AC electrophoretic deposition of organic-inorganic composite coatings

Yoshioka T, Chavez-Valdez A, Roether J, Schubert DW, Boccaccini AR (2013)

Publication Language: English

Publication Type: Journal article, Review article

Publication year: 2013

Journal

Journal of Colloid and Interface Science Elsevier

Publisher: Elsevier

Book Volume: 392

Pages Range: 167-171

Journal Issue: 1

DOI: 10.1016/j.jcis.2012.09.087

Abstract

Alternating current electrophoretic deposition (AC-EPD) of polyacrylic acid (PAA)-titanium oxide (TiO2) nanoparticle composites on stainless steel electrodes was investigated in basic aqueous solution. AC square wave with duty cycle of 80% was applied at a frequency of 1kHz. FTIR-ATR spectra showed that both AC and direct current (DC) EPD successfully deposited PAA-TiO2 composites. The deposition rate using AC-EPD was lower than that obtained in direct current DC-EPD. However, the microstructure and surface morphology of the deposited composite coatings were different depending on the type of electric field applied. AC-EPD applied for not more than 5min led to smooth films without bubble formation, while DC-EPD for 1min or more showed deposits with microstructural defects possibly as result of water electrolysis. AC-EPD was thus for the first time demonstrated to be a suitable technique to deposit organic-inorganic composite coatings from aqueous suspensions, showing that applying a square wave and frequency of 1kHz leads to uniform PAA-TiO2 composite coatings on conductive materials. © 2012 Elsevier Inc.

Authors with CRIS profile

Judith Roether Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Dirk Schubert Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Tokyo Institute of Technology

Japan (JP)

How to cite

APA:

Yoshioka, T., Chavez-Valdez, A., Roether, J., Schubert, D.W., & Boccaccini, A.R. (2013). AC electrophoretic deposition of organic-inorganic composite coatings. Journal of Colloid and Interface Science, 392(1), 167-171. https://doi.org/10.1016/j.jcis.2012.09.087

MLA:

Yoshioka, T., et al. "AC electrophoretic deposition of organic-inorganic composite coatings." Journal of Colloid and Interface Science 392.1 (2013): 167-171.

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