Sieciowanie kauczuku chloroprenowego tlenkiem cyny

A. Smejda-Krzewicka; W. M. Rzymski; D. Kowalski

doi:10.14314/polimery.2015.186

Published : 2015-03-30

Vol. 60 No. 3 (2015)

Tin oxide cross-linking of chloroprene rubber

A. Smejda-Krzewicka W. M. Rzymski D. Kowalski

DOI: https://doi.org/10.14314/polimery.2015.186

Abstract

A new method of cross-linking chloroprene rubber (CR) with tin oxide (SnO) is presented. From the viewpoint of the mechanical properties, the optimal SnO contentis between 1 and 2 phr of CR (Table 1, Fig. 1), i.e. definitely less than the amount of ZnO and MgO typically used in CR cross-linking. CR vulcanizate cured with tin oxide demonstrates significantly higher tensile strength than CR cross-linked using a conventional mixture of ZnO and MgO. The determined values of equilibrium volume swelling and Mooney-Rivlin elasticity constants indicate a greater number of intermolecular cross-links. It was found that the incorporation of silica or carbon black into CR leads to an increase in the tensile strength of the vulcanizate crosslinked with 1 phr SnO (Table 2). Although the addition of kaolin to CR cured with SnO results in a slight decrease in the mechanical properties of vulcanizates, it causes a marked reduction of their flammability, as indicated by increase in the oxygen index value (Fig. 2).

Keywords

kauczuk chloroprenowy ; sieciowanie ; tlenek cyny ; palność chloroprene rubber ; cross-linking ; tin oxide ; flammability

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Smejda-Krzewicka, A., Rzymski, W. M., & Kowalski, D. (2015). Tin oxide cross-linking of chloroprene rubber. Polimery, 60(3), 186-191. https://doi.org/10.14314/polimery.2015.186

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A. Smejda-Krzewicka aleksandra.smejda-krzewicka@p.lodz.pl

Affiliation
Politechnika Łódzka, Instytut Technologii Polimerów i Barwników, ul. Stefanowskiego 12/16, 90-924 Łódź

W. M. Rzymski

Affiliation
Politechnika Łódzka, Instytut Technologii Polimerów i Barwników, ul. Stefanowskiego 12/16, 90-924 Łódź

D. Kowalski

Affiliation
Politechnika Łódzka, Instytut Technologii Polimerów i Barwników, ul. Stefanowskiego 12/16, 90-924 Łódź