Abstract
Folding endurance is very important in terms of the indication for durability and performance of plastics and papers. The objective of this research is to study the performance of polypropylene hinges with the influence hot air in the fabricated chamber and high humidity condition. The performance of this sample was analysed by using folding endurance tester with hot air chamber, adopting the Design of Experiment L9 (34) Taguchi Method for the selected factors which are temperature, relative humidity, breaking time and motor speed. All of these factors were selected with a constant force. Based on the findings, the best combination of parameters which signify the performance of folding endurance test in humidity environment is 70°C for temperature, 60 N for relative humidity, 2 days of breaking time and 850 rpm for motor speed. As for hot air environment, the best setting is 70°C for temperature, 55 N for relative humidity, 3 days of breaking time and 700 rpm for motor speed. For Signal to Noise ratio, the result showed that the temperature was the most influential factor for humidity effects and hot air environment, whereby the Signal to Noise ratio value obtained for the humidity and hot air environment are 129.5 dBi and 130.5 dBi respectively. The conclusion of this research is the polypropylene hinges have performed better with hot air environment as compared with higher humidity environment condition.
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