PFAS-free polymer optical fibres - approaches and barriers to product development

Saal A
Freitag, 15.09.2023, 11:25 - 11:50 Uhr

The presentation will focus on the optical and thermal requirements as well as the technological and economical barriers for the production of PFAS-free light guiding polymer fibres.

Mark Pätzel1, P. Kroeplin2 (RWTH Aachen1, Aachen, Sojitz Europe plc2, Düsseldorf (GER))

At present, polymer optical fibres (POF) consist of a highly transparent core of polymethylmethacrylate in which electro-magnetic waves are guided and a fibre cladding contaminated with per- and polyfluoroalkyl substances (PFAS), which ensures a constant interface between the core and the surrounding medium as well as light conduction via total reflection. In the course of the planned PFAS ban in the EU and the harmful effects of this chemical class on human health, it is necessary to think about approaches but also barriers for the development of PFAS-free POF. For this purpose, the optical, thermal and economic requirements on the cladding polymer and first implementations by means of a bicomponent melt spinning process of a PFAS-free POF are presented.