Effects of the electric field and gamma Radiation on the optical properties of Modified low density polyethylene

Abstract

The effect of electric field and gamma radiation on the optical properties of low density polyethylene LDPE grade CD 0230 have been studied. The samples were irradiated at gamma doses of 0-100 Mrad and varying electric field of 0-104 V/cm. The optical absorption spectra were measured in the wavelength range of 200-1100 nm. The opticl absorption coefficient a and the energy gap A E values were found to be gamma dose dependent. Also these optical parameters show a dependence on the electric field. The change in the polymer crystallinity due to irradiation can be attributed to the induced bond scission and subsequent crosslinking.