MVR (volume method) : Calculate the melt volume flow rate (MVR) with the following formula, in cm3/10min
MVR tref (theta, mnom) = A * * l/t = 427 * l/t
θ is the test temperature, ℃
Mnom is the nominal load, kg
A is the average cross-sectional area of piston and barrel (equal to 0.711cm2),
Tref is the reference time (10min),s(600s)
T is the predetermined measurement time or the average of each measurement time, s
L is the predetermined measured distance of piston movement or the average of each measured distance, cm
In order to make the value of D=MFR/MVR more accurate, it is recommended that each sample should be measured three times consecutively, and the VALUE of MFR/MVR should be calculated separately.
Post time: May-19-2022