723results about How to "Achieving Flame Retardancy" patented technology

The invention relates to a fireproof and flame retardant mineral compound filling material for cables. The filling material comprises a silicon-containing binder; an inorganic flame retardant compound; and a mineral compound. The filling material also can include a silicate modifier, a silicate curing agent and a pigment. Being free of any flammable substance, the fireproof and flame-retardant mineral compound filling material provided in the invention has an excellent fireproof effect, can lose moisture and absorb a lot of heat so as to achieve the flame retardant effect. With good flexibility, the fireproof and flame retardant mineral compound filling material has no hazard to the nature after it is abandoned.

The invention relates to high-temperature resistant flame-retardant epoxy glue and a preparation method of the high-temperature resistant flame-retardant epoxy glue. The epoxy glue is a double-component epoxy glue; when the epoxy glue is used, a first component and a second component are mixed in a weight ratio of 4:(2-3); the first component is prepared from the following raw materials in parts by weight: 30-50 parts of polyfunctional epoxy resin, 5-15 parts of low-viscosity epoxy resin, 3-10 parts of an active toughening agent, 10-30 parts of temperature-resistant reinforcing fillers, 10-15 parts of flame retardant and 0.3-3 parts of antioxidant; the second component is prepared from the following raw materials in parts by weight: 70-95 parts of a temperature-resistant curing agent, 10-30 parts of temperature-resistant reinforcing fillers and 0.3-1 part of a coupling agent. Compared with the prior art, the high-temperature resistant flame-retardant epoxy glue has the advantages of high high-temperature toughness, high adhesion strength, high flame retardant performance and the like.

The invention relates to a water-soluble non-combustible ceramic anti-radiation coating and a preparation method thereof. The coating comprises an active material, an inorganic filler, a shrinkage reducing agent, a thickening agent, a flame retardant, a silicate binder, a reflection reinforcing agent and an aid in a mass ratio of (2-2.8):(0.5-1):0.40:(0.01-0.04):(0.4-0.8):2.13:(0.067-0.2):0.3. The coating is formed by fully mixing the components uniformly and can be used for painting or spraying, and a layer of modified fluoro-silicone emulsion is painted on the surface of the coating after the coating is surface-dried. The coating can be used as an exterior wall coating (base coat), and also can be used as a protective coating for the surfaces of an exterior wall thermal insulation plate, mortar, a sintered brick and a building enclosure structure; and the water-soluble ceramic coating has the characteristics of high durability, light weight, high strength, high efficiency, flame retardance, fire resistance, controllable quality, water resistance, alkali resistance, freezing and thawing resistance, cracking resistance, falling resistance and the like.

The invention provides a preparation method of flame retarding and anti-droplet fiber or textile, and the flame retarding and anti-droplet fiber or textile prepared by utilizing the preparation method. In the preparation method of the invention, fiber or textile is padded and grafted with a monomer solution, and subsequently grafted by electron radiation; then, the fiber or the textile is padded with a cross linker solution and treated with baking so as to cause a fibre-forming polymer to form three-dimensional net type structure. Both of the monomer solution and the cross linker solution can contain flame-retarding elements, and at least one of the two contains the flame-retarding elements so as to lead the synthetic fibers or textiles to realize the dual effects of droplet resistance and flame-retarding. The method of the invention is characterized by strong adaptability to processed objects and good flame-retarding and anti-droplet performance, and the industrialization of the method of the invention is easy to be fulfilled.

The invention discloses a flame-retardant polypropylene composition with high glow-wire ignition temperature (GWIT). The composition is characterized by comprising the following components in percentage by weight: 35.0 to 66.5 percent of polypropylene, 15.0 to 20.0 percent of brominated flame retardants, 3.0 to 8.0 percent of flame-retardant synergist, 15.0 to 35.0 percent of high-efficiency composite flame retardant, 0.1 to 0.5 percent of primary antioxidant, 0.1 to 0.5 percent of auxiliary antioxidant and 0.3 to 1.0 percent of processing aid. The composition has the advantages that: a) the composite flame retardant can achieve a microcapsule coating effect around the composite flame retardant, and the heat is taken away and the heat conduction is reduced by isolating oxygen; b) ultrafine magnesium hydroxide can generate metal oxide to reduce heat conduction in the heating process of a glow wire, and produce steam which can take away the heat, and the surface treatment of the precipitated ultrafine magnesium hydroxide slightly affects the mechanical properties of the flame-retardant modified polypropylene composition; and c) an organosiloxane polymer with high polymerization degree can form a silicon carbide gel isolation layer to isolate oxygen and achieve a flame-retardant effect, the GWIT is higher than required 750 DEG C, and the composition is widely applied to the fields of machinery, industry and the like.

