Publisher DOI: 10.1002/mame.201200066
Title: Impact of filler functionalisation on the crystallinity, thermal stability and mechanical properties of thermoplastic elastomer/carbon nanotube nanocomposites
Language: English
Authors: Prado, Luís Antônio Sanchez de Almeida 
Kopyniecka, Agata 
Chandrasekaran, Swetha 
Broza, Georg 
Roslaniec, Zbigniew 
Schulte, Karl 
Keywords: carbon nanotubes;functionalization;interfaces;mechanical properties;thermoplastic elastomers
Issue Date: 2-Aug-2012
Publisher: Wiley-Interscience
Source: Macromolecular Materials and Engineering 3 (298): 359-370 (2013)
Journal or Series Name: Macromolecular materials and engineering 
Abstract (english): In the present work, the functionalisation of oxidised SWCNTs and MWCNTs is studied. The functionalised fillers are characterised by Raman spectroscopy and TGA. The functionalised fillers are dispersed in a PBT-PTMO thermoplastic elastomer matrix via in situ polymerisation. The functionalisation causes a fine filler dispersion right at beginning of nanocomposite manufacturing. The fillers act as nucleating agents for crystallisation and evidences for a grafting from PBT at the surface of the functionalised nanotubes are found. An outstanding reinforcement effect by the functionalised CNTs is confirmed by tensile tests. A new and facile functionalization of carbon nanotubes with 1,4-butanediol is proposed. The modified fillers could improve the mechanical properties of thermoplastic elastomers based on poly(butylene terephthalate co-tetramethylene oxide) multi-block copolymers. The nice dispersion and strong interfacial adhesion led to improved mechanical performance. Thermal analysis evidences the chemical coupling of poly(butylene terephthalate) at the functionalized nanoparticles surface. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
ISSN: 1439-2054
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Type: (wissenschaftlicher) Artikel
Funded by: Deutsche Forschungsgemeinschaft (DFG) (Grant Number: Schu 926/14‐1).
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