35results about How to "Has synergistic flame retardant effect" patented technology

The invention provides a phosphorus / silicon-containing reactive high-molecular flame retardant, and a preparation method and application thereof, relating to flame retardants. The preparation method comprises the following steps: reacting methacryloyl chloride and p-phenylenediamine in the presence of a solvent and an acid-binding agent, carrying out vacuum filtration to remove the acid-binding agent salt generated by the reaction, and purifying the crude product by water washing, rotary evaporation and drying to obtain 4-methacrylamidoaniline; reacting hydroxyethyl methacrylate and 9,10-dihydro-9-oxa-10-phosphaphenanthryl-10-oxide in the presence of carbon tetrachloride, a solvent and an acid-binding agent, carrying out vacuum filtration to remove the acid-binding agent salt generated by the reaction, and purifying the crude product by water washing, rotary evaporation and drying to obtain a phosphorus-containing monomer; and carrying out free-radical polymerization on the 4-methacrylamidoaniline, phosphorus-containing monomer and methylacryloyloxypropyl heptaisobutyl POSS (polyhedral oligomeric silsesquioxane) under the initiation conditions of a solvent and an initiator to obtain the phosphorus / silicon-containing reactive high-molecular flame retardant. The phosphorus / silicon-containing reactive high-molecular flame retardant can be used for preparing a flame-retardant epoxy resin.

The invention discloses a preparation method of a phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material, which comprises the following steps: in the presence of a solvent and an initiator, carrying out free-radical polymerization on glycidyl methacrylate, phosphorus-containing monomer and acryloyloxypropyl heptaisobutyl POSS (polyhedral oligomeric silsesquioxane) to obtain a phosphorus-containing POSS-base compound, uniformly mixing an epoxy resin and the phosphorus-containing POSS-base compound at certain temperature, adding a curing agent, evenly mixing, pouring into a mold, and removing bubbles in vacuum; and finally, curing, and demolding to obtain the phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material. The phosphorus-containing flame-retardant POSS / epoxy resin hybrid material is free of halogen, has the advantages of no toxic or side effect, simple technique, favorable flame retardancy, low manufacturing cost and high transparency, and can be widely used in the fields of manufacturing of optical components, LED (light-emitting diode) packaging and the like.

The invention provides a phosphorus-containing fluorine-containing synergic flame-retardant compound and a preparation method thereof, relating to flame-retardant compounds. The preparation method comprises the following steps: carrying out reaction on a diamido compound and 5-bis(trifluoromethyl)benzaldehyde in a first solvent, carrying out rotary evaporation, and drying to obtain an intermediate containing carbon-nitrogen double bond; and carrying out reaction on the intermediate containing carbon-nitrogen double bond and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in a second solvent, precipitating the product with a precipitant, washing with the precipitant, and drying to obtain the phosphorus-containing fluorine-containing synergic flame-retardant compound. The compound simultaneously comprises the flame-retardant elements phosphorus and fluorine, and the phosphorus and fluorine have the synergic flame-retardant actions; and thus, the compound can be used as a flame retardant and has favorable flame-retardant effect. The introduced fluorine element can enhance the heat stability and chemical stability, lower the surface energy of the material and lower the dielectric constant and hydroscopic property of the material, thereby satisfying the required properties of the electronic packaging material. The compound contains two active groups, thereby being beneficial to enhancing the compatibility with the high-polymer material, improving the loss of the flame retardant and enhancing the flame retardancy.

Belonging to the technical field of fireproof material development, the invention specifically relates to a composite flame retardant and a method for preparation of a flame retardant fiber board from the same. The composite flame retardant is composed of aluminum hydroxide, borax and sodium silicate in a mass ratio of 4-6:3-5:2-4. The composite flame retardant provided by the invention has the advantages of good flame retardant effect, low toxicity, good smoke suppression and environmental friendliness, can significantly improve the flame retardant properties of the fiber board, and has cheap price, thus being suitable for industrial production of the flame retardant fiber board.

