86results about How to "Achieving Flame Retardancy" patented technology

The preparation method comprises the following steps: treating sepiolite serving as a raw material with 3-aminopropyltriethoxysilane to prepare aminated sepiolite, ultrasonically blending the aminated sepiolite and a modified filler, then treating with phytic acid to prepare a flame-retardant filler, melting bisphenol A polycarbonate, blending with the flame-retardant filler, and carrying out extrusion molding to obtain the flame-retardant fireproof plastic. When the flame-retardant fireproof plastic is combusted, the flame-retardant filler is subjected to evaporation of hot water molecules to cause structural expansion and form an isolation layer, meanwhile, evaporation of the water molecules can take away heat, released ammonia gas can reduce the content of smoke so as to achieve the flame-retardant effect, and generated inorganic acid and phosphate ester are dehydrated and carbonized, so that the flame-retardant fireproof plastic has a good flame-retardant effect. The carbon layer with large interlayer spacing is formed through cooperation with the isolation layer, an organic silicon structure is contained, Si-C can be formed, then the density of the carbon layer is increased, aluminum oxide and magnesium oxide can be formed after internal aluminum ions and magnesium ions are combusted at high temperature, then the flame retardance of the carbon layer is improved, and the flame-retardant and fireproof effects of the plastic are improved.

The invention discloses a high-water-resistance photovoltaic module non-glass front plate and a preparation method thereof. The non-glass front plate comprises a transparent fluorine film, a cut-off type transparent flame-retardant adhesive film and a transparent water-blocking composite plate; the transparent water-blocking composite board comprises a transparent transition layer, a transparent PET film, a water-blocking film and a transparent priming coat which are compounded in sequence; the cut-off type transparent flame-retardant adhesive film contains an ultraviolet light absorber; a transparent transition layer in the transparent water-blocking composite board is compounded with the cut-off type transparent flame-retardant adhesive film; the transparent bottom coating is provided with protruding points protruding out of the surface of the coating. The high-water-resistance photovoltaic module non-glass front plate has the advantages of high weather resistance, high light transmittance, light weight, water resistance and flame retardance, is suitable for distributed power generation scenes, and can effectively overcome the defects that a glass back plate is heavy in weight, not easy to install and high in infrastructure requirement.

The invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The halogen-free flame-retardant TPU composite material is prepared from the following components in parts by weight: 3 to 10 parts of a modified flame retardant, 2 to 10 parts of phenoxy cyclophosphazene, 80 to 100 parts of TPU particles, 90 parts of N, N-dimethylformamide, 0.8 to 1.2 parts of an ultraviolet light absorber and 2.5 to 3.5 parts of a lubricating agent, in the modified flame retardant, ammonium polyphosphate is heated into polyphosphoric acid, heat insulation and flame retardance are achieved, the comprehensive performance of the material is improved, and a quaternized structure and a carbamate bond synergistically enhance the flame retardance and heat resistance of the material; in the ultraviolet light absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, so that the damage of the ultraviolet rays to the material is reduced, and the ageing resistance and the toughness are enhanced; the halogen-free flame-retardant TPU composite material prepared by the invention not only has good flame-retardant and heat-resistant effects, but also has excellent ultraviolet resistance.

The invention relates to a flame-retardant rubber and plastic thermal insulation material and a preparation method thereof, and belongs to the technical field of high polymer materials. The flame-retardant rubber-plastic thermal insulation material comprises the following components in parts by weight: 50-75 parts of nitrile rubber, 20-45 parts of PVC resin, 10-15 parts of a plasticizer, 1-10 parts of a foaming agent, 1-5 parts of a foaming promoter, 10-40 parts of a composite flame retardant and 2-6 parts of a modified anti-aging agent, cyclohexanehexol phosphate in the composite flame retardant is heated and dehydrated into phosphoric acid, a barrier layer is formed to inhibit release of combustible materials, and dimethylallylamine combusts to absorb heat and cooperates with phosphorus-oxygen double bonds for flame retardance; a pre-product in the modified anti-aging agent reacts with a free radical of a rubber molecular chain, so that the heat resistance and the aging resistance of the material are improved, a maleimide group enhances an intermolecular acting force, the rigidity and the heat resistance of the molecular chain are improved, and material aging caused by high temperature is reduced; the flame-retardant rubber and plastic thermal insulation material prepared by the invention not only has an excellent anti-aging effect, but also has good flame retardance.

