172results about How to "Good smoke suppression" patented technology

The invention discloses a fire-retardant polyolefin based wood plastic composite material and a preparation method thereof, and relates to a wood plastic composite material and a preparation method thereof, and the composite material and method provided by the invention can be used for solving problems that the existing fire-retardant wood plastic composite material has high heat release efficiency in burning and high smoke production, and can generate CO harmful gas easily. The flame-retardant polyolefin based wood plastic composite material is prepared from wood fiber materials, plastics, acoupling agent, a lubricant, an antioxidant, a nano inorganic fire retardant and a mineral filler. The method comprises the following steps: putting the wood fiber materials, the coupling agent and the lubricant into a high-speed mixing machine for hot mixing; then putting into a cold mixing machine for cold mixing, sending the plastics, the antioxidant, the nano inorganic fire retardant and the mineral filler into the cold mixing machine and then mixing; and then carrying out fusing and extruding for granulation by adopting extruding, injection, hot compressing or mold compression for molding, thus the fire-retardant polyolefin based wood plastic composite material is obtained. The wood plastic composite material provided by the invention has low heat release rate in burning and less smoke production, and is healthy and environmentally-friendly, and can be widely applied to the fields of indoor construction, decoration and furnishing materials and the like.

The invention relates to an environmental protection based red mud combination modification synergism fire-retardant polyethylene, and belongs to the technical field of compressive utilization and fire-retardant plastics. The fire-retardant polyethylene is suitable for fire safety protection in important public places in the fields of electric products, building materials and transportation. The fire-retardant polyethylene consists of the following components in percentage by weight: 30 to 35 percent of polyethylene, 34 to 39 percent of red mud, 6 to 13 percent of red phosphorus, 5 to 17 percent of zinc borate, 3 to 8 percent of ethylene-vinyl acetate copolymer, 2 to 7 percent of grafted polyethylene, and 2 to 8 percent of silicone oil. The preparation process comprises the following steps of: grinding and drying the red mud; blending the ground red mud with other raw materials according to the blending ratio; mixing the mixture with polyethylene resin by fully stirring at a high speed; fusing, co-mixing and processing the mixture; and preparing a sample. The processing conditions comprise that: the roll temperature of a double-roller mixing mill is between 140 and 150 DEG C; and the forming temperature of the flat vulcanizing machine sample is between 120 and 130 DEG C, the heating time is between 4 and 8 minutes, and the pressure is between 10 and 20MPa. The fire-retardant system meets the requirements of industrial application on mechanical property, and simultaneously has comprehensive properties such as good fire-retardant effect, low cost, environmental protection and the like; moreover, the application field of the red mud is widened, and the red mud product with high added value is prepared.

The invention relates to a high-hardness wood-plastic building template and a preparation method thereof, which belong to the technical field of polyvinyl chloride plates. The 100 parts by weight of high-hardness wood-plastic building template comprises the following raw materials in parts by weight: 20-50 parts of polyvinyl chloride resin powder, 1-4 parts of a coupling agent, 2-5 parts of a stabilizing agent, 1-15 parts of an acrylic alkyl ester processing modifier; 1-15 parts of a filling agent, 1-4 parts of a lubricant, 1-4 parts of a foaming agent, 1-8 parts of a toughening agent, 30-50 parts of wood flour, and 5-10 parts of a reinforcing agent. According to the invention, the plate stacking density is less than or equal to 700 kg/m<3>, so that the building template is good in flame retardancy and smoke suppression, meanwhile, the building template is high in hardness and strong in wood texture; and just like raw woods, the building template also has the properties that the template can be nailed, drilled, planed and adhered and the like, the surface of the template is smooth and fine, and the template is water-proof, corrosion-resistant, fireproof, mould-proof, moth-preventing, and pollution-free.

The present invention discloses a low smoke halogen-free environment-protection fire-retardation type sheet molding compound, which comprises, by weight, 60-80 parts of an unsaturated polyester resin mixture, 20-60 parts of a thermoplastic high molecule polymer slurry, 1-3 parts of an initiator, 2-4 parts of a thickener, 0.02-0.5 part of a polymerization inhibitor, 5-15 parts of a mold release agent, 90-140 parts of a filler, 80-150 parts of aluminum hydroxide powder, 1-10 parts of an organosilicon synergist, 1-8 parts of a smoke suppressant, 5-25 parts of a liner phenol formaldehyde resin, and 80-200 parts of reinforcing fibers. Compared with the conventional fire retardation agent, the low smoke halogen-free environment-protection fire-retardation type sheet molding compound has the following advantages that: a fire retardation performance of the composite material is increased, smoke density during burning is reduced, excellent mechanical properties of the material is maintained, and disadvantages of large smoke density during burning and low comprehensive mechanical performance of the existing fire-retardation sheet molding compound are solved.

