Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
5% and 50% temperature-induced mass loss of samples of materials forming the HSC composite
| No. | Tested sample | Parameter | Before ageing | Accelerated ageing 63 days | Accelerated ageing 129 days | Accelerated ageing 194 days |
|---|---|---|---|---|---|---|
| 1 | Silicone | T5 [°C] | 272±8 | 274±9 | 282±8 | 293±9 |
| 3 | PU foam | T5 [°C] | 262±7 | 266±8 | 268±7 | 265±7 |
| 4 | T50 [°C] | 334±9 | 337±8 | 355±10 | 355±9 | |
| 5 | Adhesive film | T5 [°C] | 221±6 | 220±8 | 221±7 | 222±8 |
| 6 | T50 [°C] | 414±12 | 413±11 | 412±11 | 414±10 |
Results of physico-mechanical tests
| No. | Sample | Parameter | Methodology | Initial | Accelerated ageing 63 days | Accelerated ageing 129 days | Accelerated ageing 194 days |
|---|---|---|---|---|---|---|---|
| 1 | Silicone | Density [g/cm3] | PBCH-09/2017 | 1.09±0.04 | 1.11±0.01 | 1.12±0.01 | 1.10±0.02 |
| 2 | Hardness [ShA] | PN-EN ISO 868:2005 | 21.0±1.0 | 21.0±1.0 | 21.0±1.0 | 23.0±1.0 | |
| 3 | Tensile strength [MPa] | PN-ISO 37:2007/AC1:2008 | 2.1±0.1 | 2.2±0.1 | 2.2±0.1 | 2.4±0.3 | |
| 4 | PU foam | Density [g/cm3] | PBCH-09/2017 | 0.17±0.03 | 0.19±0.02 | 0.18±0.01 | 0.19±0.02 |
| 5 | Hardness [ShA] | PN-EN ISO 868:2005 | 2.0±0.5 | 2.0±0.5 | 2.0±0.5 | 1.8±0.4 | |
| 6 | Tensile strength [MPa] | ISO 1798:2001 | 446±29 | 436±27 | 419±32 | 407±31 | |
| 7 | Self-adhesive film | Max. stretching force [N] | PN-EN ISO 13934-1:2013-07 | 123±3 | 131±3 | 140±3 | 146±3 |
| 8 | Relative elongation at max. force [%] | PN-EN ISO 13934-1:2013-07 | 15.0±0.5 | 17.3±0.5 | 18.9±0.5 | 20.4±0.5 | |
| 9 | Adhesion strength [N/50 mm] | PN-EN ISO 2411:2017-11 | 1.14±0.13 | 1.37±0.23 | 1.62±0.31 | 1.81±0.35 |
Resistance to fragmentation of HSC composites before and after accelerated aging processes and after fatigue tests
| No. | Tested sample | Average value of V50 [m/s] | D [m/s] |
|---|---|---|---|
| 1 | HSC initial | 1240 | 36 |
| 2 | HSC aged by 63 days | 1221 | 38 |
| 3 | HSC aged by 129 days | 1235 | 37 |
| 4 | HSC aged by 194 days | 1246 | 35 |
| 5 | HSC fatigue test 9 360 cycles | 1250 | 37 |
| 6 | HSC fatigue test 18 720 cycles | 1253 | 39 |
| 7 | HSC fatigue test 28 080 cycles | 1259 | 37 |