Προβολή Εργασίας
CREATION AND EVALUATION OF SUPER-HYDROPHOBIC SURFACES FOR THE PROTECTION OF STONE MONUMENTS
Π. Μανούδης1, Κ. Ματζιάρη1, Κ. Παναγιώτου1, Ι. Καραπαναγιώτης2, Α. Τσακάλωφ3, Ι. Ζουμπουρτικούδης4
1 Τμήμα Χημικών Μηχανικών, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης
2 Διαγνωστικό Κέντρο Έργων Τέχνης «ΟΡΜΥΛΙΑ»
3 Τμήμα Ιατρικής, Πανεπιστήμιο Θεσσαλίας
4 Τμήμα Βιομηχανικού Σχεδιασμού, Τ.Ε.Ι. Δυτικής Μακεδονίας |
ΣΥΝΤΟΜΗ ΠΕΡΙΛΗΨΗ
The influence of the addition of silica nanoparticles (mean size 7nm) in the protective performance of a siloxane resin is evaluated. The binary composition film was tested on three different Greek marbles. Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) images revealed the formation of micro- and nanostructures on the surface of the marbles.The polymeric coating allowed a substantial increase in water contact angle as it was increased up to 50% reaching a maximum value of 162 degrees and correspondingly made the marbles super-hydrophobic. The obtained results are examined in light of the Wenzel and Cassie-Baxter model.
Λέξεις Κλειδιά
silica nanoparticles, super hydrophobicity, stone protection, AFM, SEM
|
|