The invention discloses a peroxide pre-crosslinked low smoke zero halogen flame retarding irradiation crosslinking polyolefin composite and a preparation method thereof. The preparation method comprises steps of adding 0.5-5 parts of antiflaming synergist into 50-70 parts of polyolefin, mixing uniformly, then adding 30-50 parts of fire retardant, 0.5-5 parts of polyfunctional group cross-linking agent and 0.1-1 part of antioxygen, mixing uniformly, then extruding and pelletizing so as to obtain an irradiation crosslinking material, then uniformly mixing 100 parts of irradiation crosslinking material and 1-5 parts of peroxide master batch, extruding and wrapping on the electric lead core of an electric wire, finally, irradiating 60-180KGy dosage with high-power electron beam or cobalt source for crosslinking, wherein the components above are weighed in parts by weight. The low smoke zero halogen flame retarding irradiation crosslinking polyolefin composite prepared through peroxide pre-crosslinking has fast crosslinking speed, high productivity, low energy consumption, and good flame resistance, and also has excellent smoke suppression performance and better mechanical property.

The invention relates to a wood fiber-PVC composite material and a preparation method thereof, and relates to the composite material and the preparation method and solves the problem that: the wood fiber-PVC composite material has high combustibility and can produce a plurality of black smoke and noxious gas when in burning. The wood fiber-PVC composite material is mainly formed by weight part asfollow: 100 to 600 parts of PVC resin, 30 to 700 parts of wood fiber material, 3 to 145 parts of expansion flame retardant, 1 to 55 parts of copper oxide, 6 to 75 parts of heat stabilizer, 4 to 60 parts of plasticizer and 4 to 65 parts of compatibilizer. The preparation method is as follows: firstly, the material is mixed in advance; secondly, the material is squeezed out for shaping. The wood fiber-PVC composite material of the invention is tested according to the GB/T8924-2005 standard; the wood fiber-PVC composite material of the invention has an oxygen index bigger than 35 percent, has longignition time and does not produce drop melting, and belongs to nonflammable material. The preparation method for the wood fiber-PVC composite material of the invention is simple and easy for operati on, has low requirement to devices and is convenient for spreading and application.

The invention discloses an environment-friendly flame-retardant rubber for shoe soles and a preparation method thereof. The environment-friendly flame-retardant rubber for shoe soles comprises the following components in parts by weight: 55-65 parts of 2# standard rubber, 8-12 parts of styrene-butadiene rubber, 25-35 parts of cis-1,4-polybutadiene rubber, 1-3 parts of sulfur, 2-4 parts of accelerator, 1-3 parts of stearic acid, 4-6 parts of nano zinc oxide, 0.5-0.7 part of releasing agent, 54-66 parts of reinforcing filler, 15-21 parts of softening system, 18-22 parts of red phosphorus, 4-6 parts of nitrogen-based flame retardant MCA (melamine cyanurate) and 18-22 parts of nitrogen-phosphorus flame retardant. In the invention, the natural rubber, styrene-butadiene rubber and cis-1,4-polybutadiene rubber are used as the main materials, the reinforcing filler and softening system are added to ensure the physical properties of the rubber, thereby ensuring the service life of the rubber sole, and the red phosphorus, nitrogen-based flame retardant MCA and nitrogen-phosphorus composite flame retardant NPR (nitrogen and phosphorus retardant) are together used as a flame retardant system, thereby providing excellent flame retardancy for the product. The invention has the advantages of simple method, low cost and favorable use effect.

The invention relates to an expansive waterborne fireproof and flame-retardant coating for a wood material and a preparation method of the expansive waterborne fireproof and flame-retardant coating. The coating comprises water and the following components in parts by weight: 200 parts of melamine-modified urea resin emulsion, 110-120 parts of ethylene-vinyl acetate copolymer emulsion, 20-24 partsof boric acid, 36-38 parts of ammonium polyphosphate, 20-24 parts of guanylurea phosphate, 36-40 parts of pentaerythritol, 30-34 parts of melamine, 1.0-1.4 parts of sulfonated carbon, 3.6-4.0 parts ofzinc borate, 2.0-2.4 parts of ammonium octamolybdate, 16-20 parts of coating auxiliaries and 0-44 parts of pigment and filler. When heated, the expansive waterborne fireproof and flame-retardant coating is capable of greatly retarding the combustion of the wood material so as to prevent fire spreading; and the expansive waterborne fireproof and flame-retardant coating has good smoke inhibiting property and is capable of delaying the smoke generation time, reducing the release amount of smoke and the generation of poisonous gases and providing more safety time and space for escape and rescue of personnel under the condition of a fire hazard.

