STP445

    Effect of Deep-Ocean Environment on Plastics

    Published: Jan 1969


      Format Pages Price  
    PDF Version (360K) 15 $25   ADD TO CART
    Complete Source PDF (3.9M) 15 $55   ADD TO CART


    Abstract

    As part of a research program to determine the effects of the deep-ocean environments on materials, the U.S. Naval Civil Engineering Laboratory (NCEL) placed various plastic materials, such as Teflon, polyethylene, delrin, acrylics, etc., in rod form and vinyl plastics in tube form on the sea floor of the Pacific Ocean. The specimens were exposed for periods up to two years at depth of 5640 ft and one year at depth of 2370 ft. When recovered from the sea, the plastic specimens were examined for biological deterioration and marine growth. These plastics were also tested for hardness and moisture absorption. Many of the plastic specimens were damaged by marine boring organisms. Teflon absorbed the least amount of moisture while cellulose acetate absorbed the most amount of moisture during the exposure period.

    Keywords:

    biodeterioration, deep ocean, fouling, slime growth, marine organism sediment, marine microorganisms, marine borers, Xylophaga washingtona, plastics, rubber, glass, electrical cable insulation, wood, ropes, hardness test, moisture absorption test, evaluation, tests


    Author Information:

    Muraoka, JS
    Senior project scientist, U.S. Naval Civil Engineering Laboratory, Port Hueneme, Calif.


    Paper ID: STP32011S

    Committee/Subcommittee: G01.09

    DOI: 10.1520/STP32011S


    CrossRef ASTM International is a member of CrossRef.