Why Is Vapor Sorption Important?
The Moisture and Diffusion Properties of Packaging Are Important, Especially for the Food Industry to Ensure the Food Has the Longest Shelf Life Possible...
The moisture and diffusion properties of packaging are important, especially for the food industry to ensure the food has the longest shelf life possible. Dynamic vapor sorption can be used to determine these properties using either moisture vapor transmission rate (MVTR) technique or from the sorption kinetics.
What is dynamic vapor sorption used for?
Dynamic Vapor Sorption (DVS) is a gravimetric sorption technique that measures how quickly and how much of a solvent is absorbed by a sample: such as a dry powder absorbing water. It does this by varying the vapor concentration surrounding the sample and measuring the change in mass which this produces.
What is hysteresis in DVS?
The difference in water vapor uptake between the sorption and desorption isotherms is called the hysteresis. ... Although an isotherm experiment is the most common use of a DVS instrument, humidity (or other vapor) ramping experiments can be performed to investigate vapor-induced phase changes.
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