Slag fiber
| Slag fiber | |
|---|---|
| Fiber type |
Chemical fiber made from natural polymers of inorganic origin; artificial mineral fiber |
| colour |
mostly white to gray |
| properties | |
| Fiber length | 6 to 50 mm |
| Fiber diameter | 0.3 to 15.6 µm; Average value: 3.5 to 4.9 µm |
| density | 2.30 to 2.75 g ∙ cm −3 |
| Maximum tensile stress | 530 to 900 N ∙ mm −2 |
| Fineness-related maximum tensile strength | 0.21 to 0.35 N ∙ tex −1 |
| Products | Slag wool, insulation material |
Slag fiber (less often slag fiber ) is an artificial mineral fiber , which is made from metallurgical slag ( blast furnace slag ) by blown or centrifugal processes in the form of slag wool (also known as cottage wool ), i.e. H. Disordered, loosely connected fiber collectives of the slag fiber, is deposited in deposition chambers or directly on deposit belts as a fleece . The fleece can be consolidated by adding binders. The slag wool is used in various forms for insulation of all kinds, especially as an insulation material , the use of which also requires high temperature resistance .
Slag wool was the first type of mineral wool to be produced on a large scale as early as the 19th century. The first commercial production took place in 1871 in the steelworks of the Georgs-Marien-Bergwerks- und Hüttenverein in Georgsmarienhütte . Due to the heavy metals it contains and the suspected cancerous fiber dust , slag wool is only rarely used for thermal insulation today. However, it is still used for the connection seal.
literature
- Eva Poeschel, Alfons Köhling: Asbestos Substitute Catalog, Vol. 4, Federal Environment Agency, Frankfurt am Main 1985. [1]
Individual evidence
- ↑ Wolfgang Bobeth , Wolfgang Böhme, Jürgen Techel (eds.): Inorganic textile fibers . Verlag Technik, Berlin 1955, p. 237
- ↑ a b Author collective: Textile fibers . Second improved edition. Fachbuchverlag, Leipzig 1967, p. 652
- ↑ a b c d Wolfgang Bobeth (Ed.): Textile Faserstoffe. Texture and properties . Springer-Verlag, Berlin / Heidelberg / New York 1993, ISBN 3-540-55697-4 , p. 170
- ↑ Wolfgang Bobeth, Wolfgang Böhme, Jürgen Techel (eds.): Inorganic textile fibers . Verlag Technik, Berlin 1955, p. 82
- ↑ on the term wool or flock as a fiber collective see: Günter Schnegelsberg: Handbuch der fiber - theory and systematics of fiber. Deutscher Fachverlag, Frankfurt am Main 1999, ISBN 3-87150-624-9 , pp. 71f
- ↑ Otto Graf (Ed.): The examination of non-metallic building materials . 2nd Edition. Springer-Verlag, Berlin / Göttingen / Heidelberg 1957, p. 513
- ^ Swapna Mukherjee: Applied Mineralogy: Applications in Industry and Environment. Springer, Dordrecht (Netherlands) 2012, ISBN 978-94-007-1161-7
- ^ Building "Science" timeline
- ↑ Slag wool on construction network knowledge
- ↑ Archived copy ( Memento of the original dated February 5, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , P. 22
