Dip Coating Assisted Polylactic Acid Deposition on Steel Surface: Film Thickness Affected by Drag Force and Gravity

P. L. Lin, T. L. Su, H. W. Fang, J. S. Chang, W. C. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dip coating process has the potential of providing an easier and economical way to form a polylactic acid (PLA) layer on metal surface for various applications. The effects of dip coating operating parameters such as the withdrawal velocity, concentration, and viscosity of the solution on the film thickness were investigated in this study. Our experimental results show that the increase of withdrawal velocity leads to the increase of PLA film thickness at the relatively low withdrawal velocity regime. However, at the relatively high withdrawal velocity regime of the dip coating process, it was observed that the PLA layer thickness starts to decrease with increasing withdrawal velocity. It is suggested that the competition of drag force and gravity during the dip-coating process dominates PLA film formation. A mechanism was proposed to explain this special behavior which was never observed in the dip coating process.

Original languageEnglish
Title of host publication13th International Conference on Biomedical Engineering, ICBME 2008
Pages1341-1343
Number of pages3
DOIs
Publication statusPublished - Dec 1 2009
Externally publishedYes
Event13th International Conference on Biomedical Engineering, ICBME 2008 - , Singapore
Duration: Dec 3 2008Dec 6 2008

Publication series

NameIFMBE Proceedings
PublisherSpringer Verlag
ISSN (Print)1680-0737

Other

Other13th International Conference on Biomedical Engineering, ICBME 2008
CountrySingapore
Period12/3/0812/6/08

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Keywords

  • Coatings
  • Deposition
  • Dip coating
  • Film thickness
  • Polylactic acid
  • Polymers

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering

Cite this

Lin, P. L., Su, T. L., Fang, H. W., Chang, J. S., & Chang, W. C. (2009). Dip Coating Assisted Polylactic Acid Deposition on Steel Surface: Film Thickness Affected by Drag Force and Gravity. In 13th International Conference on Biomedical Engineering, ICBME 2008 (pp. 1341-1343). (IFMBE Proceedings). https://doi.org/10.1007/978-3-540-92841-6_330