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Spreading of Liquid Droplets on Cylindrical Surfaces: Accurate Determination of Contact Angle.

Published online by Cambridge University Press:  21 February 2011

H. Daniel Wagner ,
E. Wiesel  and
H. E. Gallis
H. Daniel Wagner
Affiliation:
Polymeric Composites Laboratory, Materials Research Department, The Weizmann Institute of Science, Rehovot 76100, Israel
E. Wiesel
Affiliation:
Polymeric Composites Laboratory, Materials Research Department, The Weizmann Institute of Science, Rehovot 76100, Israel
H. E. Gallis
Affiliation:
Polymeric Composites Laboratory, Materials Research Department, The Weizmann Institute of Science, Rehovot 76100, Israel
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Abstract

The wetting of cylindrical monofilaments by liquid polymers is a problem of much scientific and technological importance. In particular, the characterization of the physicochemical nature of interfaces is a key problem in the field of advanced fibrous composites. The macroscopic regime contact angle, which reflects the energetics of wetting at the solid-liquid interface, is difficult to measure by usual methods in the case of very thin cylindrical fibers.

In the present article a numerical method is proposed for the calculation of macroscopic regime contact angles from the shape of a liquid droplet spread onto a cylindrical monofilament. This method, which builds on earlier theoretical treatments by Yamaki and Katayama [1], and Carroll [2], very much improve the accuracy of the contact angle obtained. Experimental results with high-strength carbon, para-aramid, and glass fibers, are presented to demonstrate the high degree of accuracy of the method proposed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 170: Symposium N – Interfaces in Composites , 1989 , 141
Copyright
Copyright © Materials Research Society 1990

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References

1. Yamaki, J., Katayama, Y., J. Appl. Polym. Sci. 19, 2897 (1975).Google Scholar
2. Carroll, B. J., J. Coll. Interf. Sci. 57, (3), 488 (1976).Google Scholar
3. Gilbert, A. (private communication).Google Scholar
4. Nardin, M., Ward, I. M., Mater. Sci. Technol. 3, 814 (1987).Google Scholar
5. Wagner, H. D., J. Appl. Phys., in press (1990).Google Scholar
6. Carlson, B. C., Special Functions of Applied Mathematics, (New York, Academic Press, 1977).Google Scholar
7. Chang, H. W., Smith, R. P., Li, S. K., Neumann, A. W., in Molecular Characterization of Composite Interfaces (Polymer Sci. & Technol. Ser.: Vol.27), Ishida, H. and Kumar, J., Eds., (New Jersey, Plenum Press, 1985), p. 413.Google Scholar