Processing of Thermoplastic Polyurethanes

The techniques available for processing TPUs are injection moulding, extrusion, calendering and solution fabrication. Usually speciality grades 

Material dried for 2 h at SOX in hot-air circulatory drier or user as received in polythene bags 

Screw Regularly increasing root diameter to metering section 

Wire mesh strainers 20-50 mesh Cylinder zone temperatures 

The recommended screw design is one having three zones of approximately equal length. Screws with sharp transition zones are not recommended. 

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