caa a22 4500 463230191 CHVBK 20180405153239.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1217-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-1217-y Influence of coloration on initial material properties and on thermooxidative ageing of a polyoxymethylene copolymer [Elektronische Daten] [S. Lüftl, V. Archodoulaki, M. Glantschnig, S. Seidler] Polyoxymethylene (POM) is a semicrystalline thermoplast of white natural colour. To meet the demands in other colours the material has to be coloured. Thus, the aim of the present study was to elaborate the influence of coloration both on the initial material properties and on the thermooxidative degradation behaviour of a POM-copolymer (POM-C). POM material with two different stabilising systems was used. A master batch on a POM substrate was added in a mass fraction of 3% to commercial distributed POM material to obtain the desired coloration. The tested specimens were injection moulded loudspeaker grills. Material properties were investigated on non-coloured and coloured samples before and after artificial ageing. The tests carried out were colour measurement, MVR (melt volume rate), mechanical testing (perforation resistance), DSC (differential scanning calorimetry) and TGA/MS (thermogravimetric analysis coupled with mass-spectrometry). Artificial ageing was realised by means of an oven storage at 140°C for a duration up to 8weeks to investigate the thermooxidative induced changes in the degradation behaviour. Test results showed first that the addition of a colorant had an influence on the initial properties and second that the degradation behaviour of the aged specimens depended not only on the presence of the colorant but also on the stabilising system of the material. Springer Science+Business Media, LLC, 2006 Lüftl S. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut Archodoulaki V. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut Glantschnig M. SFS Intec Ges.m.b.H., Wiener Strasse 29, 2100, Korneuburg, Austria aut Seidler S. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1351-1359 0022-2461 42:4<1351 2007 42 10853 https://doi.org/10.1007/s10853-006-1217-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1217-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lüftl S. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut NATIONALLICENCE 700 1- Archodoulaki V. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut NATIONALLICENCE 700 1- Glantschnig M. SFS Intec Ges.m.b.H., Wiener Strasse 29, 2100, Korneuburg, Austria aut NATIONALLICENCE 700 1- Seidler S. Institute of Materials Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040, Vienna, Austria aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1351-1359 0022-2461 42:4<1351 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer