Next Article in Journal
Ball Milling to Produce Composites Based of Natural Clinoptilolite as a Carrier of Salicylate in Bio-Based PA11
Previous Article in Journal
LED-Cured Reflection Gratings Stored in an Acrylate-Based Photopolymer
Open AccessArticle

Influence of Al2O3 Nanoparticle Addition on a UV Cured Polyacrylate for 3D Inkjet Printing

1
Institute for Applied Materials, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
2
Laboratory for Materials Processing, University of Freiburg, 79110 Freiburg, Germany
3
TECNAN, Tecnología Navarra de Nanoproductos S.L, Industrial Area Perguita, C/A No. 1, 31210 Los Arcos, Spain
4
Institute of Microstructure Technology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
5
Laboratory for Nanotechnology, University of Freiburg, 79110 Freiburg, Germany
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(4), 633; https://doi.org/10.3390/polym11040633
Received: 12 February 2019 / Revised: 29 March 2019 / Accepted: 4 April 2019 / Published: 6 April 2019
The brittleness of acrylic photopolymers, frequently used in 3D Inkjet printing, limits their utilization in structural applications. In this study, a process was developed for the production and characterization of an alumina-enhanced nanocomposite with improved mechanical properties for Inkjet printing. Ceramic nanoparticles with an average primary particle size (APPS) of 16 nm and 31 nm, which was assessed via high-resolution scanning electron microscopy (HRSEM), were functionalized with 3.43 and 5.59 mg/m2 3-(trimethoxysilyl)propyl methacrylate (MPS), respectively, while being ground in a ball mill. The suspensions of the modified fillers in a newly formulated acrylic mixture showed viscosities of 14 and 7 mPa∙s at the printing temperature of 60 °C. Ink-jetting tests were conducted successfully without clogging the printing nozzles. Tensile tests of casted specimens showed an improvement of the tensile strength and elongation at break in composites filled with 31 nm by 10.7% and 74.9%, respectively, relative to the unfilled polymer. View Full-Text
Keywords: nanocomposites; nanoparticles; 3D Inkjet printing; ceramic inks nanocomposites; nanoparticles; 3D Inkjet printing; ceramic inks
Show Figures

Graphical abstract

MDPI and ACS Style

Graf, D.; Burchard, S.; Crespo, J.; Megnin, C.; Gutsch, S.; Zacharias, M.; Hanemann, T. Influence of Al2O3 Nanoparticle Addition on a UV Cured Polyacrylate for 3D Inkjet Printing. Polymers 2019, 11, 633.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop