Improved Adhesion to ABS Plastics by a Photocatalytic Reaction


Article Preview

The pretreatment of ABS (acrylonitrile-butadiene-styrene) plastics prior to metallization has been generally performed with strong acids, such as sulfuric, chromic, or potassium-permanganate acid. However, conventional wet-chemical pretreatment presents inherent environmental and safety problems to consider. In particular, the presence of Cr+6 imposes a serious environmental threat. Therefore, in this study, aspects of pretreatment, using the photocatalytic reaction in TiO2 sol, were investigated as a replacement for wet-chemical pretreatment. Surface characterization, before and after the pretreatment, was examined by X-ray photoelectron spectroscopy and scanning electron microscopy. A copper film was deposited by electroless plating, and the adhesion strength between the deposited film and ABS plastics was evaluated by the cross-cut tape test (ISO 2409). When ABS plastics were pre-treated in TiO2 sol, the adhesion strength was improved to levels obtained using a strong acid solution.



Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee




G. G. Kim et al., "Improved Adhesion to ABS Plastics by a Photocatalytic Reaction", Materials Science Forum, Vols. 544-545, pp. 75-78, 2007

Online since:

May 2007




[1] GE Corp., Metallization Guide, GE Plastics, (1995).

[2] I. K. Konstaninou, T. A. Albanis, Applied Catalalysis B: Environmental, 49 (2004) 1.

[3] Akihiko Kudo, Catalysis Surveys from Asia, Vol. 7, No. 1, April (2003) 31-8.

[4] K. L. Mittal and A. Pizzi, Adhesion promotion techniques: technological applications, Marcel Dekker, New York, (1999).

[5] S. J. Kim, Materials Letters, Volume 60, Issue 3, (February 2006) 364-367.

[6] N. V. Mandich, G. A. Krulik, On the mechanisms of plating on plastics, Plat. Surf. Finish. (December) (1993) 68-73.

[7] I. Mathieson and R. H. Bradley, Int. J. Adhes. Adhes. 16 (1996) 29-31.