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US 2018/0202051 A1Published application
Methods and apparatuses for selecting natural product corrosion inhibitors for application to substrates
AssigneesThe Boeing Company, Universidade Federal De Minas Gerais - Ufmg
InventorsPatrick John Kinlen, Lucia Pinheiro Santos Pimenta
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Abstract
The present disclosure is directed to methods, systems and apparatuses for predictively selecting plant extracts for their inclusion in formulations to imparting anti-corrosion properties to coatings for aluminum, aluminum alloys, copper and copper alloys.
Claims26
A method for selecting a plant extract for use in a corrosion inhibiting coating for a substrate material comprising:
- performing a diphenylpiccrylhydrazyl radical scavenging assay on a plant extract sample;
- obtaining a diphenylpiccrylhydrazyl radical scavenging assay corrosion inhibition value of said plant extract sample;
- obtaining a corrosion inhibition efficiency percentage value for said plant extract sample;
- comparing the diphenylpiccrylhydrazyl radical scavenging assay value with the corrosion inhibition efficiency percentage value;
- and
- selecting a plant extract for use in a corrosion inhibition for a substrate material;
- wherein said plant extract exhibits a diphenylpiccrylhydrazyl radical scavenging assay value greater than about 80% and a corrosion inhibition efficiency percentage greater than about 80%.
4 more elements
An additive for use in a corrosion inhibiting formulation, such additive comprising:
- a plant extract selected from a plant genus comprising:
- Annona;
- Inga;
- Mangifera;
- Taraxacum;
- Bidens;
- Plantango;
- Chamomilla;
- Solidago, and combinations thereof.
6 more elements
Dependencies are inferred from the claim text.