33results about How to "Extend fire resistance time" patented technology

The invention discloses a fireproof and anti-corrosion bifunctional ultra-thin steel structure coating and a preparation method thereof. The fireproof and anti-corrosion bifunctional ultra-thin steel structure coating is prepared from the following raw materials by weight percentage: 1-30% of chloroprene rubber adhesive, 1-30% of melamine, 1-20% of pentaerythritol, 1-30% of pigment and filler, 1-50% of 1000# solvent gasoline,1-20% of ammonium polyphosphate, 1-15% of chlorinated paraffin solution with a chlorine content of 70%, 1-10 % of acrylic resin, 0.1-5% of amino resin, 1-10% of raw vermiculite, 1-10% of charring aid, 0.1-5% zinc borate and 0.1-10% of auxiliary agent. The fireproof and anti-corrosion bifunctional ultra-thin steel structure coating has the advantages of greatly improved maximum flexibility, fire resistance limit, binding strength and fire resistance time, good flame retardance, corrosion resistance, water resistance and weather resistance and low cost; and more importantly, the coating is safe and environmentally-friendly, and the coating layer formed by the coating is light and thin, thus truly embodying the fireproof and anti-corrosion dual functions and ultrathin characteristic.

The invention provides a gypsum-based ready-mixed mortar and a preparation method thereof. The ready-mixed mortar comprises 450-500 parts of hemihydrate gypsum, 550-600 parts of aggregate, 0.7-1.5 parts of compound modification additive, 0.2-1.0 part of foaming agent and 1-10 parts of setting retarder. The preparation method includes the following steps: mixing hemihydrate gypsum, aggregate, compound modification additive, foaming agent and retarder to obtain ready-mixed mortar. The gypsum-based ready-mixed mortar has strong adhesion to the substrate, which overcomes the shortcomings of easy cracking and hollowing in the use of traditional cement-based ready-mixed mortar; the one-time survival thickness is 4mm-2cm, which is smooth to the wall surface The requirements for the degree of strength are not high, and the construction requirements are greatly reduced; the hardening is fast, which can speed up the construction progress; the cost is low, and at the same time, it also has the advantages of good fire resistance, automatic temperature adjustment function, and light weight.

The invention relates to a calcium silicate board and a preparation method thereof. The calcium silicate board is prepared from the following raw materials: 47-50 parts of quartz sand, 15-18 parts ofcement, 12-16 parts of fly ash, 15-18 parts of ultrafine ceramic fibers and 3-7 parts of paper fibers. According to the calcium silicate board, quartz sand is used as a main raw material; fly ash is taken as an auxiliary material, under the synergistic effect of cement, the superfine ceramic fibers and the paper fibers, the effects of all the raw materials can be fully played, the refractory temperature of the superfine ceramic fibers can be 1300 DEG C or above, and when the superfine ceramic fibers are applied to the calcium silicate board, the temperature resistance and the refractory time of the calcium silicate board are improved through the synergistic effect of all the raw materials; the fly ash and the paper fibers are added, so that the crack rate of the calcium silicate board canbe reduced; the preparation method of the calcium silicate board is simple, easy to operate, low in production cost and easy for industrial production.

The invention discloses a smoke suppressant type indoor ultrathin fire-resistant paint for a steel structure. The fire-resistant paint is composed of the following components in parts by weight: 20-35 parts of synthetic resin base material, 25-45 parts of fire-resistant aid, 3-10 parts of titanium white, 5-15 parts of smoke suppressant filler, 1-3 parts of aid and 16-28 parts of solvent. Meanwhile, the invention also discloses a preparation process of the smoke suppressant type indoor ultrathin fire-resistant paint for a steel structure. According to the invention, the synthetic resin base material and the smoke suppressant filler are used, so that the prepared paint has very good fire resistance and excellent water resistance and weather resistance; and almost no toxic irritative gas is discharged in case of fire-induced expansion.

The invention relates to a fireproof material taking gypsum as a base material and a construction method thereof, and belongs to the technical field of building materials. The fireproof material taking gypsum as a base material is a two-component system, wherein the component A is prepared from the following materials in parts by weight: 30-80 parts of gypsum, 0-30 parts of polystyrene particles,0-30 parts of vermiculite, 1-15 parts of fiber, 50-100 parts of sodium carbonate, 1-5 parts of graphite, 1-5 parts of alpha-olefin sodium sulfonate, 1-10 parts of gypsum retarder, 1-3 parts of fillerand 1-3 parts of dicalcium silicate; and the component B is modified aluminum hydroxide and accounts for 5-30% of the weight of the component A. By means of the fireproof material, the one-time spraying thickness of a base material can reach 50 mm, and the problem caused by the fact that the thickness requirement is met only when workers conduct spraying on the base material many times is avoided.

