Evaluating the effect of dispersing techniques of graphene nanoplatelets in natural hydraulic lime mortar

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385313" target="_blank" >RIV/68407700:21110/25:00385313 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/5.0286304" target="_blank" >http://dx.doi.org/10.1063/5.0286304</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0286304" target="_blank" >10.1063/5.0286304</a>

Result language

angličtina

Original language name

Evaluating the effect of dispersing techniques of graphene nanoplatelets in natural hydraulic lime mortar

Original language description

The properties of carbon-based nanomaterials enable their application in a wide variety of medical or industrial fields. In material science, carbon nanomaterials were commonly incorporated into the cement matrix in the form of graphene or carbon nanotubes. However, the preparation and incorporation technique of nanomaterials is crucial for the correct use of all enhancing properties of this type of material. Because of the small size, nanomaterials tend to form clumps and clusters due to small Van der Waals forces. These clusters form weak points in the material matrix and may cause small mechanical strength of the material. With regard to these features, the effect of different dispersing techniques and dispersion-enhancing agents have been analyzed in this paper. The effectiveness of dispersing methods and chemical agents supporting stability of dispersion prior to the sample mixing was evaluated on UV-light absorption principle. The impact of chosen dispersing methods on structural and mechanical properties was studied on hardened mortar samples. Regardless of the chemicals used, the best dispersion of nanoadditive was achieved in water alone using an ultrasonic bath. However, the high content of nanoadditive as well as use of noncompatible dispersing agent even in a small amount worsen the mechanical performance of the material due to the low dispersion stability.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

AIP Conference Proceedings 3315

ISBN

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ISSN

1551-7616

e-ISSN

1551-7616

Number of pages

4

Pages from-to

"060001-1"-"060001-4"

Publisher name

AIP Publishing, APL, the American Institute of Physics

Place of publication

Melville, NY

Event location

Heraklion

Event date

Sep 11, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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