Effects of Physical Aging on the Bending Recovery of Polyester Films Coated with Ag Nanowires
Vol. 57, No. 6, pp. 368-375,
Dec. 2020
10.12772/TSE.2020.57.368
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Abstract
We investigated the effects of physical aging on the bending recovery of polyester
conductive films coated with Ag nanowires (AgNWs). The physical aging treatment contributed
to the improvement in the bending recovery of polyester films irrespective of the
AgNW coating. The stress relaxation-recovery experiment confirmed that the films with
good bending recovery demonstrated retarded stress relaxation, increased instantaneous
elastic strain, and decreased permanent deformation. The drying temperature after coating
had an effect on the bending recovery of polyester films, with a significant effect on the
poly(ethylene terephthalate) (PET) film that had a lower glass transition temperature compared
to poly(ethylene naphthalate) (PEN) film. Physical aging did not significantly affect
the electrical resistance of the AgNW-coated polyester films.
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