The invention discloses a flame-retardant antibacterial fabric which comprises the following raw materials including, by weight, 60-70 parts of antibacterial flame-retardant fibers, 30-40 parts of cotton fibers, 50-70 parts of a 10%-12% sodium hydroxide solution, 10-12 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of nano barium oxide, 100-200 parts of treating fluid and 10-20 parts of shaping fluid. By preparing the antibacterial flame-retardant fibers and utilizing physical antibiosis, it can be guaranteed that a textile is antibacterial, the surrounding environment is not affected, viruses cannot reproduce in the textile, and therefore the textile cannot cause self-infection of the human body and cannot become a cross infection medium; and for the antibacterial flame-retardantfibers, compared with a dissolution type antibacterial additive, physical antibiosis is adopted, so that drug resistance of the human body cannot be caused, permeation into the human body like the dissolution type antibacterial additive through the skin is avoided, the immunity of the human body cannot be reduced, and an accumulated toxic reaction cannot be generated.

The invention discloses heat insulation type composite fireproof glass and a preparation method thereof. The composite fireproof glass is made of two layers of monolithic glass bonded by an adhesive,wherein each of the two layers of monolithic glass comprises the following raw materials in part by weight: 60-90 parts of silicon dioxide, 1-15 parts of aluminum oxide, 1-15 parts of sodium oxide, 1-15 parts of calcium oxide, 0.01-10 parts of germanium dioxide, 0.1-10 parts of potassium oxide, 0.2-10 parts of sodium chloride, 0.1-10 parts of zirconium dioxide, 20-80 parts of magnesium chloride, 5-40 parts of potassium chloride, 0.3-10 parts of an organophosphorus flame retardant, 1-10 parts of ferrous sulfate, 1-25 parts of gadolinium oxide, 1-25 parts of lithium oxide and 1-30 parts of cerium dioxide. The heat insulation type composite fireproof glass and the preparation method thereof, disclosed by the invention, have the beneficial effects that all the raw materials are made into a mixture, and each of the two layers of monolithic glass is made by high temperature forming, annealing, cooling and physical toughening; when the composite fireproof glass formed by the combination of the two layers of monolithic glass prepared by adopting the raw materials and the process through the adhesive is in a high-temperature environment and even a fire, the fireproof performance is excellent, the fire resistance time of the heat insulation type composite fireproof glass is greatly prolonged, and the heat insulation property is excellent.

The invention belongs to the field of water-based coating materials, and particularly relates to a water-based heavy anti-corrosion flame-retardant coating material for a metal base material, and a preparation method thereof. The water-based heavy anti-corrosion flame-retardant coating material comprises a component A and a component B according to a weight ratio of 100:(20-30), wherein the component A comprises 50-60 parts of a modified epoxy resin emulsion, 10-15 parts of functionalized modified graphene, 12-18 parts of a filler, 5-10 parts of a cosolvent, 0.5-1 part of an antifoaming agent,0.5-1 part of a leveling agent, 1-2 parts of an anti-settling agent, 0.5-1 part of an anti-freezing agent, 1-1.5 parts of a thickener, 1-2 parts of a wetting agent, 1-2 parts of a dispersant and 35-45 parts of deionized water, and the component B comprises 35 to 50 parts of a curing agent and 20 to 35 parts of a cosolvent. According to the invention, the water-based heavy anti-corrosion flame-retardant coating material has the advantages of good film-forming property, high coating adhesive force, good stability, greatly improved fire resistance limit, greatly improved bonding strength, greatly improved fire resistance time, good flame retardancy, good corrosion resistance, good water resistance, good weather resistance, low cost, safety and environmental protection; and the preparation method disclosed by the invention is simple, easy to operate, high in production efficiency, available in raw materials, low in energy consumption and capable of realizing large-scale production.

The invention discloses a building coating and a preparation method thereof. The building coating comprises the following components in parts by weight: 100 parts of polyvinyl butyral (PVB) resin, 30-50 parts of ammonium polyphosphate, 20-35 parts of titanium dioxide, 15-40 parts of amino resin, 15-30 parts of nano calcium carbonate, 25-40 parts of etherified melamine resin, 6-20 parts of hydroxyethyl cellulose, 15-30 parts of pentaerythritol, 4-20 parts of chlorinated paraffin, 6-20 parts of ethylene glycol monobutyl ether and 5-10 parts of sodium tripolyphosphate; and the building coating further comprises 20-30 parts of a styrene-acrylate copolymer emulsion, 4-10 parts of aluminum silicate fibers and 10-15 parts of a defoaming agent. The coating is applied to wall surfaces of building pipelines. The beneficial effects are as the follows that the PVB resin is adopted in the components, so that compared with an existing coating applied to building pipelines, the coating has improved adhesion capability on a pipeline, and the problem that the coating falls off and is stripped from the pipeline is reduced. The foaming rate of the coating provided by the invention is reduced, and thefire resistance time is prolonged.

