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Proceedings Paper

Tailoring the optical and rheological properties of an epoxy acrylate based host-guest system
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Paper Abstract

Polymers with individually adjusted optical and rheological properties are gaining more and more importance in industrial applications like in information technology. To modify the refractive index n, an electron-rich organic dopant is added to a commercially available polymer based resin. Changes in viscosity for applications like ink-jet printing can be achieved by using a comonomer with suitable properties. Therefore we used a commercially available epoxy acrylate based UV-curable polymer matrix to investigate the influence of ethylene glycol dimethacrylate (EGDMA) on viscosity and phenanthrene on refractive index. Refractive index was measured at a wavelength of 589 nm and 20 °C using an Abbe refractometer. As a result the change in viscosity decreased linearly from 47 Pa·s to 4 mPa·s which is a more suitable region for inkjet printing. However, the refractive index decreased at the same time from 1.548 to 1.514. Adding phenanthrene the refractive index increased linearly from 1.548 up to 1.561. It was shown that both, viscosity and refractive index can be successfully adjusted in a wide range depending on desired properties.

Paper Details

Date Published: 2 May 2014
PDF: 8 pages
Proc. SPIE 9130, Micro-Optics 2014, 913016 (2 May 2014); doi: 10.1117/12.2051328
Show Author Affiliations
Uwe Gleißner, Univ. Freiburg (Germany)
Thomas Hanemann, Univ. Freiburg (Germany)
Karlsruher Institut für Technologie (Germany)


Published in SPIE Proceedings Vol. 9130:
Micro-Optics 2014
Hugo Thienpont; Jürgen Mohr; Hans Zappe; Hirochika Nakajima, Editor(s)

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