Shock Thermal Resistance of Parachute Fabrics
The use of polyester and polyamide fabrics for parachute constructions has a great advantage because, in comparison with classical silk-based parachutes, they are more durable and suitable for absorbing higher mechanical shocks. Because polyester and polyamides are thermoplastics, they are sensitive...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Eng |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-4117/6/4/80 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849714131910787072 |
|---|---|
| author | Jiří Militký Jakub Wiener Dana Křemenáková Mohanapriya Venkataraman |
| author_facet | Jiří Militký Jakub Wiener Dana Křemenáková Mohanapriya Venkataraman |
| author_sort | Jiří Militký |
| collection | DOAJ |
| description | The use of polyester and polyamide fabrics for parachute constructions has a great advantage because, in comparison with classical silk-based parachutes, they are more durable and suitable for absorbing higher mechanical shocks. Because polyester and polyamides are thermoplastics, they are sensitive to sudden increases in temperature due to mechanical shocks and high-speed friction. It is known that the local surface temperature of these parachute fabrics may exceed the melting point of the canopy for a short time period during parachute opening, which would have irreversible effects on parachute functionality and could lead to catastrophic parachute rupture. The main aim of this article is to enhance the surface heat resistance of the parachute fabrics from polyamide and polyester filaments through surface coating combined with super-fine TiO<sub>2</sub> particles and silanization. This coating is also selected to increase the frictional heat loss and enhance the mechanical stability of parachute fabrics constructed from polyamide and polyester filaments. The changes in air permeability, bending rigidity, and friction of surface-coated parachute fabrics are evaluated as well. The new method based on laser irradiation by a pulsed laser is used for the prediction of these fabrics’ short-time surface thermal resistance. |
| format | Article |
| id | doaj-art-e2e7700233c448aaaf308c5a01990a7e |
| institution | DOAJ |
| issn | 2673-4117 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Eng |
| spelling | doaj-art-e2e7700233c448aaaf308c5a01990a7e2025-08-20T03:13:47ZengMDPI AGEng2673-41172025-04-01648010.3390/eng6040080Shock Thermal Resistance of Parachute FabricsJiří Militký0Jakub Wiener1Dana Křemenáková2Mohanapriya Venkataraman3Department of Material Engineering, Textile Faculty, Technical University of Liberec, 46117 Liberec, Czech RepublicDepartment of Material Engineering, Textile Faculty, Technical University of Liberec, 46117 Liberec, Czech RepublicDepartment of Material Engineering, Textile Faculty, Technical University of Liberec, 46117 Liberec, Czech RepublicDepartment of Material Engineering, Textile Faculty, Technical University of Liberec, 46117 Liberec, Czech RepublicThe use of polyester and polyamide fabrics for parachute constructions has a great advantage because, in comparison with classical silk-based parachutes, they are more durable and suitable for absorbing higher mechanical shocks. Because polyester and polyamides are thermoplastics, they are sensitive to sudden increases in temperature due to mechanical shocks and high-speed friction. It is known that the local surface temperature of these parachute fabrics may exceed the melting point of the canopy for a short time period during parachute opening, which would have irreversible effects on parachute functionality and could lead to catastrophic parachute rupture. The main aim of this article is to enhance the surface heat resistance of the parachute fabrics from polyamide and polyester filaments through surface coating combined with super-fine TiO<sub>2</sub> particles and silanization. This coating is also selected to increase the frictional heat loss and enhance the mechanical stability of parachute fabrics constructed from polyamide and polyester filaments. The changes in air permeability, bending rigidity, and friction of surface-coated parachute fabrics are evaluated as well. The new method based on laser irradiation by a pulsed laser is used for the prediction of these fabrics’ short-time surface thermal resistance.https://www.mdpi.com/2673-4117/6/4/80parachute fabricssurface coatingsurface thermal resistancelaser irradiation |
| spellingShingle | Jiří Militký Jakub Wiener Dana Křemenáková Mohanapriya Venkataraman Shock Thermal Resistance of Parachute Fabrics Eng parachute fabrics surface coating surface thermal resistance laser irradiation |
| title | Shock Thermal Resistance of Parachute Fabrics |
| title_full | Shock Thermal Resistance of Parachute Fabrics |
| title_fullStr | Shock Thermal Resistance of Parachute Fabrics |
| title_full_unstemmed | Shock Thermal Resistance of Parachute Fabrics |
| title_short | Shock Thermal Resistance of Parachute Fabrics |
| title_sort | shock thermal resistance of parachute fabrics |
| topic | parachute fabrics surface coating surface thermal resistance laser irradiation |
| url | https://www.mdpi.com/2673-4117/6/4/80 |
| work_keys_str_mv | AT jirimilitky shockthermalresistanceofparachutefabrics AT jakubwiener shockthermalresistanceofparachutefabrics AT danakremenakova shockthermalresistanceofparachutefabrics AT mohanapriyavenkataraman shockthermalresistanceofparachutefabrics |