11374 results about "Flame resistance" patented technology

The invention discloses a core-shell structure flame retardant with a thermo-oxidative aging resistance function and application of the core-shell structure flame retardant in preparation of a flame-retardant material, and belongs to the technical field of flame retardance. The core-shell structure flame retardant with the thermo-oxidative aging resistant function is composed of the core and the shell structure, the core is the flame retardant, the shell structure is a polymer containing hindered phenol and low-valence phosphorus, on one hand, hydrophobicity of the flame retardant can be improved, on the other hand, compatibility and dispersity of the flame retardant in a polymeric material can be improved, and the flame retardant performance is improved. Further, the flame retardant property and the mechanical property of the polymer material are improved. Besides, hindered phenol and low-valence phosphorus in the shell polymer not only can capture RO.and ROO.free radicals and inhibit the thermo-oxidative aging process of the polymer, but also can play a role in capturing the free radicals in the combustion process, so that the flame retardant property of the polymer material is further improved. The flame retardant disclosed by the invention has excellent flame retardance and thermal aging resistance, and can be applied to the fields of buildings, traffic, chemical engineering, machinery, communication, energy sources and the like.

The invention provides a polymer additive and application thereof. The polymer additive is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. The dialkyl phosphinate has a structure as shown in a formula I, and the alkyl phosphinate has a structure as shown in a formula II. According to the invention, through design and compounding synergy of various phosphonates, the flame-retardant effect can be obviously improved, so that the polymer additive has excellent and efficient flame retardance. The polymer additive is used in a polymer material, and a polymer composition containing the polymer additive can have excellent flame retardant property, good toughness, high impact strength and excellent mechanical property and humidity and heat resistance under the condition that the addition amount is small.

The invention discloses a flame-retardant aging-resistant polyolefin cable material, a preparation method and a cable prepared from the cable material. The flame-retardant aging-resistant polyolefin cable material is prepared from the following ingredients in parts by weight: 20 to 40 parts of polyethylene, 20 to 30 parts of polyolefin elastomers, 5 to 10 parts of organic compatilizers, 5 to 15 parts of modified nano aluminum hydroxide / hexagonal boron nitride nano composite powder and 10 to 30 parts of flame retardants. The flame-retardant and aging-resistant polyolefin cable material provided by the invention has good mechanical properties and scratch and wear resistance, has high flame retardance and is suitable for the cable industry.

The invention relates to the technical field of polyamide materials, in particular to a high-heat-resistance bio-based polyamide material and a preparation method thereof, and the high-heat-resistance bio-based polyamide material comprises the following raw materials in parts by weight: 45-50 parts of PA56, 7-11 parts of a balance multi-effect agent doped with a filler modifier, 5-8 parts of a flame retardant, 4-7 parts of a silane coupling agent, 3-5 parts of an antioxidant and 2-4 parts of a lubricant. According to the bio-based polyamide material, the bio-based PA56 is adopted as a matrix, meanwhile, the flame retardant, the silane coupling agent, the antioxidant and the lubricant are added to serve as functional auxiliaries, the balance multi-effect agent doped with the filler modifier is added to be matched with the stable supplement agent, and the raw materials are blended, coordinated and jointly synergized, so that the flame retardant property of the bio-based polyamide material is improved, and the flame retardant property of the bio-based polyamide material is improved. The obtained bio-based polyamide material is harmoniously improved in dielectric loss, flame retardance and wear resistance, and meanwhile, the product is remarkable in weather resistance and high heat stability resistance.

The invention belongs to the technical field of polyurethane, and particularly relates to a low-reaction-heat mine reinforcing material and a preparation method thereof. Comprising a component A and a component B, the component A comprises polyether polyol A, polyether polyol B, a flame retardant and a catalyst; the polyether polyol A takes a bisphenol compound and sorbitol as a mixed initiator; the polyether polyol B takes cane sugar and sorbitol as a mixed initiator; the component B comprises a prepolymer, a flame retardant and a viscosity reducer; the prepolymer is prepared by prepolymerizing polymerized MDI (Diphenyl Diisocyanate) and polyether polyol C; and the polyether polyol C takes tetrabromobisphenol A and dihydric alcohol as a mixed initiator. The bisphenol compound polyether polyol A and the high-functionality polyether polyol B which are used as specific initiators are mixed, so that the reaction heat is reduced, and the strength of the reinforcing material is improved; meanwhile, polyether polyol C starting from tetrabromobisphenol A is used, so that the flame retardance, the toughness and the strength of the prepolymer are enhanced; the prepared reinforcing material is high in compressive strength and low in reaction heat.

