37results about How to "Synergistic flame retardant effect is good" patented technology

The invention provides an environment-friendly fireproof material for electrical equipment and a preparation method of the environment-friendly fireproof material, and belongs to the fields of fireproof materials and preparation technologies thereof. The environment-friendly fireproof material for the electrical equipment is characterized by being prepared from the following raw materials in parts by weight: 50 to 60 parts of modified epoxy resin, 30 to 40 parts of fluorocarbon resin, 60 to 90 parts of a fire retardant, 3 to 10 parts of expanded graphite, 3 to 10 parts of alumina silicate fiber and 2 to 8 parts of molecular sieves. The fireproof material provided by the invention is applied to fire protection of the electrical equipment, and is high in crack resistance, water resistance and weather resistance and good in expansion character; meanwhile, the heat release rate of a base material in a burning condition can be obviously reduced, and the quality loss is reduced; moreover, the fireproof material is small in smoke production quantity and good in environmental protection effect.

The invention relates to a grade-1E K2-type radiation cross-linked halogen-free flame-retardant cable material for a nuclear power plant and a preparation method thereof, belonging to the field of new chemical materials. The cable material comprises raw materials including base resin EVA (ethylene-vinyl acetate copolymer), flame retardants A and B, a flame retardant synergist, basic antioxidants 1010 and 168, a radiation-resistant auxiliary agent 4,4'-thiobis(6-tertiary-butyl-3-methylphenol) and a processing agent; and the preparation method comprises the process steps of material weighing, pretreatment, mixing, extrusion granulation, drying and the like. The cable material is a red-phosphorus-free halogen-free environment-friendly flame-retardant material, phenoxy polyphosphazene is used as a main flame retardant in a flame-retardant system of the cable material, an inorganic flame retardant is auxiliary, the flame-retardant system accounts for a small weight percentage of the material, and the cable material is high in flame-retardant efficiency and excellent in mechanical properties, processability and radiation resistance, so that the cable material is a novel environment-friendly flame-retardant material which has excellent comprehensive properties and is suitable for a nuclear power plant environment.

The invention relates to a polypropylene carrier high-efficiency halogen-free flame-retardant master batch and a preparation method thereof. The preparation method comprises the steps: a polypropylenematrix and an additive are subjected to melt blending to prepare a polypropylene carrier high-efficiency halogen-free flame-retardant master batch; the additive comprises a flame-retardant filler, the polypropylene matrix is polypropylene random copolymer, and the flame-retardant filler is a flame-retardant filler subjected to double-coating, wherein the double-coating process comprises the steps: treating the flame-retardant filler with a coupling agent is treated, and the treated flame-retardant filler and homo-polypropylene are subjected to melt extrusion granulation and then ground. The finally prepared polypropylene carrier high-efficiency halogen-free flame-retardant master batch is mainly composed of the polypropylene random copolymer and the double-coated flame-retardant filler dispersed in the polypropylene random copolymer; the polypropylene carrier high-efficiency halogen-free flame-retardant master batch has excellent flame retardancy, and the material modified by the polypropylene carrier high-efficiency halogen-free flame-retardant master batch has excellent mechanical properties. The method is simple and feasible; the flame-retardant master batch prepared by the method is excellent in flame-retardant effect, does not cause reduction of mechanical properties of the modified material, and completely meets environmental protection requirements due to a halogen-freeflame-retardant system.

