The invention discloses a multifunctional microcapsule
corrosion inhibitor and a preparation method thereof. The multifunctional microcapsule
corrosion inhibitor takes a heat-absorbing material, namely paraffin, as a
capsule core material, an
organic polymer as a
capsule wall material and amphiphilicity-modified
inorganic nanoparticles as a
capsule wall addition agent, and is obtained according to the steps of firstly, subjecting the
inorganic nanoparticles to amphiphilic modification through an
atom transfer radical polymerization method, then mixing the paraffin, the amphiphilicity-modified
inorganic nanoparticles and monomers with an emulsifier and a co-emulsifier to obtain oil-water
emulsion under high-speed shearing, and finally adding an initiator to react. The multifunctional microcapsule
corrosion inhibitor has the advantages that the
filling problem of the high-energy
propellant charge filling
corrosion inhibitor is solved, and different substances in microcapsules achieve synergistic effects, namely heat-absorbing characteristic of the paraffin, compatibility of the
organic polymer and
propellant charge, increase of CO / CO2 ratio in a laminar boundary layer and
high resistance to heat and wear and low heat
conductivity of the inorganic nanoparticles, so that
ablation resistance of a
gun barrel is reduced in multiple angles.