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Journal of Plastics Technology 2016/04

A novel approach for an in-line atmospheric plasma-treatment of polymers and reinforcements during extrusion

A novel approach for an in-line atmospheric plasma-treatment of polymers and reinforcements during extrusion

A novel approach for an in-line atmospheric plasma-treatment of composites or blends during extrusion processing using a twin screw extruder is reported. The atmospheric plasma-treatment takes place in a partially filled zone of the twin screw extruder. Exemplarily, a glass fibre-reinforced polypropylene (PP) composite and a polypropylene-polyamide 6-blend (PP-PA6-blend) are processed using the in-line atmospheric plasma treatment process. For both systems a slight increase of Young’s modulus and a slight decrease of the elongation at break are observed, while the tensile strength and the notched impact strength of the glass fibre reinforced polypropylene composites are barely affected. The Charpy notched impact strength of the PP-PA6-blend is improved by almost 43 % from 22.5 kJ/m² to 32.1 kJ/m² by applying the in-line atmospheric plasma-treatment process.

Prof. Dr.-Ing. Christian Hopmann; Dr.-Ing. Florian Puch; Dr.-Ing. Henrik Behm; Maximilian Adamy, M.Sc.
Institute of Plastic Processing (IKV), RWTH Aachen University

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The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)


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International Polymer Processing

International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.

The journal covers research and industrial application in the very specific areas of designing polymer products, processes, processing machinery and equipment.


International Polymer Processing


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The Journal of Plastics Technology is indexed in SCOPUS, the largest abstract and citation database of peer-reviewed literature.