The effect of γ-rays on PEs/PA6 blends

Abstract:

In this work, the effect of γ-rays irradiation and post-irradiation storage time onto different PEs, PA6 and their blends was studied by means of ESR spectroscopy, FTIR and DSC. These techniques can provide relevant information concerning the reaction mechanism of the polymers structural modifications that take place during their irradiation. The experimental results suggest that allyl, alkyl and polyenyl radicals are generated in the materials after the irradiation process. The dynamics dominating the process kinetics are crosslinking, chain scission and a coexistence of both, depending on the sample composition. The storage time produces a change in the kinetics dynamic.

Año de publicación:

2003

Keywords:

• Polyethylene
• Irradiation
• crystallization
• Nylon

Fuente:

scopus