Experimental Investigation of Process Specific Material Behavior of Thermoplastic Hybrid Yarn Textiles

For the manufacturing of complex function integrative lightweight components, the pressing process specific material behavior of thermoplastic hybrid yarn textiles plays a significant role. A fundamental knowledge of the compression and heating behavior of the textile preforms is required for an efficient development of adapted tool systems. This paper focuses on the dependency of compression behavior and thermal conductivity of the glass/ polypropylene textile on varied pressure and temperature values. To analyze the thermal conductivity, the Hot Disc method is used. In general, positive trends for increasing applied pressure and temperature values on the thermal conductivity are obtained. For the manufacturing of thermoplastic hybrid yarn textiles, the pressing process specific material behavior plays a significant role. The changes in thermal conductivity have to be analyzed for the thermal simulation and design of the mold system. This paper focuses on the dependency of thermal conductivity in axial and radial direction of the glass/polypropylene textile under process conditions.