- microporous materials have pore diameters of less than 2 nm.
- mesoporous materials have pore diameters between 2 nm and 50 nm.
- macroporous materials have pore diameters of greater than 50 nm.
Micropores may be defined differently in other contexts. For example, in the context of porous aggregations such as soil, micropores are defined as cavities with sizes less than 30 μm.
Uses in laboratories
Microporous materials are often used in laboratory environments to facilitate contaminant-free exchange of gases. Mold spores, bacteria, and other airborne contaminants will become trapped, while allowing gases to pass through the material. This allows for a sterile environment within the contained area.
Microporous media used in large format printing applications normally with a pigment based ink to maintain colour balance and life expectancy of the resultant printed image.
Microporous material is also used as high performance insulation material used from home applications up to metal furnaces requiring material that can withstand more than 1000 Celsius.
- Characterisation of pore space in soil
- Nanoporous materials
- Conjugated microporous polymer, a type of microporous material
- Rouquerol, J.; et al. (1994). "Recommendations for the characterization of porous solids" (PDF). Pure Appl. Chem. 66: 1739–1758. doi:10.1351/pac199466081739. Retrieved 2015-02-24. CS1 maint: discouraged parameter (link) See page 1745.
- Soil Science Glossary Terms Committee (2008). Glossary of Soil Science Terms 2008. Madison, WI: Soil Science Society of America. ISBN 978-0-89118-851-3.