Accession Number:

AD0763378

Title:

Development and Evaluation of Deep-Sea Swimsuit Materials.

Descriptive Note:

Technical rept.,

Corporate Author:

NAVY CLOTHING AND TEXTILE RESEARCH UNIT NATICK MASS

Personal Author(s):

Report Date:

1973-06-01

Pagination or Media Count:

59.0

Abstract:

Two chemically distinct, flexible, syntactic foams--a Unit-developed, polyurethane, hollow-glass-microsphere composite and a proprietary, PVC, hollow-glass-microsphere composite--have been produced which may prove useful for swimsuit applications in deep-sea environments down to 1000 feet of salt water FSW. Tests showed that both materials were essentially incompressible to depths of 1000 FSW less than 3 and provided more insulation than currently used Neoprene-foam materials at depths greater than 20 FSW. The materials, however, were considerably heavier than the foam although significantly less dense than sea water. Standard wet-style swimsuits were fabricated from these experimental materials for verification of sample thermal-conductivity data. Suit conductivity tests performed on an instrumented copper manikin substantially confirmed the material test data obtained with a guarded hot-plate device. During construction of the suits it also became apparent that special designs and fabrication techniques would have to be developed to utilize these materials most effectively. The thermal-conductivity results measured for both material composites were higher than expected based upon theoretical derivations, indicating that further improvements may be possible in this property. Author, modified-PL

Subject Categories:

  • Plastics
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE