Time-Temperature Correspondence of the Dynamic Mechanical Properties of Halthane 73-18 and Halthane 87-1

摘要

The time-temperature correspondence of the storage shear modulus, loss shear modulus, and loss tangent of two urethane adhesives, Halthane 73-18 and Halthane 87-1, have been determined. Experimental determinations of the frequency dependence of the shear moduli were made from 0.01 to 3.0 Hz at various temperatures ranging from -60 exp 0 C for Halthane 73-18 and -91.5 exp 0 C for Halthane 87-1 to 25 exp 0 C for both. The WLF equation was used to determine the frequency dependence of the shear moduli and loss tangent up to frequencies of 10 PHz. (ERA citation 04:024026)