A self-repairing graphene composite titanium nano heavy-duty anti-corrosion material and its preparation and use method
A graphene composite, titanium nanotechnology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of large cathode and small anode galvanic galvanic corrosion, difficulty in exerting corrosion inhibition effect, and limited amount of addition, etc. The effect of good corrosion inhibition effect, easy operation and simple use method
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Embodiment 1
[0064] Preparation of corrosion inhibitors:
[0065] Hollow glass microspheres with a particle size of 1-20 μm are selected and heated to 300° C. by microwave. Place the heated glass microspheres in a minus 20°C freezer for 8 hours, and take them out to break holes.
[0066] Soak the glass microspheres after the hole breaking into the mixed solution of HEDP (hydroxyethylidene diphosphonic acid) and HPAA (hydroxyphosphonoacetic acid) The aqueous solution is mixed according to the mass ratio of 1:9), the mass ratio of the glass microspheres and the HEDP-HPAA mixed solution is 10:1, and the closed autoclave is heated to 120 ° C for 24 hours to fully absorb and saturate. Dry the treated glass microspheres in an oven at 120°C for 2 hours, and dry the water for later use.
[0067] Preparation of alumina-encapsulated silanol resin:
[0068] Dilute the silanol resin with alcohol to a viscosity of less than 100mpas, compound it with porous alumina in a dry environment, seal and evac...
Embodiment 2
[0085] Preparation of corrosion inhibitors:
[0086] Soak porous glass microspheres (with a particle size of 10-50 μm, a porosity of over 90%, and a pore size of 0.2-5 μm) into a mixture of HEDP (hydroxyethylidene diphosphonic acid) and HPAA (hydroxyphosphonoacetic acid) In the solution (obtained by mixing 60% HEDP aqueous solution and 60% HPAA aqueous solution at a mass ratio of 1:9), the closed autoclave was heated to 150°C for 24 hours under pressure to fully absorb and saturate. Dry the treated glass microspheres in an oven at 120°C for 2 hours, and dry the water for later use.
[0087] Preparation of alumina-encapsulated silanol resin:
[0088] Dilute the silanol resin with alcohol to a viscosity of less than 100mpas, compound it with porous alumina in a dry environment, seal and evacuate (vacuum degree maintains -0.06~-0.09mpa), and vacuumize for 120min, completely absorb the silanol resin and embed it in the porous in the pores of alumina. Wherein, the mass ratio of ...
Embodiment 3
[0095] The corrosion inhibitor prepared in Example 2, alumina encapsulating silanol resin and graphene-modified organic titanium nanopolymers are used to prepare self-repairing graphene composite titanium nano heavy-duty anti-corrosion materials, and the formula is as follows:
[0096] 40 parts of solvent-free bisphenol A epoxy resin, 6 parts of graphene-modified organic titanium nanopolymer, 7 parts of corrosion inhibitor, 5 parts of alumina-encapsulated silanol resin, 15 parts of 1800 mesh barium sulfate, 5 parts of 1800 mesh silicon carbide 1 part, 2 parts of dispersant (BYK110 of BYK), 0.5 part of leveling agent (BYK361N of BYK), 0.5 part of defoamer (VKDF417 of Changsha Petrochemical), coupling agent (Shanghai Tiger Polymer TECH7150) 1.5 parts, active diluent (692 of Anhui Xinyuan Chemical Industry) 3 parts.
[0097] The above-mentioned raw material components are dispersed and mixed uniformly at high speed to obtain a self-repairing graphene composite titanium nanometer ...
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