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Title: Functionalization of polymer powders for SLS-processes using an atmospheric plasma jet in a fluidized bed reactor

Recently additive manufacturing processes such as selective laser sintering (SLS) of polymers have gained more importance for industrial applications [1]. Tailor-made modification of polymers is essential in order to make these processes more efficient and to cover the industrial demands. The so far used polymer materials show weak performance regarding the mechanical stability of processed parts. To overcome this limitation, a new route to functionalize the surface of commercially available polymer particles (PA12; PE-HD; PP) using an atmospheric plasma jet in combination with a fluidized bed reactor has been investigated. Consequently, an improvement of adhesion and wettability [2] of the polymer surface without restraining the bulk properties of the powder is achieved. The atmospheric plasma jet process can provide reactive species at moderate temperatures which are suitable for polymer material. The functionalization of the polymer powders improves the quality of the devices build in a SLS-process.
Authors:
; ; ; ;  [1]
  1. Institute of Particle Technology, Friedrich-Alexander-University Erlangen-Nuremberg (Germany)
Publication Date:
OSTI Identifier:
22391883
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1664; Journal Issue: 1; Conference: PPS-30: 30. International Conference of the Polymer Processing Society, Cleveland, OH (United States), 6-12 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ADDITIVES; ADHESION; COMPOSITE MATERIALS; FLUIDIZED BED REACTORS; LASER RADIATION; MODIFICATIONS; PARTICLES; PERFORMANCE; PHASE STABILITY; PLASMA JETS; POLYMERS; POWDERS; SINTERING; SURFACES; WETTABILITY