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Contact angle measurements of a polyphenyl ether to 190 C on M-50 steelContact angle measurements were performed for a polyphenyl ether on steel in nitrogen. A tilting plate and a sessile drop apparatus were used. Surface tension was measured with a maximum bubble pressure apparatus. Critical surface energies of spreading were found to be 30.1 and 31.3 dynes/cm. It was concluded that the polyphenyl ether is inherently autophobic and will not spread on its own surface film.
Document ID
19810018739
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Jones, W. R., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1981
Subject Category
Nonmetallic Materials
Report/Patent Number
E-881
NASA-TM-82628
Report Number: E-881
Report Number: NASA-TM-82628
Accession Number
81N27277
Funding Number(s)
PROJECT: RTOP 505-32-42
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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