Hesse N, Peukert W, Schmidt J (2020)
Publication Language: English
Publication Type: Journal article
Publication year: 2020
Book Volume: 94
Pages Range: 105-109
DOI: 10.1016/j.procir.2020.09.021
This contribution introduces a method to reverse the deterioration in melt rheological behaviour (‘ageing’) of polyamide 12 that has previously been used in powder bed fusion processing by reduction of the polymers molecular weight via acid catalysed hydrolysis. Chosen hydrolysis conditions allow for a reconditioning below melting temperature and therefore leave the particulate nature of the powder intact while significantly improving the polymers rheological properties. The influences of different temperatures, acids and pH-values are investigated and the processability of recycled powders is assessed by melt rheological, optical and thermal characteristics.
APA:
Hesse, N., Peukert, W., & Schmidt, J. (2020). Enhancement of polyamide laser sinter powder reusability by acid catalyzed hydrolysis. Procedia CIRP, 94, 105-109. https://doi.org/10.1016/j.procir.2020.09.021
MLA:
Hesse, Nicolas, Wolfgang Peukert, and Jochen Schmidt. "Enhancement of polyamide laser sinter powder reusability by acid catalyzed hydrolysis." Procedia CIRP 94 (2020): 105-109.
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