. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 32. Rubber and plasHc electrical tape wrappings over plastic rods and tubes. The plastic electrical tape wrappings were neither damaged by the effects of the deep sea environment nor by any biological activity, although there was some hydroid growth over them. When the tape was removed from several plastic rods, it still had good adhesive quality and was In good condition. When the rubber and plastic tape wrappings containing small wood pieces (Figure 33) were cut and the enclosed wood removed and examined, the woo
. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 32. Rubber and plasHc electrical tape wrappings over plastic rods and tubes. The plastic electrical tape wrappings were neither damaged by the effects of the deep sea environment nor by any biological activity, although there was some hydroid growth over them. When the tape was removed from several plastic rods, it still had good adhesive quality and was In good condition. When the rubber and plastic tape wrappings containing small wood pieces (Figure 33) were cut and the enclosed wood removed and examined, the wood was found to be in excellent condition. Although the wood wrapped under the rubber tape was completely dry, the wood wrapped under the plastic tape was saturated with water. Insulation on No. 16 Wire. There was some hydroid growth over the straight and also over the coiled wire specimens (Figure 34). In the laboratory the Insulations were examined under a microscope for signs of any deterioration. The silicone rubber insulation was damaged slightly by the nibbling and biting action of some marine organisms, but the other Insulations, such as neoprene. Government rubber styrene, polyvinyl chlorides and polyethylene, were not damaged. The silicone rubber cement used to cover the ends of the wire specimens was not damaged. Electrical tests, such as insulation resistance and voltage breakdown, were conducted on these wire specimens. The results of the electrical tests are presented in Table 9. 39. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Muraoka, James S; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory
Size: 1752px × 1426px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
