Durable Anti-fog Coatings for Contoured Plastic Substrates Using Nanoparticles with Tunable Size and Surface Chemistry
Department of Defense
Office for Chemical and Biological Defense
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2531 West 237th Street, Suite 127, Torrance, CA, 90505
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AbstractCurrently fielded respiratory protective systems in the Joint Services General Purpose Mask (JSGPM) program degrade in visual performance capability in extreme hot and cold environments. Optical and mechanical properties of existing anti-fog coatings also diminish when subjected to cleaning/sanitization operations. To address these needs, InnoSense LLC (ISL), in Phase I, has combined nanomaterials of different sizes, tunable surface chemistry, nanoporosity, and surface roughness into optical coatings. Two types of multifunctional antifogging properties, superhydrophilic and superhydrophobic, were demonstrated on DOD-relevant surfaces in collaboration with the prime contractor of the JSGPM program. This collaboration will continue in Phase II, and ISL will refine and optimize processes suitable for applying anti-fog coatings on lenses of various geometric shapes. Extensive tests would be performed to assure compliance with military needs. ISL will also deliver to DOD representative articles of battlefield goggles and ballistic shields containing the robust anti-fog coatings. Phase II work plan and Phase III goals have been outlined to expedite transitioning this technology into DOD’s procurement system. ISL has received strong letters of technology interest from potential partners within the DOD community.
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