Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 8, Pages 5653-5660Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b11420
Keywords
atomic layer deposition; TiO2; hydrophobic; durable; service performance
Funding
- National Natural Science Fund of Distinguished Young Scholars [51325306]
- National Natural Science Foundation of China [51203124]
- Major State Basic Research Development Program (973 Program) [2012CB722701]
- Program for Middle-aged and Young Talents from Educational Commission of Hubei Province [Q20120103]
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To obtain a hydrophobic surface, TiO2 coatings are deposited on the surface of silk fabric using atomic layer deposition (ALD) to realize a hierarchical roughness structure. The surface morphology and topography, structure, and wettability properties of bare silk fabric and TiO2-coated silk fabrics thus prepared are evaluated using scanning electron microscopy (SEM), field-emission scanning electron microscopy (FESEM), scanning probe microscope (SPM), X-ray diffraction (XRD), static water contact angles (WCAs), and roll-off angles, respectively. The surfaces of the silk fabrics with the TiO2 coatings exhibit higher surface roughnesses compared with those of the bare silk fabric. Importantly, the hydrophobic :and laundering durability properties of the TiO2-coated silk fabrics are largely improved by increasing the thickness of the ALD TiO2 coating. Meanwhile, the ALD process has a litter effect On the service performance of silk fabric. Overall, TiO2 coating, using an ALD process is recognized as a promising approach to produce hydrophobic surfaces for elastic materials.
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