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 provides a purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable which comprises conductors. Each conductor is covered with a shield layer, the shield layer is covered with a purple-light cross-linked insulating layer, the purple-light cross-linked insulating layer is covered with a ceramic silicone rubber layer, and the ceramic silicon rubber layer is covered with an anticorrosive layer. Flame-retardant glass fiber filling ropes are filled among the conductors, the conductors and the flame-retardant glass fiber filling ropes are together covered with a flame-retardant tape, the flame-retardant tape is covered with an internal purple-light cross-linked protective layer, the internal purple-light cross-linked protective layer is provided with an armor layer, the armor layer is covered with an external purple-light cross-linked protective layer, the external purple-light cross-linked protective layer is covered with a waterproof layer, the waterproof layer is covered with an SBS rubber layer, and the SBS rubber layer is coated with an ultraviolet-proof layer. The invention further provides a production method of the cable. The purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable is provided with multiple flame-retardant layers and the waterproof layer.

The invention discloses a low-smoke flame-proof non-halogen cable material and preparing method, which comprises the following steps: blending polyphosphoric ammonia and zinc boride evenly; spraying and cladding the composite material through coupler; adding middle-density polyethylene, copolymer, functional nylon, compatible agent, anti-oxidant and lubricant to stir evenly; transmitting composite material into concurrent twin-screw extruder to fuse; graining after winding to obtain the product.

The invention discloses flame-retardant wallpaper as an indoor wall decoration material and a preparation method thereof. The preparation method for the flame-retardant wallpaper includes the following steps: after being immersed in a flame retardant solvent, a decorative veneer and a wallpaper substrate (backing paper) are ultrasonically immersed, so that a flame-retardant decorative veneer and a flame-retardant substrate are obtained; the flame-retardant decorative veneer is attached onto the surface of the flame-retardant substrate. The flame-retardant property of the wallpaper is good, the potential fire risk is low when the material burns, and the flame-retarding effect is remarkable; the smoke suppression effect is obvious, the amount of CO released from smoke is obviously reduced, toxic CO gas can be partially turned into non-toxic gas, and the wallpaper has a good effect of suppressing CO released at fire scenes. Moreover, since the adopted materials are natural materials, the wallpaper is safe to use.

The invention relates to an environment-friendly smoke-suppression-type non-cured rubber-asphalt waterproof coating material and a preparation method thereof. An environment-friendly waterproof material with a smoke suppression effect is achieved through adding smoke suppressants of certain fractions based on a non-cured rubber-asphalt waterproof coating material. The waterproof coating material contains the ingredients in percentage by weight: 35-45% of modified asphalt, 25-35% of dispersant, 5-12% of tackifier, 0.5-1.5% of physical smoke suppressant, 3-5% of polymer smoke suppressant and 20-30% of heavy calcium carbonate. The waterproof coating material has good creep property and bond strength and is outstandingly characterized by having smoke suppression characteristic. According to the waterproof coating material, a large volume of harmful smoke generated during the high-temperature melting of the non-cured rubber-asphalt waterproof coating material can be effectively suppressed. The waterproof coating material disclosed by the invention has the characteristics of never curing, low-temperature resistance, no high-temperature flow, good waterproof performance, environmental friendliness, smoke suppression and the like, and can be extensively applied to waterproof projects of various building structures.

The invention discloses a protection method for an outdoor willow furniture product. The protection method comprises the following steps: (1) preparation of a protection paint; (2) pretreatment of a willow product; (3) protection treatment. The protection paint in the protection method has an excellent use characteristic, the adsorbability of the protection paint and the willow product is further improved through a reasonable spraying method, and the protection paint on the surface of the willow product does not fall off or degrade even under the weather with bad environmental change. According to the outdoor willow furniture product treated by the method, the characteristics of inflaming retarding, smoke inhibition, corrosion prevention, mould prevention, insect prevention, antisepsis and loss resistance are well strengthened, the surface of the outdoor willow furniture product is smooth and has no wrinkle, the bending strength is improved by 20-30%, the compressive strength is improved by 15-20%, and the protection method has a high use value.

