Analyte:
Equipment:
Evaluation methods and targets:
Application examples:
Contact person:
Dr. Carola Fanter
Research Division
Biopolymers
Tel.: +49 (0) 331-568-1515
Fax: +49 (0) 331-568-2515
e-mail: carola.fanter@iap.fraunhofer.de
- Solid samples with or without pores/cavaties
- Samples must be dry
- 0,5 – 3 g sample material (dependent of porosity)
Equipment:
- Sorptomatic1990 (Fa. Thermo Electron Corporation, Milano, Italy)
- Physisorption: N2, Kr, He
- Two vacuum ovens for pre-treatment of samples with a choice of 3 temperature programming modes
Evaluation methods and targets:
- determination of specific surface
(> 0,2 m²/gwith N2, > 0,005 m²/g with Kr) - determination of pore diameters and –distribution using different model calculations (ADP-Software)
- registration of pores between 0,4 nm and 100 nm diameter
- determination of pore volumes > 0,001 cm³/g
Application examples:
- determination of specific surface, pore diameters and their distribution of aero-cellulose
- determination of specific surface of foamed chitosans
- determination of specific surface and micropores of cellulosic nano-particles
Contact person:
Dr. Carola Fanter
Research Division
Biopolymers
Tel.: +49 (0) 331-568-1515
Fax: +49 (0) 331-568-2515
e-mail: carola.fanter@iap.fraunhofer.de