Accession Number : ADA144311


Title :   Encapsulated Multifunction Corrosion Inhibitive Primer.


Descriptive Note : Final rept. Sep 79-Jan 83,


Corporate Author : GULF SOUTH RESEARCH INST NEW ORLEANS LA


Personal Author(s) : Gupta,D V ; Grawe,J ; Bowen,F ; Cavasso,I ; Smith,J K


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a144311.pdf


Report Date : Nov 1983


Pagination or Media Count : 366


Abstract : Air Force Contract F33615-79-C-5061 investigates the possibility of using highly water soluble corrosion inhibitors as an aircraft primer as a replacement primer for hexavalent chromium primers which have been under attack for toxicity. The difficult problem of coating blistering which has made water soluble inhibition little used in primers is approached with the use of microencapsulation of the inhibitors and control release polymers to obtain controlled release. Additionally direct incorporation in the primer matrix with controlled pigment volume concentration to control internal pressures and other methods are shown. Steel inhibition showed promise as well as release polymers for corrosion protection. Some state-of-the-art corrosion pigments showed promise for aluminum and steel but none of the inhibitors performed as well as chromate inhibitors currently being used on Air Force aircraft. (Author)


Descriptors :   *POLYMERS , *CORROSION INHIBITION , *PRIMERS , *PLASTIC COATINGS , METALS , MECHANICAL PROPERTIES , MICROSTRUCTURE , MILITARY AIRCRAFT , STATE OF THE ART , CRACKING(FRACTURING) , TEST METHODS , CHROMATES , MATRIX MATERIALS , STEEL , CRACK PROPAGATION , DEFECTS(MATERIALS) , FEASIBILITY STUDIES , ALUMINUM , CONFIGURATIONS , PROTECTIVE COATINGS , ENCAPSULATION , STATISTICAL ANALYSIS , PIGMENTS , FAILURE(MECHANICS) , WATER SOLUBLE MATERIALS , MULTIPURPOSE


Subject Categories : Coatings, Colorants and Finishes
      Plastics
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE