Wood is an important engineering material. However, wood surface is susceptible to moisture and biological degradation during natural weathering process that occurs both indoors and outdoors due to the hydrophilic nature of its cell walls. This significantly reduces the durability and service lifetime of wood products. Preparing superhydrophobic surfaces on a wood substrate has shown a great potential to address these problems and functionalize the wood (Teisala and Butt 2018) Recent research has also shown that liquid repellence of oils and other low surface tension liquids is possible and is called superamphiphobicity (Tuominen et al. 2016), which would enhance the applicability of such wood surface treatment.
In this work, we prepared superamphiphobic wood surfaces based on a solvent-free method, i.e., gas-phase silicone nanofilaments reaction and followed by gas-phase fluorine alkylsilane silanization (Zimmermann et al. 2008).The surface morphology, chemical compositions and wettability of the modified wood surfaces were studied.
Keywords: superamphiphobic, silicone nanofilaments, wood surface
Authors
Haiyan Yin
KTH Royal Institute of Technology, Stockholm
Maziar Sedighi Moghaddam
Magnus Wålinder
Agne Swerin
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