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Good practice guides

Surface tension and extrusion-based rheological characterisation of hot melt adhesives GPG81

This Guide presents guidance for good practice in measurement of the surface tension and the shear and extensional flow properties of hot melt adhesives. It covers:

The measurement of surface tension of hot melt adhesives using the pendant drop method,
•    the measurement of shear viscosity and entrance pressure drop by capillary extrusion rheometry,
•    the measurement of melt flow rate behaviour using a simple extrusion rheometer, and
•    the analysis of the melt flow rate results obtained using ‘long’ and ‘short’ dies to determine shear viscosity and entrance pressure drop data.


08 Jun 2020
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