Accession Number:

AD0867818

Title:

Development of Rain-Erosion-Resistant Coatings for High-Speed Aircraft

Descriptive Note:

Final rept. 15 Apr 1969-14 Jan 1970

Corporate Author:

SOUTHERN RESEARCH INST BIRMINGHAM AL

Report Date:

1970-03-01

Pagination or Media Count:

31.0

Abstract:

Research on development of a thermally stable, rain-erosion-resistant coating has involved, mainly, three types of polymers made from hexafluoroacetone, alkenes, and silicon-containing compounds. In addition, a silphenylene-dimethylsiloxane elastomer has been given a preliminary evaluation. The polymers based on hexafluoroacetone cure at room temperature to elastomers that have good resistance to heat and liquid fuels. More work is needed to increase molecular weights and improve tensile properties. The initial work on copolymerizing a low molecular weight polyacrylic acid with nylon is continuing. With this material, an 11 percent fixation was achieved on nylon fabric, almost the double the amount obtained with the higher molecular weight polyacrylic acid.

Subject Categories:

  • Organic Chemistry
  • Coatings, Colorants and Finishes
  • Elastomers and Rubber

Distribution Statement:

APPROVED FOR PUBLIC RELEASE