Study Finds that Orientation Influences Electrochemical Behavior in 3D Printed sensors https://ift.tt/2LKULnJ 3D printing sensors is an area that is seeing a lot of emerging research. We all know that print orientation can really affect the quality of your prints. Sensors experience this as well with print orientation having been found to have effects on electrochemical behavior. The paper, entitled “The effects of printing on the electrochemical behaviour of 3D printed acrylonitrile butadiane styrine (ABS)/carbon black electrodes,” can be found here. The researchers 3D printed a variety of electrodes using both horizontal and vertical printing direction. The horizontal printing direction resulted in a smooth surface for an HPSS (horizontally printed smooth surface) electrode and a relatively rougher surface for an HPRS (horizontally printed rough surface) electrode. The vertically printed electrode showed enhanced current response when compared to the two horizontally printed electrodes, showing that print orientation is in fact a factor in the level of conductivity that a 3D printed object has.
According to the paper, it’s a challenge to develop electrochemical sensors with complex geometry.
Composite electrodes are easy to make in any geometry using 3D printing, and have mechanically robust properies, but their performances vary depending on the differences in the homogeneity of the material and electrode surface from batch to batch. They also have increased resistance compared to solid conductive materials, presenting another challenge to the manufacture of composite electrodes. 3D printing has presented a viable way of fabricating complex electrodes, thanks to the availability of 3D printers and the variety of conductive filaments on the market. Several studies have used 3D printing for sensing, and carbon and metallic materials have been used for 3D printing the electrodes.
This study specifically was undertaken in order to explore the behavior for ABS/carbon objects that were 3D printed in a horizontal or vertical direction, and found that print orientation does in fact affect how conductive an object will be.
Authors of the paper include Hairul Hisham Bin Hamzah, Oliver Keattch, Derek Covill and Bhavik Anil Patel. Discuss this and other 3D printing topics at 3DPrintBoard.com or share your thoughts below.
Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com July 30, 2018 at 09:39AM
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