103 results about "Intumescent" patented technology

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.

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 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..

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 utility model relates to the technical field of corrugated cartons, and discloses a novel composite fireproof flame-retardant corrugated carton which comprises a carton body, a sealing plate is mounted on the upper side of the carton body, a mounting groove is formed in the inner wall of the carton body, a mounting block is slidably mounted on the inner wall of the mounting groove, and a lining plate is fixedly connected to the outer side of the mounting block. The surface of the inner lining plate is coated with an environment-friendly intumescent flame retardant, reinforcing ribs are arranged in the inner lining plate, the outer corrugated layer is arranged on the outer side of the carton body and the outer side of the sealing plate, and the middle corrugated layer is arranged between the outer corrugated layer and the inner lining plate. Through cooperative arrangement of the mounting groove, the mounting block, the inner lining plate, the supporting plate, the environment-friendly intumescent flame retardant, the reinforcing ribs, the outer corrugated layer, the honeycomb layer, the flame-retardant coating, the middle corrugated layer, the flame-retardant fiber interlayer and the waterproof layer, the flame retardance and strength of the carton are effectively improved, and a packaged product can be better protected.

The invention belongs to the technical field of coatings, and particularly relates to a high-flame-retardance cable fireproof coating and a preparation method thereof.The high-flame-retardance cable fireproof coating is formed by mixing water-based acrylate emulsion serving as a film-forming substance and synergistic expansion flame-retardant materials and the like serving as additives. Wherein the synergistic intumescent flame retardant is prepared by coating the surface of serpentine with a curdlan intumescent flame retardant with a cross-linked structure, the existence of serpentine can improve the mechanical property of the coating, in addition, in the curdlan structure with the cross-linked structure, curdlan is used as a carbon source, and a cross-linked modifier structure contains a gas source and an acid source, so that the synergistic intumescent flame retardant is prepared. Therefore, the flame retardant has the effect of a three-element integrated intumescent flame retardant, an intumescent carbon layer can be quickly formed during combustion to prevent continuous combustion, and meanwhile, the uniformly dispersed serpentine can achieve a physical barrier effect and is cooperated with the carbon layer, so that the effect of greatly enhancing the flame retardant property of a coating can be achieved by adding a small amount of the serpentine.

Disclosed are products having a coating applied to at least a portion thereof. The products can be vehicle products, home or office appliances, furniture or tooling, power industry products, consumer electronics, construction products, or products protected by an intumescent coating. The coating can be derived from a waterborne coating composition or a powder coating composition and can include an acrylic polyester resin obtainable by grafting an acrylic polymer with a polyester material obtainable by polymerizing a polyacid component with a polyol component comprising 2,2,4,4-tetraalkylcyclobutane-1,3-diol. Also disclosed are methods of application and uses.

The utility model relates to the technical field of fireproof emergency doors, in particular to a double-faced heat insulation fireproof emergency door which comprises a door frame body. The outer side of the door frame body is fixedly connected with an outer frame, the inner side of the outer frame is slidably connected with a mounting frame used for bearing the inorganic intumescent flame retardant, the upper end and the lower end of the outer frame are both slidably connected with supporting blocks, the outer sides of the supporting blocks are fixedly connected with fixing rods, and the inner side of the door frame body is fixedly connected with the mounting frame; positioning holes are formed in the upper and lower ends of the mounting frame; a first magnesium oxide heat insulation plate for heat insulation and fire prevention is arranged on the inner side of the mounting frame; according to the emergency door, the door frame body is installed at the position of a partition through the outer frame, the first magnesium oxide heat insulation plate is installed through the installation frame and the butt joint rod, and when the emergency door is in a fire disaster, an inorganic intumescent flame retardant in the installation frame is heated to react, so that the inorganic intumescent flame retardant foams and expands to fill gaps to insulate heat and prevent fire; the rotating plate and the first magnesium oxide heat insulation plate are used for isolating a fire scene, so that two sides of the emergency door are insulated and fireproof.

