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19 April 2022 A spiropyran-based photochromic webbing for ultra-violet light damage sensing
Peng Zhang, Simon Carrillo Segura, Alain Boldini, Pasquale Di Trolio, Osgar John Ohanian III, Maurizio Porfiri
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Proceedings Volume 12048, Health Monitoring of Structural and Biological Systems XVI; 1204814 (2022) https://doi.org/10.1117/12.2612099
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
From parachutes to orbiting systems, webbing structures play a crucial role on the safety of civil and aerospace systems. The mechanical strength of a webbing can be severely undermined by the ultra-violet (UV) component of sunlight. In this work, we introduce a photochromic webbing structure that exhibits color variation upon UV irradiation. The photochromic webbing demonstrates sensitivity under a wide range of realistic field settings, including extended UV exposures and cyclic UV irradiations. Our analysis could help set the stage for the integration of photochromic webbings in aerospace systems.
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Peng Zhang, Simon Carrillo Segura, Alain Boldini, Pasquale Di Trolio, Osgar John Ohanian III, and Maurizio Porfiri "A spiropyran-based photochromic webbing for ultra-violet light damage sensing", Proc. SPIE 12048, Health Monitoring of Structural and Biological Systems XVI, 1204814 (19 April 2022); https://doi.org/10.1117/12.2612099
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KEYWORDS
Ultraviolet radiation
Molecules
Coating
Cameras
Polymers
Visible radiation
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