The invention relates to preparation of a nitrogen-phosphorus expanded type flame retardant and a method for application in preparing an aqueous polyurethane coating. The method comprises the following steps: mixing dimethyl phosphate, and alkali catalysts, namely sodium methoxide and acrylamide, performing a reaction so as to obtain an intermediate, adding a charcoal formation agent and a substance A, keeping the pH value of the solution to 6.5-7.0 in the stirring process, further adding a substance B and a substance C, performing a continuous stirring reaction, and performing concentration so as to obtain the nitrogen-phosphorus expanded type flame retardant; and preparing the aqueous polyurethane coating from the nitrogen-phosphorus expanded type flame retardant. By adopting the flame retardant provided by the invention, flame can be rapidly choked, and the flame retardancy of the nitrogen-phosphorus expanded type flame retardant can be improved by releasing smoke, controlling flamecombustion time and controlling densities of charcoal layers. In addition, the nitrogen-phosphorus expanded type flame retardant is grafted with polyurethane, so that the flame retardancy of the polyurethane can be further improved.

The invention discloses a silk-coating method for PVC/PU coating polyester industrial yarns and a device thereof. The method comprises the following steps: using polyester industrial yarns as raw materials and a core layer structure; adopting a PVC-coating adhesive as a surface structure; dipping the polyester industrial yarns in the PVC-coating adhesive so that the adhesive is stuck to the silk;extruding the silk; scraping the adhesive; then, winding the silk in a spiral shape and baking; and drying, cooling the dried silk by cold air and coiling so that the coating adhesive is deeply permeated and coated on the core layer structure to form the silk of the coating polyester industrial yarns. The composite silk material has the advantages of high strength, good toughness, corrosion resistance, aging resistance, and the like. A melting point of PVC, PU or PE coating adhesive on the surface is lower than that of core-layer polyester yarns, woven fabrics in a stretching state are baked at high temperature or thermally rolled, shaped and processed, and warp yarns and weft yarns are melted and fused by the coating adhesive so that mesh fabrics are integrally smooth and stiff and meshesare uniform and stable.

The invention relates to the field of preparation of polypropylene composite materials, in particular to an environment-friendly and flame-retardant polypropylene composite material. The environment-friendly and flame-retardant polypropylene composite material is prepared from 100 parts of polypropylene, 0.1-2 parts of modified graphene, 0.5-3 parts of modified carbon nano tubes, 10-20 parts of an inorganic flame retardant, 5-10 parts of a compatilizer, 3-10 parts of a toughening agent, 0.1-0.3 parts of an antioxidant and 0.1-0.3 parts of a heat stabilizer. Graphene, the carbon nano tubes and the inorganic flame retardant are added to polypropylene resin, and a brand-new flame retardant system is formed; dispersing performance of graphene in a polymer system is improved through modification of graphene; migration of combustible matter in a polymer matrix can be effectively inhibited; a compact protective carbon layer is formed on the surface of the polymer matrix by graphene in the burning process of the composite material, and finally, the flame-retardant effect is achieved.

The invention provides a Diels-Alder bond containing self-repairing flame retardant polyurethane elastomer and a preparation method of the Diels-Alder bond containing self-repairing flame retardant polyurethane elastomer. The structural formula of the polyurethane elastomer is shown in the specification. The preparation method of the polyurethane elastomer is as follows: (1) preparing dihydric alcohol having a furan functional group; (2) preparing a linear-structure polyurethane solution comprising a furan functional group on a side chain; (3) preparing a maleimide modified phosphonitrilic chloride trimer flame retardant; and (4) preparing the Diels-Alder bond containing self-repairing flame retardant polyurethane elastomer.

The invention relates to a fluorosilicone rubber cable material for a coal mine cable and a preparation method of the cable material. The cable material comprises the following raw materials: fluorosilicone rubber, methyl vinyl silicone rubber, precipitation-method white carbon black, light calcium carbonate, zinc oxide, magnesium oxide, stearic acid, an accelerator N, N-tetramethylthiuram disulfide, an antiager-2-mercapto benzimidazole, a vulcanizer-2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, a flame retardant-ammonium polyphosphate, diphenyl silanediol, talcum powder and vaseline. According to the cable material, the advantages of the fluorosilicone rubber and the methyl vinyl silicone rubber as raw materials are combined, the performance of a conventional fluorosilicone rubber cable material is improved, the cable material has excellent performances such as friction and collision resistance, high and low temperature resistance, medium resistance, ageing resistance, flame retardance, waterproof and moistureproof properties, long service life and the like, the requirement of safety use in a coal mine in a special environment is met, and the preparation method of the cable material is simple in process and free of environmental pollution and three-waste emission.

The invention provides a high-molecular flame-retardant foam material which is prepared by mixing the following components in parts by weight: 83.5 to 97.5 parts of polymer resin, 1.8 to 8.8 parts of flame retardant, 0.4 to 4.2 parts of surface active agent and 2 to 15 parts of polystyrene foam particles. The preparation method of the high-molecular flame-retardant foaming heat insulating material comprises the following steps: the polymer resin, the flame retardant and the surface active agent are mixed uniformly to prepare a high-molecular organic flame-retardant adhesive, then after being mixed, the high-molecular organic flame-retardant adhesive and a curing agent are added into the polystyrene foam particles, and the high-molecular flame-retardant foaming heat insulating material can be formed quickly through hot pressing. The high-molecular flame-retardant foam material provided by the invention synthesizes the characteristic of low heat conductivity coefficient of the foam particles and efficient flame-retardant effect of the high-molecular organic flame-retardant adhesive, really achives integration of flame retardance and heat preservation, and uses various flame-retardant compounds for mixing to form the flame retardant, and the prepared high-molecular flame-retardant foaming heat insulating material is better in flame retardant property, better in thermal insulation effect, and higher in oxygen indexes.

The invention discloses a polylactic acid/starch expansion flame-resistant composite material with excellent flame resistance, and a preparation method thereof. The polylactic acid/starch expansion flame-resistant composite material is composed of, by weight, 60 to 89% of polylactic acid, 5 to 30% of an acid source, 5 to 30% of a modified starch, and 1 to 15% of a gas source. In a preferred embodiment, the modified starch is phosphorized maleic anhydride grafting modified starch (bio-based phosphorus containing starch). According to the preparation method, polylactic acid possesses excellent compatibility with the modified starch; synergistic effect of the acid source, the carbon source (the modified starch), and the gas source is capable of improving charring forming capability of the polylactic acid matrix, and improving high temperature stability and flame resistance of polylactic acid greatly. According to the preparation method, adoption of an existing double-screw extruder is enough for production; preparation is simple and convenient; and the preparation method is convenient for industrial production.

The invention relates to a preparation method of a high performance expanded polyethylene product. The material of the invention comprises the following component in parts by weight: 50 parts of LDPE (low-density polyethylene) and LLDPE (linear low-density polyethylene), 0.01-1 parts of peroxide, 0.3-2 parts of talcum powder and/or calcium carbonate, 0.02-0.06 parts of antishrinking agent and 0.1-0.4 parts of foaming agent. In the invention, butane is used as the foaming agent, and the LDPE and the LLDPE are used as resin raw materials. The expanded polyethylene prepared by the preparation method of the invention has the advantages of high density and high surface hardness, the density of the expanded polyethylene is 60-400g/m<3> and the surface hardness is 40-70 degrees. The high performance expanded polyethylene product has good anti-scraping performance and puncture resistance as well as good rebound resilience and anti-quake effect. The high performance expanded polyethylene product meets the requirements of high performance of current packaging materials and fully protecting the substances being packaged. In addition, the high performance expanded polyethylene product has theadvantage of long sustainable using time as a panel and good market potential.

The invention provides a biomass graphene-modified fire retardant and master batch and a preparation method thereof. The biomass graphene-modified fire retardant is mainly prepared from biomass graphene, a fire retardant and a coupling agent. The fire retardant is used as a disperse medium for the biomass graphene. By simple physical mixing, bond joint of the biomass graphene with the fire retardant and uniform dispersion of the biomass graphene are realized, thus finally playing a synergistic flame retardant effect in a polymer matrix. By the adoption of the Biomass graphene-modified fire retardant for preparation of high-molecular polymer master batch, the dispersion problem of biomass graphene is solved, and it is possible to effectively raise fire resistance under the condition of low addition amount of the fire retardant. For practical application fields of different fire-resistant high-molecular polymer materials, anti-dripping, enhancing, ultraviolet-resistant and coloring functions can be obtained simultaneously by the adoption of the master batch product.

The invention discloses a flexible heat-preserving tapestry brick and a preparation method of the flexible heat-preserving tapestry brick. The raw material of the brick is sizing agent or dry power formed by evenly mixing mud powder, a hollow filler, crylic acid monomers, a cross-linking agent, reinforced fibers, a solvent, an initiator and a fire retardant according to a certain proportion. The preparation method comprises the following steps of: forming in a mould in a heating way, drawing, drying, trimming and the like to obtain the flexible tapestry brick with the functions of heat preservation and flame retardance. The flexible heat-preserving tapestry brick has the characteristics of being flexible, heat-preserving, water-resistant, fire-resistant, anti-stain, anti-aging, scrubbing-resistant, low in specific gravity, simple in production process, low in cost and the like, thereby being widely applicable to the decoration indoors and outdoors.

