MASS FABRICATION & EVOLUTION OF BEADS ON FIBER

Abstract

In this work, we systematically explore the relation between the coating speeds and the finally formed liquid beads on fiber. The main focus of the paper lies with contact angle, length and height of beads on fiber and the fiber drawing velocity. For this purpose, free energy variation method is applied, based upon which the boundary conditions for the beads-on-fiber system and governing equations were re-derived. A combination of both, first and the second kind of the Legendre’s elliptical functions are used to determine the geometrical shape of the beads. Contact angle is extracted from the experimental data by using a semi-analytic approach. This approach can be referred to for determining surface tension of fluids for cases such as sessile drop on a fiber.