This page (revision-285) was last changed on 14-Sep-2022 10:00 by Leonid

This page was created on 18-Feb-2022 08:53 by Leonid

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At line 55 changed one line
__MFI:__ This property gives an indication of the fluidity of the molten polymer. It is an important value for the prediction of processing behaviour. For this reason, this is one of the main properties used in selection of materials. The MFI could be seen as a measured viscosity at a single temperature and shear rate. It is often measured at a specified temperature and weight. However, due to the fact that the viscosity of polymers is shear-dependent, the MFI could also be measured at multiple weights (shear rates).
__MFI:__ This property gives an indication of the fluidity of the molten polymer. It is an important value for the prediction of processing behaviour. Thus, this is one of the main properties used in material selection. The MFI could be seen as a measured viscosity at a single temperature and shear rate. It is often measured at a specified temperature and weight. However, due to the fact that the viscosity of polymers is shear-dependent, the MFI could also be measured at multiple weights (shear rates).
At line 57 changed one line
__Impact strength__ It denotes the energy needed for the fracture of a material. The greater the value, the more resistant the material is to breaking upon impact. It can be measured via Charpy or Izod methods. Samples could be measured notched or unnotched. Notched values are lower than unnotched values due to the limitation of energy dissipation throughout the sample. Furthermore, the impact strength can be measured at different temperatures to predict impact behavior in different environments.
__Impact strength:__ It denotes the energy needed for the fracture of a material. The greater the value, the more resistant the material is to breaking upon impact. It can be measured via Charpy or Izod methods. Samples could be measured notched or unnotched. Notched values are lower than unnotched values due to the limitation of energy dissipation throughout the sample. Furthermore, the impact strength can be measured at different temperatures to predict impact behavior in different environments.
This page (revision-285) was last changed on 14-Sep-2022 10:00 by LeonidTop