating in a secondary lithium battery pack. The polymer coating comprises a temperature-sensitive layer and a porous thermal insulation layer; wherein the temperature-sensitive layer is formed by N-isopropylacrylamide copolymer, the thickness of the temperature-sensitive layer is 50-200 [mu] m, and the temperature-sensitive layer accounts for 30-70% of the total mass of the coating, and the porous thermal insulation layer is formed on the basis of polyester terephthalate, the thickness of the porous thermal insulation layer is 100-200 [mu] m, and the porous thermal insulation layer accounts for 30-70% of the total mass of the coating. The pore diameter of the polymer coating can change along with the change of the external temperature, and the functions of heat preservation at low temperature and rapid heat dissipation at high temperature can be achieved. The invention also provides an application example of the polymer coating in a secondary lithium battery pack.

The invention relates to a halogen-free flame-retardant PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) composite material with a high recovery ratio, which comprises the following components in parts by mass: 30-50 parts 5 to 25 parts by mass of ABS; 30 to 58.2 parts by mass of PC / ABS; 5-15 parts by mass of a flame retardant; 0.2 to 0.8 part by mass of an antioxidant; 0.3 to 0.8 part by mass of a flow modifier; 0.3 to 1.2 parts by mass of an anti-dripping agent; the environment-friendly PC / ABS composite material has the beneficial effects that the material does not contain dangerous halogen compounds, the risk of secondary pollution can be reduced when the material is recycled, a high-proportion recycled material (greater than or equal to 30%) is used, so that the material has higher environment-friendly performance, and the material takes PC / ABS as a main body, so that the production cost is reduced, and the environment-friendly PC / ABS composite material is suitable for industrial production. Wherein the proportion of the added PC / ABS crushed material is larger than or equal to 30%, the PC / ABS material has certain mechanical performance and flame retardance (1.0 mm V-0) and also has high impact strength (larger than 40 kJ / m < 2 >), the application range of the PC / ABS material can be effectively widened, and PC / ABS is PIR, is a water gap, an auxiliary board, a defective product and the like generated during injection molding of a product in a factory and is few in impurity and more stable in quality.

The utility model discloses a high-strength conveying belt, which belongs to the technical field of conveying belts and comprises a first wear-resistant layer, a first fireproof layer, a reinforced flame-retardant structure, a second fireproof layer and a second wear-resistant layer which are sequentially arranged from top to bottom, and the reinforced flame-retardant structure comprises a first strength layer, a supporting layer and a second strength layer. The upper surface of the first strength layer is connected with the first fireproof layer, the lower surface of the second strength layer is connected with the second fireproof layer, the supporting layer comprises a plurality of supporting grids, and diatom rods are arranged in the supporting grids. According to the high-strength conveying belt, the toughness and the impact resistance of the conveying belt can be enhanced, the service life of the conveying belt can be prolonged, a good flame retardant effect can be achieved, and fire disasters are prevented.

The invention belongs to the field of organic functional molecules and organic polymer functional materials, and particularly relates to a reactive aggregation luminescent flame-retardant organic functional material and a preparation method thereof. A flame-retardant group DOPO is introduced into molecules containing an aggregation-induced emission TPE group, the flame-retardant group DOPO which simultaneously contains the TPE group with aggregation-induced emission performance and a flame-retardant function in the structure is designed and synthesized, and the flame-retardant group DOPO has good flame-retardant performance while the aggregation-induced emission function is guaranteed.

The invention discloses a titanium plate elastic grinding block material and a titanium plate elastic grinding block. The titanium plate elastic grinding block material is prepared from, by mass, 20%-25% of boron modified phenolic resin, 20%-25% of cardanol modified phenolic resin, 5%-8% of diamond, 10%-15% of silicon carbide, 5%-10% of white corundum, 5%-10% of potassium titanate whiskers, 5%-10% of basic magnesium sulfate whiskers and 8%-18% of filler. According to the titanium plate elastic grinding block material, the boron modified resin is selected, so that the temperature resistance of the grinding block can be improved, and the basic magnesium sulfate whiskers with flame retardance and cooling and heat dissipation performance are added, so that the high-temperature working performance of the grinding block is improved; moreover, cardanol modified phenolic resin is selected, so that the toughness and impact resistance of the grinding block can be improved, and potassium titanate whiskers are added, so that the strength and toughness of a matrix are improved, the holding force on diamond is improved, the wear resistance of a product is improved, and the cost performance is improved.