2022 (4) 1

https://doi.org/10.15407/polymerj.44.04.245

MODIFICATION OF MONTMORILLONITE FOR OBTAINING NANOCOMPOSITES BASED ON POLAR POLYMERS

А.N. Gonchar,

Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02155, Ukraine,

e-mail: lexgon@ukr.net

ORCID: 0000-0001-8356-9283

Yu.V. Savelyev,
Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02155, Ukraine,
ORCID: 0000-0003-3356-9087

Polym. J., 2022, 44, no. 4: 245-254.

Section: Review.

Language: Ukrainian.

Abstract:

This review covers almost all known categories of compounds used to modify montmorillonite to obtain nanocomposites based on polar polymers. Organic modifiers such as quaternary ammonium ions, quaternary phosphonium ions, amino acids and other organic compounds are commonly used to modify montmorillonite (MMT). The main directions of scientific research in this field are considered, namely the modification of MMT with ammonium surfactants, phosphonium surfactants, amino acids and nonionic surfactants. The review used 67 sources related to peer-reviewed publications, mostly from the last 10-15 years. The largest number of publications devoted to the modification of MMT was published in the period from 2004 to 2016. Nanocomposites based on epoxy resins are especially widely presented in the literature. Epoxy-based materials have been used for many years as convenient matrices for dispersing MMT due to the advantages of properties of the obtained polymer nanocomposites, such as mechanical strength, non-flammability and thermal stability. The methods of surface modification of MMT with organic modifiers considered in the article are a powerful tool for the production of polymer nanocomposite materials based on polar polymers. Amine modification of MMT allowed the formation of highly effective materials, in particular epoxy/MMT materials. These nanocomposites have demonstrated extraordinary material properties compared to virgin polymers and can therefore be used as an alternative to conventional materials such as steel and wood, reducing the cost and weight of products. Nanocomposites based on polar polymers occupy an important place among all polymer nanocomposites as modern materials used in the aerospace, automotive and electrical industries.

Key words: organic modifiers, montmorillonite, nanocomposite.

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