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http://dx.doi.org/10.9713/kcer.2022.60.2.308

Experimental Study on Surface Impact Behavior Changes of Photocurable Hydrogel Droplets According to Exposure Conditions  

Lee, Sanghyun (Test & System Package, Samsung Electronics)
Kang, Dong Kwan (Division of Mechanical, Automotive, Robot Component Engineering, Dong-Eui University)
Lee, Sangmin (Division of Mechanical, Automotive, Robot Component Engineering, Dong-Eui University)
Publication Information
Korean Chemical Engineering Research / v.60, no.2, 2022 , pp. 308-312 More about this Journal
Abstract
3D printing technology, which creates a physical object by various material deposition, has been widely used in recent years in the manufacturing field because of its advantages. Among the various printing technologies, droplet-based 3D printing technology (e.g., Polyjet®) enables a high-resolution printing using photocurable materials such as hydrogels. Depending on the degree of light exposure, ejected photocurable droplets may have different properties (e.g., viscosity) until they collide with the substrate and it leads to the different spreading behaviors of the droplets (i.e., impact, spreading, and recoiling) during deposition on the substrate. In this study, experimental observation and analysis of the changes in hydrogel droplet viscosity and spreading behavior according to the light exposure were carried out based on high-speed image processing.
Keywords
Photocurable hydrogel; 3D printing; Drop-on-demand; Viscosity; Spreading behavior;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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