Response Surface Modelling of Electrosprayed Polyacrylonitrile Nanoparticle Size

Table 2

Uncoded variables for experimental and test data with corresponding responses.

Number	Voltage   (kV)	Concentration   (% w/w)	Feed rate   (mL/h)	Needle diameter   (mm)	Mean particle size   (nm)	Standard deviation   (nm)
1	10	1	0.263	1	190.24	29.76
2	10	1	0.263	0.8	172.61	26.11
3	10	1	0.263	0.6	157.89	24.43
4	10	1	0.789	1	205.59	28.42
5	10	1	0.789	0.8	201.63	30.32
6	10	1	0.789	0.6	180.62	30.74
7	10	1	1.315	1	216.66	31.94
8	10	1	1.315	0.8	198.08	30.05
9	10	1	1.315	0.6	185.75	31.77
10	10	2	0.263	1	200.2	31.54
11	10	2	0.263	0.8	184.26	28.14
12	10	2	0.263	0.6	179.89	29.64
13	10	2	0.789	1	227.99	36.64
14	10	2	0.789	0.8	208.58	29.58
15	10	2	0.789	0.6	196.21	28.06
16	10	2	1.315	1	223.26	34.2
17	10	2	1.315	0.8	207.55	31.7
18	10	2	1.315	0.6	198.68	30.89
19	10	3	0.263	1	153.72	19.26
20	10	3	0.263	0.8	150.7	18.11
21	10	3	0.263	0.6	142	24.25
22	10	3	0.789	1	192.73	22.66
23	10	3	0.789	0.8	175.5	25.41
24	10	3	0.789	0.6	155.67	22.55
25	10	3	1.315	1	183.05	24.18
26	10	3	1.315	0.8	169.37	28.68
27	10	3	1.315	0.6	162.08	23.35
28	12	1	0.263	1	170.66	25.24
29	12	1	0.263	0.8	165.22	30.33
30	12	1	0.263	0.6	138.01	24.96
31	12	1	0.789	1	202.16	28.4
32	12	1	0.789	0.8	185.58	36.26
33	12	1	0.789	0.6	178.41	30.04
34	12	1	1.315	1	207.8	27.76
35	12	1	1.315	0.8	192.2	34.24
36	12	1	1.315	0.6	184.85	31.73
37	12	2	0.263	1	171.72	26.39
38	12	2	0.263	0.8	160.35	25.68
39	12	2	0.263	0.6	156.23	22.78
40	12	2	0.789	1	205.23	27.74
41	12	2	0.789	0.8	190.16	27.68
42	12	2	0.789	0.6	183.81	22.4
43	12	2	1.315	1	222.27	33.65
44	12	2	1.315	0.8	211.59	29.07
45	12	2	1.315	0.6	193.61	31.75
46	12	3	0.263	1	144.05	15.35
47	12	3	0.263	0.8	129.18	16.5
48	12	3	0.263	0.6	122.88	20.33
49	12	3	0.789	1	163.97	20.19
50	12	3	0.789	0.8	148.94	19.96
51	12	3	0.789	0.6	155.36	21.66
52	12	3	1.315	1	179.37	20.45
53	12	3	1.315	0.8	166.75	25.52
54	12	3	1.315	0.6	163.76	19.41
55	14	1	0.263	1	162.35	20.76
56	14	1	0.263	0.8	149.83	20.7
57	14	1	0.263	0.6	140.41	23.51
58	14	1	0.789	1	191.61	27.24
59	14	1	0.789	0.8	177.17	26.99
60	14	1	0.789	0.6	169.67	31.52
61	14	1	1.315	1	195.59	33.24
62	14	1	1.315	0.8	189.03	30.25
63	14	1	1.315	0.6	184.73	29.45
64	14	2	0.263	1	182.99	24.71
65	14	2	0.263	0.8	153.93	25.04
66	14	2	0.263	0.6	156.55	25.65
67	14	2	0.789	1	212.26	26.03
68	14	2	0.789	0.8	185.32	29.13
69	14	2	0.789	0.6	172.25	24.09
70	14	2	1.315	1	207.86	30.44
71	14	2	1.315	0.8	194.31	32.21
72	14	2	1.315	0.6	180.52	24.11
73	14	3	0.263	1	146.34	18.94
74	14	3	0.263	0.8	129.74	20.75
75	14	3	0.263	0.6	112.78	19.34
76	14	3	0.789	1	179.25	21.56
77	14	3	0.789	0.8	145.38	21.84
78	14	3	0.789	0.6	142.37	23.51
79	14	3	1.315	1	188.52	25.61
80	14	3	1.315	0.8	172.44	27.9
81	14	3	1.315	0.6	159.78	29.9