4666COMP - EMA 4666C POLYMER PROCESSING LABORATORY...

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EMA 4666C POLYMER PROCESSING LABORATORY EXPERIMENT 2 - COMPRESSION MOLDING PURPOSE: To learn how mechanical properties are effected by orientation induced during processing MATERIALS: 10 gram of low density polyethylene 10 gram of high density polyethylene 2L PETP soda bottle (2) Mold release (aerosol) Polished steel plates Brass shim stock EQUIPMENT: Carver hydraulic press (20 kg) w/ heated platens Thermocouple Heavy duty pliers 50 ml beaker or equivalent container Punch die for ASTM D-638 dogbone samples Instron 1122 Tensile tester or equivalent Caliper Electronic balance Personal computer Razor blade or scissors Thermal protective gloves (high temperature) Safety glasses PROCEDURE: 1. Place the brass mold on the lower polished plate which should be position in the center of the lower platen. Place the second plate on the top of the brass mold. Close the platens to within a few millimeters. This will help heat the plates uniformly. 2.
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4666COMP - EMA 4666C POLYMER PROCESSING LABORATORY...

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