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Electron-Beam-Induced Modifications in High-Density Polyethylene

Kumar, Harish HG and Mathad, RD and Ganesh, S and Sarma, KSS and Haramaghatti, CR (2011) Electron-Beam-Induced Modifications in High-Density Polyethylene. In: Brazilian Journal of Physics, 41 (1). pp. 7-14.

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Official URL: http://www.springerlink.com/content/68732966w07l5r...


Post-irradiation studies have been carried out to elucidate the effects of electron beam irradiation on the structural, optical, dielectric, and thermal properties of high-density polyethylene (HDPE) films. The experimental results showed that both the optical band gap and activation energy of HDPE films decreases with an increase in the doses of electron radiation. The electrical measurements showed that dielectric constant and the ac conductivity of HDPE increases with an increase in the dose of electron radiation. The thermal analysis carried out using DSC and TGA revealed that the melting temperature, degree of crystallinity, and thermal stability of the HDPE films increased, obviously, due to the predominant cross-linking reaction following high doses of electron irradiation.

Item Type: Journal Article
Publication: Brazilian Journal of Physics
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Keywords: High-density polyethylene;Electron beam irradiation;UV-vis spectroscopy;Dielectric constant;Optical band gap; Activation energy
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 01 Jun 2011 12:12
Last Modified: 01 Jun 2011 12:12
URI: http://eprints.iisc.ac.in/id/eprint/37812

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