42results about How to "High flame retardant efficiency" patented technology

The invention relates to a fluoride-free flame-retardant HIPS (high impact polystyrene) resin composition and a preparation method thereof. The composition comprises the following components in parts by weight: 62-75 parts of HIPS resin; 5-15 parts of polyphenyl ether resin; 10-18 parts of a brominated aromatic flame retardant; 3-8 parts of a styrene toughening agent; 1.0 to 2.0 parts of an antimony flame retardant synergist; 1-3 parts of a ceramic carbonizing agent; 1-3 parts of a polyol charring agent; 0.2 to 0.5 part of an antioxidant; 0.1-0.5 part of a light stabilizer; and 0.5 to 1.0 part of lubricant. The preparation method comprises the following steps: stirring and fully mixing the raw materials in a high-speed mixer, and carrying out material melting, shearing, homogenizing, bracing, cooling and pelletizing under the conveying, shearing and mixing of screws by a twin-screw extruder to obtain the fluoride-free flame-retardant HIPS resin composition. The invention solves the problem that the traditional flame-retardant HIPS resin needs an anti-dripping agent PTFE for synergistic flame retardance but cannot meet the PFAS prohibition. The material can be widely applied to the fields of display rear shells, chargers, electric control boxes, electric appliance shells and the like.

The invention discloses an anti-aging and anti-electromagnetic shielding cable and a preparation method thereof, and belongs to the field of high voltage and the technical field of materials, the anti-aging and anti-electromagnetic shielding cable structurally contains a polyurethane-polyethylene copolymer and a flame-retardant and anti-electromagnetic sheet composite carrier, contains a polyurethane chain segment which is connected with a polyethylene main chain through a covalent bond, has no interface separation risk, and has good anti-aging and anti-electromagnetic shielding effects. Polyethylene is resistant to acid, alkali and salt mist, a carbamate group in a polyurethane chain segment can capture free radicals generated by photooxidation and thermal oxidation of polyethylene, aging is delayed from the molecular level, and the flame-retardant anti-electromagnetic sheet composite carrier endows the cable with good aging resistance and anti-electromagnetic shielding characteristics; the lamellar structure of the sheet-shaped carrier can block heat transfer and combustible volatilization, and the lamellar structure and the sheet-shaped carrier synergistically improve the flame-retardant efficiency; the introduction of the flaky composite carrier not only endows functional characteristics, but also can be used as a rigid reinforcement phase, so that the wear resistance and the extrusion resistance of the cable are improved, and the loss of the cable in the dragging and construction processes is reduced.

The invention relates to a fluoride-free flame-retardant polyester reinforced resin composition as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The resin composition comprises the following components in parts by weight: 15-55 parts of PBT resin; 0 to 20 parts of PET resin; 10 to 50 parts of glass fiber; 10 to 15 parts of brominated aromatic flame retardant; 1-3 parts of a compatilizer; 1-5 parts of a toughening agent; 1.5 to 3.0 parts of an antimony flame retardant synergist; 2-5 parts of a high carbon residue charring agent; 0.2 to 0.5 part of an antioxidant; and 0.5 to 1.0 part of a lubricant. Compared with the prior art, the fluorine-free flame-retardant polyester reinforced resin prepared by the invention not only has excellent mechanical properties and good processability, but also has lower cost and wide application scenarios.

The invention provides a flame-retardant antistatic nylon fiber with a skin-core structure and a preparation method of the flame-retardant antistatic nylon fiber, and belongs to the technical field of nylon fibers. The flame-retardant antistatic nylon fiber comprises an antistatic nylon skin layer and a flame-retardant nylon core layer, the outer surface of the flame-retardant nylon core layer is coated with the antistatic nylon skin layer, the antistatic nylon skin layer comprises a nylon 6 matrix and an antistatic agent, and the antistatic agent is aniline modified zirconium phosphate; wherein the aniline modified zirconium phosphate is obtained by carrying out in-situ polymerization on aniline monomers between stripped zirconium phosphate layers. The flame-retardant antistatic nylon fiber is obtained through sheath-core composite melt spinning. According to the invention, the antistatic agent and the flame retardant are efficiently and stably introduced into the nylon matrix, and the synergistic effect of the antistatic agent and the flame retardant is realized, so that the fiber has better spinnability and mechanical property, and meanwhile, the long-term effect and durability of the function are ensured.

