Biomedical Engineering Reference
In-Depth Information
nan9-pan01 1.0 kV 11.3 mm
×
15.0 k SE(M) 5/31/02
3.00 um
FIGURE 4.25
Activated nano-PAN at a high-pH condition (1
N
NaOH) (close-up).
Lithium hydroxide
1.6
0.5 N solutions
0.5 N solutions
0.5 N solutions
1 N solutions
1 N solutions
1 N solutions
2 N solutions
2 N solutions
2 N solutions
1.4
1.2
1
0.8
0.6
0.4
0.2
0
1
2
3
4
5
Measurement #
FIGURE 4.26
PAN fiber length change (lithium hydroxide and HCl).
KOH
1.4
0.5 N solutions
0.5 N solutions
0.5 N solutions
1 N solutions
1 N solutions
1 N solutions
2 N solutions
2 N solutions
2 N solutions
1.2
1
0.8
0.6
0.4
0.2
0
1
2
3
4
5
Measurement #
FIGURE 4.27
PAN fiber length change (potassium hydroxide and HCl).
