Hydrophobic data for plastics
Hydrophobic data for plastics
(OP)
I posted this originally in the materials engineering forum but then realised that this one is more appropriate, so apologies for double posting:
Can anyone supply me with (or point me in the right direction for) comparative data regarding the hydrophobic/hydrophyllic characteristics of the following materials:
polycarbonate - acrylic - ptfe - pctfe.
Can anyone supply me with (or point me in the right direction for) comparative data regarding the hydrophobic/hydrophyllic characteristics of the following materials:
polycarbonate - acrylic - ptfe - pctfe.






RE: Hydrophobic data for plastics
From the Polymer Handbook 4th Edition
Polycarbonate 42.9
PMMA (acrylic) 41.1
PTFE 23.9
PCTFE 30.9
All in mN/m, mJ/m2 or Dyn/cm (numerically all the same)
As you'd expect the PTFE is lowest and so most hydrophobic.
Beware that surface roughness makes a big differece to the contact angle and apparent hydrophobicity. A good book on that is Polymer Surface Modification by Chan (Hanser Gardner Publishers).
There is not any memory with less satisfaction than the memory of some temptation we resisted.
- James Branch Cabell