The application discloses a preparation method of a P / N / Si multi-element reactive halogen-free flame retardant, specifically comprising the following steps: preparing DOPO grafted 3-chloropropyl trimethoxysilane, which is denoted as PPTMS; preparing a cage-like POSS containing DOPO, which is denoted as PSC; mixing the PSC with toluene to obtain a PSC solution; uniformly mixing maleimide MI with toluene, dropwise adding the PSC solution into the maleimide MI solution to perform a condensation reflux reaction, and performing vacuum rotary evaporation to obtain the P / N / Si multi-element reactive halogen-free flame retardant. The phosphorus-containing monomer, the nitrogen-containing monomer and the silicon-containing monomer in the flame retardant are covalently bonded, and the multi-elements in the molecule exist in the form of a collection acid source, a carbon source, a gas source and a ceramicization, wherein the phosphorus-containing monomer is dehydrated into carbon, the nitrogen-containing monomer releases non-combustible gas to dilute the gas phase, and the silicon-containing monomer forms a dense ceramic barrier layer to improve the triple synergy of carbon residue strength and anti-dripping property, thereby greatly improving the flame retardant efficiency.

The present application relates to a kind of multifunctional composite fabric with wave-absorbing, flame-retardant, ultraviolet absorption and a preparation method thereof.In the present application, by material intrinsic design and structure control, the synergistic technology of realizing wave-absorbing, flame-retardant, ultraviolet-resistant and other multiple functions integrated in fabric substrate under low filler addition amount is obtained.

The present application relates to a kind of high flame-retardant low-toxicity environmental protection computer cable and its preparation method, belong to computer cable technical field.The insulating layer and / or sheath layer of the cable uses environmental protection toughening flame-retardant composite material, it is with polyolefin resin as matrix, compound modified nano-aluminum hydroxide with KH560 silane coupling agent, melamine cyanurate, gradient compound ethylene-vinyl acetate copolymer and maleic anhydride graft polyolefin, by limiting core component ratio and key parameter, realize high flame-retardant, low-toxicity environmental protection and low-temperature toughness Synergistic unity.The present application process is simple and easy industrialization, applicable to computer room, automation control system, instrument signal transmission and other scenes, practicality is strong.

This invention provides a halogen-free flame-retardant UV-moisture-curing polyurethane conformal insulating resin and its preparation method, belonging to the field of polymer materials technology. The conformal insulating resin of this invention is prepared from the following raw materials in parts by weight: 100 parts HDI trimer, 50-120 parts organosilicon-modified polyol, 10-40 parts chain extender containing a hindered phenol-phosphate structure with bifunctional groups, 15-45 parts hydroxyl-containing acrylate, 2-10 parts photoinitiator, 0.1-1.5 parts polymerization inhibitor, and 20-80 parts reactive diluent. This invention embeds hindered phenol-phosphate synergistic flame-retardant groups into the polyurethane backbone, achieving a UL94V-0 rating and limiting oxygen index ≥32% under halogen-free conditions; the UV-moisture dual-curing mechanism increases the crosslinking degree in the shaded area from 65% to 95%, significantly improving the integrity of the insulation protection.

This invention discloses a PVC cable sheath material, comprising the following components by weight: 100 parts PVC resin; 26-40 parts cold-resistant rubber; 45-53 parts cold-resistant plasticizer; 45-52 parts filler; 10-26 parts flame retardant; 9-15 parts heat stabilizer; 0.5-1.2 parts antioxidant; 2.0-3.5 parts lubricant; and 0-1.2 parts colorant. This invention also discloses a method for preparing the PVC cable sheath material and a cold-resistant and flame-retardant cable. The PVC cable sheath material of this invention has excellent cold resistance and flame retardancy, and can meet the requirements for cable sheath use in extremely cold environments of ~40℃ and below.

This application provides a charging pile sheath composite material, made from at least the following raw materials in parts by weight: 60-80 parts of thermoplastic polyurethane elastomer, 5-15 parts of polyketimide, 10-20 parts of halogen-free flame retardant additives, and 1.5-3.0 parts of functional additives. This application also provides a method for preparing the charging pile sheath composite material, comprising the following steps: S1, melt-blending polyketimide with thermoplastic polyurethane elastomer or thermoplastic polyester elastomer, and granulating to obtain a pre-dispersed masterbatch; S2, melt-blending the pre-dispersed masterbatch, the remaining thermoplastic polyurethane elastomer, halogen-free flame retardant additives, and functional additives, and granulating to obtain the charging pile sheath composite material. The charging pile sheath composite material and preparation method provided in this application, by optimizing the raw material composition and ratio and the two-step processing technology, utilizes the dispersing and self-lubricating properties of polyketimide, combined with the flame-retardant synergistic effect of the halogen-free flame retardant additives, to improve the flame-retardant and wear-resistant properties of the charging pile sheath composite material.

