Using NMR Relaxation as an Aid in Understanding Formulation of Pigment Dispersions
In general, the composition of commercial pigment dispersions – to produce, for example, paints and inks – is complex and typically comprises a fluid, a dispersant, a polymeric resin and the pigment material. In the preparation of aqueous dispersions, a wetting agent may additionally be needed if the pigment materials are hydrophobic.
NMR spectroscopy is one of the most powerful analytical tools used to probe details of the structure and dynamics of molecules. Traditional devices employing NMR technology require very high magnetic fields and, hence, very large magnets and related instrumentation. However, the advent of small powerful magnets has allowed instruments – such as the Mageleka MagnoMeter XRS™ – to be designed that have small footprints and are suited to normal, routine laboratory analysis.
