Towards the Reuse of Fire Retarded Polyamide 12 for Laser Sintering.

ABSTRACT: The control of powder aging during Selective Laser Sintering (SLS) processing is one of the challenges to be overcome for the implementation of this technique in serial production. Aging phenomena, because of the elevated temperatures and long processing times, need to be considered when a fraction of the polymer powders present in the build chamber and not used to manufacture the parts are reused at various times. The aim of this study was to investigate the influence of successive reuse of blends of pure Polyamide 12 and its blends with two types of flame retardants (FR): ammonium polyphosphate (APP) and zinc borate (ZB). The composition of the blends was 70/30 (wt/wt) PA 12/FR. Four successive processing stages have been carried out by collecting the remaining powder blend each time. Th

SUBMITTER: Seigler D 

PROVIDER: S-EPMC11356142 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature