Poly(vinylidene fluoride) composites with carbon nanotubes decorated with metal nanoparticles. (1st June 2018)

• Record Type: Journal Article
• Authors: Nunes-Pereira, J.; Sharma, P.; Fernandes, L.C.; Oliveira, J.; Moreira, J.A.; Sharma, R.K.; Lanceros-Mendez, S.
• Is Part Of: Composites. Number 142(2018)
• Page Start: 1
• Page End: 8
• Publication Date: 2018-06-01
• Subjects: Piezoelectric polymers -- PVDF -- Carbon nanotubes -- Smart materials -- Electrical properties; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2017.12.047
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Polymer composites based on poly(vinylidene fluoride) (PVDF) filled with carbon nanotubes (CNT) decorated with metal nanoparticles (NP) of cobalt, nickel, platinum and palladium have been produced. The CNT nanofillers decorated with metal NP were synthesized by a modified wet impregnation method and their structural, morphological and thermal properties were evaluated. The metal NP ranging from 2 to 10 nm were found well dispersed on the CNT structure. The structural, optical, thermal and electrical properties of the metal/CNT/PVDF composite films demonstrate that the inclusion of the nanofillers leads to the nucleation of the γ-PVDF phase (up to 90%) and enhance the thermal properties (higher melting point) of the polymer. The nanofillers also proved to be suitability to tailor the optical properties of the polymer composite films and lead to an increase in the d.c. electrical conductivity (up to 10 −13 S/cm). Thus, the reported metal/CNT nanofillers are suitable to tune PVDF polymer properties towards specific applications. Graphical abstract: Highlights: Carbon nanotubes were successfully decorated with metal nanoparticles by wet impregnation method. Good dispersion of the metal nanoparticles in the carbon nanotubes structure were achieved. Poly(vinylidene fluoride) composite films with the prepared fillers were produced by solvent casting. The decorated carbon nanotubes promote the nucleation of the electroactive γ-phase of the polymer. The inclusion of the fillers allows tailoring the main properties of the polymer towards applications.