Studying the stability of aqueous suspensions of multiwalled carbon nanotubes used for the modification of composite materials

Autor:	Alena Politaeva, Grigory Yakovlev, Damir Khazeev
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	multiwalled carbon nanotubes suspensions microstructure IR-spectral analysis differential scanning calorimetry dispergation Engineering (General). Civil engineering (General) TA1-2040
Zdroj:	Engineering Structures and Technologies, Vol 6, Iss 2 (2014)
Druh dokumentu:	article
ISSN:	2029882X 2029-882X 2029-8838 40584720
DOI:	10.3846/2029882X.2014.972649
Popis:	In this paper, the stability of aqueous suspensions of multiwalled carbon nanotubes (MWCNTs) has been studied with physical and chemical methods. The optimum dispersion time of MWCNT suspension in a rotary homogenizer has been found. The dispersion time being increased, the quality of the suspension decreases. The data of the physical and chemical studies has also been confirmed experimentally on gypsum samples. The samples modified with MWCNT suspension of 2-hour dispersion show an increase in flexural strength and compressive strength by 40% and 48%, respectively, in comparison with the control sample, whereas the samples modified with MWCNT suspension of 10-hour dispersion show a decrease in flexural strength and compressive strength. The microstructure of the gypsum samples was studied with a scanning electron microscope.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/577a40584720496a9e42b1d414fe6424 Zobrazit plný text záznamu View record in DOAJ