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The
DCAT 21 consists of the basic instrument with the
following technical equipment:
-
The
contact angle of powders, single fibers and fiber
bundles
and the adsorption behavior of liquids on wettable
materials according to the modified
Washburn
method,
-
The
dynamic contact angle and the surface energy prismatic
and cylindrical samples according to the Wilhelmy
method,
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The static surface and interfacial tension of liquids,
-
the critical micelle formation concentration of
-
Surfactants
(CMC) according to the Wilhelmy plate method,
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Lenard
frame method or the Du No ring method with automatic
ring correction according to Huh & Mason, Zuidema
& Waters and Harkins & Jordan,
as well as for fully automated reproducibility
measurements.
The
DCAT 21 consists of the basic instrument with the
following
technical equipment:
- High-precision
electro dynamically compensated
weighing system with automatic calibrating function,
- Software-controlled motorized height positioning of the
sample
vessel with variable speed,
- Automatic balance lock,
- integrated measuring and control electronics with digital
thermometer,
- Graphical display for weighing data, temperature and
other
measuring statuses
- Serial RS 232C interface with PC connecting cable,
- lluminated sample chamber with connection for inert
gas,
- Pt100 temperature sensor for the installation in the
temperature
control unit,
- It
is prepared for the installation of a liquid temperature
control unit
TV 50, TV 70 or TV 100 with integrated
- Magnetic
stirrer for mounting either of the sample vessels made of
borosilicate glass (with diameters 50,70
or
100 mm).
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