Report 1: A Comparison of Techniques for Measuring the Flow Properties of One-Component Filled Epoxy Adhesives

This report compares three test techniques for the measurement of adhesive flow properties: rotational rheometry, capillary extrusion rheometry and oscillatory rheometry. Experimental measurements were made using a one part filled epoxy. Data obtained using the three techniques were compared and the subsequent mathematical treatment of the data was assessed. The Cox-Merz relationship was used to compare dynamic data obtained by laboratory instruments at relatively low strains with steady shear data obtained by capillary extrusion measurements. It was concluded that there is a requirement for standard methods of presenting flow data.



Copyright © 2003, TWI Ltd

	Close window
	Print