Enhancing Photoelectric Powder Deposition of Polymers by Charge Control Substances

Düsenberg B, Kopp SP, Tischer F, Schrüfer S, Schmidt J, Schmidt M, Schubert DW, Peukert W, Bück A, Roth S (2022)

Publication Language: English

Publication Type: Journal article

Publication year: 2022

Journal

Polymers MDPI

Book Volume: 14

Pages Range: 1332

Issue: 7

DOI: 10.3390/polym14071332

Abstract

Charge control substances (CCS) as additives for polymer powders are investigated to make polymer powders suitable for the electrophotographic powder deposition in powder-based additive manufacturing. The use of CCS unifies the occurring charge of a powder, which is crucial for this novel deposition method. Therefore, commercially available polymer powder is functionalized via dry coating in a shaker mixer with two different CCS and analyzed afterwards. The flowability and the degree of coverage of additives on the surface are used to evaluate the coating process. The thermal properties are analyzed by use of differential scanning calorimetry. Most important, the influence of the CCS on the powder charge is shown by measurements of the electrostatic surface potential at first and the powder deposition itself is performed and analyzed with selected formulations afterwards to show the potential of this method. Finally, tensile strength specimens are produced with the conventional deposition method in order to show the usability of the CCS for current machines.

Authors with CRIS profile

Björn Düsenberg Professur für Partikeltechnik Sebastian-Paul Kopp Lehrstuhl für Photonische Technologien Florentin Tischer Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Stefan Schrüfer Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Jochen Schmidt Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Michael Schmidt Lehrstuhl für Photonische Technologien Dirk Schubert Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Wolfgang Peukert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Andreas Bück Professur für Partikeltechnik

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies Sonderforschungsbereich 814/3 Additive Fertigung Lehrstuhl für Photonische Technologien

Related research project(s)

Modification and structuring of powders by gas phase processes (A2) (SFB 814 (A2)) CRC 814 - Additive Manufacturing (SFB 814) July 1, 2011 - June 30, 2023 Efficient additive manufacturing of multi-material parts (B6) (SFB 814 (B6)) CRC 814 - Additive Manufacturing (SFB 814) July 1, 2011 - June 30, 2023

Involved external institutions

Bayerisches Laserzentrum gemeinnützige Forschungsgesellschaft mbH (BLZ) DE Germany (DE)

How to cite

APA:

Düsenberg, B., Kopp, S.-P., Tischer, F., Schrüfer, S., Schmidt, J., Schmidt, M.,... Roth, S. (2022). Enhancing Photoelectric Powder Deposition of Polymers by Charge Control Substances. Polymers, 14, 1332. https://dx.doi.org/10.3390/polym14071332

MLA:

Düsenberg, Björn, et al. "Enhancing Photoelectric Powder Deposition of Polymers by Charge Control Substances." Polymers 14 (2022): 1332.

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