To investigate water vapor sorption behavior of material is important both from scientific
and industrial standpoint.Measuring water vapor isotherms gives a lot of information
about sorption properties such as hydrophric and hydrophobic property of particle
surface. But It is difficult and laborious. The BELSORP-aqua3 makes it possible to
obtain not only water but other vapor adsorption isotherms with simple operation.
The unique and the longest years of experiences result in the technology. This is
the powerful tool for the researcher in the pharmaceutical, food industry, material
science and other field.
This instrument is our high-end volumetric gas adsorption instrument. To obtain useful
information about micropore, it is important to measure adsorption isotherm from
low relative pressure with accuracy. The BELSORP-max is designed for wide range adsorption
isotherm for surface area and pore size distribution analysis. It can measure adsorption
isotherms from relative pressure as low as 1 x10-8 (N2 at 77K, Ar at 87K), using
a 13.3Pa pressure transducer. Also AFSM, the new method for free space measurement,
is applied and adsorption isotherm can be measured with high accuracy. Chemisorption
option enables unattended chemisorption measurement from pretreatment with step programs.
PEM (Proton Exchange Membrane) is used as electrolyte for PEFC and FMFC. For PEM
development, it is very important to know proton conductivity and water absorption
properties. With the conventional instruments, those properties have to be measured
separately. Our newly developed system, MSB-AD-V-FC can measure water absorption
amount and proton conductivity simultaneously.