The effect of UV light on the thermooxidative stability of linear low density polyethylene films crosslinked by ionizing radiation


Sen M., Basfar A.

RADIATION PHYSICS AND CHEMISTRY, vol.52, pp.247-250, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52
  • Publication Date: 1998
  • Doi Number: 10.1016/s0969-806x(98)00149-2
  • Journal Name: RADIATION PHYSICS AND CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.247-250
  • Keywords: linear low density polyethylene, thermooxidative stability, ionizing radiation, UV-light
  • Hacettepe University Affiliated: Yes

Abstract

The effect of ultraviolet (UV) light on the thermooxidative stability of Linear Low Density Polyethylene(LLDPE) films was studied. LLDPE was stabilized with phenolic type antioxidant known as Irganox 1010, hindered amine light stabilizer known as Chimmasorb 944 and phenolic type gamma stabilizer. The influence of these additives on the thermooxidative stability of gamma and UV irradiated LLDPE were investigated by isothermal Differential Scanning Calorimeter (DSC). The oxidation induction time (OIT) experiments indicate that antirad free LLDPE films which contains antioxidant and UV stabilizer are more sensitive to gamma and UV radiation. On the other hand, films which contain antirad and irradiated to different doses of gamma-radiation demonstrated improved thermooxidative stability.