The present invention discloses a high-performance base film for composite current collector and a preparation method thereof, the method comprising the following steps: S1, mixing PP masterbatch with composite modified auxiliary particles, melt extruding, cooling to obtain a cast sheet; S2, preheating the cast sheet and biaxially stretching it to obtain a stretched sheet; S3, heat setting, cooling, and obtaining a rough product; S4, performing surface corona treatment on the rough product; S5, winding, aging treatment, and slitting to obtain a high-performance base film for composite current collector. The present invention can well solve the problem of poor copper adhesion of conventional PP base films, and can also significantly improve the flame retardant properties and tensile strength of the PP base film, which is conducive to promoting the large-scale application of PP materials in composite current collector base films.

The invention discloses a corrosion-resistant and flame-retardant cross-linked polyolefin cable, and belongs to the technical field of polyolefin cable manufacturing. The corrosion-resistant and flame-retardant cross-linked polyolefin cable comprises a conductor wrapped with an isolating layer, an oxygen isolating layer and an insulating layer are sequentially extruded outside the isolating layer, then a belting layer is wrapped outside the isolating layer, and then a polyolefin composite shielding material inner shielding layer containing ferrite and a ceramic flame-retardant polyolefin composite material flame-retardant layer are sequentially extruded outside the isolating layer. An aluminum foil Mylar tape is lapped to form an outer shielding layer, finally, a halogen-free low-smoke flame-retardant corrosion-resistant polyolefin mixture outer protection layer is coated, and a protective coating is coated. The corrosion-resistant and flame-retardant cross-linked polyolefin cable is simple in structure and easy to manufacture, has excellent mechanical properties, high pressure resistance, tensile resistance, bending resistance, flame retardance, waterproofness, corrosion resistance, aging resistance, interference resistance, radiation resistance and high and low temperature impact resistance, and prolongs the high-temperature service life of the cable.

The invention relates to the technical field of insulating materials, in particular to a flame-retardant high-strength insulating material and a preparation process thereof. The insulating material comprises the following components in parts by weight: 50-60 parts of polyvinyl chloride, 20-40 parts of crosslinked polyethylene, 10-15 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a flame retardant, 5-15 parts of talcum powder, 10-20 parts of calcium carbonate, 6-12 parts of a compatilizer and 3-8 parts of an antioxidant. The flame retardant is prepared by taking ammonium polyphosphate as an acid source, polydopamine as a charring agent and modified graphene oxide as a reinforcing agent, the flame retardant is added into polyvinyl chloride and a crosslinked polyethylene insulating material base material, and combined with the combined action of an ethylene-vinyl acetate copolymer, talcum powder, calcium carbonate, a compatilizer and an antioxidant, the flame retardant property of the insulating material base material is improved, and the flame retardant property of the insulating material base material is improved. The prepared insulating material not only has excellent mechanical property, but also has excellent flame retardant property, so that the service life of the material is prolonged.

This application relates to an EPP material and a folding mat using this EPP material, which relates to the field of EPP material technology. The EPP material is formed into a plate by welding EPP particles, and the surface of the plate is coated with a hydrophobic antibacterial paint. The raw materials for preparing the EPP particles include 80-100 parts by weight of polypropylene resin, 1-3 parts by weight of a nucleating agent, 6-8 parts by weight of a modified graphene composite material, 5-10 parts by weight of a flame retardant, 5-15 parts by weight of a reinforcing agent, and 0.5-1.5 parts by weight of a surfactant. The raw materials for preparing the modified graphene composite material include hydrophobic modified graphene oxide, hydrophobic antibacterial nano-zinc oxide, and a modified ammonium polyphosphate coupling agent. The folding mat using this EPP material includes an EPP material, a surface layer, and a sewing thread, and the surface layer and the EPP material are fixedly connected by the sewing thread. This application has the effect of improving the flame retardancy, waterproofness, and antibacterial properties of EPP material, and the resulting tatami mat is environmentally friendly, comfortable, and has a good user experience.

