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  • network theory  (1)
  • polymerprocessing  (1)
  • 1
    Digitale Medien
    Digitale Medien
    A network theory for the thermal conductivity of an amorphous polymeric material (1989)
    Springer
    Rheologica acta 28 (1989), S. 257-266 
    Details
    ISSN: 1435-1528
    Schlagwort(e): Thermalconductivity ; anisotropy ; network theory ; polymer ; rubber
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: Abstract A model to relate the thermal conductivity tensor to the deformation of an amorphous polymeric material above the glass transition temperature is presented. The basis of the model is formed by the transient network theory for polymer melts. With this theory it is possible to calculate the average orientation of the macromolecular segments as a function of the history of the deformation. Combined with an expression which relates the thermal conductivity to the orientation of the molecules, this provides us with the information needed to calculate the heat conduction tensor. Despite the fact that the simplest possible network model is chosen, there is good agreement with the sparse, experimental results.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01329335
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  • 2
    Digitale Medien
    Digitale Medien
    Anisotropic conduction of heat in a flowing polymeric material (1990)
    Springer
    Rheologica acta 29 (1990), S. 580-587 
    Details
    ISSN: 1435-1528
    Schlagwort(e): Anisotropy ; thermalconductivity ; polymerprocessing ; orientation ; viscousheating
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: Abstract In this paper a theory is presented which relates the thermal conductivity tensor of an amorphous polymeric material to the history of deformation of the material. The basis of the theory is formed by the network theory for polymeric materials. It will be shown that the results obtained here are in good agreement with experimental results on rubber. The effect of anisotropic heat conduction on the flow of a polymeric material will be demonstrated by the simple example of viscous heating in shear flow.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01329304
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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