- Author
-
Kupferman, Z.
|
Winer, H. P.
- Title
- Flame-Resistant Materials for use in Pyrotechnic Safety Clothing. Final Report.
- Coporate
- Navy Clothing and Textile Research Facility, Natick, MA
- Report
-
AD/A-146857,
September 1984,
55 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
pyrotechnics
|
protective clothing
|
flame resistant materials
|
kynol (trademark)
|
research facilities
- Abstract
- Twelve material assemblies were tested for possible use in pyrotechnic safety clothing that the Navy Clothing & Textile Research Facility (NCTRF), natick, MA, undertook to develop for the U.S. Army Munitions Production Base Modernization Agency, Dover, NJ. The 12 assemblies, each containing an outershell flame-and-heat block fabric, high-temperature-resistant batt insulation, and expanded polytetrafluoroethylene (PTFE) plastic film ;a,omated tp a 3.2-ounce Nomex fabric, were exposed to a "flash-off" of 15 pounfd of pyrotechnic illuminant composition. Two of the outershell fabrics, a 15.5-ounce PBI/OPF (20/80) fabric and a 16-ounce OPF fabric, along with kynol and Kevlar batt insulations, were found to be significantly better than the others. Either of the two outershell fabrics in assembly with kevlar or kynol batts should show a temperature transmission of less than 115 degrees F as determined with a "skin simulant" sensor when exposed to a 6-second "flash-off" of about 5500 deg. F. For the initial prototype pyrotechnic safety clothing, NCTRF recommended a fabric assembly containing a 15.5-ounce PBI/OPF (20/80) flame-and-heat block outershell fabric, a 10-ounce para-aramid (Kevlar) batt insulation, and a vapor barrier/comfort fabric consisting ot a moisture-vapor-permeable plastic film (PTFE) laminated to a 5.5-ounce FR cotton fabric. NCTRF also recommended consideration of PBI webbing hold-down straps and PBI sewing thread.