The invention relates to the field of photovoltaic packaging materials and particularly relates to an illite/smectite clay containing anti-PID functional master batch for a photovoltaic packaging filmand a preparation method for the illite/smectite clay containing anti-PID functional master batch. The master batch is prepared from the following ingredients in percentage by weight: 50% to 88% of EVA resin, 4% to 20% of modified zirconium phosphate crystal, 0.5% to 10% of cross-linker, 0.5% to 2.5% of silane coupler, 5% to 15% of nano illite/smectite clay and the balance of auxiliaries. According to the illite/smectite clay containing anti-PID functional master batch for the photovoltaic packaging film and the preparation method for the illite/smectite clay containing anti-PID functional master batch, the defect in the prior art that master batches for photovoltaic packaging films do not have an anti-PID function and thus performance of batteries is low is overcome; the illite/smectiteclay containing anti-PID functional master batch for the photovoltaic packaging film, prepared by the method, has a good anti-PID function; meanwhile, a top-class flame-retardant effect is achieved under the condition of not additionally adding flame retardants; and furthermore, the illite/smectite clay containing anti-PID functional master batch further has the advantages that the antibacterial and mildewproof effect is good, meanwhile, toxic and harmful substances in the functional master batch can be remarkably reduced, and the like.

The invention relates to a flame-retardant polyamide fiber and a preparation method thereof. The preparation method comprises the steps of performing melt blending on polyamide, melamine cyanurate, graphite-like carbon nitride, a zinc compound and a 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative to prepare a flame-retardant polyamide slice, performing melt spinning and drafting winding, or performing melt blending on the substances to prepare flame-retardant masterbatch, adding 8.25-25wt% of the flame-retardant masterbatch in a direct spinning process of the polyester slice or a melt to perform melt spinning and drafting winding, wherein the prepared flame-retardant polyamide fiber is made from the flame-retardant polyamide, and in parts by mass, the flame-retardant polyamide is mainly composed of 92-95.8 parts of the polyamide, 1-2 parts of the melamine cyanurate, 0.1-0.5 parts of the graphite-like carbon nitride, 0.1-0.5 parts of the zinc compound and 3-5 partsof the DOPO derivative. The preparation process is simple, and the prepared flame-retardant polyamide fiber has the relatively good mechanical property and flame retardant property.

The invention relates to the field of a polymer composite material, in order to solve the problems of inferior fireproof safety, anti-ageing effect and inflammable property of most polymer materials. The invention provides a preparation method for an organic silicon and graphene oxide synergistic flame retardant polymer composite material. According to a method for respectively wrapping graphene oxide and organic silicon resin on the surface of a flammable polymer material, the excellent high temperature resistance and synergistic flame retardant effect of the graphene oxide and organic silicon resin are utilized to realize the efficient flame retardant fireproof property of the flammable polymer material, and meanwhile, the physical properties of the polymer material are effectively maintained.

The invention discloses a halogen-free fire-retardant foam and relates to the technical field of foam material preparation. According to the technical scheme, the halogen-free fire-retardant foam is characterized by including, by weight part, 52-62 parts of toluene diisocyanate, 45-55 parts of polypropylene glycol, 45-55 parts of polyether polyol, 4.1-5.1 parts of water, 0.1-0.2 part of polyurethane catalyst, 0.1-0.5 part of organo-tin catalyst, 0.8-1.6 parts of foam stabilizer, 6-10 parts of auxiliary foaming agent and 8-12 parts of halogen-free fire-retardant agent. The halogen-free fire-retardant foam solves the problem that foams are inflammable, high in smokiness and prone to producing toxic and hazardous gas during combustion; the halogen-free fire-retardant agent can improve the fire resistance of the halogen-free fire-retardant foam and ensure that the halogen-free fire-retardant foam can be low in smokiness and free from toxic and hazardous gas during combustion.

The present invention relates to a semi-aromatic PA6T/6 composite material, particularly to an organic montmorillonite (OMMT)/halogen-free diphosphonate fire retardation PA6T/6 composite material and a preparation method thereof. The organic montmorillonite (OMMT)/halogen-free diphosphonate fire retardation PA6T/6 composite material comprises, by mass, 20-200 parts of a PA6T/6 resin, 5-50 parts of a halogen-free diphosphonate fire retardation agent, and 1-10 parts of organic montmorillonite. The fire retardation composite material of the present invention has characteristics of high fire retardation efficiency, halogen-free fire retardation, green environmental protection, low harm on human health, low environment pollution, high fire retardation grade, and significant effect.

The invention discloses a preparation method of compound flame-retardant wood, and belongs to the technical field of wood flame retardance. The invention aims to solve the problems of poor flame retardant effect of boric acid and poor loss resistance of wood treated by sodium silicate in the prior art. The preparation method comprises the following steps: I, impregnating wood with silicate; and 2, boric acid dipping. The method is used for preparing the compound flame-retardant wood.

The invention provides a flame-retarding and antistatic friction liner. The flame-retarding and antistatic friction liner is prepared from the following raw materials in parts by weight: 100 to 250 parts of cashew nut oil modified phenol formaldehyde resin, 5 to 30 parts of rubber powder, 10 to 20 parts of calcium sulfate whiskers, 10 to 30 parts of an antistatic agent, 10 to 20 parts of barium sulfate, 5 to 10 parts of bronze powder, 5 to 10 parts of iron powder, 1 to 10 parts of a toner, 1 to 5 parts of a coupling agent, 2 to 5 parts of wollastonite, 1 to 10 parts of sulfur, 3 to 5 parts of zinc oxide, 0 to 2 parts of stearic acid, 10 to 50 parts of hydrogenated nitrile butadiene rubber, 5 to 15 parts of micro-encapsulated red phosphorus, 5 to 30 parts of ammonium polyphosphate, 10 to 20 parts of dibutyl phthalate, 1 to 3 parts of an accelerant M, 0.5 to 1 part of an accelerant TMTD (Tetramethylthiuram Disulfide), 1 to 5 parts of an accelerant H and 1 to 3 parts of an antioxidant 1010. The invention further provides a preparation method. The flame-retarding and antistatic friction liner has stable friction coefficient, high strength and low abrasion loss, and flame-retarding and antistatic properties.

The invention discloses a waterborne polyurethane PE/POE composite waterproof coiled material and a preparation method and application thereof. The waterborne polyurethane PE/POE composite waterproof coiled material comprises a waterborne polyurethane adhesive, a PE/POE composite film base (1) and a protective liner (2), the waterborne polyurethane adhesive is uniformly coated on a single face of the PE/POE composite film base (1), the edge of the PE/POE composite film base (1) is provided with a gap, the coating thickness is 0.1 mm-0. 3mm, and a waterborne polyurethane PE/POE composite film (a) is formed through compounding; and uniformly coating the self-adhesive glue on the margin at the edge of the PE/POE polymeric membrane (a), and compounding the PE/POE polymeric membrane (a) with the protective liner (2) to form the waterborne polyurethane PE/POE composite waterproof coiled material with the total thickness of 0.6-1.5 mm, wherein the coating thickness is 0.1-0.3 mm. The waterborne polyurethane PE/POE composite waterproof coiled material prepared by the invention has the properties of flame retardance, high toughness, high elasticity, high strength, high elongation, high puncture resistance strength, good low-temperature property, chemical resistance and the like, and also has the characteristics of environment friendliness, no pollution, simplified construction process and the like.

The invention discloses a red phosphorus master batch flame retardation PTT polyester and a preparation method therefor. The red phosphorus master batch flame retardation PTT polyester comprises the following ingredients, by weight, 60%-80% of PTT, 10%-15% of red phosphorus master batch, 8%-15% of glass fibers, 2%-8% of POE, 1%-4% of calcium oxide, 0.1%-0.5% of aluminum titanium composite coupling agents, 0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The calcium oxide is calcium oxide particles with a particle size of being less than 5 micrometers. The beneficial effects are that the red phosphorus master batch is employed as a flame retardant, the flame retardation of PTT is raised, and the tensile strength, the bending strength and the CTI value of PTT are also raised obviously; a proper amount of calcium oxide is added for strengthening, a proper amount of POE is added for toughening, calcium oxide and the red phosphorus master batch has good flame retardant synergism effects, and the cost is lowered.