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Studies on the Effect of Accelerated Ageing on Structural, Physico-Mechanical and Ballistic Properties of Hybrid Silicone-Ceramics Composites

Katarzyna Kośla

Katarzyna Kośla

Institute of Security Technologies “MORATEX”Lodz, Poland
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Kośla, Katarzyna
, 
Edyta Chmal-Fudali

Edyta Chmal-Fudali

Institute of Security Technologies “MORATEX”Lodz, Poland
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Chmal-Fudali, Edyta
 y 
Paweł Kubiak

Paweł Kubiak

Institute of Security Technologies “MORATEX”Lodz, Poland
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Kubiak, Paweł
  
21 oct 2024
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Categoría del artículo: Research Article
Publicado en línea: 21 oct 2024
Páginas: 31 - 41
DOI: https://doi.org/10.2478/ftee-2024-0030
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© 2024 Katarzyna Kośla et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1.

Scheme with the composition of the HSC composite
Scheme with the composition of the HSC composite

Fig. 2.

FT-IR spectra: a) silicone, b) PU foam, c) self-adhesive film, before and after accelerated ageing process
FT-IR spectra: a) silicone, b) PU foam, c) self-adhesive film, before and after accelerated ageing process

Fig. 3.

SEM images obtained for a) non-aged silicone, b) silicone after accelerated aging processes, c) non-aged PU foam, d) PU foam after accelerated aging processes
SEM images obtained for a) non-aged silicone, b) silicone after accelerated aging processes, c) non-aged PU foam, d) PU foam after accelerated aging processes

Fig. 4.

Thermogravimetric curves showing the mass changes of silicone sample (a), PU foam sample (b) and self-adhesive film sample (c) – unaged and subjected to accelerated aging processes – with increasing temperature
Thermogravimetric curves showing the mass changes of silicone sample (a), PU foam sample (b) and self-adhesive film sample (c) – unaged and subjected to accelerated aging processes – with increasing temperature

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
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Negocios y Economía, Gestión empresarial, Informática de negocios, Gestión de proceso, Química Industrial, Celulosa, papel y textiles, Ciencia y tecnología de polímeros, Ciencia de los materiales, Biomateriales y materiales naturales
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