Improvement of radiation resistance for polytetrafluoroethylene (PTFE) by radiation crosslinking

被引：104

作者：

Oshima, A ^{[1
]}

Ikeda, S ^{[1
]}

Seguchi, T ^{[1
]}

Tabata, Y ^{[1
]}

机构：

[1] JAPAN ATOM ENERGY RES INST,TAKASAKI RADIAT CHEM RES ESTAB,TAKASAKI,GUMMA 37012,JAPAN

来源：

RADIATION PHYSICS AND CHEMISTRY | 1997年 / 49卷 / 02期

关键词：

D O I：

10.1016/S0969-806X(96)00138-7

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：

Crosslinked polytetrafluoroethylene(PTFE) was prepared by electron beam irradiation in the molten state of PTFE at 340 +/- 3 degrees C in inert gas atmosphere. The crosslinking density was changed by the irradiation dose. Radiation resistance of the crosslinked PTFE was examined on the mechanical properties after gamma-ray irradiation at room temperature under vacuum and in air. Dose at a half value of elongation at break was about 1 MGy for 500 kGy-crosslinked PTFE, while dose for non-crosslinked PTFE was only 3.5 kGy. It has been found that the radiation resistance of PTFE can be improved to large extent by crosslinking. Copyright (C) 1997 Elsevier Science Ltd

引用

页码：279 / 284

页数：6

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