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Issue 29, 2009
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Reactive inkjet printing of polyurethanes

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Abstract

Reactive inkjet printing technology was used to create micron-scale polyurethane structures, such as dots, lines and pyramids. These structures were fabricated insitu and cured within five minutes by inkjet printing two separate inks successively from two separate print heads, with one ink containing isophorone diisocyanate, and the other consisting of an oligomer of poly(propylene glycol), a catalyst, and a cross-linking agent. The fast polymerization reaction that forms polyurethane at the surface opens a new route for rapid prototyping, as well as the use of inkjet printing as a technique for handling moisture-sensitive reactions. By the addition of fluorescent dyes to the polyol ink, confocal laser scanning fluorescence microscopy was used to investigate the miscibility behavior of both solutions on the substrate.

Graphical abstract: Reactive inkjet printing of polyurethanes

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Article information


Submitted
06 Jan 2009
Accepted
11 May 2009
First published
12 Jun 2009

J. Mater. Chem., 2009,19, 5234-5238
Article type
Paper

Reactive inkjet printing of polyurethanes

P. Kröber, J. T. Delaney, J. Perelaer and U. S. Schubert, J. Mater. Chem., 2009, 19, 5234 DOI: 10.1039/B823135D

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