A corrosion resistant material is described including a substrate, a first material including less than about 90% of an amino group or epoxy group, between about 0.05% and about 50% siloxane, between about 5% and about 80% nanoparticles, microparticles, or macroparticles, and between about 0.1% and about 5% of a first functionalized graphitic material, a second material including less than about 90% of a silyl group, between about 0.05% and about 50% siloxane, between about 5% and about 80% nanoparticles, microparticles, or macroparticles, and between about 0.1% and about 5% of a second functionalized graphitic material, and a third material including less than about 90% of an amino group or epoxy group and a silyl group, between about 0.05% and about 50% siloxane, between about 5% and about 80% nanoparticles, microparticles, or macroparticles, and between about 0.1% and about 5% of a third functionalized graphitic material.

In one aspect, a coating for protecting a component exposed to a corrosive environment includes an epoxy phenolic resin and graphene nanoplatelets. In another aspect, a method of protecting a an article exposed to a corrosive environment includes applying a corrosion-resistant epoxy phenolic coating to a surface of the article exposed to a corrosive environment and curing the corrosion-resistant epoxy phenolic coating. The coating comprises 0.1 to 2.0 weight percent graphene nanoplatelets containing 5 to 15 atomic percent oxygen.

A surface treatment solution composition for forming an inorganic film, comprising: 10 to 30% by weight of a trivalent chromium compound containing chromium phosphate (A) and chromium nitrate (B) and satisfying a content ratio A/(A+B) of 0.3 to 0.6; 5 to 50% by weight of a silane compound; 0.2 to 3% by weight of a vanadium-based rust-inhibiting and corrosion-resisting agent; 0.5 to 5% by weight of a cobalt-based rust-inhibiting and corrosion-resisting agent; and 12 to 84.3% by weight of water, an alloyed hot-dip galvanized steel sheet surface-treated using the composition, and a method for manufacturing the alloyed hot-dip galvanized steel sheet, are provided, and the surface treatment solution composition containing the trivalent chromium compound has an excellent effect on corrosion resistance, blackening resistance, fuel resistance, weldability, and alkali resistance.

The invention pertains to an aqueous coating composition comprising: an aqueous latex of a copolymer consisting essentially of recurring units derived (i) from vinylidene chloride (VDC), (ii) from vinyl chloride (VC), (iii) from one or more than one alkyl (meth)acrylate having from 1 to 12 carbon atoms in the alkyl group [monomer (MA)] and (iv) from one or more than one aliphatic alpha-beta unsaturated carboxylic acids [monomer (AA)], the proportion of recurring units derived from monomer (AA) being of at least 1.0 wt %, with respect to the total weight of the copolymer [copolymer (A)], wherein: (A) the said copolymer (A) is stable against dehydrochlorination, in a manner such that the total chloride content of the solid residue of the aqueous latex, after thermal treatment at about 120 C. for 2 hours, is of less than 1000 ppm, with respect to the total weight of the copolymer (A); (B) the said copolymer (A) does not to undergo any significant crystallization upon heating, in a manner such that the ratio of (j) its crystallinity index (CI) after a thermal treatment involving heating at 60 C. for 48 hours to (jj) its crystallinity index before such thermal treatment (Cl.sub.after thermal treatment/CI.sub.before thermal treament) is less than 1.15; and at least one anti-corrosion pigment comprising an aluminium salt of a (poly)phosphoric acid modified with an alkaline earth metal oxide [pigment (P)]; at least one non-ionic surfactant [surfactant (NS)]; and at least one inorganic filler [filler (I)] different from pigment (P), in an amount such that the overall pigment volume concentration (PVC), comprehensive of pigment (P) and filler (I), is comprised from 20 to 40% vol., when determined with respect to the dried coating composition.

Provided is a coating material including barium oxide and/or barium hydroxide, and a metal sulfate, wherein a soluble amount of the metal sulfate in 100 g of water is 0.5 g or more at 5 C.

A coating composition for application to a substrate utilizing a high transfer efficiency applicator. The coating composition includes a carrier and a binder. The coating composition has an Ohnesorge number (Oh) of from about 0.01 to about 12.6, the coating composition has a Reynolds number (Re) of from about 0.02 to about 6,200, and the coating composition has a Deborah number (De) of from greater than 0 to about 1730.

Anti-corrosion nanoparticle compositions include a carrier and a plurality of nonionic metal nanoparticles. The metal nanoparticles can be spherical-shaped and/or coral-shaped metal nanoparticles. The nanoparticles are selected so as to locate at the grain boundaries of a metal or metal alloy when the anti-corrosion composition is applied to the metal or alloy, thereby reducing or preventing intergranular corrosion of the metal or alloy.

Anisotropic zinc phosphate particles and zinc metal mixed phosphate particles having an orthorhombic crystal structure and a platelet-shaped particle morphology are obtained from a composition comprising at least one phosphate compound; at least one zinc compound and at least one chelate complexing agent having at least two oxygen-containing groups and at least one solvent.

A method of selecting a corrosion-inhibiting substance includes selecting a corrosion-inhibiting substance to include a non-tungstate anodic corrosion inhibitor with respect to an amount of zinc in an aluminum alloy substrate that is to be coated with the corrosion-inhibiting substance.

This disclosure relates to an inorganic-organic metal phosphate ceramic coating from the reaction of an inorganic phosphate of the formulas (i) A.sub.m(H.sub.2PO.sub.4).sub.m.nH.sub.2O or (ii) AH.sub.3(PO.sub.4).sub.2.nH.sub.2O; where A is ammonium or an m-valent metal element; m=1, 2, or 3; and n is 0 to 25; and at least one metal oxide or hydroxide represented by the formula B.sub.2mO.sub.m or B(OH).sub.2m, where B is a 2m-valent metal; and m=1 or 1.5; thereof; and at least one polymer capable of reacting with at least the one metal oxide or hydroxide; or a first organic precursor combined with the inorganic phosphate and a second organic precursor combined with the at least one metal oxide or hydroxide, the second organic precursor configured to chemically react with the one or more first organic precursor.