Table A2.

Regression models derived from the DoE factorial design analysis.

Response	Regression model (A: Mould Temperature, B: Injection Speed, C: Back-Pressure, D: Melt Temperature and E: Holding Time
Young’s Modulus (E)	E = 1434 + 1.837A − 1.383B + 29.9C + 0.661D − 31.87E + 0.00450B × D + 0.0644B × E − 0.1464C × D + 0.1234D × E
Ultimate Tensile Strength (Su)	Su = 17.495 + 0.00056A − 0.001306B − 0.0170C − 0.01109D − 0.0977E + 0.000825D × E
Arithmetic Mean Deviation (Ra)	Ra = −3747 + 11.25A + 22.6B + 324C − 1.71B × C
Root Mean Deviation (Rq)	Rq = −4826 + 14.78A + 28.5B + 421C − 2.19B × C