Effect of dose rate and oxygen on radiation crosslinking of silica filled fluorosilicone rubber

被引：21

作者：

Aliev, R ^{[1
]}

机构：

[1] Natl Autonomous Univ Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

来源：

RADIATION PHYSICS AND CHEMISTRY | 1999年 / 56卷 / 03期

关键词：

D O I：

10.1016/S0969-806X(99)00267-4

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：

Fluorosilicone (polymethyltrifluoropropylsiloxane) rubber containing silica filler was irradiated with gamma-rays and accelerated electrons in air, argon and vacuum. Doses up to 0.5 MGy and dose rates of 1.4 and 10(3) Gy/s were used. The absorbed dose distribution across the rubber thickness during electron irradiation was determined. Oxidation, swelling in ethyl acetate and mechanical properties of this rubber depended on the conditions of irradiation that testified to different effectiveness of the rubber radiation crosslinking under these conditions. Effects of dose rate, diffusion of oxygen into rubber during irradiation, local heating and the oxygen desorption from the filler particles during the electron irradiation are considered for explanation of these differences. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：347 / 352

页数：6

共 16 条

[1] ACCELERATOR REQUIREMENTS FOR ELECTRON-BEAM PROCESSING [J].

BECKER, RC ;

BLY, JH ;

CLELAND, MR ;

FARRELL, JP .

RADIATION PHYSICS AND CHEMISTRY, 1979, 14 (3-6) :353-375

[2]

BOHM GGA, 1982, RUBBER CHEM TECHNOL, V55, P575

[3]

CHARLESBY A, 1987, RAD CHEM PRINCIPLES, P461

[4]

FENNER OH, 1975, HDB PLASTICS ELASTOM, P4

[5]

KROSCHWITZ J, 1989, ENCY POLYM SCI TECHN, V15, P287

[6]

KUZMINSKII AS, 1973, RAD KHIMIYA POLIMERO, P306

[7] RADIATION CROSS-LINKING OF FLUOROPOLYMERS - A REVIEW [J].

LYONS, BJ .

RADIATION PHYSICS AND CHEMISTRY, 1995, 45 (02) :159-174

[8]

MAKHLIS FA, 1975, RAD PHYSICS CHEM POL, P240

[9]

Miller A.A., 1973, RAD CHEM MACROMOLECU, VII, P179

[10]

PLATE NA, 1990, POLYM SCI USSR, V32, P1053

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