Journal
LANGMUIR
Volume 26, Issue 18, Pages 14563-14566Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la101934t
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Funding
- Tekes (Finnish Funding Agency for Technology and Innovation)
- Academy of Finland
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The control of the wettability by nanoparticles (NPs) was studied by treating lignin model surfaces with silica NPs at various NP concentrations The experimental contact angles (CAs) were compared to a modified Wenzel equation, which takes into account the changes in the effective sui face area and the surface roughness The conclusion was drawn that the change of effective roughness is not visible, which implies that the NP-induced geometric heterogeneity is irrelevant for the CA change This is attributed to dynamics of contact line in the weak pinning regime
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