A Study on the Influence of Hot Press Forming Process Parameters on Flexural Property of Glass/PP Based Thermoplastic Composites Using Box-Behnken Experimental Design

Table 3

Three-factor Box-Behnken design experiment with predicted response of dependent variable (flexural strength in Mpa).

Runs	Factors						Response
	Coded			Actual			Flexural strength in Mpa
	X1	X2	X3	X1	X2	X3
1	0	0	0	15	220	3	55.58
2	−1	−1	0	10	200	3	60.33
3	1	−1	0	20	200	3	56.6
4	−1	0	1	10	220	4	89.34
5	0	0	0	15	220	3	55.58
6	0	0	0	15	220	3	55.58
7	0	1	−1	15	240	2	45.52
8	0	−1	−1	15	200	2	69.4
9	−1	1	0	10	240	3	65.42
10	1	1	0	20	240	3	42.03
11	−1	0	−1	10	220	2	79.43
12	0	−1	1	15	200	4	55.03
13	1	0	−1	20	220	2	65.38
14	1	0	1	20	220	4	79.66
15	0	1	1	15	240	4	57.7