CRYSTEX 42 datasheet0 pages

CRYSTEX 42
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AUTOMATED SOLUBLE FRACTION MEASUREMENT

High-throughput system for simultaneous
measurement of the Soluble Fraction, Ethylene
Content and Intrinsic Viscosity.
CRYSTEX 42 is a large-capacity and fully-automated approach
for obtaining the soluble fraction in polypropylene and
copolymers. It stands as a modern alternative to the traditional
wet chemistry method based on xylene solubility, which is
known for being very time consuming and for requiring
constant manual handling of solvent at high temperature.
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KEY FEATURES
Designed for QC and R&D laboratories.
Additional analysis of ethylene content and intrinsic viscosity for the
crystalline fraction and whole sample.
Fully automated process for 42 samples.

This new system is very easy to operate and obtains the
amorphous phase content in a shorter time, it eliminates the
manual handling of solvent, and it does not require performing
any of the traditional tedious tasks by the analyst, increasing
the health and safety levels in the laboratory.

Dissolution and full analysis completed in 2 hours.

Results are very precise in part, due to automation, but also for
integrating an infrared detector (IR4) to measure precisely the
amount of sample analyzed; it measures Ethylene Content as
well. Moreover, for a truly complete analysis, the instrument
measures intrinsic viscosity by means of a built-in dual capillary
viscometer. All results (concentration, ethylene content and
intrinsic viscosity) are obtained simultaneously for the whole
sample, the soluble fraction, and the crystalline fraction.

Highly precise results.

No need for exact sample weighing.
No solvent handling.
No external filtration.

Application to other polyolefins.

Soluble Fraction

Crystalline Fraction

Whole Sample

Weight %

Weight %

Ethylene Content %

Ethylene Content %

Ethylene Content %

Intrinsic Viscosity

CRYSTEX 42 is based on the same TREF separation concept as
its sibling instrument, CRYSTEX QC, in which the sample is
loaded into a TREF column twice. The first injection serves to
measure the whole polymer and the second one remains within
the column for a crystallization ramp that results in the
separation of the soluble from the crystalline fraction.

Intrinsic Viscosity

Intrinsic Viscosity

While CRYSTEX QC was designed to be installed in each
production plant to monitor in real time the process or the
grade changes analyzing a significant amount of powder sample
(up to 4 grams), CRYSTEX 42, thanks to the incorporation of
a high temperature autosampler with 42 positions, becomes a
perfect complement to be used in a central lab, where large
batches of pelletized more homogeneous samples need to be
analyzed.

Dissolution

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Information provided by CRYSTEX 42 in a single analysis.
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1st Load

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T ºC

Whole sample
C2 %
[ɳ]

2nd Load

Re-dissolution

Precipitation

Crystalline fraction
Non Sol. %
C2 %
[ɳ]

Soluble fraction
S.F. %
C2 %
[ɳ]
Time

Find out more at www.polymerchar.com/CRYSTEX_42

Polymer Characterization, S.A.

Gustave Eiffel, 8 Paterna
E-46980 Valencia, Spain

T.: +34 96 131 81 20
F.: +34 96 131 81 22

Elution of the whole sample and PP fractions in a TREF column.

info@polymerchar.com
www.polymerchar.com