OPTIMAL COMPOSITION OF MIXED MATERIAL FOR THE THERMOFORMING PROCESS
Abstract: This research was analyzed the optimization of five parameters on thermoforming process namely; ratio of resin aluminum talcum (RAT), temperature and setting time by statistical method. The optimized ratio gave a contents of 50 grams resin, 24 grams aluminum, and 26 grams talcum, temperature between 70-90 degree Celsius and a setting time 7 hours. The results support the predicted value, where the optimal ratio is the maximum hardness is 86.5 Shore D. The RAT-composition material can save cost of 30% when comparing with other compositions on thermoforming process.
Key words: Resin aluminum talcum (RAT), hardness, thermoforming process, statistical analysis.
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