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Determination of Melt volume rate (MVR)

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Melt Volume Rate (MVR) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the volume of polymer, in cm³, flowing in ten minutes through a capillary at a prescribed temperature by a pressure applied.
Melt volume rate is an indirect measure of molecular weight, with high melt volume rate corresponding to low molecular weight. At the same time, melt volume rate is a measure of the ability of the material's melt to flow under pressure. Melt volume rate is inversely proportional to viscosity of the melt at the conditions of the test.
The test method is described in ISO 1133 and is similar to ASTM D1238.
Please include information on the physical state (e.g. powder, pellets,...) and chemical nature (e.g. PP, PE, PET, PA,..) of your polymer with your order.

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    Matrix: Solid
    Solid Matrix: Plastics