The invention relates to the technical field of paint, and discloses a preparation process and application of a salt-fog-resistant, corrosion-resistant and wear-resistant coating, and the salt-fog-resistant, corrosion-resistant and wear-resistant coating is obtained by coating a first layer with a non-metal coating, drying, coating with a metal coating, drying, and finally coating with the non-metal coating. Phosphorus elements contained in the modified phenolic resin and the quaternary ammonium salt modified cyclotriphosphazene can generate polyphosphoric acid and metaphosphoric acid which are high in dehydration property, so that the material is dehydrated and carbonized, and the flame-retardant effect is achieved. Wherein quaternary ammonium salt and imidazole groups contained in the anti-corrosion and anti-bacterial agent have good anti-corrosion and anti-bacterial effects, and after the 1-(2-ethoxyl) imidazole reacts with the hexaglycidyl cyclotriphosphazene, the substitution degree of the imidazole is improved, so that the anti-bacterial agent has more anti-bacterial groups; the phenolic resin has better wear resistance, and the wear-resistant effect of the coating is improved by adding the phenolic resin into the coating.

The invention relates to the technical field of hydrophobic flame-retardant materials, and discloses a method for preparing a super-hydrophobic flame-retardant flexible material from a water-dispersed nanocellulose compound, which comprises the following steps: preparing a nanocellulose suspension; synthesizing silicon dioxide nanoparticles; preparation of a precursor suspension: mixing SiO2 nanoparticles, methyltrimethoxysilane and the nanocellulose suspension in proportion, and carrying out a reaction to obtain the precursor suspension; preparing a polyvinyl alcohol solution; preparing a water-dispersible plant nano cellulose compound mixed solution, and freezing the water-dispersible plant nano cellulose compound mixed solution; and carrying out freeze drying treatment and heat treatment on the frozen material to obtain the super-hydrophobic flame-retardant flexible material. According to the method for preparing the super-hydrophobic flame-retardant flexible material by adopting the water dispersible nano-cellulose compound, the material preparation process is green and pollution-free, and the prepared flexible material has the characteristics of high elasticity, high oil absorbency, reusability, fire resistance, degradability and the like, and can be applied to various fields.

The invention provides a low-smoke halogen-free flame-retardant polypropylene composition as well as a preparation method and application thereof, and belongs to the technical field of polypropylene materials. Comprising the following components in parts by weight: 75 to 84 parts of polypropylene, 7 to 9 parts of chlorinated polyethylene, 0.2 to 0.4 part of an antioxidant, 0.1 to 0.3 part of a lubricant, 0.4 to 0.7 part of a stabilizer, 16 to 18 parts of modified aluminum hydroxide-ammonium polyphosphate, 7 to 8 parts of dipentaerythritol and 3 to 5 parts of melamine. The preparation method of the modified aluminum hydroxide-ammonium polyphosphate comprises the following steps: A1, uniformly dispersing 50g of aluminum hydroxide coated ammonium polyphosphate in 200mL of absolute ethyl alcohol to obtain dispersion liquid I; a2, 1-3 g of a coupling agent is evenly dispersed in 20 mL of absolute ethyl alcohol, stirring and dispersing are conducted for 20 min, and second dispersion liquid is obtained; and A3, adding the dispersion liquid I and the dispersion liquid II into a three-neck flask, keeping the constant temperature of 50 DEG C, stirring for 40 minutes, performing suction filtration, drying at 80 DEG C, and crushing, thereby obtaining the product. According to the invention, it is ensured that the composition can still maintain excellent mechanical properties and flame retardant properties for a long time when being practically applied to a high-humidity environment.

The invention relates to a fluoride-free flame-retardant PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) resin composition as well as a preparation method and application thereof. The resin composition is prepared from the following components in parts by weight: 70 to 90 parts of PC (Polycarbonate) resin, 5 to 10 parts of ABS (Acrylonitrile Butadiene Styrene) resin, 8 to 12 parts of a phosphazene flame retardant, 2 to 5 parts of a toughening agent, 3 to 5 parts of carbon forming fibers, 1 to 3 parts of a melt reinforcing agent, 0.5 to 1.5 parts of an organic silicon flame retardant and 0.5 to 1.5 parts of an auxiliary agent. The preparation method comprises the following steps: stirring and fully mixing the raw materials in a high-speed mixer, melting and compounding the materials under the conveying, shearing and mixing of screws by a twin-screw extruder, and then extruding, drawing, cooling and pelletizing to obtain the fluoride-free flame-retardant PC / ABS resin composition. Compared with the prior art, the resin composition not only has stable flame retardant property, but also has excellent mechanical property, can meet PFAS prohibition, and is very suitable for being applied to the fields of OA (office equipment), new energy batteries, electronics and electrical appliances, household appliances and the like.

The invention provides a self-assembled SDS-LC-LDH and a preparation method thereof as well as modified polypropylene and a preparation method thereof, and particularly relates to the technical field of high polymer materials. The self-assembled SDS-LC-LDH comprises a layered double metal hydroxide, and lignin and catechin which are intercalated between the layers of the layered double metal hydroxide. According to the invention, lignin and catechin are inserted between layers of layered double hydroxides (LDH) to realize the dual functions of flame retardance and antibiosis. And under a high-temperature condition, bound water and carbon dioxide between LDH layers can be released to improve the flame retardant property. Meanwhile, metal hydroxides of the LDH laminates and lignin are subjected to catalytic reaction in the thermal degradation process, a compact carbonization layer is formed, and external heat and oxygen are effectively prevented from penetrating into the material. Phenolic hydroxyl groups in catechin can interfere with normal metabolism and growth of bacteria and show antibacterial characteristics.

The present invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of polymer materials. The halogen-free flame-retardant TPU composite material comprises, by weight, 3-10 parts of a modified flame retardant, 2-10 parts of phenoxy cyclophosphazene, 80-100 parts of TPU particles, 90 parts of N,N-dimethylformamide, 0.8-1.2 parts of an ultraviolet absorber, and 2.5-3.5 parts of a lubricant; in the modified flame retardant, ammonium polyphosphate is heated to polyphosphoric acid, which is heat-insulating and flame-retardant, improves the comprehensive performance of the material, and the quaternary ammonium salt structure and the carbamate bond synergistically enhance the flame retardant and heat-resistant performance of the material; in the ultraviolet absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, reduce the damage of ultraviolet rays to the material, and enhance aging resistance and toughness; the halogen-free flame-retardant TPU composite material prepared by the present invention not only has good flame retardant and heat-resistant effects, but also has excellent anti-ultraviolet performance.

The invention provides a method and application of ammonium polyphosphate loaded layered nickel silicate and flame-retardant epoxy resin, and belongs to the technical field of halogen-free flame-retardant epoxy resin. Comprising the following components in percentage by mass: 75.5%-77.0% of bisphenol A type epoxy resin, 19.5%-20.0% of 4, 4-diaminodiphenylmethane and 3.0%-7.0% of an ammonium polyphosphate loaded nickel silicate compound APP (at) NiPS, the ammonium polyphosphate loaded layered nickel silicate is prepared by loading a certain amount of nickel silicate on the surface of short rod-shaped ammonium polyphosphate; by introducing ammonium polyphosphate loaded layered nickel silicate, the flame retardant property of the epoxy resin composite material is greatly improved, the anti-dripping property of the epoxy resin is improved, and the application range of the epoxy resin is expanded. Meanwhile, the preparation process is simple and suitable for large-scale production.

The present invention relates to the technical field of EVA foam materials, specifically to an EVA foam material and a preparation process thereof. The scheme uses EVA resin as the main material, adds polyamide elastomer, foaming agent, antioxidant, compatibilizer, calcium carbonate, coated core-shell aluminum hydroxide and calcium stearate, mixes and molds to form a sheet, and then irradiates and cross-links, and chemically foams to form an EVA foam material; under this formula of raw materials, the mechanical properties of the EVA foam material prepared by the scheme are improved. At the same time, the scheme uses coated core-shell aluminum hydroxide as a flame retardant, and can achieve relatively excellent flame retardant properties without adding a large amount of flame retardant components, and has high practicality.

The invention relates to the technical field of artificial board processing, in particular to a preparation method of green low-toxicity flame-retardant plywood. The method comprises the following steps: S1, green synthesis and step-by-step dipping treatment of a complexing phosphorus-nitrogen flame retardant; s2, preparation of a flame-retardant adhesive and construction of an interface intumescent flame-retardant system; s3, stepped layered assembly and hot press molding; s4, conducting ion regulation and anti-rust treatment; wherein the complexing phosphorus-nitrogen flame retardant in the step S1 takes phosphorus and nitrogen as core flame-retardant elements and is synthesized through a complexing rapid reaction and cross-linking reaction technology, the reaction temperature is 80-100 DEG C, and the reaction time is 30-60 minutes; the mass ratio of the phosphorus-containing metal complex precursor to the nitrogen source compound to the chitosan to the catalytic substance is (2-3): (5-6): (1-3): (0.5-1). According to the flame-retardant plywood prepared through the method, the combustion rate growth index is smaller than 100 W / s, the 600-s total heat release amount is smaller than 7.0 MJ, the smoke generation rate index of the smoke generation characteristic is smaller than or equal to 30 m / s, the 600-s total smoke generation amount is smaller than or equal to 50 m, and multiple technical defects of traditional flame-retardant plywood are overcome.

The utility model discloses a polypropylene insulating fireproof flame-retardant environment-friendly medium-voltage power cable, which comprises an insulating wire core and an insulating layer, and is characterized in that the insulating layer is wound on the outer side of the insulating wire core; the insulating layer comprises a semi-conductive nylon tape wrapping layer, a metal shielding layer, a glass fiber tape wrapping layer, a heat insulation layer, a fireproof tape wrapping layer, an oxygen isolation layer, a first flame-retardant tape wrapping layer, a fireproof layer, an armor layer, a second flame-retardant tape wrapping layer and an outer sheath layer from inside to outside in sequence. According to the utility model, through the double-structure design of the double fireproof layers, the heat insulation layer and the oxygen isolation layer, the fireproof performance and the flame-retardant B1-level combustion performance of the aluminum alloy core medium-voltage cable are realized, the bunched A-type combustion performance is satisfied, and the high-performance development trend of the cable is met; and the conductor material and the metal shielding material are made of aluminum alloy materials, so that the influence of overhigh price of the copper rod on the cost of the cable is reduced, and the comprehensive competitiveness of the cable market is enhanced.

The invention discloses a polypropylene composite material with weather resistance and flame retardancy and a preparation method thereof, and belongs to the field of thermoplastic high molecular polymer materials. The invention comprises the following steps: a benzyl-containing hindered phenol antioxidant, bromine and a free radical initiator react to obtain a brominated hindered phenol antioxidant; the brominated hindered phenol antioxidant reacts with an amino-terminated organosiloxane to obtain a hindered phenol-organosiloxane; hindered phenol-organosiloxane, a carbon-carbon double bond-terminated organosiloxane and an organic weak acid react to obtain a carbon-carbon double bond-terminated hindered phenol-organosiloxane; hindered phenol-organosiloxane and propylene are polymerized under the action of a composite catalyst to obtain a polypropylene composite material. The invention directly introduces a functional group with flame retardancy and antioxidant properties into the main chain of polypropylene by covalent crosslinking during the preparation process of polypropylene, and then polymerizes to obtain a polypropylene composite material with weather resistance and flame retardancy.

The invention belongs to the technical field of high-performance fiber materials, and relates to a sheath-core structure flame-retardant nylon 6 fiber and a preparation method thereof. The base material of the sheath-core structure flame-retardant nylon 6 fiber is nylon 6, and the sheath-core structure flame-retardant nylon 6 fiber contains a charring agent with a lamellar structure and a high-temperature self-crosslinking agent; the charring agent is only positioned on the skin layer and is orderly and directionally arranged along the axial direction of the flame-retardant nylon 6 fiber with the skin-core structure; the high-temperature self-crosslinking agent is only positioned in the core layer; the crosslinking reaction temperature of the high-temperature self-crosslinking agent is higher than the melting point of the nylon 6 and lower than the combustion temperature of the nylon 6; the specification of the flame-retardant nylon 6 fiber with the skin-core structure is 50-150D / 36-96F, and the ratio of the thickness of the skin layer to the diameter of the core layer is 1: (6-8). The preparation method adopts a composite spinning process. According to the flame-retardant nylon 6 fiber with the skin-core structure, through the unique skin-core structure design, the flame retardant property is improved, and meanwhile the mechanical property of the nylon 6 fiber is maintained.

The utility model relates to the technical field of communication cable protection, in particular to a protective sleeve for a communication cable. A protective sleeve for a communication cable comprises a protective sleeve body which is arranged in a penetrating mode, and the interior of the protective sleeve body is suitable for being provided with the communication cable in a penetrating mode; and the at least one group of fixing assemblies are arranged at the end part of the protective pipe sleeve, each fixing assembly comprises an elastic abutting block, and the elastic abutting blocks are used for eliminating the external force of impact or vibration transmitted to the communication cable from the protective pipe sleeve on the communication cable so as to improve the stability of the communication cable. The protective sleeve for the communication cable solves the problem that when the two ends of the protective sleeve for the communication cable are impacted, the impact force directly impacts the communication cable, and the stability of the communication cable is influenced, so that the protective sleeve for the communication cable is provided.

The sound-absorbing flame-retardant sponge production shaping device comprises a bottom plate, a supporting plate is connected to the upper surface of the bottom plate in an inserted mode, and a left clamping plate, a right clamping plate, a lead screw motor and a containing plate are connected to the upper surface of the supporting plate in a sliding mode. Through the lead screw motor, the effect that the left clamping plate and the right clamping plate are meshed to clamp the sponge for sponge rebound detection when the sponge is manually placed on the upper surface of the supporting plate after the sponge is shaped is achieved, and the problem that the sponge cannot rebound after being deformed when the sponge is inconvenient to use in the later period due to the unqualified sponge rebound resilience is solved; through a placing plate, the problem that a bottom plate is damaged after sponge is punctured due to misoperation when the sponge is punctured is avoided, and a hydraulic rod can drive an extrusion plate and a puncturing barrel to ascend or descend to puncture the shaped sponge so as to achieve the effects of sound absorption and sound insulation; and the problem that a worker needs to drive an extrusion plate to ascend or descend by himself or herself to conduct hole pricking operation on the shaped sponge is solved.

The present invention relates to the technical field of coatings, and discloses a worm-like nano-silica particle coating and a preparation process thereof. The present invention adds worm-like nano-silica particles, fluorine-modified polyurethane, epoxy perfluorooctylamide modified silane, talcum powder, BYK-071 defoamer, BYK-345 leveling agent, and BYK-220S wetting dispersant into a stirrer, and stirs at room temperature to obtain the worm-like nano-silica particle coating. The sulfur element and silicon element contained in the fluorine-modified polyurethane and the epoxy perfluorooctylamide modified silane have good flame retardant effect; the quaternary ammonium salt group contained therein plays a good antibacterial effect, and the large amount of fluorine atoms contained therein have good self-cleaning function for the coating; during the stirring process, the terminal hydroxyl group in the fluorine-modified polyurethane will undergo ring-opening addition with the epoxy group in the epoxy perfluorooctylamide modified silane, and form a tight cross-linked network between each other, so that the connection is tighter, the water absorption is lower, and a good water resistance effect is achieved.

