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Authors
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Lehmann, D. ; Hupfer, B. ; Lappan, U. ; Geißler, U. ; Reinhardt, G. ; Kunze, K.
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Title
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Verwertung von PTFE-Glasfaser-Compound-Abfällen - Ergebnisse einer Wertstoffentwicklung
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Date
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31.12.2004
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Number
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12125
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Abstract
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Glass fibre reinforced PTFE compounds (PTFE/GF) are manufactured as semi-finished products and processed by machining to appropriate products. In contrast to non-modified PTFE waste the PTFE/GF waste of machining is not recyclable and is disposed. This contribution is dealing with a process of PTFE/GF recycling, and first results are presented, in which PTFE/GF waste is processed to useful material. The first step is a decomposition of PTFE in PTFE/GF waste by irradiation to produce powders with glass fibre content. In a subsequent compounding with PA-6 chemically bonded PTFE-PA-6 materials (with glass content) are formed. In tribological tests these compounds show nearly the same behaviour like products manufactured with pure PTFE. The chemically bonded PTFE-PA materials show a very good friction behaviour. A special feature is the excellent wear resistance of such materials compared to physical mixtures.
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Publisher
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Materialwissenschaft u. Werkstofftechnik
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Wikidata
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Citation
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Materialwissenschaft u. Werkstofftechnik 35 (2004) 677-682
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DOI
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https://doi.org/10.1002/mawe.200400785
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