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Evaluation of high temperature structural adhesives for extended service, phase 4The evaluation of three phenylquinoxaline polymers as high temperature structural adhesives is presented. These included an experimental crisskubjabke oiktner (X-PQ) and two experimental materials (PPQ-2501) and (PPQ-HC). Lap shear, crack extension, and climing drum peel specimens were fabricated from all three polymers, and tested after thermal, combined thermal/humidity, and stressed Skydrol exposure. All three polymers generally performed well as adhesives at initial test temperatures from 219K (-67 F) to 505K (450 F) and after humidity exposure. The 644K (700 F) cured test specimens exhibited superior Skydrol resistance and thermal stability at 505K (450 F) when compared to the 602K (625 F) cured test specimens.
Document ID
19860011096
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hendricks, C. L. (Boeing Aerospace Co. Seattle, WA, United States)
Hill, S. G. (Boeing Aerospace Co. Seattle, WA, United States)
Hale, J. N. (Boeing Aerospace Co. Seattle, WA, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1985
Subject Category
Nonmetallic Materials
Report/Patent Number
NASA-CR-177936
NAS 1.26:177936
Accession Number
86N20567
Funding Number(s)
CONTRACT_GRANT: NAS1-15605
PROJECT: RTOP 505-33-33
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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