The invention relates to the technical field of electric power materials, in particular to a super-sticky moisture-proof and fireproof blocking adhesive sticker, the super-sticky moisture-proof and fireproof blocking adhesive sticker takes a PET film as a PET base material, a wear-resistant layer is attached to one side of the PET base material, an adhesive layer is attached to the other side of the PET base material, and the PET base material specifically comprises the following components in parts by weight: 80-100 parts of PET particles, 1-2 parts of a curing agent, 1-2 parts of a curing agent and 1-2 parts of a curing agent. The composite material comprises the following components in parts by weight: 2-5 parts of an acrylonitrile-butadiene-styrene copolymer, 5-8 parts of a flame retardant, 0.5-1.5 parts of nano silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri (dodecylbenzenesulfonyl) titanate. The adhesive layer specifically comprises the following components in parts by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of a rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of a flame retardant, 30-50 parts of filler and 3-5 parts of plant essential oil microcapsules. The prepared easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has self-curing performance, the cured easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material can be tightly attached to a protected part, and the easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has excellent waterproof sealing performance and electric leakage resistance, has excellent high-temperature resistance and atmospheric aging resistance, is good in wear resistance, and can be used as a waterproof, moisture-proof and anti-corrosion coiled material. And the material is high in flame-retardant grade, avoids the risk of delayed combustion, and is flexible and convenient to construct on site.

The utility model discloses a flame-retardant insulating pressure-sensitive adhesive tape for external protection of a power battery. The flame-retardant insulating pressure-sensitive adhesive tape comprises a first base material layer, a first primer layer, a first bonding layer, a second primer layer, a second base material layer, a second bonding layer and a release layer which are sequentially laminated, wherein the first bonding layer is a silica gel pressure-sensitive adhesive layer. The utility model provides the power battery external protection flame-retardant insulating pressure-sensitive adhesive tape with a multi-layer structure, so that the impact resistance and the flame-retardant property are realized, the insulating property of a pressure-sensitive adhesive tape product is also improved, and the 180-degree stripping force can reach 1800gf / inch; according to the utility model, the anti-impact performance of the product is improved through the silica gel pressure-sensitive adhesive layer; through the innovative structural design, the flame-retardant insulating pressure-sensitive adhesive tape for external protection of the power battery, which is better in impact-resistant flame-retardant effect and good in adhesive property, is prepared, is better applied to the field of external protection of the power battery and the field with higher requirements, and can be expanded to be applied to an energy storage battery cell.

The utility model relates to the technical field of medical instruments, and discloses an operating lamp insulating shaft sleeve which comprises a shaft sleeve body, a base layer is arranged on the inner material of the shaft sleeve body from inside to outside, a first insulating layer is arranged outside the base layer, and a second insulating layer is arranged outside the first insulating layer. A reinforcing layer is arranged outside the second insulating layer, a protection assembly is arranged outside the reinforcing layer, the protection assembly comprises a blocking layer, the blocking layer is arranged outside the reinforcing layer, a high-temperature-resistant layer is arranged outside the blocking layer, and a breathable layer is arranged outside the high-temperature-resistant layer. According to the utility model, the shaft sleeve is prevented from being deformed and cracked to influence the use and safety of the device, the heat insulation and heat resistance effects are realized, the heat dissipation and flame retardance are carried out on the interior of the shaft sleeve, the combustion caused by overhigh internal temperature is avoided, the durability of the shaft sleeve is improved, and the condition that the shaft sleeve is easy to wear or damage is reduced.

