Simple processes for the preparation of superhydrophobic polymer surfaces
Yükleniyor...
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Two simple processes; (i) spin-coating, and (ii) doctor blade coating of silica/polymer dispersions are described for the preparation of superhydrophobic polymer surfaces. To demonstrate the versatility and broad applicability of the processes, polymeric surfaces modified included a thermoplastic resin, polystyrene (PS) and a thermoset, crosslinked epoxy resin (ER). Micro/nano hierarchical nature of the surface topographies obtained were demonstrated by scanning electron microscopy (SEM), atomic force microscopy (AFM) and white light interferometry (WLI) studies. Roughness factor (r) and average surface roughness (Ra) values, which are critical in obtaining superhydrophobic surfaces were determined for each polymeric system. It was clearly demonstrated that increased (r) and (Ra) values resulted in superhydrophobic behavior with very high static, advancing and receding water contact angles, well above 150° and contact angle hysteresis values of less than 10°. Incorporation of small amounts (1.0% by weight) of a silicone copolymer or a perfluoroether glycol oligomer reduced the contact angle hysteresis in the epoxy resin system well below 10° and produced truly superhydrophobic surfaces.
Açıklama
Anahtar Kelimeler
Superhydrophobic Coating, Contact Angle, Surface Wetting, Superhydrophobe Beschichtung, Kontaktwinkel, Oberflächenbenetzung, Süperhidrofobik Kaplama, Temas açısı, Yüzey Islatma
Kaynak
Polymer
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
99
Sayı
Künye
Koşak Söz, C., Yılgör, E., & Yılgör, İ. (2016). Simple processes for the preparation of superhydrophobic polymer surfaces. Polymer, 99, 580-593.
