Durability of Plastics in Anaerobic Marine Sediments.
Abstract
Specimens of a wide variety of plastic sheets, ropes, and electrical cable insulations were partially buried in anaerobic harbor sediments to determine the effect of hydrogen sulfide on polymeric materials. For comparison, specimens of the same materials were exposed in aerobic surface waters. After 2-1/2 years, the specimens were all recovered. Very little change was noted in the appearance, strength, or hardness of any of the specimens of synthetic polymeric materials. In contrast, nothing remained of samples of wood and short lengths of cotton and hemp rope exposed for comparison. Similarly, natural rubber covers of samples of insulated electrical cable deteriorated during the 2-1/2 years, but plastic and synthetic rubber covers of other insulated cables underwent no visible deterioration. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1975
- Accession Number
- ADA017701
Entities
People
- H. P. Vind
- J. S. Muraoka
Organizations
- Naval Facilities Engineering Service Center