Research Article
Characteristics of Bulletproof Vests Made from COPEFB Fiber: Implications on Mechanical, Electrical, and Physical Resistance
Table 5
Yarn dielectric constant.
| | No | Sample | d(m) | A(m2) | C(F) | ɛingredient (F/m) | ɛair (F/m) | k | k |
| | 1 | D1 (1 mm) | 0.00048 | 1.38E − 05 | 8E − 13 | 2.77E − 11 | 8.85E − 12 | 3.1 | 3.9 ± 1.03 | | 0.00048 | 1.38E − 05 | 9E − 13 | 3.12E − 11 | 8.85E − 12 | 3.5 | | 0.00048 | 1.38E − 05 | 1.3E − 12 | 4.51E − 11 | 8.85E − 12 | 5.1 |
| | 2 | D2 (3 mm) | 0.00094 | 3.32E − 05 | 1.9E − 12 | 5.41E − 11 | 8.85E − 12 | 6.1 | 6.4 ± 0.32 | | 0.00094 | 3.32E − 05 | 2.1E − 12 | 5.99E − 11 | 8.85E − 12 | 6.8 | | 0.00094 | 3.32E − 05 | 2E − 12 | 5.70E − 11 | 8.85E − 12 | 6.4 |
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Source: data of this research.
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