Table 1 Parameters of the ACAR spectra calculated for cnts, PTFE and the PTFE + 10 wt% CNTs composite: SV is the fraction of positrons annihilated in free volumes in PTFE with average radii RV; SB, SM are the fractions of positrons annihilated with bound electrons in atoms and in nanopores, respectively, and RB, RM are the radii of the corresponding Spatial distributions of electron density in CNTs and polymer.
Samples | SV, % | RV, nm | SM, % | RM, nm | SB, % | RB, nm |
---|---|---|---|---|---|---|
CNT | - | - | 51.01 | 0.132 | 35.30 | 0.054 |
PTFE | 4.10 | 1.10 | 62.33 | 0.119 | 33.57 | 0.055 |
PTFE + 10 wt% CNTs | 3.13 | 5.14 | 33.02 | 0.143 | 41.76 | 0.059 |