ASTM-D1646 Rubber Testing Instruments Mooney Viscometer Machine

ASTM-D1646 Rubber Testing Instruments Mooney Viscometer Machine

Download Brief:

ZL-3002 Mooney Viscometer.pdf

Mooney rubber Viscometer testing machine

It is an instrument used for measuring the mooney viscosity of a substance (mainly elastomers and rubbers). It contains a rotating spindle and heated dies, the substance encloses and overflow the spindle and the mooney viscosity is calculated from the torque on the spindle.

Standards:

ASTM-D2084,ASTM-D5289,ISO-6502, ASTM-D1646.

Technical parameter:

Test Results

Measure of Mooney viscosity (Large rotor):

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

Stress Relaxation

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 .

Graph ( with Viscosity-Time curve and Test temperature curve)

Mooney viscosity graph; Relaxation graph; log Mooney units Versus Log time graph.