Effect of Carbon Nanotube Aqueous Dispersion Quality on Mechanical Properties of Cement Composite
Joint Authors
Anoshkin, Ilya V.
Nasibulina, Larisa I.
Cwirzen, Andrzej
Penttala, Vesa
Kauppinen, Esko I.
Nasibulin, Albert G.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-15
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
An effect of the quality of carbon nanotube (CNT) dispersions added to cement on paste mechanical properties has been studied.
High-quality dispersions of few-walled CNT (FWCNTs) were produced in two steps.
First, FWCNTs were functionalized in a mixture of nitric and sulfuric acids (70 wt.% and 96 wt.%, resp.) at 80∘C.
Second, functionalized FWCNTs were washed out by acetone to remove carboxylated carbonaceous fragments (CCFs) formed during CNT oxidation.
Mechanical test results showed 2-fold increase in the compressive strength of the cement paste prepared from the dispersion of acetone-washed functionalized FWCNTs, which is believed to occur due to the chemical interaction between cement matrix and functional groups (–COOH and –OH).
Utilisation of unwashed FWCNTs led to a marginal improvement of mechanical properties of the cement pastes, whereas surfactant-treated functionalized FWCNT dispersions only worsened the mechanical properties.
American Psychological Association (APA)
Nasibulina, Larisa I.& Anoshkin, Ilya V.& Nasibulin, Albert G.& Cwirzen, Andrzej& Penttala, Vesa& Kauppinen, Esko I.. 2012. Effect of Carbon Nanotube Aqueous Dispersion Quality on Mechanical Properties of Cement Composite. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029145
Modern Language Association (MLA)
Nasibulina, Larisa I.…[et al.]. Effect of Carbon Nanotube Aqueous Dispersion Quality on Mechanical Properties of Cement Composite. Journal of Nanomaterials No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-1029145
American Medical Association (AMA)
Nasibulina, Larisa I.& Anoshkin, Ilya V.& Nasibulin, Albert G.& Cwirzen, Andrzej& Penttala, Vesa& Kauppinen, Esko I.. Effect of Carbon Nanotube Aqueous Dispersion Quality on Mechanical Properties of Cement Composite. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029145
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029145