215 results about "Intumescent" patented technology

The invention provides a light super-soft fire-resistant flame-retardant optical cable and a preparation method thereof. The light super-soft fire-resistant flame-retardant optical cable sequentially comprises a high-temperature-resistant optical fiber, a filling layer, a flame-retardant loose tube, a reinforcing layer, a heat insulation layer and a fire-resistant flame-retardant layer from inside to outside, the fireproof flame-retardant layer comprises the following preparation raw materials in percentage by mass: 55-65% of plasma activated mineral powder, 25-35% of a thermoplastic elastomer base material subjected to irradiation crosslinking treatment, 8-12% of a phosphorus-nitrogen intumescent flame retardant and 1.5-2.5% of a silane coupling agent; the nano mineral powder comprises a magnesium aluminum silicate compound, and the thermoplastic elastomer matrix comprises a blend of SEBS (Styrene-Ethylene-Butylene-Styrene) and TPU (Thermoplastic Polyurethane). The fire-resistant flame-retardant layer forms a ceramic protection layer at high temperature to perform fire-resistant flame-retardant protection and prevent heat transfer, and meanwhile, the heat insulation layer is matched to further prevent heat from being transferred to the cable core, so that the performance of the optical cable is ensured not to be influenced.

The invention provides a phase change enhanced ablation-resistant modified liquid silicone rubber material as well as a preparation method and application thereof, and belongs to the field of advanced materials. According to the invention, paraffin is adopted as a phase change filler, so that the ablation resistance and heat insulation performance of the expanded ceramic liquid silicone rubber material are remarkably improved, and the prepared silicone rubber composite material has the advantages of low density, low ablation surface temperature, strong carbon layer and high heat absorption capacity. The phase-change reinforced modified expanded ceramic flexible ablation-resistant material further improves the ablation resistance and high-temperature heat insulation performance of a liquid silicone rubber material, and has a good application prospect in the fields of aerospace thermal protection, building heat insulation and the like.

The invention discloses a halogen-free compound flame retardant and application thereof in an antistatic nylon 66 composite material, and belongs to the technical field of polymer composite materials. The halogen-free compound flame retardant is prepared by compounding 68 parts of an organic aluminum hypophosphite flame retardant, 20 parts of a nitrogen-phosphorus intumescent flame retardant, 10 parts of a two-dimensional layered inorganic substance and 2 parts of a coupling agent through a high-speed mixing and drying process. The halogen-free compound flame retardant is blended with nylon 66, reinforced fibers, an antioxidant and the like, and the composite material is prepared through melt extrusion. According to the compound system, the total dosage of the flame retardant is remarkably reduced, the V-0 flame retardant grade is still achieved under the condition that the thickness is 0.8 mm, and the limit oxygen index exceeds 32%. The composite material has excellent flame retardancy and antistatic property while maintaining good mechanical properties, is suitable for a high glass fiber content system, effectively solves the problems of high flame retardant addition amount, difficult processing, high cost and the like in the prior art, and has the advantages of simple process and excellent comprehensive performance.

Belonging to the technical field of fireproof coatings, the invention relates to a building fire protection coating fireproof material, which is prepared from the following raw materials: 45-55 parts of acrylic emulsion, 20-25 parts of modified intumescent flame retardant, 5-8 parts of pigment filler, 3-5 parts of dispersant, 1-3 parts of defoaming agent and 20-30 parts of deionized water. According to the technical scheme, the flame-retardant material is obtained by combining the flame-retardant compound with the amino silane; the fireproof filler is coated with layered double hydroxides, so that a reinforcing material is obtained; a flame-retardant material is combined with a reinforcing material to obtain a modified intumescent flame retardant; and uniformly mixing the acrylic emulsion, the modified intumescent flame retardant, the pigment filler, the dispersing agent, the defoaming agent and the deionized water to finally obtain the building fire-fighting coating fireproof material. The modified intumescent flame retardant well improves the fireproof performance, the flame retardant performance and the impact resistance of the fireproof coating material, the environment-friendly performance is good, and the comprehensive performance of the building fire-fighting coating fireproof material is integrally improved.

