Glossary of Terms
This is a small glossary of terms used here on our website. This is here to give you a better understanding of different terms used to describe our products and what they do.
- Adsorption
- a process that occurs when a gas or liquid solute accumulates on the surface of a solid or, more rarely, a liquid (adsorbent), forming a molecular or atomic film (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid or solid to form a solution. The term sorption encompasses both processes, while desorption is the reverse process.
- Chemisorption
- a type of adsorption whereby a molecule adheres to a surface through the formation of a chemical bond
- Density
- mass per unit volume
- Diameter
- the width of a circular or cylindrical object
- Liquid Extrusion
- The forcing of liquid out of a sample
- Liquid Intrusion
- The forcing of liquid into a sample
- Mean
- Occupying a middle or intermediate position between two extremes
- Nonwovens
- Nonwoven textiles are those which are neither woven nor knit, for example felt.
- Permeability
- a measure of the ability of a material to transmit fluids; the rate of flow of a liquid or gas through a porous material
- Pore
- a minute opening or orifice, as in the skin or a leaf, for perspiration, absorption, etc.
- Pore Size
- the size of the opening in the sample
- Pore Volume
- the amount of space, measured in cubic units, that an object or substance occupies
- Porosimetry
- an analytical technique used to determine various quantifiable aspects of a material's porous nature, such as pore diameter, total pore volume, surface area, and bulk and absolute densities.
- Porosity
- a measure of the void spaces in a material, and is measured as a fraction, between 0-1, or as a percentage between 0-100%.
- Surface Area
- the summation of the areas of the exposed sides of an object
- Viscosity
- the property of a fluid that resists the force tending to cause the fluid to flow; a resistance to flow