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- Title
Synergistic effect of three-dimensional multi-walled carbon nanotube-graphene nanofiller in enhancing the mechanical and thermal properties of high-performance silicone rubber.
- Authors
Pradhan, Bratati; Srivastava, Suneel Kumar
- Abstract
The homogeneous dispersion of nanofillers and filler-matrix interfacial interactions are important factors in the development of high-performance polymer materials for various applications. In the present work, a simple solution-mixing method was used to prepare multi-walled carbon nanotube ( MWCNT)-graphene (G) (3:1, 1:1, 1:3) hybrids followed by their characterization through wide-angle X-ray diffraction, transmission electron microscopy and thermogravimetric analyses. Subsequently, MWCNT-G (1:1) hybrid was used as reinforcing filler in the formation of silicone rubber ( VMQ) nanocomposites by solution intercalation, and their morphology and properties were investigated. Our findings showed that MWCNT-G (0.75 wt%)/ VMQ composite exhibited significant improvements in tensile strength (110%) and Young's modulus (137%) compared to neat VMQ. The thermal stability of MWCNT-G (1 wt%)/ VMQ was maximally improved by 154 °C compared to neat VMQ. Differential scanning calorimetry demonstrated the maximum improvement of glass transition temperature (4 °C), crystallization temperature (8 °C) and melting temperature (5 °C) for MWCNT-G (1 wt%)/ VMQ nanocomposite with respect to neat VMQ. Swelling measurements confirmed that the crosslink density and solvent resistance were a maximum for hybrid nanocomposites. Such improvements in the properties of MWCNT-G/ VMQ nanocomposites could be attributed to a synergistic effect of the hybrid filler. © 2013 Society of Chemical Industry
- Subjects
POLYMERS; CARBON nanotubes; X-ray diffraction; TRANSMISSION electron microscopy; DIFFERENTIAL scanning calorimetry; CRYSTALLIZATION; NANOCOMPOSITE materials
- Publication
Polymer International, 2014, Vol 63, Issue 7, p1219
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.4627