Graphene intumescent low-smoke and fire-proof coating and preparation method thereof
A fire retardant coating and graphene technology, applied in the field of coatings, can solve the problems of poor carbonization layer strength, peeling off the surface of the substrate, etc., and achieve the effects of improving strength, resisting the release of harmful gases, and improving fire resistance.
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Embodiment 1
[0029] A graphene-based intumescent low-smoke fireproof coating, made of the following raw materials in parts by weight: 270 parts of waterborne polyurethane, 200 parts of 2-chloroethyl phosphonate, 30 parts of fluorinated graphene, and 12 parts of graphene oxide , 30 parts of carbon fiber powder, 10 parts of melamine borate, 3 parts of dipentaerythritol, 1.5 parts of basic copper molybdate, 10 parts of perlite, 5 parts of octamethylcyclotetrasiloxane, 3 parts of alkylphenol polyoxyethylene ether, 2 parts of dicyandiamide, 300 parts of water.
[0030] First prepare fluorinated graphene, the steps are as follows: add graphene oxide into deionized water, and ultrasonically treat it for 2 hours to obtain an aqueous solution of graphene oxide; add the aqueous solution of graphene oxide into a hydrothermal kettle lined with polytetrafluoroethylene, and then add oxidizing agent, reacted at 150°C for 25 hours, cooled to room temperature after the reaction, filtered, washed the filter...
Embodiment 2
[0035] A graphene-based intumescent low-smoke fireproof coating, made of the following raw materials in parts by weight: 250 parts of water-based epoxy resin, 150 parts of 2-chloroethyl phosphonate, 20 parts of fluorinated graphene, graphene oxide 15 parts, 20 parts of carbon fiber powder, 15 parts of melamine borate, 4 parts of dipentaerythritol, 1.8 parts of basic copper molybdate, 5 parts of perlite, 4 parts of octamethylcyclotetrasiloxane, 4 parts of alkylphenol polyoxyethylene ether Parts, 1.5 parts of ammonium phosphate compound, 250 parts of water.
[0036] First prepare fluorinated graphene, the steps are as follows: add graphene oxide into deionized water, and ultrasonically treat it for 2 hours to obtain an aqueous solution of graphene oxide; add the aqueous solution of graphene oxide into a hydrothermal kettle lined with polytetrafluoroethylene, and then add oxidizing agent, reacted at 100°C for 23 hours, cooled to room temperature after the reaction, filtered, wash...
Embodiment 3
[0041] A graphene-based intumescent low-smoke fireproof coating is made of the following raw materials in parts by weight: 200 parts of water-based acrylic resin, 250 parts of 2-chloroethyl phosphonate, 25 parts of fluorinated graphene, and 13 parts of graphene oxide. 40 parts of carbon fiber powder, 13 parts of melamine borate, 5 parts of dipentaerythritol, 2 parts of basic copper molybdate, 15 parts of perlite, 5 parts of octamethylcyclotetrasiloxane, 5 parts of alkylphenol polyoxyethylene ether , 2 parts of ammonium phosphate compound, 400 parts of water.
[0042] First prepare fluorinated graphene, the steps are as follows: add graphene oxide into deionized water, and ultrasonically treat for 3 hours to obtain graphene oxide aqueous solution; add graphene oxide aqueous solution into a hydrothermal kettle lined with polytetrafluoroethylene, and then add fluorine oxidizing agent, reacted at 200°C for 22 hours, cooled to room temperature after the reaction, filtered, washed t...
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