RHEOLOGICAL STUDY OF NATURAL ZEOLITE PASTE WITH SILICA DIOXIDE

Authors

DOI:

https://doi.org/10.11603/2312-0967.2018.1.8598

Keywords:

rheological properties, natural zeolite, clinoptilolite, silica dioxide, paste.

Abstract

The aim of the work. Studying the rheological properties of natural zeolite (clinoptilolite) paste with silica dioxide as a thickener, to select their optimal concentrations.

Materials and Methods. The objects of the study were model compositions of pastes containing natural zeolite powder (clinoptilolite) in the concentrations of 15 %, 20 %, 25 % and 30 % as the active ingredient, and silica dioxide as a thickener in the concentrations of 5.0 %, 6.0 %, 7.0 % and 8.0 %. Determination of the rheological parameters was carried out at a temperature of 20 ± 2 °C using a MYR VR3000 (Spain) viscometer based on the Brookfield method, studies were carried out in the shear range from 1 s-1 to 200 s-1 using coaxial cylinders.

Results and Discussion. It is determined that the samples under investigation are related to thixotropic-structured pseudoplastic systems with a coagulation-type structure. Natural zeolite (clinoptilolite) along with silica dioxide has a structuring effect on the dispersed system, and their optimal concentrations, providing sufficient structure formation, are 25–30 % and 7–8 % respectively.

Conclusion. The rheological properties of natural zeolite paste (clinoptilolite) with silica dioxide, as a thickening agent, have been studied, and their optimal structure-forming concentrations have been chosen. The results obtained will be used to develop the composition of paste-enterosorbents with natural zeolite.

Author Biographies

  • V. D. Rybachuk, National University of Pharmacy
    Candidate of Pharmacy (Ph.D), associate professor of the Department of industrial technology of drugs, National University of Pharmacy.
  • O. A. Ruban, National University of Pharmacy
    Doctor of Pharmacy (Dr. habil), head of the Department of industrial technology of drugs, National University of Pharmacy.

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Published

2018-03-24

Issue

No. 1 (2018)

Section

Pharmaceutical technology, biopharmacy, homeopathy, biotechnology

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How to Cite

RHEOLOGICAL STUDY OF NATURAL ZEOLITE PASTE WITH SILICA DIOXIDE. (2018). Pharmaceutical Review Farmacevtičnij časopis, 1, 23-28. https://doi.org/10.11603/2312-0967.2018.1.8598