The invention discloses a halogen-free phosphorus-nitrogen composite flame retardant. The composite flame retardant is prepared from the following components in parts by weight: 40-89.5 parts of aluminum diethylphosphinate, 5-45 parts of organic aluminum phosphite, 5-45 parts of phosphonitrile and 0.5-10 parts of a heat stabilizer, wherein the organic aluminum phosphite is methyl or ethyl substituted aluminum phosphite, and the heat stabilizer is a zinc salt compound and/or cerium oxide. The invention aims to provide the halogen-free phosphorus-nitrogen composite flame retardant with high glowing filament performance and high flame retardancy. The flame retardant can be applied to non-filled or filled thermoplastic polymers, especially has excellent flame retardancy to glass fiber reinforced engineering plastic, and can be used to prepare parts or products in the field of electronic equipment.

The invention relates to a flame-retarding and smoke-suppressing polyvinyl chloride membrane structure material.The material is prepared from, by mass, 80-120 parts of polyvinyl chloride paste resin, 50-85 parts of diisononyl phthalate, 5-50 parts of fire retardant, 0.5-30 parts of a cross-linking agent, 0.5-30 parts of ultraviolet light absorber, 5-50 parts of filler, 1-20 parts of heat stabilizer and 1-20 parts of a coupling agent, wherein the fire retardant is zinc stannate-molybdenum trioxide or zinc stannate-ammonium molybdate.According to the flame-retarding and smoke-suppressing polyvinyl chloride membrane structure material, an efficient flame-retarding and smoke-suppressing agent is added to polyvinyl chloride, so that flame retardation performance, heat resistance and smoke suppression performance of the material are improved.

The invention discloses fireproof emulsion paint. The fireproof emulsion paint comprises acrylic acid emulsion, polyurethane emulsion, epoxy resin, a fire retardant, expanded perlite, titanium dioxide, nanometer silica sol, silicon powder, nanometer titanium dioxide, zinc trifluoroacetylacetonate, dodecafluoroheptyl methacrylate, a film forming auxiliary agent, sorbitan monopalmitate, lauric acid, an antifoaming agent, hydroxyethyl cellulose, methyl ethyl ketone, N-phenyl-N'-cyclohexyl p-phenylenediamine, potassium citrate, dimethyldiallylammonium chloride and water. The fire retardant comprises dimethyl phosphite, methylvinyldichlorosilane, 3-aminopropyltriethoxysilane, 5-ethyl-5-butyl-2-chloro-1,3,2-dioxaphosphorinane, potassium tripolyphosphate, cetyl pyridinium bromide, decabromodiphenyl ethane, aluminum dihydrogen phosphate, calcium borate, melamine and cyanuric acid. The fireproof emulsion paint has excellent flame resistance, good fire retardancy, good adhesion to a base material and good decorative effects.

The invention belongs to the technical field of organic-inorganic compound fire retardants and relates to preparation technology of a nitrogen-phosphorus-magnesium compound fire retardant. The invention is characterized by taking a micron magnesium-based compound as the raw material, activating the surface of the compound in the presence of a surface activating assistant, then adding a phosphorus-containing compound and a nitrogen-containing compound with fire retardant effects according to certain sequence and formula ratio, mixing the mixture uniformly and reacting the mixture completely, then carrying out filtering and drying to obtain the nitrogen-phosphorus-magnesium compound fire retardant product. The nitrogen, the phosphorus and the magnesium in the prepared compound fire retardant can generate synergic fire retardant effect and effectively reduce the filling volume of the compound fire retardant while ensuring good smoke suppression effect. No waste is discharged in the whole preparation process and the reaction flow is simple and easy to control. The method shows obvious competitive advantage and profit space in such aspects as manufacture cost, product performance, environment-friendly property, etc.

The invention discloses a low-smoke halogen-free flame-retardant B1-grade polyolefin cable sheath material and a preparation method thereof. The cable sheath material comprises the following raw materials in parts by weight: 60-80 parts of EVA resin, 10-20 parts of linear low-density polyethylene, 1-3 parts of maleic anhydride grafted linear low-density polyethylene, 3-5 parts of modified halloysite nanotubes, 40-60 parts of modified magnesium hydroxide, 3-5 parts of a polyphosphate flame retardant, 0.1-0.2 part of an antioxidant and 0.5-1 part of a lubricant. The cable sheath material prepared by the invention has the characteristics of low smoke and good flame retardant and fireproof properties, not only satisfies the requirements of B1-grade flame retardant properties, but also has excellent mechanical properties and a wide application range.