The current Fuel Handlers Coverall (FHC) is heavy and has a high thermal burden which leads Soldiers to remove the garment between fueling missions. The three main requirements of the FHC are fuel penetration protection, static dissipation and flame resistance. Super repellent coatings can provide a level of liquid protection against fuels and can help enhance the properties of the FHC without impacting the thermal burden to the Solider. Several coatings, including perfluorinated chemistries such as C6, are investigated to show the tradespace between these properties and thermal burden. The liquid penetration properties are evaluated to understand the protection against fuels using tests such as Oil Rating (AATCC 118), Resistance of Materials Used in Protective Clothing to Penetration by Liquids (ASTM F903 - modified), and timed droplet wetting tests of F24 Jet Fuel on the textile. The effects the coating has on antistatic and flame resistance properties of textiles is also explored. Including how the flame resistance after F24 Jet Fuel contamination of the textile can be affected using a newly developed, in-house testing method. The thermal burden is evaluated by swatch level textile testing using guarded hot plate (thermal insulation – Clo) and moisture vapor transmission rates (MVTR) using dynamic moisture permeation cell (DMPC).

Super repellent coatings for textiles for protection against aviation fuels

256th National Meeting (2018)

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