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Authors
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Das, A. ; Boldt, R. ; Jurk, R. ; Jehnichen, D. ; Fischer, D. ; Stöckelhuber, K.W. ; Heinrich, G.
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Title
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Nano-scale morphological analysis of graphene - rubber composites using 3D transmission electron microscopy
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Date
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20.01.2014
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Number
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41603
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Abstract
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In this work three-dimensional transmission electron microscopy (3D-TEM) is exploited to characterize a soft graphene based nano-composites structure and the constituted morphology in a qualitative way. The reconstruction of the two dimensional slides into a three dimensional tomographic image is a powerful tool, when the images of the nano-object are reflected into a quasi-distinguishable object due to superposition effect. By using this technique it is possible to mark the contour area of the nano-sized object inside the soft rubber matrix. To extract information about the filler network, the clustering process of the fillers or the existence of single or multiple graphene sheets, a solution polymerised styrene butadiene rubber was selected as a soft matrix which was filled with carbon black (CB) and graphene nano-platelets (GnP). The dispersion/exfoliation of the stacked graphene sheets into individual single sheets was facilitated by the presence of carbon black in the system as understood from TEM, X-ray diffraction and Raman spectroscopic studies. The existence of oligo-layer graphene sheets was detected by this 3D-TEM, especially when the rubber matrix exists in a complex morphology arisen from fillerfiller networks in all spatial dimensions.
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Publisher
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RSC Advances
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Wikidata
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Citation
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RSC Advances 4 (2014) 9300-9307
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DOI
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https://doi.org/10.1039/C3RA47050D
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Tags
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