By iSmithers
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High Performance Polymers, Johannes K. Fink, William Andrews Inc. (pub), Norwich NY (2008) 7 Update on the Technology and Applications of Polyaryletherketones, David Kemmish, iSmithers (pub), Shropshire UK (2010) 6 Page 5 of 10 pages Paper 4 23-24 February 2011-Cologne, Germany High Performance Plastics 2011 viscosities being offered. This company offers the variants PEK, PEEK and recently PEKKEK in their portfolio. In recent years, alternative commercial suppliers for PAEK resins have appeared, utilizing polymerization technologies which avoid patent infringement issues with competing technologies.
Figure 5 Sequence of steps from conversion of monomer to polymer all the way to end use article fabrication. Each of these steps contributes to the final property balance of the part in the finished article to varying degrees. In semi-crystalline materials such as the PAEK’s we are referring to here, this is especially true since the mechanical properties are strongly impacted by the crystallinity established in the material, both from a bulk crystallinity level and the size and distribution of crystallites within the polymer matrix.
Folienextrusion film extrusion Verstreckung drawing Î Î Gewebe fabric Aufspulen winding Schneiden / cutting Gewebeabwicklung roll up units Heiß Kompaktieren Hot Compaction Abstapeln stacking Slide 10 Hot Compaction Technology Composite is formed consisting of the original, highly oriented material held in place by a melted phase Assembly of fibres, tapes or films Selective melting of each individual fibre/tape Paper 6 Page 6 of 20 pages High Performance Plastics 2011 23-24 February, 2011 – Cologne, Germany Slide 11 Hot Compaction Technology Melted, recristallized surface layer weft tapes Fabric SEM section warp tapes highly oriented tapes matrix Slide 12 Die Hot Compaction Technologie 32 unwinding stations Page 7 of 20 pages Paper 6 23-24 February 2011-Cologne, Germany High Performance Plastics 2011 Slide 13 Tailored Curv World-class hot compaction technology allows usage of very wide range of reinforcement fibres, fabrics or films… …these materials can be successfully embedded in a thermo-plastic matrix, not necessarily always PP !