Structural changes of viscoelastic solutions of zwitterionic and anionic surfactant mixtures under the influence of simple salt

• Autorzy: Różańska Sylwia , Warmbier Ewelina , Wagner Patrycja , Różański Jacek
• Języki publikacji: EN

Abstrakty

EN

The paper presents the effects of sodium chloride on the rheological properties of aqueous solutions of cocamidopropyl betaine (CAPB) and sodium dodecylbenzene sulfonate (SDBS) mixtures. Studies were carried out in the CAPB/SDBS molar ratio range of 0.95 to 3.5, at sodium chloride concentrations varying from 0.03 M to 0.75 M. Continuous and oscillatory flow measurements showed that the impact of sodium chloride concentration on shear viscosity and relaxation time was closely linked to the CAPB/SDBS molar ratio. The maximum shear viscosity and the longest Maxwell relaxation time were obtained at the CAPB/SDBS molar ratio of 2. Based on CryoTEM images, it was determined that the shear viscosity and relaxation time peaks identified at a certain concentration of sodium chloride could be attributed to the transition of the entangled wormlike micellar network into branched wormlike micelles. Changes in the micellar microstructure accompanying modifications of the CAPB/SDBS molar ratio and sodium chloride concentration were accounted for on the basis of the packing parameter.

Słowa kluczowe

EN

wormlike micelles; surfactant solutions; CryoTEM; Maxwell model

PL

roztwory środków powierzchniowo czynnych; CryoTEM; model Maxwella

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering : New Frontiers
• Rocznik: 2023
• Tom: Vol. 44, nr 2
• Strony: art. no. e10
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Różańska Sylwia

• Poznan University of Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, 60-965 Poznań, Poland

• https://orcid.org/0000-0002-3111-1868

autor

Warmbier Ewelina

• Poznan University of Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, 60-965 Poznań, Poland

• https://orcid.org/0000-0002-7322-4166

autor

Wagner Patrycja

• Poznan University of Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, 60-965 Poznań, Poland

• https://orcid.org/0000-0003-3957-1700

autor

Różański Jacek

• Poznan University of Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, 60-965 Poznań, Poland

• https://orcid.org/0000-0001-7464-7315

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).