| 摘要 |
The disclosure relates to a method for making an anticorrosive coating composition comprising an amorphous aluminum phosphate corrosion inhibiting pigment dispersed therein comprising the steps of: making an amorphous aluminum phosphate corrosion inhibiting pigment by sol gel process comprising: combining an aluminum salt with phosphoric acid in an aqueous solution to form a mixture; combining a sufficient amount of base material together with the mixture to increase the pH of the mixture to form a sol comprising a dispersion of colloidal amorphous aluminium phosphate particles in a liquid; combining a further amount of the base material with the sol to cause the colloidal particles to aggregate and form a gel structure, wherein the gel comprises a three-dimensional structure of linked-together colloidal amorphous aluminum phosphate particles that encloses the liquid; and treating the gel to collapse the three-dimensional structure and remove the liquid to provide solid amorphous aluminum phosphate particles; and combining the solid amorphous aluminum phosphate particles with a binding polymer to form the anticorrosive coating composition, wherein the binding polymer is selected from the group consisting of solvent-based polymers, water-borne polymers, and combinations thereof.The disclosure also relates to an anticorrosion system using the coating and a method of producing it. |