The invention discloses sec-ethyl phosphate as well as a preparation method and application thereof, and belongs to the technical field of synthesis of flame retardants. Tri (2-ethoxyl) isocyanurate, phosphorus oxychloride and an alcohol compound are used as raw materials, the cyan phosphate is prepared through three-step reaction of preparing phosphoryl chloride diester, refining the phosphoryl chloride diester and synthesizing the cyan phosphate, the molecular structure contains a phosphate group and a triazine ring conjugated structure, and a carbon source, a gas source and an acid source are integrated. The thermal decomposition temperature of the sec phosphate is greater than or equal to 320 DEG C, the UL94V-0 level flame retardant standard can be reached by adding 12%-15% of sec phosphate into a high polymer material, and the sec phosphate has the characteristics of high flame retardant efficiency, good compatibility, strong migration resistance, excellent thermal stability, environmental protection and low toxicity; the synthetic preparation method is stable in process, easy in condition control and high in product purity, can be widely applied to flame-retardant modification of high polymer materials such as polyvinyl chloride, polyurethane and epoxy resin, and has important industrial application value.

The invention discloses a high-flame-retardant anti-dripping exposed TPO waterproof roll material and a preparation method thereof, and relates to the technical field of high polymer materials. The waterproof roll material comprises the following raw materials: 30-40 parts of thermoplastic resin; 20 to 30 parts of a POE elastomer; 25 to 35 parts of a flame retardant; 5-10 parts of a filler; 1-5 parts of a lubricant; 0.5 to 2 parts of an antioxidant; and 5-10 parts of an anti-dripping auxiliary agent. The preparation method comprises the following steps: putting the thermoplastic resin, the POE elastomer, the filler, the lubricant, the antioxidant and the organic silicon anti-dripping aid into a high-speed kneading machine for mixing, and then feeding the mixture into a double-screw extruder for granulation to obtain the high-flame-retardant and anti-dripping TPO waterproof roll material. The waterproof roll material is safe to store, can be subjected to hot welding, is easy to process, is environment-friendly and can be recycled.

The application discloses a kind of homogeneous heat-insulating materials and preparation method thereof, belong to heat-insulating material technical field.The material of preparation includes: (1) the mixture of graphene oxide aqueous solution and metal salt, add sodium hydroxide or potassium hydroxide solution to obtain graphene oxide composite inorganic flame retardant solution;(2) to graphene oxide composite inorganic flame retardant solution join surface modifier, obtain the modified graphene oxide composite inorganic flame retardant of powdery;(3) 50-60 parts polyether polyol, 40-50 parts polyester polyol, 3-5 parts uniform foaming agent, 2-3 parts catalyst, 15-18 parts foaming agent, 80-100 parts modified expandable graphite, 160-220 parts modified graphene oxide composite inorganic flame retardant, 15-20 parts organic phosphorus flame retardant and 0.9-1.5 parts water are mixed to obtain mixed liquid;(4) 100-110 parts diisocyanate is added to mixed liquid, after stirring, pour into mould to carry out foaming and curing, i.e.get.The method process is simple, production cost is low and flame-retardant performance, heat-insulating performance, mechanical property and thermal stability are all higher.

The invention discloses an efficient flame-retardant normal-temperature curing epoxy resin composition and application thereof, and belongs to the technical field of flame-retardant adhesives. The epoxy resin composition comprises a component A and a component B. The component A comprises epoxy resin, a flame retardant, a diluent, a silane coupling agent, an antifoaming agent and a filler. The component B comprises a curing agent and a curing accelerator; the flame retardant comprises a main flame retardant and a liquid flame retardant. According to the epoxy resin composition provided by the invention, the phosphorus-containing epoxy resin and the liquid phosphate flame retardant are synergistically combined, so that the flame-retardant efficiency is improved, meanwhile, relatively high Tg can be maintained, the viscosity of a resin system is reduced, and the operability is improved. The epoxy resin composition can be applied to structural adhesives and potting materials in the fields of automobile parts, aviation parts, electronic components, transformers, small mutual inductors, sensors and the like, and also can be applied to epoxy resin coatings.

The invention discloses an epoxy resin composition containing a phosphorus-containing flame-retardant curing agent as well as a preparation method and application of the epoxy resin composition, and belongs to the technical field of preparation of flame-retardant epoxy resin compositions. The epoxy resin composition comprises the following components in parts by weight: 80-100 parts of an epoxy resin matrix, 10-30 parts of a phosphorus-containing flame-retardant curing agent, 6-60 parts of a curing agent, 0.1-0.3 part of an accelerant, 10-30 parts of a synergistic flame retardant, 40-60 parts of filler and the like. The phosphorus-containing flame-retardant curing agent is prepared from phenyl phosphoryl dichloride and a bisphenol compound through a polymerization reaction. The phosphorus-containing flame-retardant curing agent with phenolic hydroxyl reaction active groups is prepared by using low-cost phenylphosphoryl dichloride as a raw material and is matched with an existing flame-retardant system, so that the contradiction between the flame-retardant property and the physical property (mainly Tg) of an epoxy resin material is solved; and the flame retardant grade of V-0 and the higher glass transition temperature can be achieved when the addition amount of the flame retardant is lower.

This invention relates to the field of flame-retardant composite materials, specifically to flame-retardant composite materials based on the synergistic reinforcement of talc and graphene sheets and their applications. It addresses the problem that existing polymer materials struggle to simultaneously achieve reinforcement, flame retardancy, and lightweighting, and require large quantities of high-performance additives. The process involves first mixing talc sheets, graphene, a composite flame retardant, and a dispersant in a high-speed mixer, then cooling to room temperature to obtain a premix. A polymer matrix is ​​then added to a twin-screw extruder. The premix and other auxiliary additives are added through a side feed port, melt-blended, water-cooled, air-dried, and pelletized to obtain composite material particles. These particles are then vacuum-dried and injection-molded to obtain the flame-retardant composite material. The flame-retardant composite material possesses excellent flame-retardant and mechanical properties, exhibiting outstanding overall performance and being more suitable for industrial production.

The invention relates to the technical field of high polymer materials, in particular to a high-performance flame-retardant weather-resistant smoke-suppression PC composite material and a preparation method thereof.The high-performance flame-retardant weather-resistant smoke-suppression PC composite material is prepared from, by weight, polycarbonate resin, a phosphorus-based flame-retardant synergist, a silicon-based flame-retardant synergist, a smoke suppressant, an opacifier, a weather-resistant agent, an antioxidant and a lubricant. The nano titanium dioxide and the organic weather-resistant agent are bridged through siloxane, so that weather-resistant synergy of ultraviolet shielding, energy quenching and surface protection is realized; pC is chemically bonded by a phosphorus flame retardant to provide a flame retardant function, and a phosphorus-silicon ceramic layer is formed by the phosphorus flame retardant and polyborosilicate siloxane to enhance flame retardance; and a boron-zinc-molybdenum smoke inhibitor is introduced, a glass body sealing layer is formed on the basis of catalytic char formation, and laser engraving smoke is efficiently inhibited. Functional integration of all the components is realized through interface anchoring and reaction crosslinking, and finally the flame-retardant, weather-resistant and smoke-suppressing PC composite material is obtained.

The invention discloses modified graphite, a high-flame-retardant MC nylon material, a lightweight wearing plate and an air spring. The modified graphite material is modified by sequentially oxidizing and reducing a powdery graphite material to form reduced graphite oxide and then introducing an amino flame-retardant group and a phosphate flame-retardant group onto the reduced graphite oxide. The high-flame-retardant MC nylon material comprises caprolactam, a catalyst, an activating agent and a modified graphite material. The light-weight wearing plate comprises a wear-resisting plate which is integrally formed by adopting a high-flame-retardant MC nylon material, and the wear-resisting plate is provided with a T-shaped metal insert, an exhaust groove and a circular ring backstop. The air spring comprises a high-strength high-flame-retardant lightweight wearing plate mounted above an auxiliary spring, a high-strength lightweight composite material upper cover plate mounted at one end of an air bag, and a PAI-Si high-wear-resistant lubricating coating sprayed on a metal plate and / or the wearing plate. The dry friction coefficient of the composite upper cover plate and the high-strength and high-flame-retardant lightweight wearing plate in an oil-free and maintenance-free state meets the requirement of being smaller than 0.1.

