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Surface characterization and adhesion of oxygen plasma-modified LARC-TPILARC-TPI, an aromatic thermoplastic polyimide, was exposed to an oxygen plasma as a surface pretreatment for adhesive bonding. Chemical and physical changes which occurred in the polyimide surface as a result of the plasma treatment were investigated using X-ray photoelectron spectroscopy (XPS), infrared reflection-absorption spectroscopy (IR-RAS), contact-angle analysis, ellipsometry, and high resolution SEM. A 180-deg peel test with an acrylate-based pressure sensitive adhesive as a flexible adherent was utilized to study the interactions of the plasma-treated polyimide surface with other polymeric materials. The surface characterization and adhesion testing results showed that the oxygen plasma treatment, while creating a more hydrophilic, polar surface, also caused chain scission, resulting in the formation of a weak boundary layer which inhibited adhesion.
Document ID
19920043002
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chin, J. W.
(NASA Headquarters Washington, DC United States)
Wightman, J. P.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: SAMPE Quarterly
Volume: 23
ISSN: 0036-0821
Subject Category
Nonmetallic Materials
Accession Number
92A25626
Distribution Limits
Public
Copyright
Other

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