Surface Properties Testing - WIP Flashcards
How is Wettability measured?
Using the water contact angle.
Hydrophilic surfaces have low contact angles (<90°), good adhesiveness and good wettability. Super hydrophilic molecules have <20° angle
Hydrophobic surfaces have high contact angles, poor adhesiveness and poor wettability. Super hydrophobic molecules have >150° angle
Why is wettability important?
Nonstick surface Teflon (PTFE) contains fluorocarbons which are environmentally persistent, so there is a desire to move away from fluorocarbons
Use can be antibacterial surgical implants, ship hull coatings, clothing/body armour and crude oil separation
What is SEM used for?
How does SEM work?
What is EDX used for?
How does EDX work?
What is AFM used for?
How does AFM work?
What us SAXS used for?
How does SAXS work?
What is FTIR-ATR used for?
How does FTIR-ATR work?
What is Raman spectroscopy used for?
How does Raman spectroscopy work?
