CoralPor®
Under a scanning electron microscope, CoralPor® porous glasses resemble the structure of their namesake, coral skeletons. At high magnification, countless pores and channels are revealed. In comparison to other porous materials, the key advantages of porous glasses are found in their high chemical, thermal, and mechanical resistance that give them an extremely rigid and incompressible structure. SCHOTT offers nano-porous and macro-porous glasses that have fundamentally different properties, production processes, and applications. What they both have in common is an open porosity that is created through tightly controlled thermal and chemical treatment.
Nano- or Macro-Porous?
SCHOTT offers two porous materials for the nanometer- and micrometer-porous range, with the right pore size for every purpose. Typical application examples for different pore size ranges are shown in the graphic below.
CoralPor® Nano-Porous Glasses
Technical Data
| Technical Data of CoralPor® Nano-Porous Glasses | CoralPor® Nano-Porous Monoliths | CoralPor® Nano-Porous Powder |
|---|---|---|
| Shape | Rods, Discs, Plates | Powder |
| Average pore diameter | 4 – 10 nm | 4 – 400 nm |
| Specific surface area | 100 – 170 m2/g | 7 – 130 m2/g |
| Specific pore volume | 0.2 – 0.3 cm3/g | 0.4 – 2 cm3/g |
Typical Pore Size Distribution
Production process of Nano-Porous Glasses
CoralPor® Macro-Porous Glasses
Technical Data
| Technical Data of CoralPor® Macro-Porous Glasses | CoralPor® Macro-Porous Monoliths | CoralPor® Macro-Porous Granulate |
|---|---|---|
| Shape | Rods, Discs, Plates | Granulate |
| Average pore diameter | typically 1-500 µm | typically 1-300 µm |
| Pore diameter distribution | Dependent on customer request | Dependent on customer request |
| Porosity in volume % | 10 – 80 % | 10 – 80 % |
Julia Reuß
Specialist Glass