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Rotational rheometry is a powerful technique for the measurement of complex shear rheology across all material types – sensitive enough to measure the viscosity of dilute polymer solutions, and yet robust enough to measure the viscoelasticity of high modulus polymers or composites. Rotational rheometry is ideal for discerning structural and compositional changes of materials, which can be critical controlling factors in flow and deformation properties, and ultimately product stability and performance.
The basics of the rotational rheometry technique are as follows:
Rotational rheometry also enables other rheological properties to be evaluated, including yield stress, thixotropy, creep and recovery and stress relaxation.
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Dr Steve Carrington of Malvern Instruments and Prof. D. J. McClements of the University of Massachusetts describe the use of rheology to measure how food changes during mastication and to compare the rheological behaviour of low fat sauces with consu...
This whitepaper discusses the use of rheology for optimizing the performance of paints and coatings
This application note shows how using a solvent trap can be used to prevent sample drying/solvent loss during extended testing, helping to ensure that only rheological changes are being measured and not artifacts resulting from drying of the sample a...
This application note shows how in-situ characterization of rheological properties of UV curable materials can be performed on a Kinexus rotational rheometer with UV curing accessory.
This note shows how Kinexus rotational rheometer with advanced axial test capabilities can be used to assess the tackiness or cohesive/adhesive properties of pressure sensitive adhesives.
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