PET Processing - Extrusion

Zone overview hereIn extrusion, most PET is processed into sheet for food packaging applications. The PET sheet is subsquently thermoformed--in some cases in line with the extrusion process--into products such as drinking cups, trays, clam shell containers and the like. Industrial applications for PET include point of purchase signs, display fixures and glazing. Gylcol-modified PET (PETG) is commonly used in sheet structures used to package medical devices because it can stand up to gamma irradiation.

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Under One Roof: Innovative Recycler Closes the Loop

rPlanet Earth looks to disrupt the plastics recycling industry by creating a truly sustainable, closed-loop system for recycling and reuse of post-consumer plastics, with reclaim, sheet extrusion, thermoforming and preform making all in the same plant.

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PART ONE How to Determine Viscosity Data Using a Slit-Die Viscometer

Using a slit-die viscometer connected to a lab extruder can generate accurate data on melt viscosity at various shear rates and temperatures, a useful QC tool in processing.