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Micro Mirror Polymer Composite Offers Mechanically Switchable Light Transmittance
Author(s) -
Rotzetter Aline C. C.,
Fuhrer Roland,
Grass Robert N.,
Schumacher Christoph M.,
Stoessel Philipp R.,
Stark Wendelin J.
Publication year - 2014
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.201300478
Subject(s) - materials science , transmittance , transparency (behavior) , silicone , composite number , polymer , composite material , coating , ceramic , curing (chemistry) , nanotechnology , optoelectronics , computer science , computer security
Elastic silicone composites with mechanically switchable transparency are generated by incorporating micron‐sized aluminum platelets into a highly flexible silicone. Physisorbing Fe 3 O 4 nanoparticles onto the platelets surface allow magnetic pre‐alignment during the polymer curing. One‐dimensional or two‐dimensional stretching of the resulting silicone composites permits orientation of the incorporated flakes and alters light transmittance of the polymer coating.