[34.] American Society for Testing Materials, ASTM D 1238: Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
. 13th ed., ASTM, 16 (2013).
ASTM D2639/D2639M-16, Standard Test Method for Plastic Properties of Coal by the Constant-Torque Gieseler Plastometer
, ASTM International, West Conshohocken, PA, 2016.
Melt flow index was measured by using an extrusion plastometer
(Tinius Olsen, Model MP 600, PA, USA) according to ASTM D 1238: standard test method for melt flow rates of thermoplastics by extrusion plastometer
Presier's Model 400 Plastometer
is used for the determination of plastic properties of coal by the Gieseler constant-torque method.
The two major MFI test standards are ASTM D1238 "Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
," and ISO 1133 "Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics." ASTM D1238 offers a "troubleshooting guide" in its appendix and the steps to consider below are based on it.
Stanmore, "Use of the parallel-plate plastometer
for the characterisation of viscous fluids with a yield stress," Journal of Non-Newtonian Fluid Mechanics, vol.
The MP1200 extrusion plastometer
uses three-zone temperature control to give increased levels of accuracy and thermal stability.
The P & J plastometer
is a device that measures the indentation of the 1/8" diameter ball into the surface of the rubber under a load of one kilogram.
allows operator to key in test temperature selection from 50 C to 400 C through the use of microprocessor, as well as other parameters.
The MFI of PLA and composites was determined using MP600 Extrusion Plastometer
(Tinius Olsen Horsham, PA) according to ASTM D 1238 standard at 190[degrees]C with a load of 2.16 kg.