The TRI/Autoporosimeter™
is a unique, computer-controlled, precision instrument with
user-friendly hardware and software. It measures pore size
distribution, pore volume distribution, and numerous other
characteristics of porous materials in the pore radii range
of 1 to 1,000 microns in a non-destructive manner.
The sample
in the test chamber is exposed to precisely controlled air
pressure. The radius of the largest pore able to hold liquid
is a function of the air pressure. As the air pressure increases
or decreases, differently sized pore groups drain or absorb
liquid. The pore volume of each group is equal to the volume
of transferred liquid. Unlike porometers that measure gas
permeability through a sample, the TRI/Autoporosimeter™
measures the pore volume distribution and numerous other properties
of porous structures.
The test
liquid may be any liquid that wets the sample, such as
water, organic liquids, or solutions, including liquids that
will come into contact with the test material in real-world
applications.
The TRI/Autoporosimeter™
performs pore structure analysis including:
- General
Pore Size Distribution: Cumulative and differential
pore volume distribution, total pore volume, porosity, average,
mean, effective and equivalent pore size;
- Specific
Pore Size Distributions: Surface pores, interlayer pores,
and warp or fill yarns in a fabric;
- Other
Porous Structure Characteristics: Contact angle in different
size pores, uptake and retention capillary pressure at different
amounts of liquid in the sample, uptake/drainage hysteresis,
surface area of different size pores, and total pore surface
area;
- Kinetics
of Porous Structure Changes: Structure transformations
during multiple adsorption/desoprtion cycles and the effect
of liquid sorption/desorption on the sample's thickness;
- Special
Studies: The effect of interactive liquid absorption
on pore dimensions, liquid partitioning between layers,
and the effect of applying an external load or constricting
a sample to a given thickness during liquid adsorption.
The user-friendly hardware and software permits development
of a variety of special methodologies to study specific
porous materials.
The TRI/Autoporosimeter™
can perform tests on a wide variety of materials like:
- Man-made
or natural
- Hard
or soft
- Fragile
or deformable
- High
or low porosity
- Dry
or wet
|
- Sintered
or fibrous materials
- Woven
or non-woven fabrics
- Papers
or cardboards
- Powders
- Porous
metals
|
- Filters
-
Membranes
-
Separators
-
Soils
-
Rocks
|
Most of
these measurements cannot be performed with mercury porosimetry.
Whereas mercury porosimeters are recognized as a serious health
hazard, the TRI/Autoporosimeter™meets
all laboratory safety requirements and is used for research
and development as well as quality control in numerous industrial
laboratories worldwide.
Price
available on request
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