The present invention belongs to the field of polymer materials, and relates to a melamine cyanurate (MCA) coated aluminum diethylphosphinate (ADP) intumescent flame retardant thermoplastic polyurethane and a preparation method thereof. The present invention uses a molecular self-assembly technique to prepare the MCA@ADP flame retardant, and uses MCA@ADP as both the acid source and the gas source, and dipentaerythritol as the carbon source to form an intumescent flame retardant system; the melamine cyanurate coated aluminum diethylphosphinate intumescent flame retardant thermoplastic polyurethane composite material is prepared by melt blending. Adding MCA@ADP and dipentaerythritol is beneficial to the formation of a dense carbon layer after the combustion of the thermoplastic polyurethane composite material, improves the compatibility between the material and the flame retardant, improves the flame retardant performance of the material, and enhances the fire safety performance of the material.

The invention relates to the technical field of cable materials, and particularly provides a composite flame-retardant cable material and a preparation method thereof, and the composite flame-retardant cable material comprises the following components: matrix resin: 50-70 parts of ethylene-vinyl acetate copolymer; a composite flame retardant system: 15 to 25 parts of ammonium polyphosphate / pentaerythritol and 5 to 10 parts of Mg / Al-LDH; and the synergistic smoke suppressant is 1-3 parts of a compound compounded by zinc borate and silicon dioxide according to the mass ratio of 1: 1. Through the synergistic effect of an ammonium polyphosphate / pentaerythritol intumescent flame retardant system and Mg / Al-LDH, a gas phase-condensed phase dual flame retardant mechanism is formed, and when the total addition amount of the flame retardant is smaller than or equal to 35%, the composite system can reach the UL-94 V-0 level, the limit oxygen index (LOI) is larger than or equal to 32%, and the composite system is remarkably superior to a traditional single flame retardant system.

The application provides a kind of fire-retardant heat-conducting polyacrylic acid fireproof paint and its preparation method, according to mass fraction includes the following raw materials: methyl methacrylate 3-24 parts, butyl acrylate 3-30 parts, acrylic acid 0.5-9 parts, intumescent monomer 2-15 parts, modified ceramic material 0.6-10 parts, composite emulsifier 0.6-3 parts, buffer 0.8-1.8 parts and initiator 0.2-1.5 parts;Intumescent monomer is obtained by the reaction of bio-based material, methyl methacrylate phosphate and melamine;The modified ceramic material is the ceramic material modified by silane coupling agent.The fire-retardant heat-conducting polyacrylic acid fireproof paint of the application has the advantages of simple formula, no environmental pollution, low toxicity, low VOC content, no irritating odor, etc.;High efficiency of flame retardancy, can quickly generate high-quality intumescent carbon layer after fire.

A fire-rated component for a fire-rated joint, such as a head-of-wall assembly, includes an elongate body having at least a first layer, which can be in the form of a polymer profile. A second layer can be or include a foil lining and a third layer can be or include an intumescent material. The elongate body, such as the first layer, defines an air gap. The foil lining and / or the intumescent material can be positioned within the air gap. A planar lower portion of the first layer of the elongate body is positioned between a header track and a wallboard in the fire-rated joint. A non-planar upper portion of the first layer of the elongate body is positioned at least partially within a deflection gap of the wall assembly and sealingly engages the ceiling.

The invention relates to the technical field of high polymer materials, and particularly discloses a B1-grade low-smoke halogen-free flame-retardant polyethylene cable material and an extrusion molding process thereof. The invention discloses a B1-grade low-smoke halogen-free flame-retardant polyethylene cable material. The cable material is prepared from the following raw material components in parts by weight: 50 to 70 parts of linear low-density polyethylene, 50 to 70 parts of ethylene-vinyl acetate copolymer, 40 to 60 parts of nanoscale magnesium hydroxide, 5 to 8 parts of microencapsulated red phosphorus, 10 to 15 parts of intumescent flame retardant, 3 to 5 parts of zinc borate and 2 to 4 parts of carbon nanotubes. According to the cable material, the ethylene-vinyl acetate copolymer can improve the dispersing performance of the inorganic filler, the composite flame retardant composed of the nanoscale magnesium hydroxide, the microencapsulated red phosphorus and the intumescent flame retardant is utilized, and the synergistic effect of the zinc borate and the carbon nanotubes is matched, so that the obtained cable material has better flame retardance, and the release of smoke is less.