The invention relates to a method for preparing nitrogen phosphate sulfur-containing reactive flame retardant applied to epoxy resin. The preparation method comprises the following steps: sequentially adding p-hydroxy benzaldehyde, aminothiazole and a solvent into a reactor which is provided with a condensing pipe and a stirrer, and introducing inert gas to perform first reaction; adding 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to carry out second reaction; and pumping, filtering, washing and drying the system to obtain white or light brown nitrogen phosphate sulfur-containing reactive flame retardant after the reaction is completed. The method has the advantages that 1, the synthesizing process is short, the cycle is short, post-treatment is easy, and control and industrial production are easy; 2, the prepared flame retardant contains nitrogen, phosphate and sulfur three flame-retardant elements at the same time, has a synergistic flame-retardant effect, and can be used for remarkably improving the flame retarding performance of epoxy resin; and 3, the prepared flame retardant is a reactive flame retardant, and can be used for keeping stability and mechanical performance of cured epoxy resin while improving the flame retarding effect of the cured epoxy resin.

The invention relates to a preparation method of polyurethane fireproof glue used for a building. The polyurethane fireproof glue used for the building is prepared by mixing a prepolymer component anda polyol component, wherein the prepolymer component is prepared from diisocyanate, antimony trioxide, asbestos fiber, polypropylene carbonate polyol and a catalyst, and the polyol component is prepared from polypropylene carbonate polyol, a chain extender, a crosslinking agent and bromine-containing polyol; and antimony trioxide, asbestos fiber, bromine-containing polyol have a synergistic flameretardant effect, and the obtained fireproof glue can give consideration to flame retardant property, flame retardant durability and mechanical properties at the same time.

The invention relates to the technical field of anti-rut agents, and particularly discloses an anti-rut agent and a preparation method thereof. The anti-rut agent comprises polyethylene, an inorganic filler, an organic modifying agent, a color master batch and flame retardant. By coating the inorganic filler and the flame retardant with the polyethylene and the organic modifying agent, the anti-rut agent accelerates the formation of a polymer and asphalt into a network crosslinked structure, thereby reducing ruts on an asphalt mixture pavement. Meanwhile, the flame-retardant component dispersed in the asphalt crosslinked structure can be decomposed under a high-temperature condition to achieve a surface coating effect, thereby effectively inhibiting the spreading and persistency of fire. Besides, the invention also provides an asphalt mixture containing the anti-rut agent.

The invention discloses a low-aldehyde high-temperature-resistant polyurethane material, belonging to the technical field of polyurethane materials. Lignin is taken as a raw material, lignin amido polyhydric alcohol is formed and is taken as a prepolymer raw material of the polyurethane material, and when water is added as a foaming agent in the later period, polyurethane material can be well bound with water so as to form foam holes; 4(4-hydroxy-phenyl)-2,3-diazaone containing a heterocyclic ring bisphenol structure is introduced, sodium hydroxide and epoxy chloropropane are added, and epoxyresin is introduced into a rigid polyurethane foam structure, so that the heat resistance of polyurethane is integrally improved; by adding cetane into an emulsifying agent, namely a styrene-maleic anhydride copolymer, the material has a thermal insulation effect; the surface of brucite powder is covered with polyphosphoric acid and lauryl amine so as to form a flame-retardant activating agent, and a thermal insulation protection layer is formed by magnesium oxide, so that a synergistic flame retardant function is realized. According to the preparation method, the problems of poor high temperature resistance and flame retardance of existing polyurethane materials are solved.

The invention discloses a preparation method of regenerated fibers. The preparation method comprises the following steps: step 1, carrying out primary treatment on waste raw materials; step 2, mixing,melting and granulating; step 3, preparing graphene master batch; step 4, mixing modified polyester fiber master batch and the graphene master batch and melting; blending to obtain regenerated modified polyester fibers; step 5, loosening, carding and crossly lapping; then carrying out bundle cutting and packaging. Aiming at improving the quality of the raw materials, a raw material mixing processis carried out under a vacuum environment; the raw materials are sufficiently mixed and the quality of a finished product is improved. A phosphorus polymer, such as triphenyl phosphate or trimethyl phosphate is added by adopting a spraying manner, so that on one hand, the phosphorus polymer can be used for effectively inhibiting irreversible decomposition of the polyester fibers under a high-temperature condition and damages to ester group functional groups are avoided; on the other hand, the phosphorus polymer and graphene are subjected to oxidization reaction and have a synergistic flame-retarding effect. Furthermore, the regenerated fibers prepared by the invention have antistatic and bacterium-inhibiting effects.

