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Nanocomposites Based on Polyamide and Montmorillonite Obtained from a Solution

Krasinskyi Volodymyr, Suberlyak Oleh, Kochubei Viktoria, Jachowicz Tomasz, Dulebova Ludmila, Zemke Viktoria

Advances in Science and Technology. Research Journal

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2020

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Vol. 14, no 3

192--198

EN

This work deals with the development of a method for obtaining polyamide and montmorillonite based nanocomposite, which was modified with polyvinylpyrrolidone by mixing in a formic acid solution. The structure and thermophysical properties of the obtained nanocomposites were investigated by means of the X-ray, differentialthermal, thermogravimetric and IR spectroscopic analyses. It was found that nanomodified polycaproamide has a higher crystallinity and higher thermal stability than the original PA-6, and is characterized by considerably higher melt fluidity. The presence of polyvinylpyrrolidone and exfoliated montmorillonite in the nanocomposite structure was confirmed experimentally.

2

Wpływ primerów na jakość odbitek cyfrowych atramentowych

Havenko Svitlana, Khadzhynova Svitlana, Krasinskyi Volodymyr, Suberlyak Oleh, Antoniuk Viktoria, Rybka Roman

Przegląd Papierniczy

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2019

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R. 75, nr 3

199--202

PL

Zbadano właściwości primerów do drukowania cyfrowego atramentowego (inkjet) na bazie interpolimerowych kompleksów poli (alkoholu winylowego). Określono wpływ primerów o różnych stężeniach alkoholu poliwinylowego na proces zwilżania papierów offsetowych i powlekanych. Celowość drukowania primerów na papierze przed drukowaniem atramentowym jest potwierdzona za pomocą metod mikroskopii elektronowej oraz badań jakości nadruku (gęstość optyczna, barwa).

EN

The properties of primers for digital inkjet printing on the basis of interpolymer complexes of polyvinyl alcohol have been investigated. The influence of primers with different concentrations of polyvinyl alcohol on the process of wetting of offset and coated papers was determined. The expediency of primer application on paper before inkjet printing was confirmed by electron microscopy, obtained values of optical density, saturation of colors on the imprints.

3

Effect of Nature and Amount of Polypropylene Composite Filler on the Productivity of Extruder with the Cylinder Equipped with Grooves

Krasinskyi Volodymyr, Moravskyi Volodymyr, Suberlyak Oleh, Sikora Janusz W., Jachowicz Tomasz

Advances in Science and Technology. Research Journal

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2019

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Vol. 13, no 4

264--269

EN

The effect of grooves number in the feed section and screw length as well as filler nature and content on the productivity of single-screw extruder has been examined. Compositions based on polypropylene with glass fibers, talc and chalk were used for research. It is established that the number of grooves in the feed section and the length of the screw differently affect the productivity of a single screw extruder depending on the nature and content of the filler. This effect is shown to be most significant for polypropylene compositions with mineral powders (talc and chalk).

4

Effect of small additives of polyamide modified by polyvinylpyrrolidone and montmorillonite on polypropylene technological properties and heat resistance

Krasinskyi Volodymyr, Suberlyak Oleh, Kochubei Viktoria, Klym Yurii, Zemke Viktoria, Jachowicz Tomasz

Advances in Science and Technology. Research Journal

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2018

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Vol. 12, no 2

83--88

EN

The effect of small polyamide additives modified with polyvinylpyrrolidone and montmorillonite on polypropylene technological properties and heat resistance has been researched in the work. It has been determined that the melt flow index of the obtained composites increases by more than 2 times in comparing with pure PP. It has been shown that adding a small amount of polyamide modified by montmorillonite-polyvinylprolidone mixture to polypropylene significantly increases heat resistance of the material. The displacement of the beginning of thermal-oxidation destruction and burning samples into the range of higher temperatures on 114-123oC, dependently on the modified polyamide content has been observed.