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Regenerative Polymeric Coatings Enabled by Pressure Responsive Surface Valves
Author(s) -
Gergely Ryan C. R.,
Sottos Nancy R.,
White Scott R.
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201700308
Subject(s) - materials science , coating , self healing , curing (chemistry) , composite material , surface modification , substrate (aquarium) , nanotechnology , chemical engineering , medicine , oceanography , alternative medicine , pathology , engineering , geology
Protective coatings safeguard the underlying substrate material from environmental attack and are critical for operating in harsh conditions. Self‐healing materials have been developed for the autonomous repair of damage in coatings. This work demonstrates a regenerative coating system that is a simplified synthetic analog of skin. A protective UV curable coating reforms with properties identical to the native coating after complete removal. An integrated surface valve prevents premature curing of healing agent contained within a vascular substrate prior to damage‐triggered release, facilitating recovery from repeat damage. The protective coating reforms when exposed to simulated sunlight.