41results about How to "Long flame retardant time" patented technology

The invention relates to multifunctional paint with the functions of water and fire prevention, lighting, noise reduction, safe escape and decoration and a preparation method thereof. The multifunctional paint comprises a polymer emulsion, a filler, a flame retardant, a long afterglow luminescent material, an addition agent and water, and the paint comprises raw materials in weight percentage: 10 to 50 percent of the polymer emulsion, 5 to 30 percent of the filler, 10 to 30 percent of the flame retardant, 10 to 60 percent of the long afterglow luminescent material, 0.1 to 5 percent of the addition agent and 1 to 50 percent of the water. The multifunctional paint is applied to a highway tunnel, an underground garage, an underground urban traffic passage, a civil defence engineering, an underground fortification, an underground warehouse, an underground production workshop and other underground buildings, can well meet the requirements of waterproof and fireproof functions and has obvious energy-saving effect; and with the characteristic of the long afterglow of the luminescent paint, the multifunctional paint exerts the function of illumination after power failure and is used to guide personnel to safely evacuate the scene of an accident. In addition, the multifunctional paint also has certain functions of noise absorption and noise reduction.

The invention discloses waterborne fireproof coating for a steel structure and a preparation method of the waterborne fireproof coating. The waterborne fireproof coating is mainly prepared from, by weight, 15-23 parts of ammonium polyphosphate, 11-13 parts of melamine, 6-12 parts of pentaerythritol, 7-13 parts of waterborne epoxy resin, 11-15 parts of hydroxyl acrylic acid emulsion, 6-10 parts of phenolic resin, 2-6 parts of montmorillonite, 19-25 parts of deionized water, 1.0-1.8 parts of thickener, 2-4 parts of dispersion agent and 0.14-0.22 part of defoaming agent. The waterborne fireproof coating is long in flame retardance time, high in adhesive strength, less prone to seasoning crack, excellent in fire resistance, nontoxic, safe, environmental friendly, and the like.

The invention discloses passivating metal magnesium particles and a passivating method thereof. The passivating metal magnesium particles comprise the following components in percentage by weight: less than or equal to 99% and greater than or equal to 92% of Mg, less than or equal to 0.002% of S, less than or equal to 0.01% of Cu, less than or equal to 0.001% of P and less than or equal to 1.2% and greater than or equal to 0.1% of H2O. The passivating method comprises the following steps: (I), preparing a metal magnesium particle passivator, placing metal magnesium particles in the passivator, and then naturally cooling to room temperature; (II), coating a coating on the surface of the magnesium particles: firstly, coating an organic silicon compound on the surface of the metal magnesium particles, coating magnesium oxide on the surface of the metal magnesium particles, then, coating compound rare earth on the on the surface of the metal magnesium particles, and finally coating graphite powder on the surface of the metal magnesium particles; and (III), sieving the metal magnesium particles cooled to room temperature. The metal magnesium particle passivating layer is uniform in coating, and the storage and use safety is ensured.

The invention discloses organic/inorganic compound flame-retardant rigid polyurethane foam and a preparation method thereof. The organic/inorganic compound flame-retardant rigid polyurethane foam is composed of a component A, a component B and a component C, wherein the component A is composed of polyether polyol, phosphorus-containing polyol, n-pentane and auxiliaries, the component B is polyisocyanate, and the component C is an organic metal framework material (MOF). The invention also provides a preparation method of the organic/inorganic compound flame-retardant rigid polyurethane foam. The organic/inorganic compound flame-retardant rigid polyurethane foam material can remarkably improve the flame retardance of a pipe, prolong the flame-retardant time, guarantee the quality of the pipeand reduce the construction difficulty, the raw materials are green and environmentally friendly, adverse effects on the environment are avoided, and the organic/inorganic compound flame-retardant rigid polyurethane foam material has good industrial production prospects.

The invention discloses a heat-insulating fireproof coating, which comprises 14-16 parts of titanium nanopolymer; 33-37 parts of flexible emulsion; 23-27 parts of fluorocarbon resin; 12-14 parts of hydroxyethyl cellulose; and 34-16 parts of CrO ; 8~12 parts of expanded perlite; 3~8 parts of antibacterial agent; 4~6 parts of dispersant; 2~4 parts of thickener. Through the above method, the heat-insulating fire-proof coating of the present invention has the advantages of long flame-retardant time, high elongational viscosity, good fire resistance, good high-temperature resistance, remarkable anti-corrosion effect, and is not easy to produce toxic gas in high-temperature environment. advantage.

The invention belongs to the technical field of desulfurization of metallurgical molten iron and particularly relates to a preparation method of a magnesium-based desulfurizing agent. The preparation method comprises the following steps of: (1) processing a magnesium ingot raw material and feeding the processed magnesium ingot raw material into a pelletizer for pelletizing; (2) feeding a product obtained in the step (1) into the inlet of a first group of cyclone tanks (101), feeding the product into a first group of one-stage blanking bins (201) from the discharge hole of the first group of cyclone tanks (101), feeding the product into a first group of two-stage blanking bins (301) from the discharge hole of the first group of one-stage blanking bins (201), blowing the product into a final stage cyclone tank (401) and finally feeding the product into a final stage storage tank (501) and a one-stage vibrating screen (1001) for screening; (3) passivating raw material particles and charging a heated and stirred passivated magnesium material into a passivated magnesium storage bin; and (4) feeding passivated magnesium into a cyclone separator by using a radiating conveying mechanism so as to select the passivated magnesium material. The preparation method has high safety performance, remarkable environmental protection efficiency and appropriate flame retarding time; and a granularity range value meets the structural demand of a spray gun.

The invention belongs to the technical field of fire retardant coating, and relates to a fire retardant coating for a steel structure; the fire retardant coating is composed of the following raw materials in parts by weight: 300-400 parts of 325 cement, 100-150 parts of a gypsum powder, 40-80 parts of bentonite, 100-150 parts of a heavy calcium carbonate powder, 30-50 parts of high-temperature aluminum silicate fibers, and 400-500 parts of water. During preparation, the high-temperature aluminum silicate fibers are dissolved in water to prepare a glue liquid, then the 325 cement, the gypsum powder, the bentonite and the heavy calcium carbonate powder are mixed evenly and then are mixed with the glue liquid, and stirring is carried out to obtain the coating. The coating is prepared by adopting all the inorganic, non-toxic, odorless and harmless substances, is safe and environmentally friendly, is excellent in fire resistance, has no generation of harmful gas after being heated, and is low in production cost, simple in preparation process, and suitable for wide promotion and application.

The invention belongs to the technical field of polymer materials, and particularly relates to a preparation method of a flame-retardant foam tape substrate. The effect of effectively preparing the flame-retardant foam tape substrate is achieved through the modes of adding a foaming agent, a flexibilizer, an antioxidant, a lubricant and a flame retardant into low-density polyethylene, and combining with step-by-step extrusion, irradiation crosslinking and step-by-step foaming processes. The preparation method has the advantages that the preparation method of the flame-retardant substrate is reasonable and effective, the prepared foam tape substrate is good in flame-retardant performance and long in effective flame-retardant time, and the whole preparation method is efficient and economical.

The invention provides an aqueous thin coating type aluminum alloy fireproof coating material and a preparation method thereof, wherein the aqueous thin coating type aluminum alloy fireproof coating material is prepared by mixing the following raw materials by weight: 5-10 parts of an organosilicon modified acrylic emulsion, 25-30 parts of an acrylic polyester copolymer, 5-10 parts of pentaerythritol triacrylate, 20-25 parts of ammonium polyphosphate, 3-5 parts of melamine, 5-9 parts of dipentaerythritol, 2-6 parts of bentonite, 15-20 parts of titanium dioxide, 0.2-0.6 part of hydroxyethyl cellulose, 0.1-0.5 part of an anti-foaming agent, 0.3-0.5 part of a dispersant, 0.1-0.4 part of a bactericide, 0.2-0.8 part of a corrosion inhibitor, and 4-10 parts of water. According to the present invention, the aqueous thin coating type aluminum alloy fireproof coating material has advantages of uniform fineness, high bonding strength, long flame retardant time, good weather resistance, thin coating, environmental protection and the like; and the preparation method has characteristics of simple process, high production efficiency, stable product quality and environmental friendliness.

The invention relates to a petroleum or industrial fireproof thermal insulation coating, and belongs to the field of industrial fire-fighting coating. The petroleum or industrial fireproof thermal insulation coating is prepared from, by weight, 400 to 500 parts of water, 280 to 400 parts of a flexible emulsion, 100 to 180 parts of melamine, 60 to 80 parts of pentaerythritol, and an appropriate amount of an aqueous thickening agent. The flexible emulsion in the petroleum or industrial fireproof thermal insulation coating is capable of prolonging flame retardant time of a base material; foaming is adopted so as to improve the flame retardant effect further and achieve thermal insulation performance. A preparation method of the petroleum or industrial fireproof thermal insulation coating is relatively simple; cost is relatively low; the finished product can be used in industrial buildings; and workability is improved further.

The invention discloses EPP flame-retardant particles with low energy consumption. The EPP flame-retardant particles are prepared from the following raw materials in parts by weight: 130 to 150 partsof polypropylene resin, 20 parts to 40 parts of ethylene elastomer, 3 to 5 parts of benzene alkene elastomer, 10 to 15 parts of nylon resin, 1 to 3 parts of cross-linking agent, 0.t to 1 part of co-cross-linking agent, 2 to 4 parts of compatilizer, 1 to 3 parts of light stabilizer, 1 to 3 parts of antioxidant, 3 to 8 parts of reinforcing agent, 1 to 3 parts of wear-resistant agent, 3 to 5 parts offlame retardant, 3 to 5 parts of flame retardant additive, 0.5 to 1.5 parts of polyethylene wax lubricant, 3 to 5 parts of flame retardant synergist, and 3 to 20 parts of carbon black pigments. The EPP flame-retardant particles with low energy consumption provided by the invention are ingenious in design, reasonable in composition and good in flame retardant effect, and suitable for popularization and use.

The invention provides a flame-retardant bark of an artificial tree and a making method thereof. The bark is prepared from the following raw materials: epoxy resin, polyaniline, carboxyl polysiloxane, heavy calcium carbonate powder, fumed silica, pigment printing paste, glass fiber, a curing agent, a fire retardant, dibutyl phthalate and a mixed solvent. The making method comprises the following steps: adding epoxy resin into a reaction vessel, then adding the mixed solvent for dissolving, adding polyaniline into the reaction vessel, mixing polyaniline with mixing under high-speed stirring, carrying out a reaction at 20 to 25 DEG C for 1 h with a pH value controlled to be 1 and then adding carboxyl polysiloxane; continuing the reaction at a temperature in a range of room temperature to 50 DEG C for 2 to 5 h; and then adding dibutyl phthalate, heavy calcium carbonate powder, fumed silica, pigment printing paste, glass fiber, the curing agent and the fire retardant, carrying out uniformly mixing under stirring, pouring the obtained mixture into a bark die placed in advance and carrying out micro-pressure standing so as to eventually obtain the flame-retardant bark of the artificial tree. The bark of the artificial tree has lifelike texture and flame retardation effect.