DEVELOPMENT OF IMPROVED INHIBITIVE PRIMERS

The application of a number of different organic compounds as corrosion inhibitors was investigated in primers for aluminum and titanium alloys exposed to marine atmospheres. The candidate compounds belong to the classes of hydroxy-anthraquinones, lake forming diazo compounds phthaleins, triphenyl-methanes and phthalocyanines. 1-hydroxyanthraquinone, Na-phthalocyanine, pyrocatechol violet and orange II (azo dye) compared favorably with alizarin for aluminum. Further, these studies opened up the possibilities of a wide range of organic compounds for corrosion inhibition investigations. The bleed-through behaviour of alizarin through epoxy topcoat was observed to be obviated by using 1:1 alizarin:strontium chromate. Na-phthalocyanin and pyrocatechol violet-based primers did not show this bleed-through behavior. Results of the investigations on stress corrosion of titanium Ti-6Al-4V alloy did not prove conclusive. (Author)

• Corporate Authors:

  IIT Research Institute

  10 West 35th Street
  Chicago, IL  United States  60616
• Authors:
  • Rajan, K S
• Publication Date: 1970-12-7

Media Info

• Pagination: 98 p.

Subject/Index Terms

• TRT Terms: Aluminum alloys; Corrosion protection; Primers; Protective coatings; Titanium alloys
• Subject Areas: Construction; Marine Transportation;

Filing Info

• Accession Number: 00016702
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: IITRI-C6202 Tech Rpt
• Contract Numbers: N00019-70-018
• Files: TRIS
• Created Date: Aug 27 1973 12:00AM