Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- en:materialdaten:reine_polymere_uebersicht:thermodynamische_daten [2026/01/07 21:52] – [Specific Enthalpy] neelest
+++ en:materialdaten:reine_polymere_uebersicht:thermodynamische_daten [2026/01/07 21:55] (aktuell) – [Thermodynamic Data] neelest
@@ Zeile 1: / Zeile 1: @@
 ====== Thermodynamic Data ======
-  *[[en:Materialdaten:Reine Polymere Übersicht:Thermodynamische Daten:Thermodyanmische Datenverarbeitung]]
-  *[[en:Materialdaten:Reine Polymere Übersicht:Thermodynamische Daten:Spezifische Wärmekapazität]]
-  *[[en:Materialdaten:Reine Polymere Übersicht:Thermodynamische Daten:Spezifische Enthalpie]]
-  *[[en:Materialdaten:Reine Polymere Übersicht:Thermodynamische Daten:Wärmeleitfähigkeit]]
 ===== Thermodynamic Data =====
@@ Zeile 71: / Zeile 64: @@
   * semi-crystalline thermoplastics: $\Delta h = \Delta h_F + \Delta h_A$
   * amorphous thermoplastics: $\Delta h = \Delta h_F$
+===== Thermal Conductivity =====
+**Path:** Main menu > Material > New polymer... Tab: Thermodynamic Data\\
+{{:materialdaten:reine_polymere_uebersicht:iconmaterialnew-material.ico?nolink&60x60 |}}
+\\
+\\
+\\
+**Path:** Main menu > Material > Edit material (file)... Tab: Thermodynamic Data\\
+{{:materialdaten:reine_polymere_uebersicht:iconmaterialedit-material.ico?nolink&60x60 |}}
+\\
+\\
+\\
+{{ :en:materialdaten:reine_polymere_uebersicht:thermodynamische_daten:en_sigma150_dlg_materialdaten_002.png?nolink |}}
+In the case of thermal conductivity, it is necessary to distinguish between steady-state and non-steady-state temperature fields. With steady-state temperature fields, only the thermal conductivity l is available as a material value. This is temperature-dependent and higher for semi-crystalline materials than for amorphous ones, see figure.
+Thermal conductivity:     $\lambda(T) = \lambda_0 + \lambda_m \cdot T$
+{{ :en:materialdaten:reine_polymere_uebersicht:thermodynamische_daten:en_sigma150_dlg_materialdaten_005.svg?nolink&700 |}}
+The value  $\lambda_0$ which has to be entered represents the value obtained from the straight line that describes the molten range at 0 degrees. The gradient for the thermal conductivity can also be negative and must then be entered with a negative sign. The effective thermal conductivity of the solid is required for the melting calculation. For purposes of determining this value, it is necessary to enter the thermal conductivity of the solid. The melting point $T_{k,g}$ must also be entered on this mask. In the case of semi-crystalline materials, this temperature is interpreted as the crystalline melting point $T_k$ and in the case of amorphous polymers, as the glass transition point $T_g$.