Significance Of Measuring Melt Flow Rate Of Thermoplastics

Significance Of Measuring Melt Flow Rate Of Thermoplastics

Measuring the Melt Flow Rate of Thermoplastics is the basic property that explains the viscosity, thickness or quality of the plastics. To determine the quality of any type of plastics, it is essential to measure the MFR of thermoplastics. This can be done correctly with the help of best quality of testing machine i.e. MFI Tester. MFR is the measurement of easiness of flow of molten plastics that shows distinctive index for quality control of thermoplastics. This is originally known as the MFI for polyethylene. This is expressed in grams per 10 minutes and denoted and melt volume rate of thermoplastics, When the melt volume rate is multiplied by the density of the material in its molten state offers melt flow rate of thermoplastics.

How does the instrument work?

Usually, Melt Flow Index Tester is easy to use and compact devices. The major principle of the device is that the thermoplastics are converted in the fluid form by heating the samples so that it can flow out of the capillary tube easily. Now piston is loaded with the weight to create extrusion inside the barrel and provided with the standard condition of load and temperature according to the type of the material.

Why is it necessary to Perform MFI test?


MVR or MFR is used to control the quality of production by performing the tests in laboratories. The basic procedure is depended on the weighing, cutting the timing of the material that directly value the melt flow rate of thermoplastics. It is necessary to measure the MFR of thermoplastics to measure the shear stress, molecular mass according to the distribution of molecular weight.

Presto Stantest offers the best quality of testing instruments for the testing laboratories of plastic industries for quality control. The testing instruments are manufactured on the basis of standard test methods that are provided by various standardization authorities. To know in detail about any testing instrument, visit: