Electrical, optical and mechanical properties of PS/GNP composite films
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the electrical, optical and mechanical properties of polystyrene (PS) thin films added graphene nanoplatelet (GNP) have been investigated. Surface conductivity (sigma), absorbance intensity (A) and tensile modulus of these composite films have increased with increasing the content of GNP in the composite. The increase in the electrical and optical properties of the PS/GNP composite films has been interpreted by site and classical percolation theory, respectively. The electrical and the optical percolation thresholds of PS/GNP composite films were determined as R-sigma = 23.0 wt.% and R-op = 13.0 wt.%, respectively. While the conductivity results have been attributed to the classical percolation theory, the optical results have attributed to the site percolation theory. The electrical (beta(sigma)) and the optical (beta(op)) critical exponents were calculated as 2.54 and 0.40, respectively. The tensile modulus and the tensile strength of the PS/GNP composites increased with the increasing of GNP content in the PS. But, the toughness of the composites fluctuated with GNP addition.
Açıklama
Anahtar Kelimeler
Polystyrene Composites, Percolation, Spin Coating, Surface Conductivity, Tensile Modulus, Graphene Nanoplatelet (GNP), Polymer Composites, Carbon Nanotubes, Percolation-Threshold, Graphene Nanosheets, Physical-Properties, Nanocomposites, Conductivity, Behavior
Kaynak
Phase Transitions
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
91
Sayı
8
