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The Role of Polyvinylpyrrolidone in the Formation of Nanocomposites Based on a Compatible Polycaproamide and Polypropylene

Volodymyr Krasinskyi1, Oleh Suberlyak1, Victoria Zemke1, Yuri Klym1, Ivan Gaidos2
1 Lviv Polytechnic National University, 12, S.Bandery St., 79013 Lviv, Ukraine 2 Technical University of Kosice, 74 Mäsiarska, Kosice, Slovakia
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The interrelation of physico-mechanical and technological characteristics of newly created nanocomposites on the basis of polypropylene (PP)/polyamide (PA-6) mixture with PVP-modified montmorillonite has been investigated. The significant impact of modified polyamide on technological, physical and mechanical properties and heat resistance of polypropylene has been determined. It has been established that the melt flow index of the resulting composites increases by more than 2 times, compared with pure PP. The hardness, modulus of elasticity and heat resistance of composites were found to be considerably increased in comparison with pure PP due to polypropylene mixing with modified polyamide. At the same time, the percent elongation and the forced-elastic strain of composites are reduced by 2 times.

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