EFFECT OF INITIAL STRAINING AND $gamma$ IRRADIATION ON STRENGTH OF POLYETHYLENE

Journal Article · Sat Sep 01 04:00:00 EDT 1962 · Journal of Applied Physics (U.S.)

DOI:https://doi.org/10.1063/1.1702567· OSTI ID:4774282

Hsiao, C C; Yang, J W

Uniaxially and biaxially oriented samples of polyethylene irradiated by gamma rays are investigated at room temperature. Both the tensile strength and the modulus of elasticity are found to increase as the degree of orientation induced by homogeneous deformation increases. The tensile strength, however, decreases as the gamma dose increases, while the modulus of elasticity increases as the gamma dose increases. The combined effects seem to indicate that gamma irradiation essentially destroys the macromolecular orientation and thus reduces the tensile strength to that of unoriented solid, but produces a relatively higher elastic modulus as a result of crosslinking. (auth)

• Research Organization: Univ. of Minnesota, Minneapolis
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-033529
• OSTI ID: 4774282
• Journal Information: Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 33; ISSN JAPIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CONFIGURATION
DEFORMATION
ELASTICITY
GAMMA RADIATION
LATTICES
METALS, CERAMICS, AND OTHER MATERIALS
MOLECULES
POLYETHYLENES
POLYMERIZATION
RADIATION DOSES
RADIATION EFFECTS
TENSILE PROPERTIES