Email this article Uniformity of electron beam cross-linking of polyethylene depending on the distribution of the absorbed radiation dose
- Authors: Popova A.V.1, Artamonova K.A.1, Bludenko A.V.1, Kholodkova E.M.1, Vlasov S.I.1, Ponomarev A.V.1
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Affiliations:
- Frumkin Institute of Physical Chemistry and Electrochemistry RAS
- Issue: Vol 59, No 4 (2025)
- Pages: 229–234
- Section: RADIATION CHEMISTRY
- URL: https://manmiljournal.ru/0023-1193/article/view/687705
- DOI: https://doi.org/10.31857/S0023119325040061
- EDN: https://elibrary.ru/ayadnq
- ID: 687705
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Abstract
The crosslinking of polyethylene of pipe grades via 900 keV electrons at an absorbed dose of 50 to 400 kGy in the presence of antioxidants and a crosslinking agent was studied. The degree of crosslinking of polyethylene was measured by the content of the gel fraction, determined by its extraction in xylene. It was shown that in all cases the 60% degree of cross-linking is achieved at a dose of about 100 kGy. It is advisable to combine the standard method for determining the gel fraction with visual inspection of samples to identify the conditions for the formation of an excessively low-melting material. It has been shown that ±7% crosslinking degree non-uniformity can be achieved with dose non-uniformity of up to ±50%.
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About the authors
A. V. Popova
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
K. A. Artamonova
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
A. V. Bludenko
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
E. M. Kholodkova
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
S. I. Vlasov
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
A. V. Ponomarev
Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Author for correspondence.
Email: ponomarev@ipc.rssi.ru
Russian Federation, Moscow
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