Soluble Fraction, Ethylene Content and Intrinsic Viscosity determination for Quality Control Laboratories of Polypropylene Plants.

Polymer Char’s CRYSTEX® QC means a step forward in technology for automation and precision of Soluble Fraction determination (amorphous fraction) in polypropylene and polyethylene resins. Based in TREF technique, it has been developed for continuous operation in manufacturing plant laboratories with minimum bench space and utilities requirements.

CRYSTEX® QC overcomes all the difficulties of the gravimetric methods based on xylene solubility and traditional wet chemistry, by eliminating sample weighing, external filtration or extraction devices, and all the associated tedious manual operations. Therefore, no handling of any solvent by the operators is required, neither external filtration nor solvent evaporation.

Ethylene content and Intrinsic Viscosity can be measured as well in the same analytical process, which takes approximately 2 hours starting when the sample is put in the vial up to final results, being ready once again for consecutive sample analyses. Precise quantification is achieved by means of an infrared detector, so no analytical balance is needed with CRYSTEX® QC.

Fully-automated analysis of up to 42 samples, known to be homogenous (pelletized) can be performed using the same technology in the new CRYSTEX® 42, but with samples that weigh up to 300 mg.