Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 57, Issue 3-6, Pages 543-547Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0969-806X(99)00423-5
Keywords
multi-layer tubes; crosslinking; electron beam; water supply; thermooxidative stability
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Irradiation crosslinking of PE-tubes has been used for heating floors for about 25 years. Such tubes are also used today for drinking water supply. A further development has been the coating of such tubes with Ethylene-Vinyl-Alcohol-Copolymers (EVAL), in order to prevent oxygen diffusion into the water through the PE tube. For about 15 years composite tubes made of PE and aluminum have been available. These tubes are crosslinked with electron beams. The energy of the accelerated electrons must be adjusted for the particular tube configuration, so that the inner PE-layer will be crosslinked. This paper will concern itself with the manufacture and the crosslinking of composite tubes. (C) 2000 Elsevier Science Ltd. All rights reserved.
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