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Authors Raman, V. ; Rooj, S. ; Das, A. ; Stöckelhuber, K.W. ; Simon, F. ; Nando, G. B. ; Heinrich, G.
Title Reinforcement of solution styrene butadiene rubber by silane functionalized halloysite nanotubes
Date 28.10.2013
Number 40643
Abstract We describe a nanocomposite based on solution styrene butadiene rubber (SSBR) and naturally occurring tube-like nanoparticles called halloysite nanotubes (HNT). Highly hydrophilic HNT nanotubes were modified by different silane coupling agents namely diethoxydimethyl silane (DMS) and bis[3-(triethoxysilyl)­propyl]tetrasulfide (TESPT) to ensure good dispersion of these nanoparticles in the hydrophobic SSBR matrix. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) were used to characterize the functional groups on the surface of the HNT after the silane modification. Contact angle measurements, thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were also carried out to understand the extent of modification. The reinforcing effect of modified HNT in SSBR matrix was perceived from both static and dynamic mechanical properties. The tensile strength and elongation at break of the modified HNT filled SSBR nanocomposites are found to be much higher than that of pristine HNT (pHNT) filled nanocomposites. In addition, transmission electron microscopic analysis unveiled the fact that, owing to more rubber-filler interaction modified HNT dispersed in a very fine state as compared with pHNT.
Publisher Journal of Macromolecular Science - A: Pure Applied Chemistry
Wikidata
Citation Journal of Macromolecular Science - A: Pure Applied Chemistry 50 (2013) 1091-1106
DOI https://doi.org/10.1080/10601325.2013.829349
Tags halloysite nanotubes solution styrene butadiene rubber silane coupling agent surface modification nanocomposites

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