232results about How to "Improve flame retardant and smoke suppression performance" patented technology

The invention discloses an attapulgite-based nano-scale wood fire retardant. A preparation method of the attapulgite-based nano-scale wood fire retardant comprises the following steps of weighing respectively raw materials by weight part, pouring an acid solution into attapulgite, carrying out stirring, supersonic treatment, standing and decantation of upper suspension at a normal temperature, washing solids by deionized water, wherein the solids are obtained by repeated centrifugation, drying attapulgite modified by an acid, grinding into powder, dividing the powder into two parts, preserving the two parts in a sealed environment, mixing water-soluble flame-retardant ingredients and one of the two parts, treating the other one of the two parts by an aluminate coupling agent aqueous solution with stirring at a normal temperature for 8 hours, mixing flame-retardant suspension and the attapulgite aqueous solution obtained by the previous step, and stirring the mixture for 20 minutes to obtain a attapulgite-based nano-scale wood fire retardant solution. Through vacuum pressurization, the attapulgite-based nano-scale wood fire retardant can be injected into solid wood, wood single boards, wooden fibers or wood shavings without changes of other production processes so that flame-retardant artificial boards or solid wood with efficient flame retardance are obtained.

The invention aims at providing a polyvinyl chloride single-wall corrugated pipe used for buildings. The polyvinyl chloride single-wall corrugated pipe is composed of, by weight, 100 parts of polyvinyl chloride resin, 2-20 parts of light calcium carbonate, 2-6 parts of heat stabilizer, 1-8 parts of impact modifier, 0.3-3 parts of processing agents, 0-3 parts of lubricant, 2-12 parts of additive flame retardant and 0.1-3 parts of pigment. The additive flame retardant is composed of two types of fire retardant including zinc borate and ammonium octamolybdate according to the mass ratio of 1-7 to 1-5. The average particle size of zinc borate is smaller than or equal to 5 micrometers. The average particle size of ammonium octamolybdate is smaller than or equal to 2 micrometers. The excellent flame retardant and smoke suppression performance can be achieved by only adding a small amount of fire retardant, and the influences on mechanical performance such as impact resistance of the polyvinyl chloride single-wall corrugated pipe are small.

The invention discloses flame-retardant smoke-suspension asphalt for an environment-friendly road and a preparation method of the asphalt. The flame-retardant smoke-suspension asphalt consists of the following components in parts by weight: 100 parts of basic asphalt, 2-10 parts of hydrotalcite powder, 10-20 parts of aluminium hydroxide and / or magnesium hydroxide, 0-5 parts of antismoke agent and 0-5 parts of coupling agents. The preparation method comprises the following steps of: raising the temperature of the basic asphalt so that the basic asphalt is in a melting state; adding the hydrotalcite powder, the aluminium hydroxide and / or the magnesium hydroxide, the antismoke agent and the coupling agent according to the proportions to uniformly stir by a stirrer; and shearing at high speed by a shearing machine. The flame-retardant smoke-suspension asphalt belongs to environment-friendly inorganic class composite asphalt, is good in flame-retardant and smoke suspension effect, high in oxygen indexes and good in stability, can inhibit generation of asphalt smoke and the hydrogen chloride, and avoids toxicity, corrosion and secondary pollution; and meanwhile, the preparation method for the flame-retardant smoke-suspension asphalt is relatively low in production cost, environment-friendly in production, simple in preparation process, wide in application and suitable for popularization.

The invention discloses a ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent and a preparation method of the ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent. The preparation method of the polymer is as follows: putting 10-(2,5-dyhydroxyl phenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a reactor, adding a solvent,stirring for 5-10 minutes, adding an acid-binding agent; taking R1,R2'-ferrocene oxalyl chloride, adding the solvent, mixing, adding into the reactor dropwise, thermally insulating, stirring and reacting for 1-15 hours at the temperature of 0-50 DEG C under the protection of nitrogen after finishing adding dropwise; pouring a liquid obtained after the reaction into a precipitator while stirring, wherein the volume of the precipitator is 5-10 times that of the liquid, precipitating a yellow solid, carrying out suction filtration, washing a filter cake by using the precipitator, and drying to obtain the ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent. The ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent can be used to retard flame and suppress smoke of high polymer materials like polyolefins and epoxy resins.

The invention discloses a graphene modified silicone rubber cable sheath material. The material is prepared from raw materials as follows: phenyl siloxane rubber, methyl vinyl silicone rubber, fluororubber, polybutadiene rubber, polyurethane, ethylene-acrylate rubber, zinc oxide, stearic acid, 2,4-dichlorobenzoyl peroxide, an assistant crosslinker TAIC, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, cerium oxide, fumed silica, carbon black, nano calcium carbonate, stearic acid modified magnesium hydroxide, ammonium polyphosphate, modified graphene oxide, nano silicon carbide, magnesium stearate, triphenyl phosphate, tributyl citrate, an accelerator, an anti-aging agent and silane modified cellulose. The graphene modified silicone rubber cable sheath material is high in strength, excellent in heat resistance and flame retardation, good in aging resistance and long in service life.

The invention discloses a halogen-free low-smoke flame-retardant cable material, comprising, by weight, 75-90 parts of polyvinyl chloride, 0.5-4 parts of a smoke inhibitor, 5-10 parts of expansible graphite, 3-8 parts of a plasticizer, 16-20 parts of a filling agent, and 1-3 parts of an antioxidant. By modifying the various additives, especially using the expansible graphite, low-smoke property and flame retardance of the material herein are greatly improved, and mechanical strength of the material is partly improved.

The invention discloses a corrosion-resistant high-temperature-resistant cable material. The material is prepared from, by weight, 10-20 parts of hydrogenated butadiene-acrylonitrile rubber, 60-80 parts of ethylene propylene terpolymer, 20-40 parts of modified polyurethane, 20-40 parts of carbon black, 20-40 parts of kaolin, 4-6 parts of epoxy acetyl methyl linoleate, 40-60 parts of flame-retardant agent, 0.5-1.5 parts of gamma-aminopropyltriethoxysilane, 1-1.5 parts of dicumyl peroxide, 0.1-0.3 part of zinc stearate, 0.2-0.4 part of accelerant CZ, 4-6 parts of Ca / Zn composite stabilizer and 2-4 parts of polyethylene wax. The cable material is good in high temperature resistance, high in corrosion resistance and good in mechanical property.

The invention relates to a preparation method of a reactive nitrogen-phosphorus flame retardant for aqueous polyurethane. The preparation method comprises: (1) adding 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide, a dicarboxylic acid with a double bond or an anhydride with a double bond, and a solvent A to a reaction container, uniformly mixing, carrying out an addition reaction for 12-24 hat a temperature of 140-180 DEG C under stirring, and carrying out vacuum drying on the mixture obtained by the reaction after achieving the reaction time to obtain a phosphorus-containing derivative;and (2) adding the phosphorus-containing derivative obtained in the step (1), diethyl bis(2-hydroxyethyl)aminomethylphosphonate, a water-carrying agent B and a catalyst C to a reaction container, mixing uniformly, carrying out an esterification reaction for 12-24 h at a temperature of 140-160 DEG C under stirring, and carrying out vacuum drying on the mixture obtained by the reaction after achieving the reaction time to obtain the reactive nitrogen-phosphorus flame retardant. According to the present invention, the reactive nitrogen-phosphorus flame retardant for aqueous polyurethane is prepared by the above method.

The invention provides a composition of flame-retardant polycarbonate and acrylonitrile-butadiene-styrene resin. The composition comprises the following components and weight percentage (based on the total weight of the composition): 40 to 80 percent of polycarbonate, 5 to 45 percent of acrylonitrile-butadiene-styrene resin, 5 to 40 percent of halogen-free main flame retardant and 1 to 5 percent of boron-containing auxiliary flame retardant. The composition of flame-retardant polycarbonate and acrylonitrile-butadiene-styrene resin can not emit a large amount of dense smoke, corrosive gas or toxic gas during combustion, and improves the processability of materials.

