Dielectric properties and thermal stability of γ-irradiated inorganic nanofiller modified PVC

被引：11

作者：

Ciuprina, Florin ^{[2
]}

Zaharescu, Traian ^{[1
]}

Jipa, Silviu ^{[1
,3
]}

Plesa, Ilona ^{[2
]}

Notingher, Petru V. ^{[2
]}

Panaitescu, Denis ^{[4
]}

机构：

[1] ICPE CA, INCDIE, Bucharest 030138, Romania

[2] Univ Politehn Bucuresti, Fac Elect Engn, ELMAT Lab, Bucharest 060042, Romania

[3] Valahia Univ Targoviste, Fac Sci, Targoviste 130024, Romania

[4] ICECHIM, Natl Inst Res & Dev Chem & Petrochem, Bucharest 060021, Romania

来源：

RADIATION PHYSICS AND CHEMISTRY | 2010年 / 79卷 / 03期

关键词：

Polyvinylchloride; Nanocomposites; Dielectric properties; gamma-irradiation; POLY(VINYL CHLORIDE); RADIATION; INSULATION;

D O I：

10.1016/j.radphyschem.2009.08.018

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：

The dielectric characteristics of polyvinyl chloride nanocomposites containing titania, silica and alumina at the concentration of 5% were investigated by dielectric spectroscopy. The sharp modification in the permittivity and dielectric loss of neat and irradiated PVC samples over the low frequency range may be explained by the interaction between external electrical field and the dipoles formed during high energy exposure. The material characterization is completed by the thermal stability assay based on the accumulation of carbonyl units in the sample matrices, which provides the differences in the molecular level contact between host polymer and fillers. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：379 / 382

页数：4

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