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Mechanical Restoration of Damaged Polymer Films by “Repair‐and‐Go”
Author(s) -
Bai Ying,
Chang ChiaChih,
Zhao Xiaojuan,
Ribbe Alexander,
Bolukbasi Irem,
Szyndler Megan J.,
Crosby Alfred J.,
Emrick Todd
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201503947
Subject(s) - materials science , nanoparticle , polymer , deposition (geology) , emulsion , curing (chemistry) , composite material , substrate (aquarium) , surface modification , nanotechnology , chemical engineering , paleontology , oceanography , sediment , geology , engineering , biology
A microencapsulation and nanoparticle deposition technique, termed “repair‐and‐go,” is employed for inducing mechanical restoration of damaged polymer films. In “repair‐and‐go,” polymer‐stabilized emulsion droplets, containing surface‐functionalized SiO 2 nanoparticles, traverse a substrate and deposit their nanoparticle contents selectively into the damaged regions. Surface‐oxidized poly(dimethylsiloxane) is employed as the substrate, and dynamic mechanical analysis reveals the enhanced mechanical properties of the film following nanoparticle deposition. Healing efficiency is optimal when using thinner test substrates, repeated deposition cycles, and functional SiO 2 nanoparticles that afford access to postdeposition curing.