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Combustion of velcro in low gravityAn experimental program was conducted to investigate the low gravity burning characteristics on nylon and Nomex Velcro fastening tapes in an atmosphere of 30-percent oxygen, 70-percent nitrogen at a 70-kPa pressure. The tests were conducted using the NASA Lewis Research Center Zero Gravity Facility. The test results, as documented by high-speed cameras, indicate that both nylon and Nomex burn in low gravity for the full 5.18 sec test time but that Nomex burns less vigorously than nylon. Nylon melts as it burns, whereas Nomex forms a solid char. Nylon also sputters burning droplets as it burns. Thus, from these limited tests, it appears that Nomex Velcro is less hazardous than nylon Velcro for spacecraft applications. The results also show that residual gas velocities, and by analogy spacecraft air circulation, can enhance the low-gravity combustion.
Document ID
Document Type
Technical Memorandum (TM)
Olson, Sandra L.
(NASA Lewis Research Center Cleveland, OH, United States)
Sotos, Raymond G.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 5, 2013
Publication Date
March 1, 1987
Subject Category
Nonmetallic Materials
Report/Patent Number
NAS 1.15:88970
Accession Number
Funding Number(s)
PROJECT: RTOP 674-22-05
Distribution Limits
Work of the US Gov. Public Use Permitted.
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