The invention provides a PVC (polyvinyl chloride) plate for a refrigerator back plate, which is prepared from the following raw materials: 50 to 75 parts of PVC resin, 5 to 20 parts of chlorinated polyvinyl chloride, 5 to 15 parts of phosphorus-nitrogen flame retardant, 5 to 20 parts of inorganic flame retardant, 3 to 10 parts of mica powder, 3 to 10 parts of plasticizer, 0.2 to 3 parts of heat stabilizer, 0.2 to 3 parts of lubricant, 0.2 to 3 parts of coupling agent, 0.3 to 3 parts of nucleating agent, 0.5 to 1 part of antioxidant and 2 to 10 parts of processing aid. The phosphorus-nitrogen flame retardant is one or a combination of melamine polyphosphate, ammonium polyphosphate and phosphazene flame retardants; the inorganic flame retardant is one or a combination of aluminum hydroxide, magnesium hydroxide and antimony trioxide. The composition of the flame retardant in the PVC board is regulated and controlled, and the flame retardant property of the refrigerator back board can be greatly improved by compounding the phosphorus-nitrogen intumescent flame retardant and the inorganic flame retardant, so that the flame retardant property of the refrigerator back board reaches the 5VA grade and meets the industrial standard.

The invention relates to the technical field of materials, and discloses a high-flame-retardancy low-smoke halogen-free cable sheath material and a preparation method thereof.The cable sheath material is prepared by taking a polyvinyl base material as a main raw material and taking a flexibilizer, a flame retardant and the like as auxiliary materials through mixing and extrusion processes; wherein the flame retardant is prepared by cross-linking galactomannan by using a triazine derivative containing a phosphorus flame-retardant element in the structure as a cross-linking agent, the galactomannan can be used as a carbon source, a triazine ring can be used as a nitrogen source, and the phosphorus flame retardant can be used as an acid source, so that a three-element integrated intumescent flame-retardant system can be formed, and the flame-retardant effect is good when combustion occurs. An expanded carbon layer can be rapidly formed on the surface of the sheath material, the expanded carbon layer can effectively isolate oxygen, heat and a fire source, then the flame retardant property of the sheath material is effectively improved, the aerogel structure has rich pores, smoke formed by combustion can be effectively absorbed, and the flame retardant property of the sheath material is improved. Therefore, low-smoke halogen-free modification of polyethylene is realized.

The invention belongs to the technical field of fireproof coatings, and particularly relates to a steel structure fireproof powder coating which comprises the following components in parts by weight: 40-60 parts of epoxy polyester resin, 20-35 parts of a composite intumescent flame-retardant system, 5-15 parts of a flame-retardant aid, 5-15 parts of functional filler, 0.5-2 parts of a flatting agent, 0.2-1 part of a defoaming agent and 5-10 parts of a curing agent, wherein the epoxy polyester resin comprises epoxy resin and polyester resin, and the composite intumescent flame-retardant system comprises an acid source, a gas source and a carbon source. According to the fireproof powder coating for the steel structure, the epoxy polyester resin is used as a base material, the composite intumescent flame-retardant system, the flame-retardant additive, the functional filler and the like are combined, and all the components have a synergistic effect, so that the coating has excellent fireproof heat-insulating performance and flame-retardant effect. When a fire disaster occurs, the composite intumescent flame-retardant system can rapidly expand to form a fluffy heat-insulating carbon foam layer, heat and oxygen are effectively isolated, and flame spreading is prevented; the flame-retardant auxiliary agent further enhances the flame-retardant effect through decomposition heat absorption and oxygen concentration dilution.

The invention relates to a low-smoke flame-retardant ethylene propylene diene monomer composite material and a preparation method thereof, and belongs to the technical field of polymer composite materials. The composite material comprises the following components: 100 parts of raw ethylene propylene diene monomer rubber, 5-8 parts of a cycloolefin copolymer, 20-25 parts of a modified aluminum hydroxide-magnesium hydroxide flame retardant, 15-20 parts of a phosphorus-nitrogen intumescent flame retardant, 2-5 parts of a melamine modified graphene-layered bimetal hydroxide composite flame retardant and 3-10 parts of a vulcanization system, the vulcanization system comprises 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of an accelerant, 0.5-1.5 parts of sulfur and 1-5 parts of a processing aid. According to the invention, the raw rubber of the ethylene propylene diene monomer is compounded with a small amount of cycloolefin copolymer, so that the smoke formation tendency is reduced from the matrix level, and a ternary synergistic flame-retardant system consisting of the inorganic flame retardant, the phosphorus-nitrogen intumescent flame retardant and the nano composite flame retardant is matched, so that the composite material keeps good mechanical properties at the same time.

The invention provides a composite intumescent flame retardant modified polyamide composite material and a preparation method thereof. The flame-retardant nylon 66 and / or nylon 6 composite material is prepared from the following components in parts by weight: 75-85 parts of nylon 66 and / or nylon 6 matrix and 15-25 parts of composite intumescent flame retardant, wherein the composite intumescent flame retardant is prepared from the following components in parts by weight: 30-50 parts of a phytic acid derivative; 20 to 40 parts of melamine pyrophosphate (MPP); 5 to 15 parts of modified nanosheets; and 10-20 parts of a hydrogen bond cross-linking agent. According to the composite intumescent flame retardant modified polyamide composite material disclosed by the invention, the limit oxygen index and the fireproof grade can be remarkably improved under the condition that the addition amount of the composite intumescent flame retardant is low, and the mechanical property of the polyamide material is not influenced.

The invention discloses a sheath material for a high-flexibility robot cable, and the sheath material comprises the following components in parts by mass: 100 parts of polyvinyl chloride resin; 15-20 parts of nitrile rubber; 50 to 70 parts of trioctyl trimellitate; 6 to 10 parts of epoxidized soybean oil; 10 to 20 parts of gas phase method nanometer white carbon black; 5-10 parts of a composite stabilizer; 10 to 15 parts of an environment-friendly flame retardant Sb2O3; 5 to 10 parts of a phosphorus-nitrogen intumescent flame retardant; 5 to 10 parts of flame-retardant graphite; 0.3 to 0.5 part of an antioxidant; 0.3 to 0.5 part of an ultraviolet light absorber; 0.4 to 0.6 part of a light stabilizer; 0.4 to 0.6 part of PE (Poly Ethylene) wax; the invention has the following beneficial effects: nitrile butadiene rubber (NBR) and PVC are blended to form a sea-island phase structure, so the brittleness resistance, oil resistance and low temperature resistance of the material are significantly improved, and the material is suitable for high-frequency motion scenes of robots; the addition of the gas-phase nano white carbon black enhances the reinforcing effect, the tensile strength before aging reaches 2.52 kgf / cm < 2 >, and the elongation at break is 350%, which far exceeds the industrial standard.

The invention discloses a nitrogen-phosphorus intumescent flame retardant based on a hypophosphorous acid derivative and oligomerization Schiff base as well as a preparation method and application thereof, and relates to the technical field of macromolecular flame-retardant materials. The invention discloses a nitrogen-phosphorus intumescent flame retardant based on a hypophosphorous acid derivative and oligomeric Schiff base. The nitrogen-phosphorus intumescent flame retardant has a structure as shown in a general formula (I), wherein the Schiff base chain segment is an oligomerization Schiff base chain segment formed by condensation of aromatic polyamine and aromatic polyaldehyde and has a linear or hyperbranched structure, m, n and x are positive integers larger than 0, m + n is larger than or equal to 2 and smaller than or equal to 8, and x is larger than or equal to 2 and smaller than or equal to 30. According to the flame retardant provided by the invention, an oligomer structure and an introduced benzene ring structure have good compatibility with a polymer matrix and are not easy to migrate and separate out, so that long-acting flame retardance and mechanical properties of a material can be maintained, expensive DOPO is successfully replaced by hypophosphorous acid which is low in cost and easy to obtain, and a solid foundation is laid for large-scale industrial popularization and application.

A multi-layer intumescent coating system comprising an intumescent coating layer A and a non-intumescent coating layer B directly thereon wherein: (i) the coating layer A comprises or is formed from an intumescent coating composition comprising a) a binder; and (ii) the coating layer B comprises or is formed from a non-intumescent coating composition comprising a) a binder; and b) fibers.

Materials comprising a protective coating for thermal protection are disclosed herein. The protective coating is comprised of a sacrificial layer, sacrificial component, or an intumescent layer organized in diverse geometries bioinspired from the thermal resistant structures in pyrophytic plants from the Banksia genus. The protective coating can be applied to various substrates and used for thermal management, water rescue, or crash safety.

The invention discloses a preparation method of a water-resistant and melting-resistant sodium silicate-based fireproof coating, and belongs to the technical field of preparation of fireproof materials and inorganic-organic hybrid coatings. The method comprises the following steps: (1) reacting isophorone diisocyanate with polypropylene glycol to prepare an isocyanate-terminated polyurethane prepolymer; (2) mixing the polyurethane prepolymer with piperazine pyrophosphate to obtain a component A; (3) mixing a sodium silicate aqueous solution with melamine to obtain a component B; and (4) mixing and curing the component A and the component B in proportion to obtain the coating. According to the invention, an isocyanate group in a polyurethane prepolymer and a sodium silicate aqueous solution are subjected to an in-situ chemical reaction, an organic hydrophobic network is constructed on the surface of an inorganic phase, and the water resistance of the coating is remarkably improved. Meanwhile, piperazine pyrophosphate and melamine form an intumescent flame-retardant system, the intumescent flame-retardant system and sodium silicate are synergistically promoted to form a compact and stable intumescent layer at high temperature, and the problems that a traditional water glass coating easily absorbs moisture and melts and flows at high temperature are effectively solved. The method is simple and controllable in process, and the prepared coating has excellent water resistance, fire resistance and heat insulation performance.

The invention provides a water-based single-component modified epoxy intumescent fireproof coating, which is prepared from the following substances in percentage by mass: 13 to 17 percent of deionized water, 1 to 3 percent of polyamide wax slurry, 0.5 to 2 percent of dispersing agent, 0.2 to 0.4 percent of defoaming agent, 7 to 9 percent of titanium dioxide, 3 to 5 percent of filler, 22 to 26 percent of flame-retardant catalyst, 8 to 10 percent of charring agent, 10 to 14 percent of foaming agent and 20 to 24 percent of modified epoxy resin. And 0.1-0.2% of a bactericide. Due to the water-based formula, VOC is basically not released, so that compared with an intumescent epoxy fireproof coating in the prior art, the intumescent epoxy fireproof coating is excellent in environment-friendly performance.

The invention discloses an alcohol-based phosphorus-boron-nitrogen intumescent flame retardant as well as a preparation method and application thereof. The preparation method comprises the following specific preparation processes: carrying out reaction on glycerol and phosphoric acid in a reaction container additionally provided with a water segregator at 100-115 DEG C to prepare glycerol triphosphate; the preparation method comprises the following steps: adding boric acid into a glycerol triphosphate reaction container, and reacting at 100-115 DEG C to obtain glycerol triphosphate boric acid ester; and adding urea into a reaction container of glycerol triphosphate boric acid ester, and reacting at 110-135 DEG C to obtain the alcohol-based phosphorus-boron-nitrogen intumescent flame retardant. The limit oxygen index (LOI) of the cotton fabric finished in the flame retardant finishing liquid with the flame retardant concentration of 200g / L can reach 52%, and the flame retardant grade is gt; 42, the flame retardant property is good. The synthesis process is simple, the raw materials are green, environment-friendly, cheap and easily available, the production process is simple, large-scale production can be realized, and secondary pollution is avoided.

