K. Song, S. Jambhulkar, W. Xu
Arizona State University Polytechnic,
Keywords: 3D printing, polymer, nanoparticles, nanofibers, composites, sensors
Summary:3D printing, alternatively termed as additive manufacturing, is a layer-by-layer technique to deposit materials and form 3D structures. Another layer-by-layer manufacturing technique is called dip-coating, which counts on the interlayer adhesion or repulsion to form thin layers upon the previous substrate surface. This report will combine both techniques to form alternative layers between polymers and nanoparticles. More importantly, the surface morphology and roughness of the 3D printed layer can determine the adhesion of nanoparticles to specific locations, leading to aligned lines or bands with different dimensions. The oriented particles were forming different thicknesses that determined varied sensitivity and selectivity to chemical liquids and gases. The hybrid manufacturing developed in this project demonstrated the use of rapid prototyping in fabricating sensors with varied functionalities.