Macromolecules for inhibition of corrosion and wear. Progress report
The phthalocyanines and Schiff base compounds are uniquely qualified inhibitors for corrosion. They are high electron density molecules for interaction with the metal surface, and possess large spatially arranged structures to serve as environmental barriers. Additionally, these compounds do stack-up as layered structures which provides shear planes, thus serving as lubricants. A number of these compounds have been synthesized and studied. Both electrochemical impedance spectroscopic and potentiostatic polarization techniques were used to determine their corrosion inhibition efficiencies. Wear studies were made using grease lubricated stainless steel miniature bearings. The results have shown that Schiff base compounds can be good additives for greases as they enhance wear life of bearings and inhibit corrosion by at least and order of magnitude. Although phthalocyanines, both monomers and polymers, provided a significant corrosion inhibition efficiencies (> 90%), they were not effective lubricants compared to the Schiff bases.... Schiff Base, Phthalocyanine, Additives, Fluorinated grease.
- Research Organization:
- Naval Air Warfare Center, Warminster, PA (United States). Aircraft Div.
- OSTI ID:
- 6580455
- Report Number(s):
- AD-A-261041/8/XAB; NAWCADWAR-92112-60
- Country of Publication:
- United States
- Language:
- English
Similar Records
Inhibition of copper corrosion with Schiff base derived from 3-methoxysalicylaldehyde and O-phenyldiamine in chloride media
Corrosion inhibition of mild steel in acidic media using newly synthesized heterocyclic organic molecules: Correlation between inhibition efficiency and chemical structure
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
METALS
CORROSION PROTECTION
WEAR
PHTHALOCYANINES
CORROSION RESISTANCE
SCHIFF BASES
ADDITIVES
BEARINGS
ELECTROCHEMISTRY
ELECTRON DENSITY
GREASES
IMPEDANCE
LUBRICANTS
MONOMERS
PROGRESS REPORT
SHEAR
CHEMISTRY
DOCUMENT TYPES
DYES
ELEMENTS
HETEROCYCLIC COMPOUNDS
IMINES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
360604* - Materials- Corrosion
Erosion
& Degradation
360603 - Materials- Properties
400200 - Inorganic
Organic
& Physical Chemistry
360105 - Metals & Alloys- Corrosion & Erosion