We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Study on electron beam cross‐linked ethylene‐tetrafluoroethylene copolymer‐insulated cables for aerospace applications: Mechanical performance, crystallization kinetics, and fluoride precipitation.
- Authors
Min, Jun; Tao, Zhaozeng; Song, Xupeng; Zhang, Jin; Wang, Zenghui; Ji, Yanlei; Zhai, Guofu; Ye, Xuerong
- Abstract
The cross‐linking effects of cross‐linked ethylene‐tetrafluoroethylene copolymer (XETFE)‐insulated cables at different electron beam radiation doses were analyzed in this paper. Evaluation of the mechanical performance of the cables revealed that the highest tensile and breaking elongation was achieved at a radiation dose of 8 × 104 Gy and that XETFE had a good resistance to extreme electron beam irradiation. This is attributed to the cross‐linking effects induced by electron beam irradiation, and this takes full advantage of the strength of molecular chain crosslink to each other. The crystallization kinetics of XETFE at different electron beam radiation doses were studied in detail in terms of the non‐isothermal and isothermal crystallization processes. The results indicated that the crystallinity of the XETFE domain increased with an increase in the radiation dose as a result of heterogeneous nucleation. Moreover, the highest ΔEa was obtained, indicating that XETFE absorbed some energy at a radiation dose of 8 × 104 Gy. These kinetic parameters had help in carrying out a comprehensive evaluation of the performance of XETFE‐insulated cables for aerospace applications. Moreover, the fluoride precipitation observed in this study indicated that upon electron beam irradiation, XETFE could internally produce hydrogen fluoride, which is corrosive to metals. Thus, optimizing the radiation dose was necessary to achieve the desired performance. We could believe that the improvement for properties of electron beam XETFE insulation cables would expand their range of applications in the aerospace field.
- Subjects
PARTICLE scattering functions; POLYMERIZATION; CRYSTALLIZATION; ELECTRON beams; ULTRAVIOLET radiation
- Publication
Polymers for Advanced Technologies, 2018, Vol 29, Issue 5, p1497
- ISSN
1042-7147
- Publication type
Article
- DOI
10.1002/pat.4261