The invention discloses a boron-phosphorus synergistic starch-based single-component intumescent flame retardant as well as a preparation method and application thereof. Starch, phytic acid, boric acid, allantoin and the like are used as raw materials, and the boron-phosphorus synergistic starch-based single-component intumescent flame retardant integrating an acid source, a carbon source and a gas source is designed and prepared. The flame retardant provided by the invention is simple and convenient in preparation process and high in safety, most of the raw materials of the flame retardant are derived from green renewable biomass materials with low cost, and the flame retardant has environment-friendly characteristic and excellent polymer compatibility. The synergistic effect of the phytic acid boron component in a flame-retardant system can be fully exerted by regulating and controlling the ratio of boron to phosphorus, when the flame retardant is applied to a polylactic acid (PLA) material, the influence on the mechanical property of the PLA is small, the PLA can be endowed with excellent flame retardance, the molten drop phenomenon and a large amount of dense smoke in the combustion process of the PLA can be effectively inhibited, and the biodegradation speed of the PLA can be increased.

The present application relates to a kind of self-sealing coating, self-sealing coating and its preparation method and application, belong to functional coating technical field.Self-sealing coating includes healing coating and intumescent coating;The preparation material of healing coating includes: A liquid, raw material includes polyester polyol 40-80 parts, isocyanate 20-60 parts;B liquid, raw material includes polyether amine 40-70 parts, chain extender 10-20 parts, flame retardant 10-25 parts;The preparation material of intumescent coating includes: C liquid, raw material includes polyether polyol 50-80 parts, isocyanate 20-50 parts;D liquid, raw material includes polyether polyol 70-80 parts;E liquid includes fatty acid ester 40-70 parts, acrylate 20-48 parts.A liquid is mixed with B liquid to make coating have good extensibility and resilience;C liquid, D liquid and E liquid are mixed to have oil absorption intumescent capacity.Application is used to the protection of oil product storage device such as gasoline, diesel, kerosene etc..

The invention refers to an intumescent paint composition comprising (a) a polymeric binder, wherein the polymeric binder comprises one or more copolymers, wherein the one or more copolymers, in total, comprise i) from 20 wt.-% to 75 wt.-%, based on the total weight of the polymeric binder, of monomer units obtainable from vinyl acetate, and ii) from 25 wt.-% to 80 wt.-%, based on the total weight of the polymeric binder, of one or more type(s) of monomer units obtainable from the vinyl ester monomers represented by formula (1): , wherein R1, R2, R3 are independently selected from the group consisting of hydrogen and linear or branched unsubstituted C1-11 alkyl groups, wherein the total number of carbon atoms of R1, R2, and R3 is in the range from 1 to 13; (b) an acid donor; (c) a carbon source; and (d) a blowing agent. The invention further refers to a paint, preferably emulsion paint, comprising or consisting of the intumescent paint composition of the invention; to a use of the one or more copolymers of the invention or the intumescent paint composition of the invention for intumescent coatings; to a preparation of the intumescent paint composition of the invention to obtain the intumescent coating of the invention; to a preparation of an intumescent coating by applying the intumescent paint composition of the invention onto a surface and drying said intumescent paint composition; and to a coated article comprising an intumescent coating obtained by applying and drying the intumescent paint composition of the invention.

The present invention discloses a modified fish scale single-component intumescent flame retardant, its preparation method and application. The present invention uses sodium alginate, fish scale, phytic acid, aluminum salt and melamine as raw materials, and prepares a "three-source-in-one" modified fish scale single-component intumescent flame retardant through a one-pot process. The preparation process of the flame retardant of the present invention is simple and safe. Most of the raw materials are derived from low-cost fishery waste and green renewable biomass materials. It is environmentally friendly and highly compatible with polymers. It has little effect on the mechanical properties of composite materials. It has high flame retardant efficiency when applied to PLA and can effectively suppress its melt dripping.

A fire-retardant coating is characterized by comprising the following components in weight percentage: 10-30% vinyl acetate-ethylene copolymer (VAE) emulsion, 10-30% modified urea-formaldehyde resin, 5-20% expandable vermiculite, 10-30% coating additives and other fillers, 10-30% intumescent flame retardant, and 5-30% water; wherein the modified urea-formaldehyde resin is obtained by chemically coating melamine-modified urea-formaldehyde resin with polyacrylate. This fire-retardant coating not only exhibits good expansion properties and excellent fire resistance, but also possesses good water resistance.

The invention relates to an intumescent flame retardant as well as a preparation method and application thereof, and belongs to the technical field of flame-retardant materials. The method comprises the following steps: reacting phosphoric acid with pentaerythritol under a first reaction condition to prepare an intermediate; and adding cyanuric chloride or a derivative thereof into an organic solvent in the presence of alkali, then adding the prepared intermediate, and reacting under a second reaction condition to prepare the target product intumescent flame retardant. Through precise molecular design and step-by-step chemical synthesis, three components, namely an acid source, a carbon source and a gas source, which are physically mixed and have independent functions in a traditional intumescent flame retardant system are integrated into a single molecular structure, so that the prepared intumescent flame retardant is stable and reliable in flame retardant property, the hydrolysis resistance and durability of the flame retardant are remarkably improved, and the flame retardant has good application prospects. The requirements on efficient, lasting and stable flame retardants are met.

The invention discloses a carbon fiber flame-retardant composite plastic and a preparation method thereof, and belongs to the technical field of composite plastic preparation, the carbon fiber flame-retardant composite plastic comprises: 50-80% of a polymer matrix, the polymer matrix is a mixture of a main resin and a flexibilizer, the main resin is at least one of polyamide 6, polyamide 66, polybutylene terephthalate or polycarbonate, and the flexibilizer is at least one of a flexibilizer and an antioxidant. The flexibilizer is a maleic anhydride grafted polyolefin elastomer, and the content of the flexibilizer accounts for 5-15% of the total mass of the polymer matrix; and 15%-40% of surface modified carbon fibers. A synergistic modification layer of a nitrogen-phosphorus intumescent flame retardant and a two-dimensional nano material is constructed on the surface of the carbon fiber through a chemical grafting technology, nano-scale dispersion and firm loading of flame-retardant components are achieved, the composite material can rapidly form a compact and stable intumescent carbon layer during combustion, the limit oxygen index is increased and passes the UL-94V-0 grade, and the flame-retardant performance of the composite material is improved. The problems of low flame retardant efficiency and poor durability caused by non-uniform dispersion and easy migration of a traditional physical blending flame retardant are solved.

The application provides a preparation method of an intumescent pressure-resistant material and the intumescent pressure-resistant material prepared therefrom, and comprises the following steps: S1, preparation of a first mixture: mixing a thermosetting resin with a first curing agent to obtain the first mixture; S2, preparation of a second mixture: mixing a second curing agent with water to obtain the second mixture; S3, preparation of a third mixture: uniformly mixing the first mixture with the second mixture, adding a promoter and a foaming agent, adjusting the rotating speed to 700 rpm-3000 rpm under the conditions of 60 DEG C-85 DEG C and 0.3-3 MPa, and stirring for greater than or equal to 10 min to obtain the third mixture; and S4, curing: allowing the third mixture to be cured under the condition of 0.3-3 MPa to obtain the intumescent pressure-resistant material. In the application, steps S3 and S4 are carried out under high pressure, and the intumescent pressure-resistant material prepared has a higher intumescent temperature, a higher high-temperature mechanical strength, and a stronger sealing ability of functional water.

The invention provides a flame-retardant heat-conducting polyacrylic acid fireproof coating and a preparation method thereof. The flame-retardant heat-conducting polyacrylic acid fireproof coating is prepared from the following raw materials in parts by mass: 3-24 parts of methyl methacrylate, 3-30 parts of butyl acrylate, 0.5-9 parts of acrylic acid, 2-15 parts of an intumescent monomer, 0.6-10 parts of a modified ceramic material, 0.6-3 parts of a compound emulsifier, 0.8-1.8 parts of a buffering agent and 0.2-1.5 parts of an initiator. The intumescent monomer is obtained by reaction of a bio-based material, methacrylic acid phosphate and melamine; the modified ceramic material is a ceramic material modified by a silane coupling agent. The flame-retardant heat-conducting polyacrylic acid fireproof coating disclosed by the invention is simple in formula, and has the advantages of no environmental pollution, low toxicity, relatively low VOC content, no pungent smell and the like; the flame-retardant efficiency is high, and a high-quality expanded carbon layer can be quickly generated after the fire occurs.