The present invention relates to the technical field of coatings, and discloses a method for preparing a water-based acrylic anticorrosive coating. The present invention uses PEPA and phosphorus pentoxide as raw materials to obtain bis-PEPA-based phosphate. Using 3-hydroxyglutaric acid, aminopropyltriethoxysilane, hexamethylene diisocyanate, graphene oxide, etc. as raw materials, bis-silane-modified graphene oxide is prepared. Add bis-silane-modified graphene oxide, bis-PEPA-based phosphate, etc. to the water-based acrylic emulsion, stir and mix evenly, grind and filter, and obtain a water-based acrylic anticorrosive coating. The present invention utilizes phosphorus hydroxyl, silicon hydroxyl, and graphene in the coating, and the three cooperate to assist in improving the adhesion and corrosion resistance of the coating, and utilize flame retardant elements to improve the flame retardant properties of the coating. The water-based acrylic anticorrosive coating prepared by the present invention has excellent anticorrosion performance, flame retardant properties, and adhesion.

The invention discloses a PBT (polybutylene terephthalate) composition and a preparation method and application thereof, and belongs to the technical field of high polymer materials, the PBT composition is prepared by compounding two PBT matrix resins with different melting points, taking organic solid phosphate matched with a secondary organic halogen-free flame retardant as flame-retardant components, and introducing an ultrasonic welding modifier with specific composition for synergism. And ultra-thin-size flame retardance and machinable fluidity can be achieved, and the ultrasonic welding effect is excellent.

The present invention belongs to the field of organic phase change materials, and specifically discloses a flame retardant phase change material and a preparation method thereof. The flame retardant phase change material prepared by the method of the present invention has intrinsic flame retardant properties, and is not easy to collapse or leak. The flame retardant phase change material of the present invention, when burning, because it has a phase change skeleton of polyethylene glycol segments, absorbs a certain amount of heat through phase change to delay the occurrence of combustion; and during the combustion process, it can produce refractory gas to dilute the oxygen concentration in the ignition area; at the same time, because it has a phosphorus-containing acid source, it enhances the compactness of the residual carbon generated in the condensed phase, forming a more stable expanded carbon layer, effectively blocking the flame and oxygen from entering the interior of the material, hindering the continued spread of the flame, and achieving a flame retardant effect.

The invention relates to the technical field of diatom ooze decorative plates, in particular to a fireproof and antibacterial diatom ooze decorative plate and a preparation method thereof.The fireproof and antibacterial diatom ooze decorative plate comprises a base material layer, a decorative layer and a fireproof and antibacterial coating which are sequentially arranged from bottom to top; the fireproof and antibacterial coating comprises the following raw materials in parts by weight: 3-6 parts of nano silicon dioxide, 6-10 parts of methacryloyloxyethyl hexadecyl dimethyl ammonium chloride, 20-30 parts of 2-hydroxyethyl methacrylate phosphate, 5-10 parts of [(6-oxo-6H-dibenzo [C, E] [1, 2, 3] triazolo [3, 4-b] pyrimidine-2-yl)-1, 2, 3-triazolo [ The invention relates to a UV (ultraviolet) photoinitiator, which is prepared from the following components in parts by weight: 10 to 20 parts of 2, 2] oxophosphahexane-6-yl) methyl] succinic acid bis (2-hydroxyethyl) ester, 80 to 100 parts of polyurethane acrylate resin, 3 to 5 parts of photoinitiator and 20 to 40 parts of organic solvent. According to the fireproof and antibacterial diatom ooze decorative plate and the preparation method thereof, on the premise of ensuring the mechanical strength, the fireproof and antibacterial diatom ooze decorative plate not only has an excellent decorative effect, but also has fireproof performance and antibacterial performance at the same time.

