NTRS - NASA Technical Reports Server

Back to Results
Thermal performance of aircraft polyurethane seat cushionsMeasurements were conducted on 7.6 x 7.6 cm samples of polyurethane seat cushion material in a modified National Bureau of Standards smoke density chamber to simulate real life conditions for an onboard aircraft fire or post-crash fire. In this study, a non-flaming heat radiation condition was simulated. Two aluminized polymeric fabrics (Norfab 11HT-26-A and Preox 1100-4) and one neoprene type material in two thicknesses (Vonar 2 and 3) were tested as heat blocking layers to protect the urethane foam from rapid heat degradation. Thermogravimetric analysis and differential scanning calorimetry were performed to characterize thermally the materials tested. It was found that Vonar 2 or 3 provided approximately equal thermal protection to F.R. urethane as the aluminized fabrics, but at a significant weight penalty. The efficiency of the foams to absorb heat per unit mass loss when protected with the heat blocking layer decreases in the heating range of 2.5-5.0 W/sq cm, but remains unchanged or slightly increases in the range of 5.0-7.5 W/sq cm. The results show that at all heat flux ranges tested the usage of a heat blocking layer in aircraft seats significantly improves their thermal performance.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Kourtides, D. A.
(NASA Ames Research Center Moffett Field, CA, United States)
Parker, J. A.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1982
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Society of the Plastics Industry, Annual Technical Conference on Polyurethane
Location: Bal Harbour, FL
Start Date: October 19, 1982
End Date: October 22, 1982
Sponsors: FAA
Accession Number
Distribution Limits

Available Downloads

There are no available downloads for this record.
No Preview Available