The invention discloses a flame-retardant PC / ABS (polycarbonate / acrylonitrile butadiene styrene) composite material for automobiles and a preparation process thereof, and relates to the technical field of PC / ABS composite materials. The PC / ABS composite material is prepared from the following components in parts by weight: 60 to 70 parts of PC resin, 50 to 60 parts of ABS resin, 6 to 12 parts of hyperbranched modified ATP (Adenosine Triphosphate), 4 to 8 parts of antioxidant flame retardant, 2 to 4 parts of compatilizer and 2 to 4 parts of flexibilizer. Under the synergistic effect of the hyperbranched modified ATP, the antioxidant flame retardant, the compatilizer and the toughening agent, the PC / ABS composite material with excellent flame retardant property, antistatic property and aging resistance is comprehensively prepared, and can be well applied to automobile ornaments.

The invention relates to an oil-resistant flame-retardant composite sealing material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. Fluororubber, nitrile rubber, ethylene propylene diene monomer, chlorinated polyethylene and maleic anhydride grafted polypropylene are adopted to prepare composite rubber according to a certain proportion; then adding hydrogenated polyisobutene, a vinyl polydimethylsiloxane-polymethylsiloxane silsesquioxane cross-linked polymer, an E-GMA-VA terpolymer, magnesium hydroxide, basalt fiber powder, ammonium polyphosphate, triphenyl phosphate, expansible graphite, zinc borate, a vulcanizing agent, an accelerant, an anti-aging agent, a plasticizer and other components according to a proportion, and performing banburying in special steps; the prepared sealing material has good mechanical properties, especially has oil resistance and flame retardance, and the service life is greatly prolonged.

The invention relates to the technical field of flame-retardant polypropylene composite materials, in particular to a flame-retardant reinforced polypropylene composite material containing flame-retardant modified glass fibers and a preparation method of the flame-retardant reinforced polypropylene composite material. The flame-retardant modified glass fiber-containing flame-retardant reinforced polypropylene composite material is prepared from the following raw materials: 30 to 60 parts of polypropylene, 5 to 60 parts of flame-retardant modified glass fiber, 5 to 20 parts of piperazine pyrophosphate, 5 to 20 parts of melamine polyphosphate, 0.5 to 5 parts of flame-retardant synergist, 1 to 6 parts of maleic anhydride ester-grafted polypropylene, 0.5 to 3 parts of coupling agent, 0.3 to 3 parts of lubricant and 0.2 to 0.5 part of antioxidant. The flame-retardant modified glass fibers are glass fibers subjected to surface modification by using a focused piperazine phosphate-melamine polyphosphate random copolymer. According to the technical scheme, the problem that the mechanical property and flame retardant property of glass fiber reinforced polypropylene in the prior art are difficult to optimize at the same time can be solved, and the glass fiber reinforced polypropylene has ideal popularization and application prospects.

The invention discloses a low-temperature-resistant heat-insulating composite material and a preparation method thereof, and relates to the technical field of composite materials, and the material comprises an outer protective layer, a middle reinforcing layer and an inner heat insulating layer. The inner heat insulation layer is composed of aerogel, polytetrafluoroethylene micro powder and the like, and good heat insulation performance is provided. The middle reinforcing layer contains ethylene-propylene rubber and the like, so that the material is endowed with elasticity, mechanical strength and flame retardance. And the outer protective layer is made of PVC resin and the like, so that the overall strength and wear resistance are enhanced. The low-temperature-resistant anti-cracking additive is prepared from polyimide resin and the like, so that the anti-cracking performance is improved. The modified filler is prepared through a specific method, and the material performance is improved. During preparation, all the layers are prepared respectively and then subjected to hot-pressing compounding. The internal mixer control system guarantees preparation parameter control of the middle enhancement layer, and a PID control algorithm is adopted. The composite material has the advantages of reasonable structural design, synergistic effect of all layers, mature preparation method and process, excellent performances of low temperature resistance, heat insulation, cracking resistance and the like, and is suitable for being applied to various low-temperature environments.

The invention discloses a preparation method of a B1-grade flame-retardant fire-resistant control cable, belongs to the technical field of flame-retardant fire-resistant cables, and aims to solve the technical problem that the mechanical strength and the fire-resistant and flame-retardant performance of an inorganic flame-retardant modified fire-resistant fire-resistant control cable in the prior art need to be further improved. The method comprises the following steps that a plurality of cable cores are arranged in parallel, gaps among the cable cores are filled with filling ropes to form filling layers, the cable cores filled with the filling layers are wrapped together through a wrapping tape, and a wrapping layer is formed outside the cable cores. According to the invention, maleic anhydride modified polyethylene is used as a phase solvent, and polyethylene is cross-linked and enhanced by modified graphite and modified polysiloxane, so that not only is the mechanical strength of the cable material effectively improved, but also the fire resistance and flame retardance of the cable material are improved.

The invention provides a flame-retardant heat-insulating fabric for fire-fighting clothes and a preparation process thereof, and belongs to the technical field of fire-fighting fabrics. The preparation process comprises the following steps: preparing coated modified ammonium polyphosphate; modified expanded perlite; preparing a flame-retardant outer-layer fabric; preparing a heat insulation core layer fabric; preparing an antibacterial inner layer fabric; and bonding. The flame-retardant heat-insulating fabric for the fire-fighting clothes comprises a flame-retardant outer-layer fabric, a heat-insulating core-layer fabric and an antibacterial inner-layer fabric, ammonium polyphosphate is dispersed in deionized water, polyethyleneimine is added under the acidic condition, amino on the polyethyleneimine and ammonia ions of the ammonium polyphosphate are subjected to an ion exchange reaction, and the flame-retardant heat-insulating fabric for the fire-fighting clothes is obtained. According to the flame-retardant outer-layer fabric, ammonium polyphosphate is preliminarily coated, then a hydroxyethylidene diphosphonic acid solution is added for a salt forming reaction, coated modified ammonium polyphosphate with a core-shell structure is prepared, the coated modified ammonium polyphosphate and polyester powder are mixed and granulated, then the flame-retardant outer-layer fabric is prepared, and the flame-retardant property of the flame-retardant outer-layer fabric can be effectively improved.

The invention relates to the technical field of PVC pipe production and processing, and particularly discloses a PVC pipe composition and a preparation method of a PVC pipe. PVC resin and PE resin are compounded, the problem of PVC decomposition caused by high temperature in the processing process is reduced, meanwhile, the PE resin has good flexibility, and by compounding the PVC resin and the PE resin, the PVC resin and the PE resin have good flexibility, so that the PVC pipe composition is more stable in performance. The mechanical property of the PVC pipe can be improved; 4-carboxyphenylboronic acid in the composite modified attapulgite provided by the invention forms a B-O-B cross-linked network structure at a high temperature, the 4-carboxyphenylboronic acid can have a synergistic effect with composite metal oxides (zinc oxide and manganese oxide), the thermal stability and compactness of a carbon layer are improved, and the flame retardant property of the PVC pipe is further improved; a flexible alkyl long-chain structure is formed through copolymerization of 1, 4-diol, reversible deformation occurs under the action of external force, and the mechanical property of the PVC pipe is further improved.

The invention relates to the field of cable materials, and provides a flexible flame-retardant polyolefin insulating material for a high-flexibility drag chain cable and a preparation method thereof.The flexible flame-retardant polyolefin insulating material comprises phosphorus-containing flame retardant surface modified boron nitride, polyphosphazene modified magnesium hydroxide nanowires, polyolefin matrix resin and the like. The phosphorus-containing flame retardant surface modified boron nitride is prepared by carrying out surface modification on hydroxyl modified hexagonal boron nitride through 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and vinyl trimethoxy silane, and shows excellent flame retardant property and flexibility. The polyphosphazene modified magnesium hydroxide nanowire is prepared through silane coupling agent functionalization and polyphosphazene cross-linking polymerization, and has flame retardance and a reinforcing effect. The preparation method of the material comprises the steps of raw material premixing, melt blending, cooling granulation and extrusion molding. The material has the characteristics of flame retardance, high flexibility and the like, and is widely applied to dynamic high-flexibility cables in the fields of industrial automation equipment, robots, machine tool manufacturing, logistics conveying systems and the like.

The invention relates to an antibacterial PP material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antibacterial PP material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 2 to 4 parts of a surfactant, 0.5 to 1.5 parts of a modified antibacterial agent, 0.5 to 1.5 parts of a flame retardant and 0.2 to 0.8 part of an antioxidant, titanium ions in the modified antibacterial agent destroy bacterial cell walls, quaternized intermediate products react with proteins of cell membranes to accelerate bacterial death, and in addition, phenolic hydroxyl groups absorb ultraviolet rays with different wavelengths to inhibit the light aging process; a compact and continuous carbon layer is formed during combustion of the flame retardant and cooperates with phosphorus-oxygen double bonds and melamine, the flame retardant efficiency is improved, aluminum hydroxide coats the surface, hydroxyl is subjected to heat absorption decomposition during combustion, the surface temperature of combustible materials is stabilized, meanwhile, an inert aluminum oxide layer is formed, and the flammability is reduced. The antibacterial PP material prepared by the invention not only has good antibacterial and anti-aging effects, but also has excellent flame retardant property.

The invention relates to the technical field of flame retardants, in particular to a phosphorus-nitrogen synergistic flame-retardant biomass flame retardant and application thereof. A conventional reaction type phosphorus-nitrogen flame retardant is huge in structure and large in steric hindrance and cannot be completely dissolved in an epoxy resin material system, the obtained flame-retardant epoxy resin is poor in transparency, and the mechanical property is greatly reduced. In order to solve the problems, the invention provides the phosphorus-nitrogen synergistic flame-retardant biomass flame retardant which is obtained by sequentially carrying out simple one-pot synthesis reaction on furfural and furfural derivatives with 2-amino-1, 3, 4-thiadiazole and DOPO, and the flame retardant is simple in structure, small in steric hindrance, easy to completely dissolve in epoxy resin, good in flame retardancy and good in flame retardance. The obtained flame-retardant epoxy resin is better in transparency, flame retardance and mechanical property.

The invention relates to the technical field of TPU films, in particular to a flame-retardant TPU film and a preparation method thereof, and the flame-retardant TPU film comprises the following raw materials in parts by weight: 45-50 parts of TPU, 7-11 parts of a modified additive, 6-9 parts of a chemical resistant agent, 5-8 parts of a flame retardant, 3-5 parts of a flexibilizer, 2-3 parts of an antioxidant, 2-3 parts of a silane coupling agent and 1-3 parts of a lubricant. According to the TPU thin film, TPU is adopted as a matrix, the flame retardant, the flexibilizer, the antioxidant, the silane coupling agent and the lubricant are added to serve as functional auxiliaries, and meanwhile the modified additive and the chemical resistance agent are added to serve as blending raw materials, so that the flame retardance of a product is optimized, the coordinative improvement of water vapor blocking and tearing is achieved, and the ultraviolet-resistant and corrosion-resistant stability effects of the product are remarkable.

The invention relates to the technical field of macromolecules, and discloses a preparation method of modified polyurethane toughened epoxy resin, which comprises the following steps: by taking 4-(Boc-amino) phenylboronic acid, diethanol amine, 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and the like as raw materials, carrying out a series of chemical reactions to obtain a borate siloxane chain extender; the method comprises the following steps: adding a polyurethane prepolymer into the epoxy resin, participating in chain extension of polyurethane, and modifying the epoxy resin by using the polyurethane prepolymer to obtain the modified polyurethane toughened epoxy resin. A'soft segment 'and an Si-O structure in the modified polyurethane can also improve the flexibility of a curing network, effectively change the fracture mechanism of the resin, absorb a large amount of energy when the resin is fractured, and contribute to improving the toughness of the epoxy resin; on the basis of ensuring the strength of the epoxy resin, the toughness and flame retardant property of the epoxy resin are improved, and the epoxy resin can be applied to the fields of composite materials, coatings, adhesives and the like with higher toughness and flame retardant requirements, and has wide applicability.

The invention discloses a scratch repair coating and a preparation method thereof, and relates to the technical field of high polymer materials. When the scratch repair coating is prepared, hydroxylated boron nitride reacts with 1-(3-triethoxysilylpropyl)-2-imidazoline to prepare pre-modified boron nitride, and then the pre-modified boron nitride and 4-chloro-1-butene are subjected to quaternization to prepare modified boron nitride; the preparation method comprises the following steps: reacting styryl phosphonic dichloride with 4, 4, 5, 5, 6, 6, 7, 7, 7-nonafluoro-1, 2-heptanediol to prepare a hydroxyl-terminated phosphorus-fluorine-containing polymer; the preparation method comprises the following steps: reacting isophorone diisocyanate with a hydroxyl-terminated phosphorus and fluorine-containing polymer to prepare a polyurethane prepolymer; reacting the polyurethane prepolymer with hydroxyl-terminated coumarin to generate modified polyurethane; and uniformly mixing the modified polyurethane, the modified boron nitride and a photoinitiator to prepare the scratch repair coating. The scratch repairing coating prepared by the invention has good self-repairing performance, flame retardant property, corrosion resistance and mechanical property.

