FUNCTIONAL-EVALUATION OF A LIQUID-MOLDING 2-COMPONENT COMBINATION RESIN - STUDY OF AN ADVANCED MATERIAL

Functional parameters contributing to the recognizable good performanc e of a highly crosslinked olefinic polymer based on cyclopentadiene ha ve been evaluated by a limited range of stress decay and creep recover y from a fixed deformation over constant time periods. The experimenta l design for these involved a calculated stress (load) at the initial sample deformation (displacement) for determination of changes in stre ss in bending mode and flex creep under applied load at three constant temperature segments of 6 h each with 20 min recovery time between se gments. The results have identified a behavior which is typical of int erfacial orientational effect in a two-component system. Thermal condu ctivity, heat capacity and density at the same temperatures were measu red for determination of variations in thermal diffusivity as an indic ation of the competing effects of densification and thermal expansion fbr such a system. Static charging and polarization experiments were p erformed for evaluation of other desired uses of this material, in mov ing parts and in direct or induced voltage applications. The latter al lows measurement of dynamic charge transport through the resin matrix. Calculations indicate generation of charge carriers from weak seconda ry bonding typical of polymer interfaces. The polarization itself cons ists of dipole orientation characterized by relatively high activation energy. The intrinsic mechanical properties for this material had bee n determined by the manufacturer, but the performance parameters repor ted in this study have been determined for the first time for explorat ion of further uses for this material.