The application provides a high-temperature-resistant flame-retardant plastic particle and a preparation method thereof, and belongs to the field of high-molecular organic compounds. The high-temperature-resistant flame-retardant plastic particle contains the following components: polycarbonate, acrylonitrile-butadiene-styrene copolymer resin, microcapsule ammonium polyphosphate, a carbon source, modified halloysite nanotubes, a toughening agent, an antioxidant, a lubricant and an anti-dripping agent. The modified halloysite nanotubes are obtained through grafting reaction of halloysite nanotubes with a coupling agent with an epoxy group. The composite material provided by the application aims to meet the dual requirements of material flame-retardant safety and structural reliability in daily use scenarios (especially household appliances). In terms of flame retardation, a stable and dense expansion carbon layer can be formed during combustion to effectively isolate heat and oxygen, so that UL94 V-0 grade flame retardation is achieved, and the smoke density is significantly reduced. In terms of mechanical properties, good impact strength, rigidity and dimensional stability are maintained, so that the assembly and use requirements of household appliance shells and internal structural parts are met.

The present application relates to a kind of single-component intumescent flame retardant with layered structure and super strong carbon formation ability and its preparation method, the method of the present application first 3,4-dihydroxybenzaldehyde and organic diamine rich in benzene ring or nitrogen heterocycle are reacted to prepare intermediate product, then intermediate product and phytic acid are organically combined, by esterification crosslinking reaction, construct macromolecular crosslinking network, prepare the single-component intumescent flame retardant with layered structure and super strong carbon formation ability finally.Compared with general ammonium phytate flame retardant, the flame retardant prepared in the present application has wash resistance, and can form super strong intumescent dense and hard carbon layer when burning.Polymer materials can be simultaneously endowed with excellent flame retardant properties and flame-retardant durability.In addition, since the flame retardant of the present application has layered structure, it can be more uniformly dispersed in polymer, and can significantly improve the mechanical properties of polymer.The preparation process of the flame retardant of the present application is simple, practical, and has very broad application prospect.

The application discloses a kind of high-strength waterproof board and preparation method thereof, it is related to plate technical field.The preparation method of the application includes the following steps: sequentially stack 1 steel plate, 2 base plates, 1 fingerprint-resistant polymer film on 1 fingerprint-resistant polymer film, then heat pressing solidification, after cooling, plate is taken out, and high-strength waterproof board is obtained;Wherein, base plate is prepared from modified kraft paper and modified color paper.The water resistance, fire resistance and bonding strength of the plate are effectively improved by modifying kraft paper with modified phenolic resin, hydrophilic silicon dioxide and other components;The bonding strength, water resistance and fire resistance of the plate are further improved by modifying color paper with melamine, vanillin, flame retardant DOPO, 3,4-dihydroxybenzaldehyde and other components.Therefore, the application has a more extensive application prospect.

The application provides a fireproof early warning flame-retardant fabric, a preparation method and application thereof. The fireproof early warning flame-retardant fabric comprises a fabric substrate, at least one flame-retardant layer and at least one early warning layer coated on the surface of the fabric substrate, wherein the flame-retardant layer comprises a cationic polymer-flame retardant coating unit, the early warning layer comprises a cationic polymer-early warning material coating unit, and the flame retardant and the early warning material are negatively charged. The fabric has low heat release rate and total smoke production, short ignition time, and excellent early warning and heat insulation performance.

The present application relates to functional textile finishing and electromagnetic shielding material technical field, specifically relates to a kind of low resistance-increasing flame-retardant post-processing fluid suitable for metallized polyester conductive cloth.The technical problem that the conductivity and flame retardance are difficult to obtain in the flame-retardant treatment of metallized conductive cloth is solved.The post-processing fluid is composed of halogen-free phosphorus-nitrogen intumescent flame retardant, silicone film-forming agent, metal layer corrosion inhibitor, conductive bridging component, wetting dispersant and deionized water.The post-processing fluid uses the bridging action of silicone coupling agent to make flame-retardant component preferentially enriched on the surface of polyester fiber, and uses trace conductive bridging component to form point-type conductive connection at metal plating micro-gap, thereby reducing the surface resistance increase caused by flame-retardant treatment.

The application discloses a kind of flame-retardant high-flexibility crosslinked polyethylene insulated power cable and preparation method thereof, belong to cable technical field.The inside to outside includes conductor, insulating layer, filling layer, tape layer and sheath layer in proper order.Conductor uses the 5th or 6th soft copper conductor, insulating layer includes polyethylene, ethylene-vinyl acetate copolymer and magnesium hydroxide modified by vinyltriethoxysilane and polybutadiene, filling layer is alkali-free glass fiber rope coated with aluminum hydroxide powder on the surface, prepared by impregnation-extrusion process, sheath layer includes DOPO-PEG and pentaerythritol phosphate ester compounded intumescent halogen-free phosphorus flame-retardant system and organic modified montmorillonite.The application realizes efficient halogen-free flame-retardant by multilayer synergistic flame-retardant design, and has high flexibility and good weather resistance simultaneously.