The invention discloses a wear-resistant and impact-resistant composite PVC material and a preparation method thereof, and belongs to the technical field of high polymer materials, the wear-resistant and impact-resistant composite PVC material comprises the following raw materials by weight: 80-100 parts of epoxy polyvinyl chloride, 10-15 parts of a plasticizing stabilizer, 10-12 parts of an impact modifier, 0.5-2 parts of a lubricant, 5-10 parts of a filler, 2-3 parts of an antioxidant and 2-3 parts of a heat stabilizer; the preparation method comprises the following steps: preparing a metal soap stabilizer, absorbing pyrolysis gas, decomposing to generate metal chloride, enhancing the flame retardant property of the material, and uniformly dispersing the metal soap stabilizer as a filler in the material, so that an epoxy group in the prepared modifier absorbs hydrogen chloride and hybridizes a polyvinyl chloride chain segment at the same time, thereby enhancing the flame retardant property of the material. And a double-bond structure reacts with pyrolysis free radicals to generate an annular structure, so that the impact resistance of the material is enhanced.

The present invention relates to the technical field of regenerated plastics, and in particular relates to a flame-retardant regenerated plastic and a preparation method therefor. The regenerated plastic comprises the following specific components: 90-100 parts of regenerated high-density polyethylene, 5-10 parts of high-density polyethylene, 1-2 parts of calcium stearate, 1-2 parts of carbon black, 8-12 parts of maleic-anhydride-grafted polyethylene, 2-3 parts of an antioxidant, and 6-8 parts of a polyurethane elastomer. The regenerated high-density polyethylene is used as a main material, the high-density polyethylene is added thereto, the maleic-anhydride-grafted polyethylene is used as a compatibilizer, and then polyhydroxy polybutadiene, epoxidized hydroxyl-terminated polybutadiene and polypropylene oxide glycol are compounded and react with diphenylmethane diisocyanate to generate a polyurethane elastomer, thereby toughening the regenerated polyethylene; moreover, a flame-retardant effect is achieved by means of the synergy of phosphorus and nitrogen; therefore, a regenerated polyethylene plastic with high tensile strength and good flame-retardant performance is prepared. The regenerated plastic can be widely used in a plurality of fields, and has a relatively high level of practicability.

The invention discloses a heat-resistant flame-retardant reinforced polyamide composition as well as a preparation method and application thereof, and the heat-resistant flame-retardant reinforced polyamide composition comprises the following raw materials in parts by weight: 30-41 parts of polyamide, 15-20 parts of a flame retardant, 2-5 parts of a synergistic flame retardant, 10-20 parts of syndiotactic polystyrene, 2-8 parts of a compatilizer and 10-30 parts of glass sheets. The polyamide comprises one or more of PA66 (polyamide 66) and PA6 (polyamide 6); the compatilizer comprises maleic anhydride grafted syndiotactic polystyrene; according to the invention, syndiotactic polystyrene with excellent dimensional stability and polyamide are selected for composite modification, so that the obtained composition has the advantages of high dimensional stability, low warpage, excellent mechanical property, flame retardance and heat resistance, simple process, good processability and low cost. And the composite material can meet the fields of automobiles, electronic appliances, traffic equipment, aerospace automobiles, electric tools and sports equipment with high requirements on dimensional stability, warping property, strength, flame retardance and heat resistance.

The invention discloses a flame-retardant high-temperature-resistant fiber and a preparation method thereof, and relates to the technical field of fibers. When the flame-retardant high-temperature-resistant fiber is prepared, 1, 6-hexamethylenediamine, 1, 6-adipic acid, tetrahydrodifuran [3, 4-B: 3 ', 4'-D] furantetraone and a phosphorus-sulfur composite flame retardant are copolymerized to generate a polyamide-polyamide acid solution; 4-aminopyridine and the polyamide-polyamide acid solution are subjected to a reaction, and modified polyamide is prepared; the modified polyamide is subjected to melt spinning, and polyamide fibers are prepared; the preparation method comprises the following steps: pretreating nano titanium dioxide by using 4-bromobutyl trimethoxy silane to prepare modified nano titanium dioxide; mixing the modified nano titanium dioxide and ethanol to prepare a light-resistant antibacterial finishing agent; and carrying out post-treatment on the polyamide fiber by using an anti-light antibacterial finishing agent to prepare the flame-retardant and high-temperature-resistant fiber. The prepared fiber is excellent in comprehensive performance, particularly outstanding in flame retardance and high temperature resistance, and suitable for the fields of special protective clothing, high-temperature filtering materials and the like.

The invention discloses a high-bonding-strength flame-retardant composite current collector base film and a preparation method thereof. The high-bonding-strength flame-retardant composite current collector base film is prepared from the following raw materials in parts by weight: 100 parts of PP resin, 1.5 parts of a lubricant, 0.8 part of an antioxidant and 16 parts of reinforced flame-retardant composite particles, the reinforced flame-retardant composite particles are prepared by the following steps: S1, preparing amidated porous carbon microspheres; s2, compounding the amidated porous carbon microspheres with mica powder to prepare a composite carrier; s3, loading a flame retardant to prepare a flame-retardant compound; s4, in-situ grafting of maleic anhydride grafted polypropylene is carried out, and the reinforced flame-retardant composite particles are obtained. By adding the reinforced flame-retardant composite particles into the PP resin, the flame retardance and mechanical strength of the PP-based composite current collector base film and the interface bonding force between the PP base film and the metal conductive layer can be comprehensively improved.

The invention discloses a bio-based polyurethane coating and a preparation method thereof, and belongs to the technical field of coatings. The bio-based polyurethane coating comprises the following raw materials in parts by weight: 100 parts of vegetable oil polyol, 70-120 parts of isocyanate, 10-25 parts of a flame retardant, 30-40 parts of an organic solvent, 1-5 parts of a catalyst, 10-30 parts of a hydrophilic chain extender, 10-30 parts of a neutralizer and 20-40 parts of deionized water. The preparation method comprises the following steps: adding plant polyol, isocyanate, a flame retardant, an organic solvent and a catalyst into a container, mixing and reacting to obtain a prepolymer mixed solution, then adding a hydrophilic chain extender, mixing and reacting to obtain a polymer mixed solution, cooling, then adding a neutralizer for neutralizing, then adding deionized water for emulsifying to form a polyurethane emulsion, and finally adding a curing agent for curing. And performing reduced pressure distillation to obtain the bio-based polyurethane coating. According to the invention, biomass-sourced acid reacts with the organosilicon compound to generate the flame retardant, and the prepared bio-based polyurethane coating has good flame retardant property.

The invention belongs to the field of environment-friendly materials, and particularly discloses a method for preparing a high-performance exterior wall flame-retardant material from waste plastics. Through a unique formula, for example, waste polyethersulfone and the like are used as base materials, a waste basalt fiber and MOF derived carbon nanosheet composite reinforced phase, multiple novel flame retardants and the like are added, and innovative processes including pulsed electric field treatment, carbon dioxide supercritical fluid assistance and the like are combined, so that the material performance is remarkably improved. The tensile strength, the thermal stability, the flame retardant property and the like of the material are greatly enhanced, the material also has multiple functions of flexibility, self-cleaning, antibiosis and the like, and a new way is provided for high-value utilization of waste plastics and performance optimization of exterior wall materials.

The invention discloses a heat insulation aluminum profile and a preparation method thereof, and belongs to the technical field of aluminum profile preparation. The heat insulation coating is electrostatically sprayed on the surface of the aluminum profile, the coating takes epoxy resin as a matrix, the aluminum profile is separated from the external environment, and the corrosion resistance and the heat insulation performance of the aluminum profile are improved; compared with common nano ATO, the prepared modified nano ATO has better compatibility with an epoxy resin matrix, the agglomeration phenomenon is obviously reduced, and the heat insulation performance of the coating can be greatly enhanced; the prepared modifier can significantly enhance the flame retardance and heat resistance of the coating, can promote curing of epoxy resin, is grafted on nano ATO, and is stable in performance and not prone to falling off; therefore, the prepared aluminum profile is excellent in heat insulation property and corrosion resistance, the coating sprayed on the surface of the aluminum profile has stable and efficient flame retardance and heat resistance, and the aluminum profile has important application value in the technical field of aluminum profile preparation.