Influence of the e-beam irradiation and photo-oxidation aging on the structure and properties of LDPE-OMMT nanocomposite films

被引：10

作者：

Dintcheva, N. Tz. ^{[1
]}

Alessi, S. ^{[2
]}

Arrigo, R. ^{[2
]}

Przybytniak, G. ^{[3
]}

Spadaro, G. ^{[2
]}

机构：

[1] Univ Palermo, Dipartimento Ingn Civile, I-90128 Palermo, Italy

[2] Univ Palermo, Dipartimento Ingn Chim, I-90128 Palermo, Italy

[3] Inst Nucl Chem & Technol, Dept Radiat Chem & Technol, Lab Radiat Modified Polymers, PL-03195 Warsaw, Poland

来源：

RADIATION PHYSICS AND CHEMISTRY | 2012年 / 81卷 / 04期

关键词：

LDPE-OMMT nanocomposite film; e-beam irradiation; Photo-oxidation ageing; Mechanical properties; Carbonyl index; Molecular modification; SILICATE NANOCOMPOSITES; CLAY; DEGRADATION;

D O I：

10.1016/j.radphyschem.2011.12.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper two systems, polyethylene (LDPE) and polyethylene/commercial organo-modified montmorillonite (LDPE/OMMT) nanocomposite, were subjected to e-beam irradiation at different doses and both the molecular modifications and mechanical properties have been investigated through solubility, FT-IR, calorimetric and tensile tests. Moreover, in some of the irradiated systems photo-oxidation aging was performed and its effects were studied. The results show an enhancement with irradiation of the positive effect of the nano-filler loading, related to the increase of the mechanical properties, due to the increase of the nano-filler polymer interaction. Nevertheless calorimetric and FT-IR data indicate that the well known reduction of LDPE/OMMT nanocomposite resistance to photo-oxidation ageing, with respect to LDPE, is amplified by ionizing radiation. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

引用

页码：432 / 436

页数：5