UW-Madison polymer processing (EPD650): lesson 4, part 3.

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  • Опубліковано 21 гру 2024

КОМЕНТАРІ • 4

  • @andrewmountianou2697
    @andrewmountianou2697 5 місяців тому

    Awesome video once again!
    Is there an easy explanation how Trouton viscosity for LDPE is lower? I would assume it's higher due to potential entanglements from the branches.

    • @drbartsworldofchemeng
      @drbartsworldofchemeng  5 місяців тому +1

      @andrewmountianou2697 thank you very much! Yes, it's all about branching an the subsequent entanglements that result! More entanglement results so higher strain hardening!

    • @andrewmountianou2697
      @andrewmountianou2697 5 місяців тому

      @@drbartsworldofchemeng Thanks but why Trouton predicts a lower viscosity for low density?

    • @andrewmountianou2697
      @andrewmountianou2697 5 місяців тому

      I got it, these where shear viscosities multiplied by a constant the T ration, not a real prediction.