The invention belongs to the technical field of flame retardants, and provides a high-hardness heat-resistant intumescent fireproof coating and a preparation method thereof. The preparation method comprises the following steps: (1) preparing modified aluminum dihydrogen phosphate: adding a silane coupling agent hydrolyzed by an alcohol into aluminum dihydrogen phosphate; performing heating and stirring for a reaction; adding hydrogen-containing silicone oil dropwise; and performing heating and stirring for a reaction; and 2) preparing the fireproof coating: adding a dispersant, titanium dioxide, a levelling agent and a composite flame retardant into distilled water under stirring, wherein the composite flame retardant comprises a ternary system and modified aluminum dihydrogen phosphate; improving a stirring speed, performing stirring, reducing the stirring speed, adding an acrylic emulsion and an antifoaming agent, and performing stirring. According to the method provided by the invention, the high-hardness heat-resistant intumescent fireproof coating prepared by adopting the method has a larger foaming ratio and a hard foaming layer after being burned, ensures the complete performance of a carbon layer, and improves the fire-resistant time of the coating layer.

The invention relates to the technical field of refractory brick structures, in particular to a refractory brick prepared on the basis of a refractory material. The refractory brick prepared on the basis of the refractory material comprises a main brick which at least comprises a first shell inside; a first limiting groove is formed in the center of the upper surface of the first shell; a groove is formed in the position, close to the right side edge, of the upper surface of the first limiting groove; a first clamping wall is integrally formed in the position, close to the left side edge, of the upper surface of the first shell; a connecting rod is fixedly connected to the lower surface of the first clamping wall; a lower groove is reserved between the first clamping wall and the first shell; a first core groove is formed in the center of the surface of the right side wall of the first shell; and first heat insulation grooves are formed in the front side and the rear side of the first core groove. Through an arranged brick core and an arranged heat insulation plate, the structural stability of the brick body is improved through the brick core; the problem of expansion and cracking of the brick body caused by continuous high temperature of the refractory brick is effectively relieved; through the heat insulation plate, the heat transfer efficiency can be reduced and the refractory effect can be effectively enhanced; and through the brick core and the heat insulation plate, the overall refractory performance of the brick body can be improved.

The invention discloses an expansion-type fireproof paint used for lost foam, which comprises the following components by weight: 35-45 parts of composite resin, 8-12 parts of n-butyl acetate, 6-9 parts of ammonium polyphosphate, 4-6 parts of chlorinated terphenyls, 3-5 parts of glass wool, 0.6-0.8 parts of potassium ammonium polyphosphate, 2-4 parts of nano-sized magnesium hydroxide, 1.2-1.5 parts of charring agent, 3-5 parts of hydroxyethyl cellulose and 0.5-0.7 parts of sodium fluosilicate. The composite resin prepared by the components with specific proportion can effectively increase the fireproof limitation, compared with a single resin, the fireproof time is increased by 6-8 minutes; the prepared paint has excellent stability can be used for coating on the surface of the lost foam, expandable graphite and nano-sized magnesium hydroxide in the components have cooperation flame retardation effect, and can bear the high/low temperature cycle influence.

The invention relates to a composite material with decorative and flame retardant functions and a construction method thereof, and belongs to the technical field of building materials. The composite material is a two-component system, and is composed of a component A and a component B. The component A is prepared from the following materials in parts by weight: 30 to 100 parts of gypsum, 0 to 30 parts of polystyrene particles, 0 to 30 parts of vermiculite, 1 to 15 parts of fiber, 50 to 100 parts of sodium carbonate, 1 to 5 parts of graphite, 1 to 5 parts of alpha-olefin sodium sulfonate, 1 to10 parts of a gypsum retarder, 1 to 3 parts of a filler, 1 to 3 parts of dicalcium silicate and 1 to 5 parts of pigments. The component B is modified aluminum hydroxide and accounts for 5-30% of the weight of the component A. The composite material has the advantages of long fire-resistant time and good heat insulation performance. The composite material also has a decorative property, and reflective and decorative effects by adding the nano scale pigments, and the added modified pigments are high in saturation degree, strong in tinting strength, good in dispersing property, high in covering power and high in opaqueness.

The invention relates to the technical field of fire retardant pretreatment, and especially relates to a coating technology of a fire retardant. The technology comprises the steps of material preparation, coating wax preparation, fire retardant coating and post-treatment. The technology has the advantages of simplicity and low cost, and is suitable for coating general powdery or granular fire retardants; and the coated fire retardant obtained through the technology has good waterproof property, and has no dissolving phenomenon in an aqueous fireproof coating system, so the foaming rate of ultrathin aqueous fireproof coatings containing the coated fire retardant can reach 30 times, the fireproof period and the coating layer waterproofing performance of the coatings are effectively improved, and the coatings are suitable for being further promoted and applied.