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  2. Melt flow index - Wikipedia

    en.wikipedia.org/wiki/Melt_flow_index

    The Melt Flow Index (MFI) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescribed temperatures.

  3. Differential scanning calorimetry - Wikipedia

    en.wikipedia.org/wiki/Differential_scanning...

    The technique is widely used across a range of applications, both as a routine quality test and as a research tool. The equipment is easy to calibrate, using low melting indium at 156.5985 °C for example, and is a rapid and reliable method of thermal analysis.

  4. MFI - Wikipedia

    en.wikipedia.org/wiki/MFI

    Melt flow index, a measure of the ease of flow of the melt of a thermoplastic polymer; Micromechanical Flying Insect, ornithopter robot that flies based on insect flight technique; Mikoyan Project 1.44, MiG-MFI, Russian fighter aircraft project (cancelled) Minimum Fisher information, variational principle in information theory

  5. Polypropylene - Wikipedia

    en.wikipedia.org/wiki/Polypropylene

    The melt flow rate (MFR) or melt flow index (MFI) is a measure of molecular weight of polypropylene. The measure helps to determine how easily the molten raw material will flow during processing. Polypropylene with higher MFR will fill the plastic mold more easily during the injection or blow-molding production process.

  6. Linear low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Linear_low-density...

    LDPE and LLDPE have unique rheological or melt flow properties. LLDPE is less shear sensitive because of its narrower molecular weight distribution and shorter chain branching. During a shearing process, such as extrusion, LLDPE remains more viscous and, therefore, harder to process than an LDPE of equivalent melt index.

  7. Melting-point apparatus - Wikipedia

    en.wikipedia.org/wiki/Melting-point_apparatus

    A Fisher–Johns apparatus. A melting-point apparatus is a scientific instrument used to determine the melting point of a substance. Some types of melting-point apparatuses include the Thiele tube, Fisher-Johns apparatus, Gallenkamp (Electronic) melting-point apparatus and automatic melting-point apparatus.