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Title: Nanoindentation and thermal characterization of poly (vinylidenefluoride)/MWCNT nanocomposites

We report the preparation, thermal and micro/nanomechanical behavior of poly (vinylidine diflouride) (PVDF)/multiwalled carbon nanotube (MWCNT) nanocomposites. It has been found that the addition of MWCNT considerably enhances the β-phase formation, thermal and mechanical properties of PVDF. Atomic force microscope (AFM) studies have been performed on the composites under stress conditions to measure the mechanical properties. The nanoscale mechanical properties of the composites like Young's modulus and hardness of the nanocomposites were investigated by nanoindentation technique. Morphological studies of the nanocomposites were also studied, observations show a uniform distribution of MWCNT in the matrix and interfacial adhesion between PVDF and MWCNT was achieved, which was responsible for enhancement in the hardness and Young's modulus. Differential scanning calorimetry (DSC) studies indicate that the melting temperature of the composites have been slightly increased while the heat of fusion markedly decreased with increasing MWCNT content.
Authors:
 [1] ; ;  [2] ;  [3]
  1. Industrial Engineering, GITAM University, Visakhapatnam, Andhrapradesh-530045 (India)
  2. Nanomaterials and Devices Research Laboratory, School of Nanoscience and Technology, National Institute of Technology Calicut, Kerala-673601 (India)
  3. Sree Vidyanikethan Engineering College, Sree Sainath Nagar, Tirupati, Andhra Pradesh-517102 (India)
Publication Date:
OSTI Identifier:
22253337
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 4; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ADHESION; ATOMIC FORCE MICROSCOPY; CALORIMETRY; CARBON NANOTUBES; COMPOSITE MATERIALS; DISTRIBUTION; FUSION HEAT; HARDNESS; MELTING POINTS; ORGANIC FLUORINE COMPOUNDS; POLYVINYLS; STRESSES; YOUNG MODULUS