Table 1.
Theoretical and experimental density and a crystallinity degree of PCM.
| Content of CF, wt % | Theoretical Density, g/cm3 | Experimental Density, g/cm3 | XRD, % | ||||
|---|---|---|---|---|---|---|---|
| PTFE/CF | PTFE/CF/Kl | PTFE/CF/Vl | PTFE/CF | PTFE/CF | PTFE/CF/Kl | PTFE/CF/Vl | |
| 0 | 2.20 | 2.15 ± 0.01 | 2.16 ± 0.01 | 2.16 ± 0.01 | 63 ± 1 | 65 ± 1 | 64 ± 1 |
| 1 | 2.19 | 2.15 ± 0.01 | 2.16 ± 0.01 | 2.15 ± 0.01 | 64 ± 1 | 67 ± 1 | 66 ± 1 |
| 3 | 2.18 | 2.13 ± 0.01 | 2.14 ± 0.01 | 2.13 ± 0.01 | 68 ± 1 | 69 ± 1 | 69 ± 1 |
| 5 | 2.16 | 2.11 ± 0.01 | 2.11 ± 0.01 | 2.10 ± 0.01 | 69 ± 1 | 72 ± 1 | 71 ± 1 |
| 8 | 2.13 | 2.09 ± 0.01 | 2.08 ± 0.01 | 2.06 ± 0.01 | 71 ± 1 | 74 ± 1 | 73 ± 1 |
| 10 | 2.11 | 2.06 ± 0.01 | 2.06 ± 0.01 | 2.03 ± 0.01 | 73 ± 1 | 74 ± 1 | 74 ± 1 |
Note: CF—carbon fiber; Kl—kaolinite; Vl—vermiculite; Vl and Kl contents are 1 wt %.