The invention provides a CMR or CMP graded flame retardant cable material including polyvinyl chloride, a tetrabromo phthalic anhydride ester-containing plasticizer, a first flame retardant, a second flame retardant, a calcium zinc stabilizer, a lubricant and a processing modifier, wherein based on 100 parts by weight of the polyvinyl chloride, the amount of the plasticizer is 30-50 parts by weight, the amount of the first flame retardant is 30-50 parts by weight, the amount of the calcium zinc stabilizer is 1-5 parts by weight, the amount of the second flame retardant is 10-40 parts by weight, the amount of the lubricant is 0.1-2 parts by weight, and the amount of the processing modifier is 0.1-1 part by weight; the first flame retardant is selected from a combination of aluminum hydroxide and magnesium hydroxide, the second flame retardant is selected from at least four of antimonous oxide, zinc borate, zinc stannate, ammonium octamolybdate and nano clay. The CMR or CMP graded flame retardant cable material has excellent comprehensive performance and processing performance.

The invention discloses ceramic-able room-temperature vulcanized organic silicone sealant capable of retarding flame and inhibiting smoke and a preparation method thereof. The organic silicone sealantis composed of, by mass, 40-70% of silicone rubber, 5-30% of a reinforcing agent, 10-40% of porcelainized filler, 3-10% of a fluxing agent, 1-5% of a flame-retarding and smoke-inhibiting agent, 1-10%of a coupling agent, 1-5% of a catalyst, and 1-10% of a crosslinking agent. The preparation method includes: stirring the fluxing agent and the porcelainized filler at 500-900 DEG C until the surfacelayer of the fluxing agent is melted and a part of the porcelainized filler is adhered; then dehydrating a mixture of the silicone rubber substrate, the reinforcing agent, a ceramic-forming precursor, and the flame-retarding and smoke-inhibiting agent to prepare a base material; mixing and stirring the base material with the crosslinking agent, the catalyst and the coupling agent. If ablation temperature is higher than 800 DEG C, a reaction product containing a Si-B-Al bond can be generated at the binding interface between the ceramic material and a glass curtain wall, so that stripping of the glass curtain wall at high temperature can be effectively prevented.

The invention relates to a high-smoke suppression and high-oxygen index phenolic aldehyde fire-proof heat-preserving board and a preparation method thereof and belongs to the technical field of a building fire-proof material. The high-smoke suppression and high-oxygen index phenolic aldehyde fire-proof heat-preserving board comprises the following components in parts by mass: 100 parts of phenolic resin, 10 to 20 parts of expansive fire retardant, 5 to 10 parts of liquid fire retardant, 5 to 8 parts of coal ash, 1 to 2 parts of tiny silicon powder, 1 to 2 parts of magnesium hydroxide, 5 to 7 parts of foaming agent, 5 to 7 parts of foam stabilizer and 20 to 30 parts of curing agent. The preparation method of the high-smoke suppression and high-oxygen index phenolic aldehyde fire-proof heat-preserving board comprises the following steps of 1) preparing a mixed slurry, i.e. (1) optionally selecting a formula, (2) mixing the phenolic resin and the liquid fire retardant, (3) mixing the expansive fire retardant, the hollow coal ash, the magnesium hydroxide and the tiny silicon powder, and adding the mixture into the mixed liquid, (4) adding the foaming agent and the foam stabilizer, and uniformly stirring the materials, and (5) adding the curing agent, stirring the materials, and filling the mixture into a die; and 2) molding and curing to obtain the fire-proof heat-preserving board. The fire-proof heat-preserving board has the advantages of convenience in construction, good fire resistance, low water absorption per volume, capability of meeting the requirements of high smoke suppression and high oxygen index of inner and outer wall heat-preserving boards, and the like.

The invention discloses a water-based epoxy asphalt waterproof adhesive layer material and a preparation method thereof. The water-based epoxy asphalt waterproof adhesive layer material is prepared by adding expanded vermiculite powder and graphene on the basis of the traditional material, thereby greatly enhancing the impact resistance, strength and toughness of the material. The water-based epoxy asphalt waterproof adhesive layer material has favorable flame-retardant and smoke inhibition effects, so that the service life of the material is greatly prolonged; and thus, the water-based epoxy asphalt waterproof adhesive layer material is a low-cost high-performance novel waterproof adhesive layer material.

