Surface analysis

Analyte:

• Solid samples with or without pores/cavaties
• Samples must be dry
• 0.5 – 1 g sample material (dependent of porosity)

Equipment:

Mercury porosimeter composed of :

• Pascal 140 with pressure range between 0.013 bis 0.4 MPa of determination of macro pores and
• Pascal 440 with pressure range between 0.1 bis 400 MPa of determination of meso pores
  (Fa. Thermo Electron Corporation, Milano, Italy)

Evaluation methods and targets:

• Determination of cumulative pore volume of measurement range
• Determination of pore diameters und –distribution (registration of pores between 4 nm and 116,000 nm diameter)
• Calculation of porosity und density
• Calculation of specific surface taking as a basis different models of pores
• Determination of particle size and -distribution between 0.01 and 330 µm

Application examples:

• Determination of cumulative pore volume, pore diameter anddistribution of porous bead cellulose
• Determination of cumulative pore volume, pore diameter and
• Distribution of foamed chitosan
• Determination of cumulative pore volume, pore diameter and
• Distribution of concrete