Plastics-Extrusion - EMA 4161C PHYSICAL PROPERTIES OF POLYMERS PLASTICS EXTRUSION LABORATORY PURPOSE To get"hands on experience on the extrusion

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EMA 4161C PHYSICAL PROPERTIES OF POLYMERS PLASTICS EXTRUSION LABORATORY PURPOSE: To get "hands on" experience on the extrusion process and learn how the extruder works. Also, to learn how processing parameters and additives affect the thermomechanical properties of thermoplastic polymers. MATERIALS: ExxonMobile injection molding controlled rheology polyethylene with antistatic and nucleating agents in pelletized form: EQUIPMENT: 1" screw KL-100 extruder, take-up equipment, stop-watch, balance, safety glasses, and heat resistant gloves PROCEDURE: 1. Heat the barrel and die at recommended temperatures (Table 1). Allow the barrel to "soak" at this temperature for at least ten minutes. Table 1. Suggested temperature profile for the extruder. Sample Die 2 Temp. Die 1 Temp. Zone 3 Temp. Zone 2 Temp. Zone 1 Temp. HLN-120-01 350°F 350°F 350°F 320°F 270°F HLN-200 350°F 350°F 400°F 320°F 270°F HLN-350 350°F 350°F 450°F 320°F 270°F 2. Make sure the motor is set to zero before turning on. Slowly turn up the rpm to the lowest
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This note was uploaded on 07/17/2011 for the course EMA 4161c taught by Professor Staf during the Fall '10 term at University of Florida.

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Plastics-Extrusion - EMA 4161C PHYSICAL PROPERTIES OF POLYMERS PLASTICS EXTRUSION LABORATORY PURPOSE To get"hands on experience on the extrusion

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