Multiwalled carbon nanotubes filled thermoplastic vulcanizate dielectric elastomer with excellent resilience properties via inhibiting MWCNT network formation

Multiwalled carbon nanotubes filled thermoplastic vulcanizate dielectric elastomer based on polypropylene /ethylene-propylene-diene monomer blends were fabricated via a simple melt compounding

Lifeng Ma; Jiajia Hu; Rui Dou

2020

Scholarcy highlights

  • Multiwalled carbon nanotubes filled thermoplastic vulcanizate dielectric elastomer based on polypropylene/ethylene-propylene-diene monomer blends were fabricated via a simple melt compounding
  • MWCNT could be selectively distributed in PP matrix which induced by the dynamic vulcanization reaction
  • By reducing the rotor speed of melting blending to 60 rpm, the MWCNT network formation can be effectively inhibited, which have been verified by a higher volume resistivity
  • With increasing the MWCNTs loading to 4.1 vol%, a maximum increase, 423.4%, of the dielectric constant have been achieved for TPV/MWCNTs elastomer at 103 Hz, while the dielectric loss is still lower than 0.072 at 101–103 Hz
  • The thermoplastic vulcanizate elastomer exhibits an enhanced dielectric performance and balanced elastic recovery performance, providing a simple and scalable melt compounding approach to fabricate high-performance dielectric elastomer

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