1 Materials for Blown Film: Polymers. Additives.
2 Polymer Rheology: Basic Concepts. Variables Influencing Viscosity. Rheology in Blown Film Extrusion
3 Extrusion Overview: Extruder Hardware Systems. Inside the Extruder. Extrusion Functional Zones.
4 Hardware for Blown Film: Upstream Components. Grooved Feed Throat. Screws for Blown Film Extrusion. Blown Film Dies. Bubble Geometry. Bubble Cooling. Bubble Stabilization. Collapsing Frames. Haul-off. Winders. Film Treatment. Line Control.
5 Processing: Process Variables vs. Bubble Geometry. Characteristic Bubble Ratios. Process/Structure/Property Relationships. Double Bubble Processing.
6 Coextrusion: Interfacial Instabilities. Product Applications.
7 Film Properties: Tensile Strength (ASTM D882). Elongation (ASTM D882). Tear Strength (ASTM D1004, ASTM D1922, and D1938). Impact Resistance (ASTM D1709, D3420, and D4272). Blocking Load (ASTM D3354) and Coefficient of Friction (ASTM D1894). Gel (Fisheye) Count (ASTM D3351 and D3596). Low Temperature Brittleness (ASTM D1790). Gloss (ASTM D2457). Transparency (ASTM D1746). Haze (ASTM D1003). Density (ASTM D1505). Melt Index (ASTM D1238). Viscosity by Capillary Rheometry (ASTM D3835).
8 Troubleshooting: Extruder Problems. Film Problems.
9 Appendices: The Blown FIlm Extrusion Simulator. Useful Equations.