Continuous manufacturing of reentrant structures via roll‐to‐roll process. Issue 1 (23rd September 2018)

• Record Type: Journal Article
• Authors: Kodihalli Shivaprakash, Nischay; Zhang, Jinde; Panwar, Artee; Barry, Carol; Truong, Quoc; Mead, Joey
• Is Part Of: Journal of applied polymer science. Volume 136:Issue 1(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-09-23
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.46980
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: Reentrant structures have been deemed necessary for repelling low‐surface‐tension liquids. In this article, a novel manufacturing methodology using the roll‐to‐roll process to enable continuous manufacturing of reentrant structures over large areas on a polymeric film was demonstrated. A two‐stage process, composed of embossing followed by post‐compression, allowed the fabrication of reentrant structures, which cannot be easily fabricated using other processes over large areas in a continuous manner. The treatment of the reentrant surface structures with an additional coating of 1 H, 1 H, 2 H, 2 H ‐perfluorooctyltrichlorosilane layer provided liquid repellency with contact angles of 155 and 140°, respectively, for water (Ylv = 72 mN m −1 ) and diiodomethane (Ylv = 50 mN m −1 ). © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2019, 136, 46980. Abstract :