The application provides a high-carbon-layer-strength intumescent fireproof coating for steel structure, which comprises the following components in mass fraction: cellulose 0.3-0.6 parts, phosphorus-based flame retardant 18-23 parts, modified nano-titanium dioxide 3-6 parts, modified expandable graphite 3-5 parts, modified glass fiber 0.6-1.8 parts, aluminum hydroxide 1-3 parts, boric acid 1-3 parts, emulsion 20-25 parts, auxiliary agent 22-32 parts, and water 29-43 parts; wherein the modified nano-titanium dioxide is silane coupling agent grafted nano-titanium dioxide; the modified glass fiber is alkali treated glass fiber; and the modified expandable graphite is acid treated expandable graphite. The intumescent fireproof coating for steel structure has excellent carbon skeleton strength and carbon-steel adhesion strength, and can maintain its structural integrity and improve the practical application performance under the harsh conditions such as high temperature, burning and airflow injection.

The invention relates to the technical field of battery flame-retardant protection, in particular to a composite flame-retardant partition plate, a preparation method and a battery box body. The composite flame-retardant partition plate is prepared by the preparation method. The preparation method comprises the following steps: arranging fireproof coating pasters on the front surface and the back surface of an epoxy plate to obtain a composite flame-retardant partition plate; the fireproof coating patch comprises a bonding layer and a fireproof layer which are sequentially arranged on the epoxy board in a stacked mode. And the fireproof layer is an intumescent epoxy resin-based fireproof coating. A battery pack is accommodated in the battery box body containing the composite flame-retardant partition plate; the battery pack comprises a plurality of battery units which are connected in series; and the composite flame-retardant partition plates are arranged on the periphery of each battery unit. The prepared composite flame-retardant partition plate has the advantages of being light, resistant to corrosion, good in flame-retardant effect and not prone to cracking.

The invention provides a phosphorus-nitrogen synergistic intumescent flame retardant and a preparation method and application thereof, and belongs to the technical field of flame retardants, the preparation method comprises the following steps: step S1, enabling expandable graphite and isocyanate to react in the presence of a catalyst to obtain activated expandable graphite; s2, under the protection of inert gas, 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane and protocatechuic aldehyde are subjected to a Schiff base reaction in a solvent, then diethyl phosphite and zinc chloride are added, a phosphoric acid addition reaction is performed, and a flame-retardant monomer is obtained; s3, adding the activated expandable graphite and a flame-retardant monomer into a solvent, and performing grafting reaction in the presence of a catalyst to obtain the phosphorus-nitrogen synergistic intumescent flame retardant. Through the process design of isocyanate activation of the expandable graphite and flame-retardant monomer grafting, a multi-component synergistic flame-retardant system based on chemical bonding is constructed, so that the flame-retardant property of the composite material is improved, and the flame-retardant durability of the composite material is enhanced.

The invention relates to the technical field of coatings, in particular to an efficient intumescent fireproof coating based on a bionic multilayer composite structure and a preparation method. The efficient intumescent fireproof coating based on the bionic multilayer composite structure is prepared by adding organic-inorganic composite matrix resin, a bionic composite flame-retardant system, a lamellar inorganic reinforcing filler, an anti-aging material, an auxiliary agent and deionized water. The coating can form a bionic multi-layer composite structure on the surface of equipment, and the strength of a carbon layer is extremely high; meanwhile, a fiber-particle composite filler is provided, and synergistic interaction is achieved. In addition, by adding the anti-aging material, the anti-aging performance and the antibacterial and antifouling performance of the coating can be effectively improved, so that the coating has a wide application prospect in the technical field of coatings.

The application relates to the technical field of high-molecular compounds, and particularly discloses an intumescent halogen-free flame-retardant ABS material and a preparation method thereof. The preparation method of the intumescent halogen-free flame-retardant ABS material comprises the following steps: S1, flame-retardant slurry preparation, S2, ABS surface treatment, and S3, halogen-free flame-retardant ABS material preparation. A novel solid polysiloxane is prepared, ammonium polyphosphate is modified, and then the modified ammonium polyphosphate is compounded with melamine in a certain proportion to form a high-efficiency intumescent halogen-free flame retardant. After the surface treatment of ABS samples, the ABS samples are placed in the flame-retardant coating slurry, and the ABS samples with the compounded flame-retardant coating are obtained through a pulling method. The flame retardant is coated on the surface of the ABS sample in the form of the flame-retardant slurry, so that the problems of halogen-containing flame retardant toxicity and poor effect of traditional halogen-free flame retardants can be solved, and the problem of obvious decrease of the impact performance of the material after the addition of the flame retardant in the traditional flame-retardant method can be solved.

The application provides an insulating tube for high-voltage cable protection and a preparation method thereof. The insulating tube is composed of an outer tube, an inner tube and a transition layer. The raw material for preparing the outer tube comprises a base resin, a carrier resin, a flame retardant and a slip agent, wherein the flame retardant comprises low-melting-point glass fiber, a phosphorus-nitrogen intumescent flame retardant and a silane coupling agent; the raw material for the inner tube comprises a main body resin and a solubilizing agent; and the raw material for the transition layer comprises soluble fiber raw material, nano-clay and a dispersing agent. Through a composite flame-retardant system and a multi-layer structure design, the application significantly improves the arc resistance, the flame retardant grade and the interlayer bonding force of the insulating tube, solves the technical problems that the traditional insulating tube is prone to breakdown and peeling in a high-voltage environment, and is suitable for long-term safe protection of high-voltage cables.

The present disclosure relates to an intumescent coating and a coated article, wherein the intumescent coating comprises an inorganic binder and at least one inorganic filler. In certain preferred embodiments, the inorganic binder is selected from potassium silicate, sodium silicate, or a combination thereof, and the at least one inorganic filler is selected from clay (e.g., kaolin clay), ceramic fibers, vermiculite, hollow ceramic microspheres, perlite, zeolite, mica, hexagonal boron nitride, silicon nitride and combinations thereof. The coated article comprises a substrate having a first major surface and a second major surface, and an intumescent coating disposed on the first major surface. The present disclosure also relates to kits comprising an intumescent coating and at least one primer. In general, the primer is used to prepare the surface of a substrate on which the coatings are applied. In particular, the present disclosure also relates to an intumescent coating on a plastic substrate, on which a primer has been applied.

The invention discloses a PP adhesive tape suitable for a polymer soft package battery and a preparation method of the PP adhesive tape, and relates to the field of lithium ion battery packaging materials. The PP adhesive tape comprises a polypropylene carrier film and a composite adhesive layer, wherein the composite adhesive layer comprises the polypropylene carrier film, an epoxy-phenolic aldehyde-silane hybrid adhesive layer, a nano-montmorillonite barrier filler, a phosphorus-nitrogen intumescent flame retardant, a polybenzoxazole short fiber, a quaternary phosphonium salt corrosion inhibitor, a silane coupling agent and an antioxidant. According to the composite adhesive layer disclosed by the invention, a self-repairing passivation film is constructed through nano-montmorillonite synergistic barrier, phosphorus-nitrogen intumescent flame retardant and polybenzoxazole short fiber synergistic flame retardance, and quaternary phosphonium salt corrosion inhibitor and silane coupling agent, so that multiple functions of high temperature resistance, electrolyte resistance, flame retardance and corrosion inhibition are realized. The PP adhesive tape disclosed by the invention is excellent in comprehensive performance and suitable for fixing and packaging a roll core of a polymer soft package battery.

The invention discloses a composite intumescent flame-retardant coating, a preparation method thereof and flame-retardant equipment. The composite intumescent flame-retardant coating comprises a flame-retardant raw material, wherein the flame-retardant raw material comprises the following components in parts by weight: 5-10 parts of expandable graphite, 5-15 parts of aluminum hydroxide, 5-15 parts of inorganic aluminum hypophosphite and 0.1-5 parts of titanium dioxide; the flame-retardant solvent comprises at least one of ethyl acetate and polyacrylic resin; the auxiliary agent comprises at least one of a dispersing agent, a defoaming agent, a flatting agent and a diluting agent; the weight ratio of the flame-retardant raw material to the flame-retardant solvent is 3: (4-10). Therefore, the composite intumescent flame-retardant coating has good flame-retardant performance, and can reach the 5VA standard; the components do not contain halogen, do not release harmful gas during combustion reaction, and are environment-friendly; the water resistance, the weather resistance and the adhesive force are high, the preparation method is simple, raw materials are easy to obtain, large-batch production can be achieved, and the application range is wide.

This invention discloses a polyaniline-silicon carbide modified intumescent fire-retardant and anti-corrosion coating and its preparation method. The water-based coating consists of component A (water-based epoxy emulsion, polyaniline-silicon carbide composite material, flame-retardant filler, titanium dioxide, aluminum hydroxide, talc, wetting and dispersing agent, defoamer, leveling agent, film-forming aid, and water) and component B (epoxy curing agent). The polyaniline-silicon carbide composite material is prepared by an ice bath reaction of silicon carbide, aniline, protic acid, and oxidant. In this invention, the polyaniline-silicon carbide composite material enhances the dispersibility in the emulsion through organic-inorganic fusion. Silicon carbide exhibits high thermal stability and good density, while polyaniline provides unique flame-retardant properties. The synergistic effect of these two materials effectively improves the fire resistance and anti-corrosion performance of the coating, enhances the strength of the intumescent layer, and solves the problems of peeling and burn-through that arise when using intumescent fire-retardant coatings in conjunction with anti-corrosion primers, demonstrating promising application prospects.

The application discloses a preparation method of an environment-friendly CN@GO@LAA@Cu intumescent fireproof coating, and the preparation method comprises the following steps: (1) preparing a base material; (2) preparing a CN@GO hybrid material; (3) preparing a CN@GO@LAA hybrid material, (3) preparing a CN@GO@LAA@Cu hybrid material; and (4) preparing the environment-friendly CN@GO@LAA@Cu intumescent fireproof coating. The modified CN@GO@LAA@Cu nano hybrid material is combined with the water-based intumescent fireproof coating, potential dangerous characteristics of the current water-based fireproof coating, such as low carbon layer strength, uneven intumescence and poor fireproof performance, are solved, and the obtained water-based intumescent fireproof coating can form a uniform and dense intumescent carbon layer at high temperature, thereby achieving a good protection effect. The application is mainly used for steel structure fire protection, prolongs the time for the steel structure to reach a failure temperature and collapse under a fire, and thus valuable rescue time is obtained for fire fighting. The water-based intumescent fireproof coating has raw materials which are easy to obtain, simple preparation, low cost, water-based and environment-friendly, and has wide industrial application value.

The invention relates to the technical field of flame-retardant materials, and discloses an environment-friendly halogen-free low-smoke intumescent flame retardant for an acrylic emulsion and a preparation method of the flame retardant, the flame retardant comprises the acrylic emulsion, a defoaming agent, an ethylene bis stearamide emulsion and high-filling flame-retardant slurry; wherein the high-filling flame-retardant slurry is formed by mixing modified attapulgite framework prefabricated slurry, melamine, pentaerythritol, zinc borate and ammonium polyphosphate. The preparation method comprises the following steps: carrying out in-situ grafting on attapulgite at a high temperature by utilizing epoxy functional silane and triethanolamine to construct a hyperbranched organic-inorganic hybrid skeleton; dispersing flame retardant powder by taking the skeleton as a carrier, and preparing high-filling slurry by taking a temperature control measure; and finally, dropwise adding the slurry trickles into an acrylic emulsion serving as a continuous phase by adopting a reverse compounding process. According to the invention, the problems that the emulsion is easy to demulsify and the flame retardant absorbs moisture and is separated out under high filling amount are solved, and the obtained product has excellent water-resistant and anti-separation performance and charring and anti-collapse functions.

The invention relates to the field of coatings, in particular to a polyurea-based water-based intumescent fire retardant coating for a steel structure and a preparation method thereof. The water-based flame-retardant coating comprises the following components in parts by weight: 15-30 parts of water-based polyurea, 20-30 parts of ammonium polyphosphate, 8-10 parts of melamine, 8-10 parts of pentaerythritol, 1-6 parts of a synergist, 8-20 parts of titanium dioxide, 1-4 parts of anhydrous calcium sulfate whisker, 1-3 parts of an auxiliary agent and a proper amount of water, self-made water-based polyurea is used as a base material, ammonium polyphosphate, melamine and pentaerythritol are used as an intumescent flame-retardant system, the proportion and the total addition amount of the three are set, a synergist is added, a B-P-C-N quaternary intumescent system is further formed, inorganic high-temperature-resistant pigment rutile type titanium dioxide is used as an auxiliary material, and the flame-retardant performance of the flame-retardant coating is improved. And the anhydrous calcium sulfate whisker is added as a reinforcing filler, an expanded carbon layer formed when meeting fire is moderate in expansion rate, the carbon layer is more compact and can effectively cope with the impact of hot air flow, and the molecular structure contains ureido and a chemically bonded hydrophilic chain and does not have small molecule migration, so that the water resistance is good.

The application discloses a preparation method of a bimetallic MOF organic fiber-based fireproof coating, and the preparation steps are as follows: (1) preparation of an ORF@Co, Zn-MOF@Si composite flame retardant; (2) preparation of the bimetallic MOF organic fiber-based fireproof coating; the Co / Zn-MOF is loaded on the surface of seaweed fiber (ORF) through a coprecipitation method, and a layer of organosilicon is loaded on the surface of the seaweed fiber, so that the ORF@Co, Zn-MOF@Si composite flame retardant is obtained; then, the ORF@Co, Zn-MOF@Si composite flame retardant is added into an epoxy resin matrix, and a super-thin epoxy intumescent fireproof coating with good fireproof performance and smoke suppression effect is successfully prepared; the coating is characterized in that the catalytic carbonization effect of the bimetallic material can promote the high-temperature setting carbonization of the seaweed acid fiber, and in addition, the introduction of the organosilicon into the resin produces a stable silicon network in the combustion process, and the silicon network plays a role in reinforcing the carbon layer.

The present disclosure teaches a thermal insulation panel comprising an outer panel with a thermal insulation layer encapsulated within the outer panel. A first pair of through-holes and a first opening extend through the thermal insulation panel. A separate cover panel is provided, having a second opening co-aligned with the first opening and a matching second pair of through-holes. The cover panel includes a rupture membrane that covers the second opening. The thermal insulation panel is inserted between the cover panel and the top of a prismatic battery cell, providing thermal protection for adjacent battery cells. The thermally protected battery cells can be used in an electric vehicle, hybrid vehicle, or other battery-powered device.The thermal insulation layer can be made of a carbon fiber reinforced plastic composite (CFRP), mica, steel, a ceramic material or an intumescent coating on a metallic intermediate layer.

The invention relates to the field of fireproof coatings, in particular to an intumescent fireproof coating for a steel structure and a preparation method of the intumescent fireproof coating. The raw materials comprise matrix resin, a flame retardant, graphene oxide, chlorinated paraffin, a rheological additive, a defoaming agent, fumed silica and titanium dioxide. The flame retardant is a flame retardant of an ammonium polyphosphate-pentaerythritol-melamine system, and the mass ratio of ammonium polyphosphate to pentaerythritol to melamine is (2 to 2.5): (1 to 1.5): (1 to 1.5); the thickness of the sheet layer of the graphene oxide is 0.8 to 1.5 nm. The self-made graphene oxide (GO) and the flame-retardant system form a good synergistic effect, so that the strength and density of a carbon layer can be effectively improved, and the fire endurance of the coating is further improved.

The invention relates to the technical field of functional coatings, and discloses a novel flame-retardant intumescent coating based on thermoplastic acrylic resin and application thereof, and the novel flame-retardant intumescent coating comprises thermoplastic acrylic resin, ammonium polyphosphate, pentaerythritol, melamine, chlorinated paraffin, a compound mineral additive, zinc borate, titanium dioxide, an auxiliary agent and an organic solvent. The invention also provides a preparation method of the coating. The preparation method comprises the following steps: heating the solvent to 42-44 DEG C, and sequentially adding the components according to a specific sequence to ensure uniform dispersion. Through the synergistic effect of the aluminum hydroxide, the micro calcite and other mineral fillers, the skeleton strength and the thermal stability of a foam coke layer at a high temperature are remarkably enhanced. Experiments show that the coating has excellent expansion rate and heat insulation efficiency, the carbon residue rate at 800 DEG C is high, the flame retardant rating reaches the UL 94 V-0 level, and the coating is suitable for steel structure fireproof protection in the fields of buildings and engineering.