Bazyláková, Tatiana

Liptáková, Tatiana

Moricová, Katarína

Olšovský, Milan

Ondrušová, Darina

Pajtášová, Mariana

Ľalíková, Slávka

English

DSpace at VSB Technical University of Ostrava

/TINLIBl . i Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava číslo 1, rok 2009, ročník LIi, řada hutnická článek č. 1452 THE STUDY OF PROPERTIES OF NANOFILLERS ON THE BASIS OF NATURAL CLAY MINERALS AND THEIR APPLICATION IN POLYMER MATERIALS S. CALÍKOVÁ10,M. PAITÁŠOVÁ1,D. ONDRUŠOVÁ1, T. LIPTÁKOVÁ2, T. BAZYLÁKOVÁ1, M. OLŠOVSKÝ1, K. MORICOV N1 Facu/ty of lndustrial Technologies, Alexander Dubi!d University of Treni!Jn; Púchov, S/avale RepubUc,contact author: /a/ikova@fpt.tnuni.sk 2 Facu/ty o/ Mechanica/ Engineering, University of Žilina; Žilina, Slovak RepublicABSTRACT: This work deals with the at>plication of inorganfo substances, specifically natural clay minerals, which are an important group of nanomaterials in organic polymers [ 1]. Their use improves physical-mechanical properties and quality of final vulcanizates. Main advantage of nanocomposites is improvement of properties of final products, which are especially increased by structural fortresses and modules near lower content of inorganic ingredients [2,3]. Nanocomposite materials were prepared on the basis of natural clay minerals and they were characterized by thermal and spectral methods. Then we compared found physical-mechanical properties and vulcanization characteristics of nanocomposites to commercially used polymer materials of original composition. KEY WORDS: clay minerals, nanofillers, nanocomposites, polymer materials, physical-mechanical properties 1. INTRODUCTIONNatural inorganic fillers like talc, m.ica, chalk and bentonite are added to thermoplastics and thermosetting polymers in a number of situations. The main objectives of producing these polymer composites are the reduction of industrial costs and also the modification of certain characteristics such as stiffness, electrical insulation, thermal stability and optical properties [4]. However, in the majority of cases the increasing interest devoted to polymer-clay composites arises from the fact that delamination of relatively low amount of clay gives us the possibility to modify drastically not only mechanical properties of the polymer but also some of its physical properties [3], Bentonite is a clay rock with dominant content of minerals from a group of smectites, most frequently montmorillonite, less beidellite, hectorite and saponite. The structure of montmorillonite with large substitution of Si4+ in the tetrahedral sheets, but especially of Al3+ in the octahedral sheet with poor bonding powers between basic structural elements leads to specific properties ofbentonite [5]. 2. EXPERIMENT2.1 Characterization of the additive The natural bentonite used in this study, denoted as P03 l was obtained from deposit in the area of Lieskovec, Slovak republic, with montmorillonite purity of 50 - 70 %. The chem.ical composition of natural bentonite (in wt. %) is following: SiO2: 65.0, FeiO3: 7.0, CaO: 1.5, MgO: 2.0. A loss on ignition was 7.0 %. The grain curve of bentonite is presented in Fig. 1. This commercial product from firm Envigeo inc. was submitted to measurements ofthermal (DTA, TG) and spectral (FTIR, XRD) analysis. 113 

The study of properties of nanofillers on the basis of natural clay minerals and their application in polymer materials

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The study of properties of nanofillers on the basis of natural clay minerals and their application in polymer materials

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