Bazyláková, Tatiana

Jóna, Eugen

Liptáková, Tatiana

Ondrušová, Darina

Pajtášová, Mariana

Rudinská, Gabriela

Ľalíková, Slávka

DSpace at VSB Technical University of Ostrava

Sborník vědeckých prací Vysoké školy báňské-Technické univerzity Ostrava číslo 1, rok 2009, ročník LIi, řada hutnická článek č. 1450 STUDY OF NEW NITROSOAMINE-FREE VULCANIZATION SYSTEMS OF RUBBERCOMPOUND D. ONDRUŠOV Á1•, T. BAZYLÁKOV Á', M. PAJTÁŠOVÁ', E. JÓNA1, S. CALÍKOV Á1, G. RUDINSKÁ', T. LIPTÁKOVN1 Faculty o/ f11dustrial Technologies, Alexander Dublek University o/ Trenčín; Púchov, Slovak Republic,contact author: ondrusova@fpt.tnuni.sk 1 Faculty o/ Mecha11ical Engineering, University o/ Žilina; Žilina, Slovak RepublicABSTRACT: Creation of Nitrosamine-free vulcanization systems is one of the importánt environmental problems in the car tyres production. Presenť work deals with the creation of Nitrosamine-free vulcanization system of a· rubber compound for passenger car tyres. Its formation was provided by the substitution of commercially used benzothiazolic accelerator with some new accelerators on the base of Dithiophosphates which do not form dangerous Nitrosoamines. In the newly prepared ecologically modified vulcanization systems, the commercial -accelerator was substituted with new dithiophosphate accelerators in the according amount. In all of the prepared systems, low-aromatic oil (RAE) was used in the function of plasticizer. Vulcanization characteristics and physical-mechanical properties of newly prepared systems were compared to properties of commercial rubber compound for passenger car tyres. KEY WORDS: nitrosamine-free vulcanization system, dithiophosphate accelérator, vulcanization characteristics, physical-mechanical properties, passenger car tyres 1. INTRODUCTIONAt the present time one of the main priorities in rubber industry is ecologization of rubber compounds according to the high quality of products. The environmental requirements are narrowly connected to the environmental protection and mainly to the human health protection. So in the first position comes the replacement of dangerous substances with their ecological substituents. Many accelerators which are important components in all sulfur curing systems must be considered as critical from toxicological aspects. Accelerators, containing secondary amine fragments may form dangerous carcinogenic Nitrosarnines according to the reaction [1] R J-N=O + HN02 R Commercially used accelerators on the base of Dithiocarbamates and Benzothiazoles are classified among the problematic group accelerators containing secondary amine fragments (Fig. 1). Fig. 1: Accelerators containing secondary amine fragments: A - Dithiocarbamate, B - Benzothiazole 105 a 

Study of new nitrosoamine-free vulcanization systems of rubber compound

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Study of new nitrosoamine-free vulcanization systems of rubber compound

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