Method to determine PU foam solid density and specific surface
Method to determine PU foam solid density and specific surface
(OP)
I'm searching for methods to determine the following on the stated material, any suggestion would be very welcome!
Case:
Material= Hydrophilic flexible PU foam
To determine
- Solid specific density. (p*)
- Relative density (p*/p)
- Foam specific surface area (A/V, this is the surface area of the foam struts.
Case:
Material= Hydrophilic flexible PU foam
To determine
- Solid specific density. (p*)
- Relative density (p*/p)
- Foam specific surface area (A/V, this is the surface area of the foam struts.





RE: Method to determine PU foam solid density and specific surface
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RE: Method to determine PU foam solid density and specific surface
Regards
Pat
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RE: Method to determine PU foam solid density and specific surface
I'm a quality engineer on this material however.... I don't have all the answers :)
The surface area I understood was measurable with a BET measurement however the solid density measurement is a different story. This material swells and I was wondering if I use the plain old pycnometer method if I have to correct in some way and how I must calculate the solid volume and mass of the material introduced.
RE: Method to determine PU foam solid density and specific surface
RE: Method to determine PU foam solid density and specific surface
TTFN

FAQ731-376: Eng-Tips.com Forum Policies