Accession Number : AD0677822

Title :   CREEP BEHAVIOR OF CROSSLINKED POLYETHYLENE,

Corporate Author : UNITED STATES INDUSTRIAL CHEMICALS CO NEW YORK

Personal Author(s) : Kuckro,Gerard W. ; North,J. A. ; Lorand,George E.

Report Date : DEC 1968

Pagination or Media Count : 43

Abstract : In a vulcanized polyethylene, creep is a sensitive measure of the thermal stability of the compound. Creep is dependent upon time, temperature, applied load, state of cure and formulation. The creep test is very responsive and very versatile since the conditions are readily altered to fit the polymer under study; it is many times faster than conventional aging methods, and correlates well with accelerated oven aging; and it has a wider span of utility in that it monitors a polymer's useful life anywhere between incipient to gross degradation. Creep varies directly with the percent extract and swelling ratio and indirectly with the Hot Modulus. Also, creep provides an accurate approximation of the degree of crosslinking. (Author)

Descriptors :   (*POLYETHYLENE PLASTICS, CREEP), RHEOLOGY, VULCANIZATES, TEST METHODS, AGING(MATERIALS), CROSSLINKING(CHEMISTRY)

Subject Categories : Plastics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE