Electron radiation effects on the electrical and mechanical properties of polypropylene

Journal Article · Tue Dec 01 00:00:00 EST 1987 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1987.4334823· OSTI ID:7031643

Hammoud, A N; Laghari, J R; Krishnakumar, B

Capacitor-grade polypropylene film was irradiated in air with a 1 MeV electron beam to different doses up to 10/sup 8/ rads and the post-irradiation effects on the electrical and mechanical properties of the film were evaluated. The electrical properties included the 60 Hz a.c. breakdown voltage, dielectric constant and dissipation factor. The dielectric constant and dissipation factor were obtained at five frequencies ranging from 50 Hz to 10 kHz. The tensile properties comprised the Young's modulus, elongation-at-break and tensile strength. While the electrical and tensile properties were evaluated at room temperature, the dynamic mechanical properties were determined at a frequency of 110 Hz in a temperature range of 12/sup 0/C to 120/sup 0/C. The results obtained indicate that while the electrical properties remain relatively stable at doses up to 10/sup 7/ rads, the mechanical properties exhibit a steady decline even at lower dose levels.

• Research Organization: Dept. of Electrical and Computer Engineering, State Univ. of New York at Buffalo, Buffalo, NY (US)
• OSTI ID: 7031643
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-34:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
POLYPROPYLENE
ELECTRICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
TENSILE PROPERTIES
YOUNG MODULUS
ELECTRON BEAMS
HZ RANGE
IRRADIATION
MEDIUM TEMPERATURE
BEAMS
FREQUENCY RANGE
LEPTON BEAMS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE BEAMS
PHYSICAL PROPERTIES
POLYMERS
POLYOLEFINS
RADIATION EFFECTS
360604* - Materials- Corrosion
Erosion
& Degradation
360603 - Materials- Properties