Polymer Inkjet Printing: Construction of Three-Dimensional Structures at Micro-Scale by Repeated Lamination
- Authors
- Yun, Yeon Hee; Kim, Jae Dong; Lee, Byung Kook; Cho, Yong Woo; Lee, Hee Young
- Issue Date
- Mar-2009
- Publisher
- POLYMER SOC KOREA
- Keywords
- inkjet printing; direct writing; 3D construction; micro-patterning; viscosity; surface tension
- Citation
- MACROMOLECULAR RESEARCH, v.17, no.3, pp.197 - 202
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 17
- Number
- 3
- Start Page
- 197
- End Page
- 202
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/41373
- DOI
- 10.1007/BF03218679
- ISSN
- 1598-5032
- Abstract
- Solution-based, direct-write patterning by an automated, computer-control led, inkjet technique is of particular interest in a wide variety of industrial fields. We report the construction of three-dimensional (313), micropatterned structures by polymer inkjet printing. A piezoelectric, drop-on-demand (DOD) inkjet printing system and a common polymer, PVA (poly(vinyl alcohol)), were explored for 3D construction. After a systematic preliminary study with different solvent systems, a mixture of water and DMSO was chosen as an appropriate solvent for PVA inks. The use of water as a single solvent resulted in frequent PVA clogging when the nozzles were undisturbed. Among the tested polymer ink compositions, the PVA inks in a water/DMSO mixture (4/1 v/v) with concentrations of 3 to 5 g/dL proved to be appropriate for piezoelectric DOD inkjet printing because they were well within the proper viscosity and surface tension range. When a dot was printed, the so-called 'coffee-ring effect' was significant, but its appearance was not prominent in line printing. The optimal polymer inkjet printing process was repeated slice after slice up to 200 times, which produced a well-defined, 3D micro-patterned surface. The overall results implied that piezoelectric DOD polymer inkjet printing could be a powerful, solid-freeform, fabrication technology to create a controlled 3D architecture.
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