The invention discloses an anti-aging polyethylene plastic and a preparation method thereof, and relates to the technical field of plastic preparation. The anti-aging agent is prepared through coordination binding of 5-amino-2-mercaptobenzimidazole and selenium dioxide, selenium atoms are introduced, chain reaction is prevented, plastic aging is slowed down, and meanwhile sulfur inhibits pyrolytic reaction and slows down flame propagation speed; then, the mixture participates in dehydration condensation reaction in modified polyethylene to jointly form a cross-linked structure, so that the mechanical strength and the thermal stability of the plastic are remarkably improved. Wherein the modified polyethylene is subjected to double-bond polymerization reaction with 1, 3-butadiene and 1, 5-hexadienol, so that the connection stability is improved, and the strength of the plastic is improved; the strength and toughness of the plastic are remarkably improved, the heat resistance is improved, the plastic can adapt to various environments, abrasion is reduced, the silicon element is heated to form a glassy film or carbon black to cover the surface of the plastic during combustion, heat and oxygen are isolated from entering, and the flame-retardant effect is achieved.

The invention discloses an irradiation type high-temperature-resistant cable and a preparation method thereof, and relates to the technical field of cables. Trichloroethyl phosphate and guanidine sulfamate are combined, nitrogen is introduced, during combustion, non-combustible gas is released, the concentration of the combustible gas is diluted, the flame retardant effect is achieved preliminarily, phosphate groups are assisted to form a porous foamy carbon layer, oxygen is prevented from entering, and then the flame retardant effect is improved; then dehydration condensation with vinyl trihydroxysilane is performed to prepare a modified flame retardant, and Si-O bonds are formed, so that the thermal stability of the material is remarkably improved, and the flame-retardant effect is effectively improved; diallylphenylphosphine and a modified flame retardant jointly participate in a polymerization reaction of polyethylene to form a stable three-dimensional cross-linked network structure, the mechanical property of the surface of the cable is improved, meanwhile, phenyl is introduced, the thermal stability and oxidation resistance are remarkably improved, meanwhile, a phosphorus element enables the material to generate a nonflammable product during combustion, and the flame-retardant performance of the cable is improved. Therefore, flame spreading is inhibited, and the flame-retardant effect is achieved.

The invention provides a washable flame-retardant cotton fabric and a preparation method thereof, and the washable flame-retardant cotton fabric is characterized in that the washable flame-retardant cotton fabric is obtained by treating a cotton fabric with a flame-retardant finishing liquid containing an N-P-Si flame retardant; the N-P-Si type flame retardant contains N-based, P-based and Si-based multiple flame-retardant groups, has excellent thermal stability, self-charring capability and flame-retardant efficiency, and endows cotton fabrics with high limit oxygen index and flame-retardant effect when being used for finishing the cotton fabrics; the flame retardant can be bonded with cotton fabric fiber molecules through a strong hydrogen bond, so that the flame-retardant cotton fabric of which the surface is loaded with the N-P-Si type flame retardant has excellent washing resistance.

The invention discloses durable regenerated rubber asphalt and a preparation method thereof, and relates to the technical field of rubber asphalt preparation. The diatomite is coated with chlorinated palm oil methyl ester through surface tension and capillary action, so that the diatomite is hydrophobic, the cold resistance is improved, meanwhile, the heat conductivity coefficient of the diatomite is low, and the flame retardant effect is achieved; then the modified powder is combined with phosphoenolpyruvic acid to prepare modified powder, phosphorus element is introduced, and phosphorus oxyacid, phosphate ester and other substances are generated through decomposition during combustion, so that the flame-retardant effect is achieved; vinyltrihydroxysilane and asphalt are combined to prepare modified asphalt, a stable net structure is formed, heat resistance is improved, meanwhile, a long Si-O bond is introduced, low-temperature molecular agglomeration is reduced, and low-temperature resistance is improved; finally, unsaturated double bonds in the modified asphalt, the activated powder and the rubber powder are subjected to addition reaction and combined, a cross-linked structure is formed, and the heat-resistant, cold-resistant and flame-retardant effects are achieved.