Table 1.
Summary of main characteristic parameters of resistive mechanical sensors based on different fillers and elastic substrates.
| Active fillers | Substrate | Sensitivity/GF | Response time | Stretchability/detection range | Reference |
|---|---|---|---|---|---|
| CB | Ecoflex | 1.62 ∼ 3.37 | / | 50%∼500% | [10] |
| CB and NaCl | TPU | 5.54 kPa−1 | / | 10 Pa ∼ 800 kPa | [11] |
| SWCNT | PDMS | 20.1 at 100% strain | / | 10%∼100% | [18] |
| MWCNT | PDMS | 4.3 | / | 0 ∼ 30% | [17] |
| MWCNT | TPU | 1.5–3 | / | 0 ∼ 50% | [47] |
| RGO | TPU | 10% strain: 11 100% strain:79 | 200 ms | 0 ∼ 200% | [21] |
| RGO | PDMS | 25.1 kPa –1 | / | 0 ∼ 2.6 kPa | [48] |
| Graphene | PDMS | 6 ∼ 67 | / | 50％∼60％ | [22] |
| Graphene | PDMS | 1.2 kPa−1 | / | 5 Pa ∼ 25 kPa | [49] |
| metal films | Polymer nanofibers | 2 ∼ 200 | / | / | [24] |
| RGO and AgNWs | sponge | S = 0.016 kPa−1; GF = 1.5 | <54 ms | 0 ∼ 40 kPa; 0 ∼ 60% | [29] |
| GNPs and AgNPs | PU | GF = 21.2 at 50% strain; 30.2 at 100% strain; 48.2 at 160% strain | <72 ms | 0 ∼ 160% | [30] |
| ZnO NWs, RGO and CNTs | PET | 7.64 | / | 0 ∼ 40% | [36] |
| Ti3C2Tx | Copolyamide | 4.5 | / | / | [38] |
| EGaIn | Silicone (Dragon Skin 30) | 2.5 | / | 0 ∼ 100% | [50] |
| HEC/SPI/PANI | sponge | −0.29 | <140 ms | 0–345.25 kPa | [51] |