This application relates to the field of copper clad laminates (CCLs), specifically disclosing a halogen-free low-dielectric resin composition for CCLs and a CCL made therefrom. The halogen-free low-dielectric resin composition for CCLs comprises the following raw materials in parts by weight: 50-70 parts of multifunctional epoxy resin, 10-20 parts of polyurethane-modified epoxy resin, 5-10 parts of terminal epoxy-based silicone oil, 12-25 parts of curing agent, 0.2-1 part of curing accelerator, 15-20 parts of flame retardant, and 15-30 parts of 4-aminomethylbenzoic acid-grafted alumina. The halogen-free low-dielectric resin composition for CCLs of this application and the CCL made therefrom have the advantages of good heat resistance and low dielectric loss.

The invention relates to a flame-retardant smoke-suppression anticorrosive fiber material, a coating, a preparation method of the flame-retardant smoke-suppression anticorrosive fiber material and the coating containing the fiber material, and belongs to the technical field of functional coating materials. The preparation method of the fiber material comprises the following steps: (1) mixing and stirring a flame retardant, an organic solvent and a surfactant to obtain a core layer solution; (2) dispersing polyvinylidene fluoride-trifluoroethylene and inorganic nanoparticles in an organic solvent, and stirring to obtain a shell solution; and (3) simultaneously spinning the core layer solution and the shell layer solution to obtain the fiber material. After the coating of the fiber material is cured on the surface of a base material, a formed coating is a continuous fiber reinforced composite material and has flame-retardant, smoke-suppression, self-repairing and anti-corrosion properties at the same time. The inorganic nanoparticles are introduced into the shell layer and the thermal response type flame retardant is encapsulated in the core layer, so that the chemical activity or toxicity of harmful chemical substances is reduced through chemical adsorption, coordination binding and / or catalytic conversion under a fire or corrosion induction condition, and the flame-retardant smoke suppression, self-repairing and corrosion-resistant properties are synergistically realized.

The application discloses a kind of flame-retardant water-resistant polyether type polyurethane elastomer and preparation method thereof, and relates to the technical field of polyurethane elastomer.The application first prepares boroxin intermediate BOX, then reacts with dimethyl methylphosphonate to obtain reactive phosphorus-containing boroxin flame retardant DMPB, which is introduced into polyurethane elastomer as halogen-free flame retardant.The obtained material has significantly improved limiting oxygen index, reaches UL-94 V-0 level, and has outstanding smoke suppression and toxicity reduction effect;continuous dense carbon layer is formed during combustion, and the mechanical and adhesive properties are excellent, halogen-free, environmentally friendly, water-resistant and stable, suitable for new energy vehicles and electronic components potting and other fields with high requirements for flame retardance and water resistance.

This invention provides a flame retardant for water-based fire-retardant coatings for steel structures, prepared from the following raw materials: urea, phosphoric acid, acidic lignin, and pentaerythritol; the weight ratio of urea, phosphoric acid, acidic lignin, and pentaerythritol is 1:(0.8-1):(0.1-0.5):(0.01-0.05). Applying this flame retardant to water-based fire-retardant coatings for steel structures achieves both moisture resistance and flame retardancy.

The utility model discloses a composite flame -retardant epoxy resin board belongs to epoxy resin board technical field, including board main part, the board main part includes glass fiber resin base, one side of glass fiber resin base is pasted with the reinforcing layer, the other side of reinforcing layer is pasted with main flame -retardant layer, the other side of main flame -retardant layer is pasted with insulating flame -retardant layer, and glass fiber resin base, reinforcing layer, main flame -retardant layer and insulating flame -retardant layer are penetrated and fastened with fastening rivet, the outer wall of glass fiber resin base, reinforcing layer, main flame -retardant layer, insulating flame -retardant layer and fastening rivet is wrapped with organic silicon high temperature resistant paint layer. Through the setting of multilayer composite flame -retardant structure, make the glass fiber resin board give consideration to high -efficient flame -retardant efficiency simultaneously, ensure its mechanical property, set up array type anchoring structure simultaneously, effectively avoid the multilayer composite structure of its delamination situation appears because of high temperature, improve its high temperature state board body's stability.