Accession Number : ADA956144

Title :   Thermal Insulation Materials for Diver's Underwear Garment.

Descriptive Note : Final rept. 1977-1978,

Corporate Author : NAVY CLOTHING AND TEXTILE RESEARCH FACILITY NATICK MA

Personal Author(s) : Audet, Norman F. ; Orner, George M. ; Kupferman, Zelig

Report Date : FEB 1980

Pagination or Media Count : 31

Abstract : The Navy Clothing and Textile Research Facility (NCTRF) conducted studies on commercially available foam and fibrous thermal insulating materials to determine those which would be effective in a diver's dry-suit underwear garment. An effective insulation had to allow the pressurized gaseous environment existing within the diver's dry suit to permeate the insulation, have good compressional resistance at hydrostatic pressures up to 2 psi (13.8 kPa), and provide an intrinsic thermal insulation value of 1.0 to 1.5 clo. To establish potential candidate materials, NCTRF studied a number of open-cell polyurethane foams having different pore sizes, densities, and thicknesses, and a low-density-polypropylene microfiber batt material for both thermal insulation and compressional resistance properties. Evaluations of candidate materials and comparisons with existing materials used in diver's dry-suit underwear indicated that a fine pore open cell foam and the polypropylene microfiber batt

Descriptors :   *THERMAL INSULATION, *UNDERWEAR, *DIVER EQUIPMENT, *TEMPERATURE CONTROL, CELLS, COLD WATER, COMPARISON, ENVIRONMENTS, FOAM, HEAT LOSS, HYDROSTATICS, INSULATION, LOW DENSITY, MATERIALS, PERMEABILITY, POLYPROPYLENE, PRESSURE, REQUIREMENTS, RESEARCH FACILITIES, TEXTILES, THERMAL RESISTANCE, VALUE, DIVING SUITS, PROTECTION, BODY TEMPERATURE, NAVAL PERSONNEL, HEAT PRODUCTION(BIOLOGY), NAVAL OPERATIONS.

Subject Categories : Life Support Systems
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE