Polyamide11 (PA11)/BaTiO3/carbon nanotube (CNT) ternary nanocomposites (PBCNCs-3D) with 3D segregated percolation routes were fabricated by selective laser sintering (SLS) of CNT-coated PA11/BaTiO3 nanocomposite powder. The CNT-coated PA11/BaTiO3 nanocomposite powder show a higher laser absorption and wider sintering window than those of conventional PA11/BaTiO3/CNT ternary nanocomposite powders with a structure where CNTs are randomly distributed throughout the powder particles, endowing the composite powders with better sinterability. The 3D segregated conductive pathway was efficiently constructed in the PBCNCs-3D parts with a low percolation threshold of 0.3 wt%. The PBCNCs-3D parts showed a higher dielectric constant of 16.2 at a frequency of 1 kHz, which is approximately twice higher than that of SLS-printed composite parts (PBCNCs) without a segregated structure. Compared with PBCNCs, the piezoelectric strain coefficient increased from 1.7 to 2.1 pC/N. These results not only provide a new material for SLS processing but lay the groundwork to enhance the performance of piezoelectric polymer composites by constructing 3D segregated percolation routes.
Materials & design – Elsevier
Published: Apr 5, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera