Characterization of the auto-curing behavior of rapid prototyping materials for three-dimensional printing using dielectric analysis
Three‐dimensional printing technology applies the high efficiency of the ink jet printer technology to manufacture functional prototypes. To optimize the printing process of PMMA powder containing an initiator and a liquid binder consisting of polymerizable monomers with activator molecules, the kno...
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Published in | Polymer engineering and science Vol. 55; no. 7; pp. 1485 - 1493 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Newtown
Blackwell Publishing Ltd
01.07.2015
Society of Plastics Engineers, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Three‐dimensional printing technology applies the high efficiency of the ink jet printer technology to manufacture functional prototypes. To optimize the printing process of PMMA powder containing an initiator and a liquid binder consisting of polymerizable monomers with activator molecules, the knowledge of the curing kinetics is required. Therefore, a methodology was developed to apply dielectric analysis measuring changes of the ion and dipole mobility in terms of a quantity called ion viscosity. Connecting time‐dependent changes of ion viscosity and reaction heat determined by DSC leads to detailed insight into the curing process. The results show that the styrene concentration of the binder determines the curing kinetics—reduces thermal stresses and provides time for stress relaxation. The curing process differs significantly with respect not only to composition of the binder, but also to its aging state. The proposed approach can be implemented directly to a printer to detect dielectric changes of the materials during the manufacturing process. POLYM. ENG. SCI., 55:1485–1493, 2015. © 2015 Society of Plastics Engineers |
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Bibliography: | istex:C25288F98B9E8837B4304AE544D6E0AC9FF77A4D ark:/67375/WNG-NN8TL7M4-T Netzsch Gerätebau GmbH and Operational Program Research and Development for Innovations (European Regional Development Fund [ERDF] and national budget of Czech Republic ArticleID:PEN24100 Centre of Polymer Systems - No. CZ.1.05/2.1.00/03.0111; B.H. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0032-3888 1548-2634 |
DOI: | 10.1002/pen.24100 |