INSULATIVE PROPERTIES OF TWO THERMO-METAL NEOPRENES

Authors
  1. Ducharme, M.B.
  2. Firm, J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Recently, Yamomoto Corporation introduced on the market a new type of diving suit fabric called thermo-metal neoprene. It consists of a closed-cell neoprene with the inner cloth lining coated with metal. The metal-coated lining is claimed to act as a reflective barrier that minimizes radiative heat loss from the body and hence, improves the thermal properties of the fabric by 25% over uncoated neoprene. The objective of the present study was to verify the claims of the manufacturer by comparing the insulation of two thermo-metal neoprenes (titanium and stainless steel coated) to the current Canadian Forces Arctic diving suit neoprene (CF-N) in a dry environment at 1 atmosphere and in a wet environment under various pressures to simulate dives up to 100 m. It was found that the thermal insulation of the two thermo-metal neoprenes tested was significantly higher than that of the CF-N in both the dry and the wet environments. The best thermo-metal neoprene, the stainless steel coated neoprene, averaged an improvement of 53-60% over the CF-N depending upon the testing environment. The insulative properties of the thermometal neoprenes were affected, however, by the dives, decreasing by about 12% after two dives.
Report Number
DCIEM-93-53 — Research Report
Date of publication
01 Dec 1993
Number of Pages
18
DSTKIM No
94-00573
CANDIS No
137642
Format(s):
Hardcopy;Originator's fiche received by DSIS

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