The invention relates to smoke-suppressing flame-retardant sound-insulating PVC (polyvinyl chloride) and a preparation method thereof. The smoke-suppressing flame-retardant sound-insulating PVC comprises the following components in parts by mass: 100 parts of PVC, 3-60 parts of plasticizer, 0.1-10 parts of heat stabilizer, 1-80 parts of flame retardant, 0.1-1 part of smoke suppressor, 100-800 parts of iron oxide powder, 4-30 parts of calcium carbonate and 0.1-5 parts of carbon black; the oxygen index of the product is 38-39%, and the self-extinguishing property is (UL-94)V-0 level; the combustion smoking amount is low, can be up to 7-9%, and is greatly reduced in comparison with the smoking amount (33-54%) in the prior art; the tensile strength is 10-30 MPa, the elongation at break is 270-300%, and the freezing resistance can ensure no cracking at -30 DEG C; all the components perform synergistic action to greatly increase the properties of the product; the product is low in cost, low in consumption, remarkable in flame-retardant and smoke-suppressing effect, small in toxic gas discharge amount during combustion and low in price; and the product has low temperature resistance and ultraviolet resistance, generates no corrosive gas, is low in moisture absorptivity and favorable in sound-insulating effect, and can be widely produced and continually used instead of the existing material.

The invention discloses a flame retardant smoke-suppression type humidity controlling functional coating and a preparation method thereof. The preparation method comprises the following steps of: firstly, preparing a hydrotalcite / poly(sodium acrylate-acrylamide) intercalation composite material component having high humidity capacity, humidity controlling ability and flame retardant property by areversed phase suspension polymerization method; and then adding the intercalation composite material component to styreneacrylate emulsion, inorganic stuffing, auxiliaries and water, and performing thorough stirring and mixing and even dispersion, thereby obtaining the inner wall coating having flame retardant, smoke suppressing and humidity controlling functions. The technical proposal of the invention provides the coating for an indoor building with the flame retardant and smoke suppressing properties and also the environmental humidity controlling function, thereby meeting the requirements of people for the environment comfort, the air quality and the fire-proof safety of the indoor buildings.

The present invention discloses a smoke-suppression non-cured rubber bitumen waterproof coating material, wherein the raw materials comprise, by weight, 20-28 parts of bitumen, 3-7 parts of a styrene-butadiene-styrene block copolymer, 2.5-3.5 parts of styrene butadiene rubber, 15-20 parts of paraffin oil, 1-3 parts of solvent oil, 5-15 parts of recycled rubber powder, 20-25 parts of heavy calcium carbonate, 3-7 parts of asbestos wool, 4-8 parts of fly ash, 3-6 parts of a terpene resin, 0.5-2 parts of an epoxy resin, 1-3 parts of epoxy soybean oil, 0.5-1.5 parts of an antioxidant 1076, 0.1-0.3 part of a light stabilizer 292, 0.3-0.5 part of 2,4-dihydroxydiphenyl benzophenone, 0.5-1 part of ABS-g-MAH, 0.3-0.7 parts of dicumyl peroxide, 0.3-0.5 part of vinyltriethoxysilane, 4-6 parts of microencapsulated red phosphorus, 1-2 parts of a modified smoke suppressant, and 0.5-1 part of a C9 petroleum resin. The smoke-suppression non-cured rubber bitumen waterproof coating material of the present invention has characteristics of good smoke suppression performance and good water resistance.

The invention discloses an organic silicon flame-retardant pressure-sensitive adhesive tape. The organic silicon flame-retardant pressure-sensitive adhesive tape comprises a substrate layer, an adhesive agent layer and a release layer, wherein the substrate is a flame-retardant cotton paper layer; flame-retardant filler is filled with the inner part of the flame-retardant cotton paper layer; the flame-retardant filler is prepared from the following components in parts by weight: 30 parts to 50 parts of modified plant fibers, 8 parts to 10 parts of asbestos powder, 6 parts to 8 parts of flame-retardant fibers, 3 parts to 5 parts of nano-aluminum hydroxide, and 10 parts to 20 parts of vegetable glue. The invention also provides a preparation method of the organic silicon flame-retardant pressure-sensitive adhesive tape. The adhesive tape disclosed by the invention has high tensile strength, high softness performance, high viscosity and high stability while the adhesive tape has high flame retardance property; and compared with conventional halogen, the organic silicon flame-retardant pressure-sensitive adhesive tape is relatively high in flame retardance and is more environmentally friendly.

The invention belongs to the technical field of a cable, and particularly relates to a flame-retardant insulation cable material and a preparation method thereof. The cable material is prepared from the following raw materials in parts by weight: 70 to 90 parts of high density polyethylene, 10 to 16 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of plasticizer, 3 to 8 parts of flame retardant agent, 0.1 to 0.5 parts of antioxidant, 1 to 5 parts of coupling agent and 6 to 13 parts of aluminum oxide fibers. The flame-retardant insulation cable material has excellent mechanical performance and electric performance, contains no halogen element, and is low in smoke, non-toxic and harmless when in burning and can be widely applied to an insulation and jacket material of a high voltage cable.

The invention discloses a halogen-free and flame-retardant composite polyimide foam material and a preparation method thereof. The foam material is prepared from raw materials in parts by weight as follows: 100 parts of aromatic dianhydride, 50-500 parts of a polar solvent, 5-30 parts of fatty alcohol, 5-20 parts of deionized water, 15 parts of a foam stabilizer, 5 parts of a composite catalyst, 4-100 parts of a halogen-free composite flame retardant and 100-500 parts of polyisocyanate. The preparation method comprises the steps as follows: aromatic dianhydride is heated in the polar solvent to react with fatty alcohol; the deionized water, the foam stabilizer, the composite catalyst and the halogen-free composite flame retardant are added, and a suspension is obtained; finally, polyisocyanate is added, foaming and vacuum heating curing are performed, and the flame-retardant polyimide foam material is obtained finally. The prepared foam material has the characteristics of low density, uniform pore size distribution, excellent mechanical property, heat resistance and flame-retardant and smoke-suppression performance and the like, and the requirement for the polyimide foam material used in aerospace, navigation and other high-end fields can be met.

The invention discloses a zinc phosphomolybdate flame retarding and smoke suppressing PVC sheet material which is prepared from the following components in parts by weight: 100 parts of PVC resin, 4 to 5 parts of a heat stabilizer, 5 to 20 parts of a plasticizer, 3 to 7 parts of a flame retarding and smoke suppressing agent, 0.5 to 3 parts of a phosphate coupling agent and 0.4 to 0.6 part of PE wax. According to the PVC sheet material, by the flame retarding action of phosphorus and the smoke suppressing action of molybdenum and zinc, the synergistic effect of phosphorus, molybdenum and zinc can effectively improve the flame retarding and smoke suppressing performance of the PVC sheet material.

The invention discloses a method for generating mesoporous molecular sieves through self-assembling in wood. The method for generating mesoporous molecular sieves through self-assembling in wood comprises the following steps of: preparing precursor sol, vacuum compressing and impregnating, volatilizing and self-assembling, carrying out hydro-thermal treatment and the like. According to the invention, mesoporous molecular sieves are introduced in wood open-framework structures through self-assembling, and have the efficacies of increasing density, intensity, abrasion resistance and the like. The wood prepared by the invention is compounded with flame retardants and preservatives, the flame retardants and the preservatives can be kept in wood for a long time, and cannot run off, the wood has the effects of efficient flame retardance, smoke suppression and long-acting corrosion resistance. The method for generating mesoporous molecular sieves through self-assembling in wood provided by the invention not only can be widely applied to flame retardance and corrosion resistance for compounded wood or solid wood, and the technology process is easy to achieve, is low in cost, is good in effect, and is worthy of being popularized.

The invention discloses a high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and a preparation method thereof. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared from PVC resin, an organic filler, a flame retardant, a coupling agent, a foaming agent, a foaming adjuster, a composite stabilizer, a lubricant, a plasticizer, a processing modifier, a flexibilizer MBS resin and an ultraviolet absorbent. By the adoption of the MBS flexibilizer, the impact strength of a product is enhanced, and the compatibility and the processability of the product are further improved. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared by a one-time forming process which is simple and feasible; an experiment shows that the performance of the prepared high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is much higher than that required by a common building template, can meet the standard of grade I in China on wood-plastic building templates, and can be recycled for 30 times, and wastes can be recycled and remolded to achieve the effects of recycling and zero loss; furthermore, the requirements on energy conservation and environment protection in China are met, and the PVC wood-plastic foaming composite building template has considerable economical benefits.

The invention relates to a preparation method of an aluminum hydroxide / zinc stannate microcapsule flame retardant. The preparation method comprises the following steps: 1) preparing aluminum sulfate into a 5-30 wt% aluminum sulfate solution; 2) adding zinc stannate and a dispersing agent into the aluminum sulfate solution, and dispersing by stirring to obtain a mixed solution; 3) regulating the pH value of the mixed solution to 5-9, and stirring to react; and cooling, filtering, washing, and drying to obtain the aluminum hydroxide / zinc stannate microcapsule flame retardant. The invention also relates to an aluminum hydroxide / zinc stannate microcapsule flame retardant prepared by the preparation method. The aluminum hydroxide / zinc stannate microcapsule flame retardant has the advantages of high flame-retardant efficiency, favorable smoke inhibition property, simple technique and low production equipment investment, can easily implement industrialized production, and can solve the problems in the prior art.

The invention discloses an environment-friendly efficient smoke-suppression additive type flame retardant for wood-based panels. The additive type flame retardant is prepared from the following raw materials in parts by weight: 10-80 parts of a phosphate compound, 10-80 parts of a boron-containing compound, 10-80 parts of a nitrogen-containing compound, 10-50 parts of a hydroxide compound and 0.1-10 parts of a silane coupling agent. The additive flame retardant is prepared by synergistic effect of multiple elements of nitrogen, phosphorus and boron, can overcome the defects of the existing soaking type flame retardant, has the advantages of low production cost, high efficiency, convenience in use, good flame retardant and smoke suppression effects, no volatilization, no delay and lasting flame retardance, can improve the dry-wet bonding strength of a finished product plate, and has remarkable economic and social benefits. The environment-friendly efficient smoke-suppression additive type flame retardant is widely suitable for being used in cooperation with fireproof and flame-retardant operation.

The invention provides a flame retardation and smoke suppression scheme designing method in the whole thermal decomposition process of a tunnel asphalt pavement, belongs to the technical field of tunnel fire safety, and solves the problem that flame retardation and smoke suppression are difficult to conduct by using an existing flame retardant and smoke suppressant in the whole thermal decomposition process of tunnel asphalt pavement. Firstly, four components of asphalt are prepared, and the thermal decomposition temperature intervals and graded distribution characteristics of the four components are found; a thermal decomposition kinetic model about the four components is established, thermal decomposition kinetic parameters of the components are calculated, and the thermal decomposition performance of the four components is quantitatively evaluated; a flame retardant and smoke suppressant with the thermal decomposition temperature matched with the thermal decomposition temperature intervals of the four components is preferentially selected, and the type and addition amount of the flame retardant and smoke suppressant are determined; according to the contents of the four components, a compositional scheme for the flame retardant and smoke suppressant is proposed; the flame retardation and smoke suppression effects on the tunnel asphalt pavement and influence on pavement performances of the composited flame retardant and smoke suppressant are investigated, the compositional scheme is optimized, and the best addition amount and addition mode of the composited flame retardant and smoke suppressant are determined. According to the method, efficient flame retardation and smoke suppression in the whole thermal decomposition process of the tunnel asphalt pavement are achieved, and fire safety is improved.

The invention belongs to the technical field of flame-retarding and smoke-inhibiting agents and particularly relates to a layered double hydroxide-molybdate ion modified graphene flame-retarding and smoke-inhibiting agent and a preparation method of same. The preparation method includes the steps of supporting LDH onto surface of graphene and intercalating molybdate ions between layers of the LDH. The flame-retarding and smoke-inhibiting agent not only improves the flame-retarding and smoke-inhibiting performances of a polymer but also improves physical and mechanical performances of the polymer.

