Studies of surface and liquid–solid interaction have always been an important branch of science, and its role just increases exponentially due to the expanded application of digital printing. To date, due to the on-demand nature of ink printing, it has become a manufacturing technology for many current and futuristic electronic devices, such as display, printed electronics, and wearable and flexible devices. Research on surface has always been messy, however. Debates and rigorous discussion on the Young’s contact angle, measurement procedures, and data interpretation have been ongoing in the surface literature for many decades. In this chapter, the justification of writing this book is described. The shortfalls in surface science are briefly overviewed. A roadmap that systematically addresses fundamental issues on measurements, basic concepts in wetting and surface characterization, and definitions and terminologies is provided throughout this book. It is our hope that this collection of surface fundamentals will improve readers’ basic understanding of all the key concepts, which will eventually enhance the quality of surface research in the future.


Surface Young’s equation Contact angle Wetting Liquid–solid interaction Young’s angle Contact angle measurement Data interpretation 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Founder & CEO at Research and Innovative SolutionsPenfieldUSA
  2. 2.School of Engineeing, Mechanical and Nuclear EngineeringVirginia Commonwealth UniversityRichmondUSA

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