| Autor: |
Santos Ramos, M.C Ismael, Rosas Trejo, Gerardo Antonio, Zárate Medina, Juan |
| Předmět: |
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| Zdroj: |
Congreso Internacional de Investigacion Academia Journals; 2018, Vol. 10 Issue 3, p3227-3229, 3p |
| Abstrakt: |
Carbon nanotubes (CNTs) were discovered in 1991 by Sumio Iijima, attracting the attention of researchers thanks to their excellent mechanical properties. However, the use of this material implies a challenge due to its tendency to agglomerate. A good dispersion of carbon nanotubes offers the opportunity to obtain materials with high properties. Deagglomeration and uniform dispersion are necessary stages before final applications. This research presents the dispersion of CNTs in an aqueous medium using two commercial surfactants, such as COFOTAA 44, amino trimethyl phosphonic acid (ATMP) and CONNO 100 nonylphenol 10. The colloidal sols were subjected to ultrasonication to promote deagglomeration and left to stand for 24 hours. Using UV-Vis spectroscopy the stability of the suspension was controlled, and by MEB and TEM the distribution was analyzed. Once a stable suspension, it was left to rest, observing that the suspension after nine months remains stable. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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