Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor
Para-aramid materials such as Twaron<sup>®</sup> and Kevlar<sup>®</sup> are commonly used for ballistic-resistant body armor, which are designed to protect human life and health. For this reason, the materials from which body armor are made should be thoroughly investigated i...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/15/18/6492 |
| _version_ | 1811153729961852928 |
|---|---|
| author | Katarzyna Kośla Marcin Łandwijt Michał Miklas Marzena Fejdyś |
| author_facet | Katarzyna Kośla Marcin Łandwijt Michał Miklas Marzena Fejdyś |
| author_sort | Katarzyna Kośla |
| collection | DOAJ |
| description | Para-aramid materials such as Twaron<sup>®</sup> and Kevlar<sup>®</sup> are commonly used for ballistic-resistant body armor, which are designed to protect human life and health. For this reason, the materials from which body armor are made should be thoroughly investigated in the area of long-term reliability, particularly with regard to exposure to UV light, humidity and temperature, as these are known causes of degradation in commonly used ballistic materials. This research presents the durability of soft and hard ballistic inserts designed using para-aramid (Twaron<sup>®</sup>) materials. Para-aramid ballistic inserts not subjected to accelerated aging processes and also ones subjected to laboratory aging for 63, 129 and 194 days, which corresponded to 2, 4 and 6 years of aging in real conditions, were tested. The selected para-aramid inserts were verified in terms of ballistic and physico-mechanical properties as well as changes in chemical structure of the ballistic materials. Ballistic tests were carried out with the use of a 1.1 g FSP.22 fragment according to STANAG 2920. Changes in the microstructure of the para-aramid materials were evaluated using infrared spectroscopy and scanning electron microscopy. The obtained results indicate that despite the changes which took place at the molecular level in the Twaron<sup>®</sup> materials, accelerated aging processes do not affect the fragmentation resistance properties of ballistic inserts made of para-aramid materials. |
| first_indexed | 2024-03-09T23:16:33Z |
| format | Article |
| id | doaj.art-5858b15880034b918b5afedfb3a1491a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:16:33Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5858b15880034b918b5afedfb3a1491a2023-11-23T17:34:34ZengMDPI AGMaterials1996-19442022-09-011518649210.3390/ma15186492Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body ArmorKatarzyna Kośla0Marcin Łandwijt1Michał Miklas2Marzena Fejdyś3Institute of Security Technologies “MORATEX”, Marii Sklodowskiej-Curie 3 Street, 90-505 Lodz, PolandInstitute of Security Technologies “MORATEX”, Marii Sklodowskiej-Curie 3 Street, 90-505 Lodz, PolandInstitute of Security Technologies “MORATEX”, Marii Sklodowskiej-Curie 3 Street, 90-505 Lodz, PolandInstitute of Security Technologies “MORATEX”, Marii Sklodowskiej-Curie 3 Street, 90-505 Lodz, PolandPara-aramid materials such as Twaron<sup>®</sup> and Kevlar<sup>®</sup> are commonly used for ballistic-resistant body armor, which are designed to protect human life and health. For this reason, the materials from which body armor are made should be thoroughly investigated in the area of long-term reliability, particularly with regard to exposure to UV light, humidity and temperature, as these are known causes of degradation in commonly used ballistic materials. This research presents the durability of soft and hard ballistic inserts designed using para-aramid (Twaron<sup>®</sup>) materials. Para-aramid ballistic inserts not subjected to accelerated aging processes and also ones subjected to laboratory aging for 63, 129 and 194 days, which corresponded to 2, 4 and 6 years of aging in real conditions, were tested. The selected para-aramid inserts were verified in terms of ballistic and physico-mechanical properties as well as changes in chemical structure of the ballistic materials. Ballistic tests were carried out with the use of a 1.1 g FSP.22 fragment according to STANAG 2920. Changes in the microstructure of the para-aramid materials were evaluated using infrared spectroscopy and scanning electron microscopy. The obtained results indicate that despite the changes which took place at the molecular level in the Twaron<sup>®</sup> materials, accelerated aging processes do not affect the fragmentation resistance properties of ballistic inserts made of para-aramid materials.https://www.mdpi.com/1996-1944/15/18/6492accelerated ageingballistic insertspara-aramidfragment resistanceinfrared spectroscopythermogravimetry |
| spellingShingle | Katarzyna Kośla Marcin Łandwijt Michał Miklas Marzena Fejdyś Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor Materials accelerated ageing ballistic inserts para-aramid fragment resistance infrared spectroscopy thermogravimetry |
| title | Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor |
| title_full | Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor |
| title_fullStr | Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor |
| title_full_unstemmed | Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor |
| title_short | Influence of the Accelerated Aging Process on the Fragment-Resistant Properties of Para-Aramid Body Armor |
| title_sort | influence of the accelerated aging process on the fragment resistant properties of para aramid body armor |
| topic | accelerated ageing ballistic inserts para-aramid fragment resistance infrared spectroscopy thermogravimetry |
| url | https://www.mdpi.com/1996-1944/15/18/6492 |
| work_keys_str_mv | AT katarzynakosla influenceoftheacceleratedagingprocessonthefragmentresistantpropertiesofparaaramidbodyarmor AT marcinłandwijt influenceoftheacceleratedagingprocessonthefragmentresistantpropertiesofparaaramidbodyarmor AT michałmiklas influenceoftheacceleratedagingprocessonthefragmentresistantpropertiesofparaaramidbodyarmor AT marzenafejdys influenceoftheacceleratedagingprocessonthefragmentresistantpropertiesofparaaramidbodyarmor |