Macroscopic CNT fibres inducing non-epitaxial nucleation and orientation of semicrystalline polymers

Yue, Hangbo and Monreal-Bernal, Alfonso and Fernández-Blázquez, J. P. and Llorca Martinez, Francisco Javier and Vilatela, J. J. (2015). Macroscopic CNT fibres inducing non-epitaxial nucleation and orientation of semicrystalline polymers. "Scientific Reports", v. 5 ; pp. 1-10. ISSN 2045-2322. https://doi.org/10.1038/srep16729.

Description

Title: Macroscopic CNT fibres inducing non-epitaxial nucleation and orientation of semicrystalline polymers
Author/s:
  • Yue, Hangbo
  • Monreal-Bernal, Alfonso
  • Fernández-Blázquez, J. P.
  • Llorca Martinez, Francisco Javier
  • Vilatela, J. J.
Item Type: Article
Título de Revista/Publicación: Scientific Reports
Date: November 2015
ISSN: 2045-2322
Volume: 5
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In the presence of macroscopic fibres of carbon nanotubes (CNT), various semicrystalline polymers are shown to present accelerated crystallisation through the formation of a transcrystalline (TC) layer perpendicular to the fibre axis. From differential scanning calorimetry, polarized optical microscopy and X-ray diffraction we establish this to be due to much faster nucleation rates at the fibre surface. The formation of a TC layers is demonstrated for polyvinyldene fluoride, isotactic polypropylene and poly(lactic acid) in spite of the large differences in their chemistry and structure unit cells, suggesting that epitaxy in terms of lattice type or size matching is not a prerequisite. For the three polymers as well as poly(ether ether ketone), the TC layer is identically oriented with the chain axis in the lamella parallel to the CNTs, as observed by wide and small angle X-ray scattering. These results point to polymer chain orientation at the point of adsorption and the formation of a mesomorphic layer as possible steps in the fast nucleation of oriented lamella, with wetting of the CNT fibre surface by the molten semi-crystalline polymer a key condition for heterogeneous nucleation to take place.

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentS2013/MIT-3007MAD2DFrancisco Guinea LópezPropiedades fundamentales y aplicaciones del grafeno y otros materiales bidimensionales
FP7291803AMAROUT-IIFundación IMDEA SoftwareAMAROUT-II Europe
FP7322129MUFINFundación IMDEA MaterialesMultifunctional Fibre Nano Composites
Government of SpainJCI-2011-11720UnspecifiedJuan José Vilatela GarcíaSubprograma Juan de la Cierva

More information

Item ID: 45025
DC Identifier: http://oa.upm.es/45025/
OAI Identifier: oai:oa.upm.es:45025
DOI: 10.1038/srep16729
Official URL: http://www.nature.com/articles/srep16729
Deposited by: Memoria Investigacion
Deposited on: 14 Mar 2017 15:45
Last Modified: 10 Jun 2019 15:29
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