Effect of gamma radiation on dielectric and mechanical properties of modified fluoroplastic PTFE
Abstract
The influence of gamma radiation on dielectric and mechanical characteristics of modified fluoroplast PTFE-4 MBK is considered in this paper. The material was exposed to Gamma-ray source GU-200 (Joint-stock company «Research Institute of Instruments», Lytkarino, Russia). The results of the research have shown that the relative permittivity and the tangent of the dielectric loss angle of PTFE-4 MBK samples at doses 4.105-1.106 Gy monotonically increase by 2.9 and 9.4%, respectively, compared to un-exposed material. The research of the mechanical properties of PTFE-4 MBK showed a maximum stress of up to 13.8 MPa and a maximum strain of 252% at doses of 8.104 Gy. It has been demonstrated that modified PTFE-4 MBK has good dielectric characteristics and withstanding high mechanical stress. We propose to use the results of the research for choosing cables and wiring location used in nuclear and space industry.
- Publication:
-
IV International Conference for Young Scientists, Post-Graduate Students and Students: Isotopes: Technologies, Materials and Application (ITMA-2017)
- Pub Date:
- March 2018
- DOI:
- 10.1063/1.5027210
- Bibcode:
- 2018AIPC.1938b0003R