MatIQ Advisor

Application 3

Manufacturing processes: extrusion and blow molding

The starting point: Material changes and new geometries slow down the process

A new material, a changed profile, a different film, or a new blow-molded part often raises questions: Is the material suitable at all? Where is the right process window? Will the process run stably? For extrusion and blow molding, specific rheological properties are decisive – yet they are often incomplete or missing in common material databases.

The solution: MatIQ and StrömungsRaum®

You start with what you have: polymer classification, approximate rheology parameters, and the relevant temperature window – optionally supplemented by line or tool parameters. Based on this, the system finds the best-matching materials from the NETZSCH database, with selection focused on rheological properties.

The resulting material card focuses on what really matters for extrusion and blow molding: isothermal models and extensional viscosity. PVT parameters are included where relevant for the application. Each card receives a quality label that transparently shows which predictions are already reliable – and where targeted follow-up measurements should be used to maximize process security.

The system also suggests alternative material groups – evaluated by carbon footprint, price, and availability. This expands your decision basis without additional research effort, where it makes sense.

3D flow simulation showing velocity distribution in an extrusion or blow molding die

Your benefits at a glance

  • Fast assessment of material suitability – a sound basis from virtual material testing that secures decisions before costly process trials begin
  • Process-relevant rheology – focus on the properties that really count for extrusion and blow molding
  • Less measurement effort, more targeted investment – a clear must-have vs. optional logic shows where follow-up measurements add real value
  • Well-founded process window evaluation – better decisions before line or tool are stressed
  • Expanded material selection – alternative grades including carbon footprint, price, and availability at a glance
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