Abstract
Patterning polymer films is of significant interest for a broad range of applications. In this paper, a method of patterning polymer films is proposed, which is based on the liquid polymer film flow actuated by ionic wind. We placed the mask in ionic wind which can be modulated spatially. Under such conditions of spatial-modulated ionic winds, the liquid polymer presents different flow regimes, the morphologies of which duplicate the masks of different shapes. The patterning mechanism was investigated through numerical simulations. Different masks, such as line strips, serpentine-shaped stripes, and nuts, were adopted to manipulate the polymer-patterns with the presented method. The different polymer patterns were solidified and characterized, which verifies the feasibility of the methods for the formation of different complex polymer patterns.
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