The invention relates to the technical field of wood processing and particularly relates to a wood composite flame retardant and a preparation method thereof, and an application thereof in production of flame retarding plywood. The wood composite flame retardant includes, by weight, 25-35 parts of melamine, 5-15 parts of sodium dihydrogen phosphate, 0.1-0.5 parts of sodium hydroxide, 30-40 parts of borax and 30-40 parts of boric acid. The raw materials of the wood composite flame retardant have synergistic flame retarding effects, so that the flame retardant is good in flame retarding effect, is low-toxicity, has good smoke inhibition property and is environment-friendly, and is also low in cost. The flame retarding plywood produced from the flame retardant is significantly improved in flame retarding performance, which can reach C-level fireproofing grade in national standard. Bonding strength and maximum fracture load of the plywood are approximated to plywood produced without the flame retardant.

The invention provides a preparation method of flame-retardant cool cellulose fibers for summer curtains. The preparation method comprise the following steps of preparing a composite flame retardant slurry, preparing an ice-cooling agent slurry, preparing a blended spinning solution, and performing spinning. The flame retardant contains magnesium hydroxide microcapsules, and rare earth lanthanum chloride microcapsules are added into the composite flame retardant, so that the flame retardant effect of the flame retardant can be enhanced, lanthanum chloride has a relatively good antibacterial effect, and therefore a curtain prepared from the fiber has a relatively good antibacterial effect. The dry breaking strength of the prepared fiber is 1.86-2.13 cN / dtex, the wet breaking strength is 0.95-1.16 cN / dtex, the limit oxygen index is 28.3-30.6%, the staphylococcus aureus inhibition rate is 99.2-99.9%, the escherichia coli inhibition rate is 98.6-99.9%, the UPF value is 42-44, and the UVA value is 3.92-4.65%.

The invention discloses a halogen-free flame-retardant TPVC ( polyvinyl chloride elastomer) material and a preparation method therefor. The halogen-free flame-retardant TPVC material is prepared from the following components in parts by weight: 100 parts of PVC resin, 50-100 parts of a plasticizer, 5-10 parts of a heat stabilizer, 2-4 parts of a lubricant and 40-100 parts of a halogen-free flame retardant; the plasticizer consists of dioctyl terephthalate, epoxy fatty acid methyl ester, diphenyl isooctyl phosphate and chlorinated paraffin in a weight ratio of 100 to (10-20) to (100-50) to (5-15); and the halogen-free flame retardant consists of magnesium hydroxide, microencapsulated red phosphorus, antimonous oxide and zinc borate in a weight ratio of 100 to (10-20) to (5-15) to (5-15). The halogen-free flame-retardant TPVC material disclosed by the invention has relatively good flame resistance and mechanical properties, and belongs to a green environment-friendly material which is harmless on a human body and environment.

The invention discloses a coal mine roadway spraying material, and relates to the technical field of novel materials for mines. The material comprises a base layer and a surface layer, the base layer is prepared from the following raw materials in parts by weight: 25-35 parts of Portland cement, 25-35 parts of fly ash, 8-12 parts of clay, 4-8 parts of latex powder, 10-15 parts of a fiber reinforced material, 0.2-0.3 part of styrene-acrylic emulsion, 0.1-0.2 part of polyvinyl alcohol, 1-2 parts of water glass and 35-42 parts of water, the surface layer is a polyurethane layer, the supporting performance is excellent, corrosion and leakage are prevented, and safe production of a coal mine can be further ensured.

The invention relates to the technical field of wood processing, in particular to a wood composite flame retardant and a preparation method thereof and application to production of flame-retardant plywood. The composite flame retardant for the plywood is prepared from the following raw materials by weight: 60-100 parts of polyethylene glycol, 5-15 parts of sodium bicarbonate, 0.1-0.5 part of polypropylene resin, 30-40 parts of vinyl acetate and 30-40 parts of boric acid. The raw materials of the wood composite flame retardant have a synergistic flame-retardant effect, and the flame retardant has the beneficial effects of being good in flame-retardant effect, low in toxicity, good in smoke suppressing property and environmentally friendly, and is low in price. The flame-retardant performance of the flame-retardant plywood prepared through the wood composite flame retardant can be remarkably improved, and the requirement of the national standard C-level fireproof grade can be met. The gluing strength and the maximum failure load of the flame-retardant plywood are both similar to plywood not treated with the flame retardant.

The invention belongs to the technical field of adhesives, and particularly relates to a preparation method of a flame-retardant and waterproof adhesive for a corrugated carton. The preparation methodspecifically comprises the following steps: (1) an organic silicon modified emulsion is prepared; (2) a white prepolymer emulsion is prepared; (3) an acrylic modified flame-retardant organic siliconemulsion is prepared; and (4) 110-120 parts of the acrylic modified flame-retardant organic silicon emulsion is put into a high-speed mixer, 1.5-2.3 parts of carnallite powder, 24-27 parts of polyhalite powder and 5-7 parts of a flame retardant are added, even stirring and mixing are conducted, and then the flame-retardant and waterproof adhesive is obtained. The prepared adhesive is transparent,high in adhesion and good in stability, water-based adhesive bonding, quick drying, and acid and alkali resistance are achieved, no organic solvent is contained, the poisonless, tasteless, non-combustible, environment-friendly and pollution-free effects are achieved, and pollution-free production can be achieved. The flame-retardant and waterproof adhesive is suitable for the carton not coated andpolished, and the corrugated carton is protected very well.

The invention discloses a graphene-doped flame-retardant material and a preparation method thereof. The graphene-doped flame-retardant material comprises the following raw materials in parts by weight: 40-60 parts of polyether polyol, 100-130 parts of isocyanate, 30-50 parts of a flame retardant, 0.2-1 part of a catalyst, 5-10 parts of a chain extender, 2-8 parts of graphene filler, 1-5 parts of a stabilizer and 2-5 parts of deionized water. The preparation method comprises the following steps: S1, drying polyether polyol and isocyanate; S2, uniformly mixing and dispersing polyether polyol, a flame retardant, a catalyst, a chain extender, a graphene filler, a stabilizer and deionized water to obtain a mixture; S3, enabling isocyanate and the mixture to be subjected to a reaction, and preparing a graphene-doped flame retardant material. The flame-retardant material prepared by the invention is excellent in flame-retardant property, relatively good in mechanical property, relatively low in heat conductivity coefficient, relatively high in practical value and worthy of popularization.

The invention relates to a method for preparing nitrogen phosphate sulfur-containing reactive flame retardant applied to epoxy resin. The preparation method comprises the following steps: sequentially adding p-hydroxy benzaldehyde, aminothiazole and a solvent into a reactor which is provided with a condensing pipe and a stirrer, and introducing inert gas to perform first reaction; adding 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to carry out second reaction; and pumping, filtering, washing and drying the system to obtain white or light brown nitrogen phosphate sulfur-containing reactive flame retardant after the reaction is completed. The method has the advantages that 1, the synthesizing process is short, the cycle is short, post-treatment is easy, and control and industrial production are easy; 2, the prepared flame retardant contains nitrogen, phosphate and sulfur three flame-retardant elements at the same time, has a synergistic flame-retardant effect, and can be used for remarkably improving the flame retarding performance of epoxy resin; and 3, the prepared flame retardant is a reactive flame retardant, and can be used for keeping stability and mechanical performance of cured epoxy resin while improving the flame retarding effect of the cured epoxy resin.

The invention discloses a cable protection material. The material is prepared from the following raw materials in parts by weight: 50-55 parts of antimony trioxide, 13-15 parts of nitrile butadiene rubber, 69-12 parts of glass fiber, 14-16 parts of carbon fiber, 0.6-0.8 part of tetrabromobisphenol A, 1.3-2 parts of a titanate coupling agent 102, 5-8 parts of EVA, 3-5 parts of styrene butadiene rubber, 2-4 parts of vinyl acetate, 2-3 parts of a nitrile butadiene rubber blend powder, 3-4 parts of dibromo neopentyl glycol, 4-5 parts of chloroprene rubber, 0.4-0.6 part of an antioxidant 1010, andan appropriate amount of deionized water. The optical fiber material has excellent oil-proof performance, high strength, good comprehensive performances and long service life.

The invention belongs to the technical field of flame-retardant macromolecules, and particularly discloses a melamine cyanurate derivative covalent triazine framework flame retardant, a preparation method and application thereof. The preparation method comprises the steps that firstly, phosphorus-chlorine groups of phenyl phosphoryl dichloride react with amine in melamine cyanurate, so that hydrogen bonds in the melamine cyanurate are reduced, and the purpose of reducing the group polarity is reached, then on the basis, the preparation method of the melamine cyanurate derivative covalent triazine framework flame retardant is developed, and the melamine cyanurate derivative covalent triazine framework flame retardant is applied to flame-retardant epoxy resin.

The invention relates to the technical field of wood processing, in particular to a composite flame retardant for preparing a plywood, as well as a preparation method and application thereof in producing the plywood. The composite flame retardant for preparing the plywood is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyvinyl alcohol, 5 to 15 parts of antimonous oxide, 0.1 to 0.5 part of magnesium oxide, 30 to 40 parts of nano-montmorillonite, and 30 to 40 parts of urea. According to the composite flame retardant provided by the invention, the raw materials have synergistic flame retardance, so that the composite flame retardant has the advantages of good flame retardant effect, low toxicity, good smoke suppression and environment protection, and is low in price; and according to the flame-retardant plywood prepared through the flame retardant provided by the invention, the flame retardant property of the flame-retardant plywood can be remarkablyimproved, and the flame-retardant plywood can meet the requirement of the national standard C-grade fireproof grade.

The invention discloses a preparation method of a phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material, which comprises the following steps: in the presence of a solvent and an initiator, carrying out free-radical polymerization on glycidyl methacrylate, phosphorus-containing monomer and acryloyloxypropyl heptaisobutyl POSS (polyhedral oligomeric silsesquioxane) to obtain a phosphorus-containing POSS-base compound, uniformly mixing an epoxy resin and the phosphorus-containing POSS-base compound at certain temperature, adding a curing agent, evenly mixing, pouring into a mold, and removing bubbles in vacuum; and finally, curing, and demolding to obtain the phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material. The phosphorus-containing flame-retardant POSS / epoxy resin hybrid material is free of halogen, has the advantages of no toxic or side effect, simple technique, favorable flame retardancy, low manufacturing cost and high transparency, and can be widely used in the fields of manufacturing of optical components, LED (light-emitting diode) packaging and the like.

The invention belongs to the technical field of fireproof material development, and specifically relates to a composite flame retardant and a method for preparing a flame retardant fiberboard. A composite flame retardant is composed of aluminum hydroxide, borax and sodium silicate, and the mass ratio of aluminum hydroxide, borax and sodium silicate in the composite flame retardant is 4‑6:3‑5:2 ‑4. The composite flame retardant of the invention has the advantages of good flame retardant effect, low toxicity, good smoke suppression and environmental friendliness, can remarkably improve the flame retardant performance of the fiberboard, is cheap, and is suitable for industrial production of the flame retardant fiberboard.

The invention discloses an additive for flame-retardant adhesive as well as the flame-retardant adhesive and an application method thereof. The additive for the flame-retardant adhesive is prepared from the following raw materials: molybdenum trioxide, diatomaceous earth, mineral oil, silica gel powder, ethylene bis stearamide and polyethylene glycol; the flame-retardant adhesive is prepared fromthe following raw materials: an ethylene-vinyl acetate copolymer, polyurethane resin, glyceryl tristearate, the additive for the flame-retardant adhesive, a bacteriostatic agent, a heat stabilizer anda diluent; the application method comprises the steps of adding diluent into the flame-retardant adhesive according to the required viscosity before use, evenly mixing, and detecting the viscosity ofthe flame-retardant adhesive for use. The additive for the flame-retardant adhesive is reasonable in formula and good in flame-retardant effect, does not contain phosphorus element, and does not cause pollution to the environment; the prepared flame-retardant adhesive is easy in obtaining of raw materials, has good adhesion, flame retardance, antibacterial property and stability, and is simple inpreparation method and good in mixing effect; the viscosity of the flame-retardant adhesive can be adjusted according to the needs, so that the application scope of the flame-retardant adhesive is wide.