Description:
A single-step method for uniform material coating on a localized surface
Princeton Docket # 15-3120-1
Researchers at Princeton in The Department of Mechanical and Aerospace Engineering have designed a model liquid with a binary solvent mixture, a surfactant, and a polymer additive to obtain a uniform material coating on a substrate.
This invention is based on the modification of the surface properties of a solid substrate and liquid surface to enhance the homogeneity of materials deposition. It can be easily applied to printing and coating technologies by adding a small amount of polymer and surfactant into the coating solution. The added polymer is adsorbed on top of the substrate and the adsorbed polymer structure sticks materials on its surface. Simultaneously, the added surfactant is adsorbed on the liquid surface and the surfactant prevents the non-uniform material deposition. The uniqueness of this method is that it does not require coating the entire substrate area during the printing and coating process.
This single-step method is versatile and easy to implement and represents a promising way to uniformly coat materials on a localized surface.
Applications
• Ink-jet printing
• 3D printing
• General coating technologies
Advantages
• Easy to implement
• Does not require coating the entire substrate area
• Cost -effective
• Useful for a variety of coating processes
Publications
Kim H; Boulogne F; Um E; Jacobi I; Button E; Stone HA. Controlled Uniform Coating from the Interplay of Marangoni Flows and Surface-Adsorbed Macromolecules. Physical Review Letters 116, 124501 (2016)
Chang K. At the Bottom of a Whisky Glass, a Beautiful Experiment. The New York Times, USA (2016)
B. Verberck. Fluid dynamics: Spirited away. Nature Physics 12, 291 (2016)
B. Yirka. Evaporated whisky inspires new type of coating technique. Phys.org (2016)
J. Kemsley. Why whiskey doesn’t put a ring on it. Chemical & Engineering News (2016)
M. Schirber. Synopsis: Whisky-Inspired Coatings. Physics (2016)
J. Ouellette. The Science of Using a Damn Coaster When You Are a Guest in This House. GIZMODO (2016)
K. Chang. Art in a whisky glass, neatly explained. The New York Times (2014)
Inventors
Howard A. Stone, Donald R. Dixon and Elizabeth W. Dixon Professor in Mechanical and Aerospace Engineering and Department Chair
Howard Stone is the Donald R. Dixon '69 and Elizabeth W. Dixon Professor in Mechanical and Aerospace Engineering at Princeton University. His research has been concerned with a variety of fundamental problems in fluid motions dominated by viscosity, so-called low Reynolds number flows, and has frequently featured a combination of theory, computer simulation and modeling, and experiments to provide a quantitative understanding of the flow phenomenon under investigation. Prof. Stone is the recipient of the most prestigious fluid mechanics prize, the Batchelor Prize 2008, for the best research in fluid mechanics in the last ten years. He is also a Fellow of the American Academy of Arts and Sciences and is a member of the National Academy of Engineering and the National Academy of Sciences.
François Boulogne, Ph.D, received his undergraduate and master's degrees in Physics from Université Paris-Saclay (France). He graduated in 2013 with a Ph.D. in Physics in Université Pierre et Marie Curie in Paris (France). In 2013, he joined the Complex Fluid group of Prof. Howard Stone at Princeton University as a Postdoctoral Research Associate. François obtained in June 2014 an individual Marie Curie Fellowship to pursue his research in Princeton and in the group of Prof. Laurent Limat at Laboratoire Matière et Systèmes Complexes in Université Paris-Diderot. Now, he is a CNRS research assistant at Laboratoire de Physique des Solides in Orsay (France). His research is located at the interface between hydrodynamics with flow of complex fluids such as foams or polymer solutions, physical-chemistry of colloidal suspensions as well as continuum mechanics of consolidating materials.
Hyoungsoo Kim is an associate research scholar in the Department of Mechanical and Aerospace Engineering at the Princeton University under the supervision of prof. Howard A. Stone. He obtained his Ph.D. degree in Mechanical Engineering from the Delft University of Technology, Netherlands. He is dedicated to perform flow visualization techniques to investigate the fundamental hydrodynamic instabilities and drying and mixing of complex fluids. He is currently a member of the American Physical Society.
Intellectual Property & Development status
Patent protection is pending.
Princeton is currently seeking commercial partners for the further development and commercialization of this opportunity.
Contact
Michael R. Tyerech
Princeton University Office of Technology Licensing • (609) 258-6762• tyerech@princeton.edu
Sangeeta Bafna
Princeton University Office of Technology Licensing • (609) 258-5579• sbafna@princeton.edu