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Structure · dataset · 2018

Experimental Multi-scale analysis of Carbon/Epoxy Composites Nano-Reinforced by Carbon Nanotubes/Multi-layer Graphene

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Nano-size structures, nanotubes/multi-layer graphene (CNT/MLG), were dispersed into epoxy system by a combination of sonication and high shear mixing.

Description

To avoid CNT/MLG agglomeration, a non-covalent functionalization were performed using surfactants, CO890 - Polyoxyethylene (40) nonylphenyl ether and SDBS - sodium dodecyl benzene sulfonate. Raman spectroscopy and Fourier transformed Infra-red analysis indicated that CO890-MLG and SDBS-CNT have strong chemical interactions.

Atomic force microscopy revealed formation of "spike-like" nanostructures for SDBS-CNT combination and "wall-like" nano-shape structures for the CO890-MLG ones. Tensile tests data indicate no significant change on stiffness. In average, the ultimate stress increased around 18%, while toughness had an improvement close to 62%.

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SDBS-CNT and CO890-MLG at small concentrations (0.075 wt. %) are probably the best options for nano-reinforcement of carbon/epoxy composites.

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Microscopy 75%

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Provenance · 1 source records, 11 field assertions
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DataCite10.6084/m9.figshare.5816154.v112 d agoJSON v1
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concepts[modality].local:modality:microscopyenrichment · DataCitekeyword-concept-rules@1.0.0title+description (75%)
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