Details

Autor(en) / Beteiligte

• Rabnawaz, Muhammad
• Liu, Guojun
• Hu, Heng

Titel

Fluorine-Free Anti-Smudge Polyurethane Coatings

Ist Teil von

• Angewandte Chemie (International ed.), 2015-10, Vol.54 (43), p.12722-12727

Auflage

International ed. in English

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Conventionally, low‐surface‐tension fluorinated reagents are incorporated into anti‐smudge (oil‐ and water‐repellent) coatings for oil repellency. However, fluorinated compounds are expensive and an environmental concern because of their high stability and bioaccumulation. These factors limit their widespread application. We report herein the development of fluorine‐free anti‐smudge polyurethane coatings that are clear at thicknesses up to tens of micrometers and are able to sustain extensive surface damage. We demonstrate that these coatings can be applied readily onto a diverse range of substrates. Wear and tear without a smear: Anti‐smudge polyurethane coatings produced without fluorinated reagents were clear at thicknesses up to tens of micrometers. The coatings were applied to a diverse range of substrates and shown to repel ink, a fingerprint liquid, paint, and water. Moreover, they retained their anti‐smudge properties even after extensive wear.