The invention discloses a preparation method of a high-flame-retardant smoke-suppression LVT floor wear-resistant layer. The preparation method comprises the following steps of: (1) taking the following production raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 0-40 parts of a plasticizer, 0-50 parts of a flame retardant, 0-8.0 parts of a smoke suppression agent, 1.0-6.0 parts of a stabilizer and 0.5-3.0 parts of a processing aid; and (2) mixing the production raw materials, performing internal mixing, performing open milling, calendering, cooling, drawing and discharging to obtain the high-flame-retardant smoke-suppression LVT floor wear-resistant layer. According to the LVT floor wear-resistant layer prepared by the method disclosed by the invention, the wear-resistant layer has excellent flame-retardant smoke-suppression performance by reasonably proportioning the components of the plasticizer, the flame retardant and the smoke suppression agent; and by controlling the mixing, internal mixing and other parameters, the light transmittance and flexibility of the wear-resistant layer are greatly improved, the pattern of a color film can be displayed to thegreatest degree when the wear-resistant layer is applied to the LVT floor, the pattern diversity of the LVT floor is reflected, and the wear-resistant layer can be applied to ships, rail transit and other places with relatively strict operating requirements.

The present invention discloses a flame-retardant and smoke-inhibition type non-cured rubber asphalt waterproof coating material, wherein the raw materials comprise, by weight, 25-30 parts of asphalt, 3-7 parts of a styrene-butadiene-styrene block copolymer, 12-16 parts of octane oil, 4-7 parts of paraffin oil, 10-16 parts of recycled rubber powder, 22-28 parts of talc powder, 3-5 parts of limestone powder, 5-8 parts of a rosin resin, 1-3 parts of a C5 petroleum resin, 2-4 parts of paraffin, 1-2 parts of p-phenylenediamine, 0.2-0.6 part of a light stabilizer 622, 0.4-0.7 part of 2-hydroxy-4-methoxy benzophenone, 1-2 parts of PP-g-MAH, 0.4-0.8 part of dicumyl peroxide, 0.2-0.4 part of stearic acid, 0.1-0.2 part of zinc oxide, 1-2 parts of 3-aminopropyl triethoxysilane, 5-9 parts of a flame retardant agent, 1-3 parts of a modified smoke suppressant, and 0.8-1.2 parts of a coumarone resin. The flame-retardant and smoke-inhibition type non-cured rubber asphalt waterproof coating material of the present invention has characteristics of good waterproof performance, good flame retardant performance, and good smoke suppression performance.

The invention belongs to the technical fields of cables, in particular to a low-smoke flame-retardant pull tension cable special for elevator monitoring. The cable comprises a copper core conductor (10) and is characterized in that: an outer layer of the copper core conductor (10) is coated by a polythene insulating layer (20), an aluminum foil nylar layer (30), a tinned copper wire braided layer (40), a fiber filament weaving net layer (50) and a PVC coated layer (60) in turn. The cable has the advantages of high tensile strength, high flexibility, good flame retardant and smoke suppression performance, reasonable cost performance, and suitability for video transmission and signal control for an elevator monitoring system.

The invention discloses an environmental protection wood flame retardation antiseptic. The flame retardation antiseptic comprises the following ingredients, by weight, 15%-20% of guanylurea phosphate, 4%-6% of zinc borate, 8%-12% of diammonium phosphate, 6%-10% of nanometer titanium dioxide, 1%-4% of ammonium molybdate, 6%-9% of cupric dimethyldithio carbamate, 4%-8% of disodium octoborate tetrahydrate, 1%-3% of dioctyl dimethyl ammonium chloride, 1%-3% of tetradecyl benzyl dimethyl ammonium chloride, 1%-3% of 8-hydroxyquinoline, 0.5%-2% of fatty alcohol polyoxyethylene ether and 20%-50% of water. The beneficial effects are that the flame retardation antiseptic has advantages of high efficiency, no poison and meeting environmental protection requirements, and has advantages of excellent flame retardation smoke inhibition performances, broad-spectrum sterilization and insecticidal effects, excellent anticorrosion and mildew-resistant effects and the like for processing wood. The permeability is good, the leaching resistance is strong and the cost is low.