Enhanced thermo-mechanical performance and strain-induced band gap reduction of TiO2@PVC nanocomposite films

Title
Enhanced thermo-mechanical performance and strain-induced band gap reduction of TiO2@PVC nanocomposite films
Author(s)
바너지나라얀이문용무다시르하산
Keywords
PHOTOCATALYTIC PROPERTIES; THERMAL-STABILITY; THIN-FILMS; COMPOSITE; CHLORIDE)
Issue Date
201504
Publisher
INDIAN ACAD SCIENCES
Citation
BULLETIN OF MATERIALS SCIENCE, v.38, no.2, pp.283 - 290
Abstract
The present paper reports the fabrication of TiO2@PVC nanocomposites by incorporating TiO2 in polyvinyl chloride (PVC) followed by solution casting to prepare TiO2@PVC nanocomposite thin films. The as-prepared TiO2@PVC nanocomposite films were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, high-resolution transmission electron microscopy, thermogravimetric analysis, optical spectroscopy and mechanical strength analyses. The TiO2@PVC nanocomposites were found to be thermally and mechanically more stable compared with pure PVC. The anatase TiO2 in the TiO2@PVC nanocomposite showed a lower indirect band gap compared with pure TiO2, which can be attributed to the strain within the nanocomposite, thereby affecting the band-structure of the nanocomposite. Significant enhancement in the mechanical properties of TiO2@PVC compared with pure PVC was observed with a 10 wt% TiO2 loading, such as a 50% increase in Young's modulus and almost 100% improvement in the tensile strength.
URI
http://hdl.handle.net/YU.REPOSITORY/32700http://dx.doi.org/10.1007/s12034-014-0831-6
ISSN
0250-4707
Appears in Collections:
공과대학 > 기계공학부 > Articles
공과대학 > 화학공학부 > Articles
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