The invention discloses an ultrahigh-temperature safe lithium ion battery electrolytic solution and a lithium ion battery using the electrolytic solution. The electrolytic solution comprises 10-15% ofa lithium salt, 1-5% of a high-temperature film-forming additive, 1-10% of a flame-retardant additive and the balance of an organic solvent, wherein the lithium salt is one or a mixture of more thantwo of hexafluorophosphoric acid, lithium bis (fluorosulfonyl) imide or lithium bis (trifluoromethylsulfonyl) imide, the organic solvent is formed by mixing carbonic ester, carboxylic ester and a fluoroether solvent according to a certain proportion, the carbonic ester accounts for 30%-70% of the total amount of the lithium ion battery electrolytic solution, the carboxylic ester accounts for 0%-10% of the total amount of the lithium ion battery electrolytic solution, and the fluoroether accounts for 0%-10% of the total amount of the lithium ion battery electrolytic solution. According to the invention, the electrolytic solution disclosed by the invention is a high-temperature solvent and lithium salt with excellent thermal stability, and a film-forming additive with excellent film-formingthermal stability and a proper flame-retardant additive are added to realize the flame-retardant effect of the electrolytic solution; and the lithium ion battery disclosed by the invention can be normally used under the ultrahigh temperature condition of 100 DEG C while the battery has excellent safety performance.

The invention discloses a preparation method of a three-source integrated hyperbranched structure flame retardant. The preparation method of the three-source integrated hyperbranched structure flame retardant comprises the following steps: 1, adding hydroxyl terminated hyperbranched polyester and phosphoric acid into a reactor, and further adding a catalyst, namely phosphotungstic acid or p-toluenesulfonic acid; 2, heating to the temperature of 80 DEG C, and reacting for 4 hours under a vacuum condition; 3, washing with ethanol, and dissolving in acetone after drying; 4, adding ethylenediamine of which the molar ratio is equal to that of phosphoric acid to be reacted for 30 minutes, obtaining a precipitate, washing with ethanol for 3 times, and drying to obtain light yellow powder. The flame retardant obtained by adopting the method is mixed with acrylic acid, PP and the like, so that polyurethane flame-retardant PP with low viscosity and high mechanical properties can be obtained. The invention further discloses application of the three-source integrated hyperbranched structure flame retardant used as a polymer material.

The invention discloses a halogen-free flame retardant cable material which is prepared from the following raw materials in parts by weight: 60-80 parts of LDPE (Low-Density Polyethylene) resin, 15-25 parts of EPDM (Ethylene-Propylene-Diene Monomer) resin, 5-15 parts of EVA (Ethylene Vinyl-Acetate Copolymer) resin, 70-90 parts of aluminium hydroxide, 6-8 parts of red phosphorus, 25-30 parts of magnesium hydroxide, 2-3 parts of hydrotalcite, 5-10 parts of maleic anhydride grafting, 1-2 parts of antioxidant and 1-1.5 parts of silicon-copper powder. The invention aims at overcoming the defects in the prior art; the magnesium hydroxide as a flame retardant is added in the cable material, so the flame-retardant effect is achieved; by adding abamectin, asarinin and dihydrocapsaicin, the condition that the cable is bitten by termite can be effectively prevented; the silicon-copper powder as a lubricating agent, the maleic anhydride grafting as a compatilizer, the antioxidant and the other components are also added, so that various properties of the flame-retardant material are improved, and the service life of the flame-retardant material is prolonged.

The invention discloses a low smoke antiflaming high shield cable sheath material. The low smoke antiflaming high shield cable sheath material is prepared from the following raw materials in parts by weight: 45-60 parts of poly vinyl chloride resin base material, 40-50 parts of ethylene-vinyl acetate rubber, 1.5-2.3 parts of multifunctional rare earth thermal stabilizer, 1.5-1.8 parts of zinc borate, 21-24 parts of main plasticizer, 4-6 parts of secondary plasticizer dioctyl sebacate, 2-4 parts of secondary stabilizer calcium stearate, 0.6-0.9 part of antioxidant, 11-13 parts of filing modification material, 0.3-0.5 part of lubricating agent stearic acid, 0.7-1.2 part of conductive carbon black, 3-6 parts of graphite powder and 30-45 parts of magnesium hydroxide. The low smoke antiflaming high shield cable sheath material has excellent antiflaming effect and excellent conductive and shielding properties and can release less smoke and harmful gas when being burned.

The present invention discloses a thermal-resistant and flame-retardant membrane and a preparation method thereof, and applications. According to the preparation method, the cost is controllable, theoperation of the preparation process is simple, and thus the preparation method is suitable for mass production. The prepared thermal-resistant and flame-retardant membrane has a double-layer composite structure with both thermal stability and flame retardancy, the membrane can prevent internal short circuit of a battery at a lower temperature, so that severe thermal runaway of the battery is prevented, and thus safety accidents, such as burning and explosion are prevented; the membrane can effectively prevent the battery from burning and exploding after the thermal runaway of the battery occurs under the conditions of overcharge, puncture and abuse; and the membrane has good applications in the chemical power supply system, especially in lithium ion batteries.