Rotoray viscometers are used commonly to measure the viscosity value(also called apparent viscosity)of Newtonian or Non-Newtonian materials under a special rotational speed and a special spindle, but for high polymer m-aterial such as coating, ink and adhesive etc, almost resin, emulsion and material itself are Non-newtonian liuquid. They always show different rheological properties under different shear rate(related to rotational speed and spindle shape). To compare this rheological properties of different materials, the normal method used in coatings and related materials is measuring its shear thinning(Thix index)and thixotropy:The extent of shear thinning is indicated by the drop in viscosity with increasing rotational speed. The degree of thixotropyis indicated by comparison of viscosities at increasing and decreasing rotational speeds, viscosityrecovery , or viscosities before and after high shear. The high-shear treatment approximates she-aring during paint application. The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application.
Biuged offers some different types Rheometers according to different material rhelogical properties. Operator can set different measuring programme according to different requirements( such as change shear rate automatically), and using relevant professional software, the materials’rheological properties could be analysed and known well, including simulation of material under different application.
Features
◆ Display sample shear rate and shear stress
◆ Continuous viscosity testing and sound alarm when beyond measurement range
◆ 7 inch high definition touch scree , easy to operate and display rich information. Powerful human-machine interface and various humanized operation menu for conversion.
◆ Anti-static shell and PC material lifting pole
◆ Build-in temperature probe RTD
◆ ARM chip processor: higher data processing speed
◆ New designed durable small axles
◆ Come with a gigabit ethernet interface to transfer data, reliable and quick.
◆ Come with USB interface, support operate to save measurement through external disk U: single point, continuous and timed saving ways for option.
◆ Come with RS 232 interface, can print measuring data by mini-printer with less labor.
◆ Calibrated by user, temperature and viscosity correction factor are protected by password, also can be modified by user when they have reliable and accurate data.
◆ Convert freely between various viscosity units, dynamic viscosity convert kinematic viscosity automatically
◆ Linear calibration by a computer
◆ Power supply: 100V-240V, powerful anti-interference
◆ Accompanied with detailed operation instruction
◆ Professional BGD 1608 programmed analyse software for option, can display sample rheological curve
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