MV-A Mooney Viscometer

MV-A Mooney Viscometer is used for measuring viscosity and relaxation of rubber, raw rubber stock or rubber mass prevulcanization properties, it is also used for measuring viscosity in Mooney value for compounded or uncompounded unvulcanized natural, synthetic or regenerated rubber.MV-A Mooney Viscometer is produced based on existing ISO289-1, ISO289-4, ASTM D1646, GBT 1233, GBT 1232.

 

Features:

Control and data acquisition system: Omron PLC and Touch Screen.

Heating system: Omron gauge, grade A temp sensor (PT100) and efficient heating plate.

Communication: One Rs232 Serial Port or by Usb Port via Usb-to-Seril cable.

 

Technical indexes:

Temperature range: Room temp to 200°C

Temperature PID control: ±0.1°C

Temperature display resolution: 0.1°C              

Rate of temperature increase: 25°C/min     

Measurement range of torque: 0-200Mv    

Torque resolution: 0.01Mv

Frequency of Rotor: 2±0.02 r/min

Dimension: 520*540*1040mm (W*L*H)

Weight: about 120Kg

Power: AC220~230V, 50/60Hz, 3A

 

Measure of Mooney viscosity / Stress Relaxation

MI - Initial Mooney viscosity.

ML- The minimum Mooney value in the last 30 seconds before the motor stopped.

Mx-t - Mooney value relating to time t.  x-the time of preheat, t-Mooney test time.

MRe - Mooney value at the end of stress relaxation.

TRx - time needed for x% torque stress relaxation.

Xy% - % of  Viscosity decay after motor stopped y sec.      

The value of exponent  a, the constant k, the correlation coefficient  r, and the  area A.

Rlx-K - The torque in Mooney units 1s after the motor is stopped.

Rlx_a - The rate of stress relaxation.

Rlx_r  - Correlation coefficient.

Rlx_A - Area under the stress relaxation curve during relaxation test.

 

Measure of Prevulcanization

Scorch Data testing sample results:   

                                  -Scorch time curve   

                                  -Temperature curve   

                                  -Curve index ( small/Large Rotor test)

MI - initial Mooney viscosity.

ML - Minimum Mooney viscosity

MF - Maximum Mooney viscosity in the         

                                  end of the test.

Mx-t - Mooney value relating to time t.           

                                  x-the time of preheat,            

                                  t -Mooney test time

M5/M3 - ML＋5/3 Mooney;  M35/M18 - ML＋35/18 Mooney.

t5/t3 - Mooney burning time, M5/M3 corresponding time, Unit: min.

t35/t18 - Mooney vulcanizing time, ML+35/18 corresponding time, unit: min.