Shear viscosity and elongational viscosity measurement R6000
Achieves highly reproducible measurements of corrected accurate shear viscosity. Provides a new indicator for material design.
The flowability of polymers cannot be predicted because it is "non-linear." This is also why the melt index (MI), which should be an indicator of flowability, often does not match the actual moldability. The more complex flow known as elongational viscosity is particularly difficult to predict accurately, and the only way to obtain reliable data is to measure it in the same range as the actual molding speed. Imatec provides highly reproducible viscosity data thanks to 20 years of experience and the latest control technology.
basic information
【Features】 ○ Revolutionary twin capillary method ○ Evaluation of processability by elongational viscosity ○ High measurement reproducibility ○ Latest motor control and extensive shear rates ○ Excellent control technology ○ Touch panel that consolidates functions ○ Pressure balance detection function ○ Database function ○ Rheology calculator ● For more details, please contact us or refer to the catalog.
Price information
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Delivery Time
Model number/Brand name
Imatec Corporation
Applications/Examples of results
◎ A computer-controlled twin capillary rheometer with two measuring cylinders. ◎ No regular calibration work by the operator is required! ◎ Automatic calibration with a platinum sensor (high precision 0.01%, temperature stability 0.0003%/°C, long-term variation rate 0.001%/year). ◎ The barrel is divided into three zones, each independently controlled for temperature. The overall temperature uniformity of the barrel is excellent! ◎ The temperature control sensor is installed in a newly developed knuckle heater, very close to the center of the barrel. The sample temperature is accurately controlled. ◎ The variable range of piston speed is from 0.01 mm/min to 500 mm/min (with an option for a maximum speed of 1,000 mm/min). ◎ Using a 0.25 mm die, the shear rate can reach up to 9.6 × 10^5/s. ◎ An ultra-precision pressure sensor is used for measuring resin pressure, providing excellent measurement stability! ◎ The software includes a pressure equilibrium point detection function, capturing accurate pressure data in the minimum necessary time. ◎ The pressure sensor is inserted at the die entrance to directly measure the resin pressure. The load applied to the piston is measured separately with a load cell. ◎ A forced exhaust system can also be installed in case toxic gases are generated during measurement.
