Method for corrosion prevention

Abstract

The composition described herein for the prevention of corrosion comprises: sacrificial metal particles more noble than a metal substrate to which the composition contacts; carbonaceous material that can form electrical contact between the sacrificial metal particles; and means for providing an anticorrosion coating material for the metal substrate. The composition can form a coating on a metal substrate surface. A method for applying the composition for the prevention of corrosion is also described herein.

1 . A corrosion prevention composition comprising:
 sacrificial metal particles, wherein the sacrificial metal particles comprise at least one metal of nickel or cobalt;   a polymeric matrix, wherein the polymeric matrix comprises at least one amino hardened epoxy; and   carbonaceous material that forms electrical contact between the sacrificial metal particles, wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and is adapted to prevent oxidation of the layer of iron (II) on the associated metal substrate from an iron (II) to an iron (III), and wherein the sacrificial metal particles have a higher reduction potential than the associated metal substrate.   
     
     
         2 . The composition of  claim 1 , wherein the sacrificial metal particles are microparticles or nanoparticles, wherein the sacrificial metal particles comprise 0.00001% by weight to about 95% by weight of the composition. 
     
     
         3 . The composition of  claim 1 , wherein the carbonaceous material comprises graphitic carbon, wherein the graphitic carbon comprises at least one graphitic carbon of microhorns, single-walled nanotubes, double-walled nanotubes, multi-walled nanotubes, graphite, and graphene. 
     
     
         4 . The composition of  claim 1 , wherein the carbonaceous material is functionalized, wherein the carbonaceous material comprises about 0.1% by weight to about 20% by weight of the composition. 
     
     
         5 . The composition of  claim 4 , wherein the carbonaceous material comprises about 0.1% by weight to about 4% by weight of the composition. 
     
     
         6 . The composition of  claim 1 , wherein the composition further comprises a flowable material, wherein the flowable material comprises at least one polymer of polyacrylate, polyacrylonitrile, polybitumeate, polyethylene, polypropylene, polybutadiene, polyurea, polyamide, polyimide, polyurethane, polyvinylchloride, aspartates, fluoropolymers, silicone, siloxanes, rubber, and epoxy. 
     
     
         7 . The composition of  claim 1 , wherein the composition further comprises cellulose, wherein the cellulose comprises at least one cellulose of functionalized cellulose and amorphous fragmented cellulose. 
     
     
         8 . The composition of  claim 1 , wherein the composition further comprises an antioxidant, wherein the antioxidant comprises at least one antioxidant of hydrochinon, tannic acid, lignin, lignin fragments, polyunsaturated fats, esters of polyunsaturated fats, and pine oil. 
     
     
         9 . The composition of  claim 8 , wherein the composition further comprises aluminum i-propoxide. 
     
     
         10 . The composition of  claim 1 , wherein the composition further comprises trimethyl borate. 
     
     
         11 . The composition of  claim 1 , wherein the composition further comprises lead oxide. 
     
     
         12 . The composition of  claim 1 , wherein the composition further comprises at least one compound of silica, alumina, titanium oxide, copper oxide, and tin oxide. 
     
     
         13 . The composition of  claim 1 , wherein the composition further comprises a second set of sacrificial metal particles, wherein the second set of sacrificial metal particles have a lower reduction potential than the associated metal substrate, wherein the second set of sacrificial metal particles having a lower reduction potential than the associated metal substrate are at least one of zinc, aluminum, and magnesium. 
     
     
         14 . A corrosion prevention composition comprising:
 sacrificial metal particles, the sacrificial metal particles comprising at least one metal of nickel and cobalt;   carbonaceous material comprising multi-walled graphitic carbon that can form electrical contact between the sacrificial metal particles;   a flowable material comprising epoxy functionalities; and   an antioxidant comprising at least one antioxidant of hydrochinon, tannic acid, lignin, lignin fragments, polyunsaturated fats, esters of polyunsaturated fats, and pine oil, wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and the composition is adapted to prevent oxidation of the layer of iron (II) oxide on the associated metal substrate from an iron (II) to an iron (III).   
     
     
         15 . A corrosion prevention composition comprising:
 sacrificial metal particles, wherein the sacrificial metal particles are molybdenum;   carbonaceous material that forms electrical contact between the sacrificial metal particles;   a polymeric matrix, wherein the polymeric matrix comprises at least one amino hardened epoxy; and   wherein the composition is adapted to form a layer on top of a layer of iron (II) oxide on an associated metal substrate comprising iron and the composition is adapted to prevent oxidation of the layer of iron (II) oxide on the associated metal substrate from an iron (II) to an iron (III), and wherein the sacrificial metal particles have a higher reduction potential than the associated metal substrate.   
     
     
         16 . The composition of  claim 15 , wherein the sacrificial metal particles comprise 0.00001% by weight to about 95% by weight of said composition. 
     
     
         17 . The composition of  claim 15 , wherein the carbonaceous material comprises graphitic carbon, wherein said graphitic carbon comprises at least one graphitic carbon of microhorns, single-walled nanotubes, double-walled nanotubes, multi-walled nanotubes, graphite, and graphene. 
     
     
         18 . The composition of  claim 15 , wherein the polymeric matrix is a flowable material, wherein the flowable material comprises at least one polymer of polyacrylate, polyacrylonitrile, polybitumeate, polyethylene, polypropylene, polybutadiene, polyurea, polyamide, polyimide, polyurethane, polyvinylchloride, aspartates, fluoropolymers, silicone, siloxanes, rubber, and epoxy. 
     
     
         19 . The composition of  claim 15 , wherein the composition further comprises cellulose, wherein the cellulose comprises at least one cellulose of functionalized cellulose and amorphous fragmented cellulose. 
     
     
         20 . The composition of  claim 15 , wherein the composition further comprises an antioxidant, wherein the antioxidant comprises at least one antioxidant of hydrochinon, tannic acid, lignin, lignin fragments, polyunsaturated fats, esters of polyunsaturated fats, and pine oil.