Artificial aging of high-density polyethylene by ultraviolet irradiation

Authors
Carrasco, F Pages, P Pascual, S Colom, X
Citation
F. Carrasco et al., Artificial aging of high-density polyethylene by ultraviolet irradiation, EUR POLYM J, 37(7), 2001, pp. 1457-1464
Citations number
18
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
EUROPEAN POLYMER JOURNAL
ISSN journal
00143057 → ACNP
Volume
37
Issue
7
Year of publication
2001
Pages
1457 - 1464
Database
ISI
SICI code
0014-3057(200107)37:7<1457:AAOHPB>2.0.ZU;2-P
Abstract
Artificial aging of high-density polyethylene exposed to UV irradiation, wi th wavelength close to 350 nm, in the presence of air. has been studied in this paper. Such irradiation is one of the environmental factors which affe ct most to weather exposed polyethylene. The structural modifications and c hemical changes experienced by the polymer by the application of Fourier-tr ansform infrared spectrophotometry( FTIR), mainly polymeric chain breaking, branching and oxidation, have been studied. The variation of crystallinity has also been determined by FTIR. Finally, the evolution of the mechanical properties versus the irradiation time has been closely followed. (C) 2001 Elsevier Science Ltd. All rights reserved.