Powder's hydrophilicity is important when it interacts with the binder for 3D printing application. At my best knowledge, hydrophilicity is normally determined by contact angle. But how about powders? Some researchers had done wettability test by dropping binder into a powder bed and recorded it with high speed camera. But that only how good is the powder bed packing factor that very connected with powder size. Does anyone have any idea how to determine the hydrophilicity of the powder?
Kruss tensiometer (K 100) has offer a good methodology for hydrophilicity measurement of powders. The results are very reliable, I hope that this instrument should resolve your problem
Hi,
please see this link that explains how they determine the wettabilty and powder bed hydrophilicity for powders employed in pharmaceutical industry. I think you could use the principles for your powders too.
http://www.pharmainfo.net/reviews/evaluation-parameters-spherical-agglomerates-formed-spherical-crystallization-techniques
Good luck!
Luiza
- Badges
- Science topic