EQUIPMENT | MATERIALS TESTING


The Morphologi 4 is a fully automated system for characterising particles ranging in size from less than one micron up to a millimetre


WatersAcquityAdvanced Polymer Chromatogra- phy (APC) System with Malvern Panalytical’s Omnisec Reveal. The companies say that R&D scientists can now access higher sensitivity, higher resolution data than ever before, giving them better insight into their samples without the need for column calibration. According to the companies, the emergence of new and increasingly complex polymers with a broad range of structural and compositional diversity has been a driving force in the develop- ment of advanced analytical and separation technologies for polymer characterisation. Today, analysts seek innovative techniques that allow them to characterise and understand their highly complex samples better. Combining high efficiency columns with the low overall system dispersion of Waters’ APC significantly improves resolution, especially for low molecular weight oligomers. In addition, run times can be up to five times faster


than with traditional Gel Permeation Chromatogra- phy (GPC), enabling higher sample throughput and more rapid method development. Use of this high speed, high resolution separa- tion technique has historically seen limited pairing with advanced online detectors, such as light scattering, due to limitations in the dispersion characteristics of these detectors. However, as the advantages of the APC become clearer, both in research and industry, manufacturers have been working to reduce dispersion within their advanced detector options, while maintaining the high resolution of the APC separation. Malvern Panalyti- cal says that it has achieved this with its Omnisec Reveal multidetector module. Coupling the APC System to the Omnisec Reveal offers the ability to calculate absolute molecular weight, intrinsic viscosity and hydrodynamic radius. These param- eters can be used to predict polymer behaviours in solutions/product matrices and to give a more comprehensive understanding of polymer struc- ture. This speed of analysis and easy access to more detailed information provides a quicker pathway to the development of more successful and efficient products.


Imaging techniques Malvern Panalytical has also launched three new systems for materials characterisation. The new Morphologi range of automated static imaging systems for particle characterisation offers rapid, automated component-specific measurement of particle size, shape and chemical composition. They deliver substantial improvements in measure- ment speed, image definition, and the range of materials that can be successfully analysed.


Zwick makes an impact at MGG


Müller-Guttenbrunn Group subsidiary MGG Polymers has installed a HIT 5.5 pendulum impact tester from Zwick Roell as part of an upgrade of its test laboratory. The company produces 50,000 tonnes of plastic compounds annually, primarily PP, HIPS, ABS and PC/ ABS, and uses its testing laboratory to analyse new materials, for incoming goods inspections, and for production-related product inspections. Together with tensile and flexure tests, Charpy impact tests are one of its most frequently performed. The HIT 5.5 is a 5 Joule model supporting all common Charpy (ISO 179-1 and -2, ASTM D6110) and Izod (ISO 180, ASTM D256, ASTM D4508) standards. � www.zwick.com


76 COMPOUNDING WORLD | April 2018


A HIT 5.5 impact tester in operation at MGG Polymers www.compoundingworld.com


PHOTO: MALVERN PANALYTICAL


PHOTO: ZWICK ROELL


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