Study of charge relaxations after thermal aging in poly (methyl methacrylate)

被引：8

作者：

Namouchi, F. ^{[1
]}

Smaoui, H. ^{[1
]}

Guermazi, H. ^{[1
]}

Fourati, N. ^{[2
]}

Zerrouki, C. ^{[2
]}

Agnel, S. ^{[3
]}

Toureille, A. ^{[3
]}

Bonnet, J. J. ^{[2
]}

机构：

[1] Inst Preparatoire Etud Ingenieurs Sfax, Unite Rech Phys Mat Isolants & Semiisolants, BP 805, Sfax 3018, Tunisia

[2] Conservatoire Natl Arts & Metiers, Lab Phys, F-75003 Paris, France

[3] Univ Montpellier 2, Lab Electrotech Montpellier, F-34095 Montpellier, France

来源：

PROCEEDINGS OF THE JMSM 2008 CONFERENCE | 2009年 / 2卷 / 03期

关键词：

PMMA; thermal aging; TSDC; charge relaxation; POLY(METHYL METHACRYLATE); SPACE CHARGES; SPECTROSCOPY; IRRADIATION; TSDC;

D O I：

10.1016/j.phpro.2009.11.050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Effects of thermal aging on physico-chemical and electrical properties of polymethyl methacrylate (PMMA) are reported in this paper. PMMA samples are submitted to successive heat-cooling cycles (Tmin = 20 degrees C and Tmax = 90 degrees C) in the ambient air, each cycle lasts 12h. Different techniques are thus employed to investigate structural modifications, dielectric relaxations and conduction processes. These are the Fourier Transform Infrared (FTIR) spectroscopy, thermal step method (TSM), thermally stimulated depolarization currents (TSDC), dielectric spectroscopy (DS) and current-voltage technique. Results are discussed and a relationship between structural modifications and charge relaxations was emphasized. We demonstrated that thermal aging favors oxidation phenomenon. Three distinguishable charge relaxations (beta, alpha and rho) have been highlighted by TSDC. (c) 2009 Elsevier B. V. All rights reserved

引用

页码：961 / 970

页数：10

共 21 条

[1] Structural modification of poly(methyl methacrylate) by proton irradiation [J].

Choi, HW ;

Woo, HJ ;

Hong, W ;

Kim, JK ;

Lee, SK ;

Eum, CH .

APPLIED SURFACE SCIENCE, 2001, 169 (169-170) :433-437

[2] Dispersion and absorption in dielectrics I. Alternating current characteristics [J].

Cole, KS ;

Cole, RH .

JOURNAL OF CHEMICAL PHYSICS, 1941, 9 (04) :341-351

[3] Properties of PMMA artificially aged [J].

Colom, X ;

García, T ;

Suñol, JJ ;

Saurina, J ;

Carrasco, F .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2001, 287 (1-3) :308-312

[4] The role of trapped space charges in the electrical aging of insulating materials [J].

Dissado, LA ;

Mazzanti, G ;

Montanari, GC .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1997, 4 (05) :496-506

[5]

GARLICK, 1945, P ROY A, V184, P365

[6] A phenomenological aging model for combined thermal and electrical stress [J].

Gjaerde, AC .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1997, 4 (06) :674-680

[7]

GUERMAZI H, 2001, POLYM 3 MILLENIUM P3, P2

[8] TSDC spectroscopy of relaxational and interfacial phenomena [J].

Gun'ko, V. M. ;

Zarko, V. I. ;

Goncharuk, E. V. ;

Andriyko, L. S. ;

Turov, V. V. ;

Nychiporuk, Y. M. ;

Leboda, R. ;

Skubiszewska-Zieba, J. ;

Gabchak, A. L. ;

Osovskii, V. D. ;

Ptushinskii, Y. G. ;

Yurchenko, G. R. ;

Mishchuk, O. A. ;

Gorbik, P. P. ;

Pissis, P. ;

Blitz, J. P. .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2007, 131 (1-2) :1-89

[9] The kinetics and mechanisms of the thermal degradation of poly(methyl methacrylate) studied by thermal analysis-Fourier transform infrared spectroscopy [J].

Holland, BJ ;

Hay, JN .

POLYMER, 2001, 42 (11) :4825-4835

[10]

KUMAGAI S, 2000, IEEE T D EI, V7

← 1 2 3 →