Papers - Archive

Nr 1/2016 - Abstracts

Elastomery nr 1/2016 cover

Sylwia Krzemińska, Władysław M. Rzymski

Materials from XNBR latex for protective gloves

The effect of the layered silicate type applicated to carboxylated acrylonitrile-butadiene rubber latex (LXNBR) on mechanical and barrier properties of latex membrane materials was studied. The bentonite modified with ammonium salts (Nanobent ZR-1 or Specjal S-90) was used. XNBR latex was crosslinked conventionally with sulfur (1.5 phr). The resistance to puncture, cut, tear and abrasion and barrier properties to mineral oils was investigated. The application of nanofillers in the amount of 10 phr to XNBR latex caused no significantly change of barrier and mechanical properties for crosslinked membranes. The resistance to mineral oils was the same, regardless of the filler type. In terms of mechanical parameters it was preferable to use bentonite Bentonit Specjal S-90, because prepared nanocomposite meets the requirements of abrasion, cut and puncture resistance for multifunctional protective gloves.
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Aneta Stępkowska, Dominik Kowalczyk

Polycyclic aromatic hydrocarbons (PAHs) in carbon black

The subject of the study was selected carbon black used in rubber technology. The paper presents the results of investigations of fifteen PAHs listed by EPA in carbon black by HPLC-FLD: Naphthalene (Nap), Acenaphthene (Acp), Fluorene (Flu), Phenanthrene (PA), Anthracene (Ant), Fluoranthene (Fl), Pyrene (Pyr), Benzo(a)anthracene (BaA), Chrysene (Chr), Benzo(b)fluoranthene (BbF), Benzo(k) fluoranthene (BkF), Benzo(a)pyrene (BaP), Dibenzo(a,h)anthracene (DahA), Benzo(g,h,i)perylene (BghiP), Indeno(1,2,3-cd)pyrene (Ind). The total concentration of 15 PAHs varied between 60.78-165.88 mg/kg. Benzo(a)pyrene, the most carcinogenic polyarene, was detected in extracts of all tested carbon black at levels ranging from 0.03 mg/kg to 3.37 mg/kg.
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Konrad Kwiatkowski, Paweł Michalski

Tribological proper ties of polyurethane elastomers - comparison of two abrasive test methods

The aim of the study was to investigate the abrasive wear of polyurethane elastomers (PUR), both commercial and laboratory made. Polyurethane elastomers have been synthesized in one-step or two-steps reaction. An abrasive wear resistance was determined with a Grasselli and Schopper methods. The methodology of measurement and comparative analysis of the results were explained.

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