The RHEOGRAPH is an innovative High Pressure Capillary Rheometer, according to DIN 54811, to determine the flow behavior and viscosity of thermoplastics and rubbers. This capillary rheometer is a result of more than 50 years of experience gained with the various machine generations in the field of rheological capillary rheometry. Beside viscosity measurements close to processing shear rates our capillary rheometer is the basic instrument for an open plattform for advanced polymer characterization. Additional features like contifeed, thermal conductivity, pvt-measurements, counter pressure champer, elongation measurements, die swell measurements, shark-skin measurements complete the plattform of open material characterization.
The counter pressure viscosimeter is a rheological test instrument for the determination of the viscosity of plastics and flowable materials as a function of the counter pressure. It consists of two interconnected capillary rheometers, which can act simultaneously on a melt sample via a connecting barrel With this modified capillary rheometer, a determination of the flow curve as a function of a precisely defined backpressure is possible.Details