RHEOLOGICAL PROPERTIES OF OLIGOISOBUTYLENE-WAX SYSTEMS

Specific features of the theological behavior of compositions of oligo isobutylene with organic structure-forming agents - natural and synthe tic waxes - were studied. The dependence of the dynamic viscosity on t he rate of shear and change in the yield stress with the nature and co ntent of the structure-forming agent are demonstrated. At small rates shear, a region resulting from the contribution of the structure-formi ng agent to viscous flow is revealed in the flow curves. A hysteresis in the systems studied is noted. The behavior of waxes as specific fil lers with enhanced affinity to the elastomeric matrix is analyzed.