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
收藏
页码：432 / 436
页数：5
相关论文
共 22 条
[1]   Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].
Alexandre, Michael ;
Dubois, Philippe .
Materials Science and Engineering: R: Reports, 2000, 28 (1-2) :1-63
[2]   Synthesis, structure, thermal and mechanical properties of nanocomposites based on linear polymers and layered silicates modified by polymeric quaternary ammonium salts (ionenes) [J].
Burmistr, MV ;
Sukhyy, KM ;
Shilov, VV ;
Pissis, P ;
Spanoudaki, A ;
Sukha, IV ;
Tomilo, VI ;
Gomza, YP .
POLYMER, 2005, 46 (26) :12226-12232
[3]  
Clegg D.W., 1991, IRRADIATION EFFECTS
[4]   Effect of extrusion and photo-oxidation on polyethylene/clay nanocomposites [J].
Dintcheva, N. Tz. ;
Al-Malaika, S. ;
La Mantia, F. P. .
POLYMER DEGRADATION AND STABILITY, 2009, 94 (09) :1571-1588
[5]   Polymer matrix degradation and color formation in melt processed nylon 6/clay nanocomposites [J].
Fornes, TD ;
Yoon, PJ ;
Paul, DR .
POLYMER, 2003, 44 (24) :7545-7556
[6]   Improving the properties of poly(ethylene-co-vinyl acetate)/clay composite by using electron beam irradiation [J].
Gad, Y. H. .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (21-22) :3528-3534
[7]   Flammability and thermal stability studies of polymer layered-silicate (clay) nanocomposites [J].
Gilman, JW .
APPLIED CLAY SCIENCE, 1999, 15 (1-2) :31-49
[8]   Irradiation crosslinking and halogen-free flame retardation of EVA using hydrotalcite and red phosphorus [J].
Jiao, CM ;
Wang, ZZ ;
Chen, XL ;
Yu, BY ;
Hu, Y .
RADIATION PHYSICS AND CHEMISTRY, 2006, 75 (05) :557-563
[9]   Polymer/layered silicate (clay) nanocomposites: An overview of flame retardancy [J].
Kiliaris, P. ;
Papaspyrides, C. D. .
PROGRESS IN POLYMER SCIENCE, 2010, 35 (07) :902-958
[10]   Improvement of photo-stability of LLDPE-based nanocomposites [J].
La Mantia, F. P. ;
Dintcheva, N. Tzankova ;
Malatesta, V. ;
Pagani, F. .
POLYMER DEGRADATION AND STABILITY, 2006, 91 (12) :3208-3213
123