Myristic acid as surface modifier of calcium carbonate hydrophobic nanoparticles

  • Laiza Marinho Racca
  • Luíz Carlos Bertolino
  • Christine Rabello Nascimento
  • Ana Maria F. de Sousa
  • Leila Y. Reznik
  • Lídia Yokoyama
  • Ana Lúcia Nazareth da SilvaEmail author


Several papers describe the treatment of calcium carbonate (CaCO3) with stearic acid acting as a surface modifier, in order to avoid particle coalescence and, at the same time, enhancing filler hydrophobic properties. However, there is still a lack of data relating the efficiency of a traditional modifier used, stearic acid, in the synthesis of CaCO3 nanofiller with other modifiers in terms of inhibition of the agglomeration process during the synthesis. Thus, the present work evaluates the stability of CaCO3 nanoparticles obtained by a carbonation reaction, considering the contents of the crystallization inhibitor (trisodium phosphate-Na3PO4) and the surface modifier (myristic acid) applied. In order to achieve an efficient carbonation process, a bubbling system was used. The results showed that higher surface modifier and crystallization inhibitor contents lead to a narrower particle size distribution and a lower particle size. Comparing the CaCO3 nanoparticles coated with myristic acid (CaCO3-MA) and with stearic acid (CaCO3-SA), it was observed that CaCO3-MA has a higher thermal stability and a lower particle size in relation to CaCO3-SA. Besides this, a more spherical geometry was achieved for CaCO3-MA nanoparticles due to the bubbling system applied during the carbonation reaction.

Graphical abstract

The present study compare the properties between CaCO3 nanoparticles synthesized with myristic acid (MA) with a commercial CaCO3 grade, modified with stearic acid (SA). The results showed that CaCO3-MA has a higher thermal stability and a lower particle size in relation to CaCO3-SA. Beyond this, shape more spherical was achieved for CaCO3-MA nanoparticles due to the bubbling system used during carbonation reaction.


Calcium carbonate Nanoparticles Synthesis Surface modifiers Myristic acid Stearic acid 



The authors thank LAGOS company for CaCO3-SA donation.

Funding information

This work was financed by Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ, and Coordenação de Aperfeiçoamento de Pessoal de Nı́vel Superior (CAPES).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Laiza Marinho Racca
    • 1
  • Luíz Carlos Bertolino
    • 2
  • Christine Rabello Nascimento
    • 3
  • Ana Maria F. de Sousa
    • 4
  • Leila Y. Reznik
    • 5
  • Lídia Yokoyama
    • 5
  • Ana Lúcia Nazareth da Silva
    • 1
    • 6
    Email author
  1. 1.Universidade Federal do Rio de JaneiroInstituto de Macromoléculas Professora Eloisa ManoRio de JaneiroBrazil
  2. 2.Centro de Tecnologia MineralRio de JaneiroBrazil
  3. 3.Programa de Engenharia Metalúrgica (PEMM/COPPE/UFRJ)Universidade Federal do Rio de JaneirRio de JaneiroBrazil
  4. 4.Instituto de QuímicaUniversidade do Estado do Rio de JaneirRio de JaneiroBrasil
  5. 5.Programa de Pós-Graduação em Engenharia de Processos Químicos e Bioquímicos (EPQB)Universidade Federal do Rio de JaneiroRio de JaneiroBrazil
  6. 6.Programa de Engenharia AmbientalUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil

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