Nowe nadtlenki organiczne jako substancje sieciujące elastomery

M. Zaborski; M. Skurska; M. Przybyszewska; T. Pingot; J. Zawadiak; B. Orlińska; D. Gillner

Published : 2010-04-30

Vol. 55 No. 4 (2010)

New organic peroxides as the agents curing elastomers

M. Zaborski M. Skurska M. Przybyszewska T. Pingot J. Zawadiak B. Orlińska D. Gillner

Abstract

The blends of butadiene-acrylonitrile rubber (HNBR) and ethylene-propylene rubber (EPM) were prepared and then cured with various amounts of peroxides as follows: traditionally used dicumyl peroxide (DCP) or new organic peroxides, synthesized by us, i.e. dibutyl-2,6-diisopropylnaphthalene peroxide (DBNP), 2-isopropylnaphthalene peroxide (2IPNP) or diisopropylnaphthalene peroxide (DIPNP) (Table 1). The values of scorching time τ 02 (Table 2) and activation energy of the curing reactions of blends were determined. Curing density and efficiency were evaluated (Table 3, Fig. 2). The effects of different amounts of various curing co-agents [zinc dimethacrylate (DMZn) or zinc diacrylate (DAZn)] and a filler (pyrogenic silica) on the characteristics of vulcanizates were investigated (Fig. 1, 3, Table 5, 7). The mechanical properties of HNBR and EPM vulcanizates, cured with peroxide DCP or new peroxides (Table 4, 6) and containing or not a coagent and a filler, were compared. It has been found that commercial DCP can be replaced in curing reactions with other organic peroxides what let obtain the materials with higher curing density and better mechanical properties.

Keywords

uwodorniony kauczuk butadienowo-akrylonitrylowy ; kauczuk etylenowo-propylenowy ; nadtlenek dikumylu ; nowe nadtlenki organiczne ; sieciowanie ; właściwości hydrogenated butadiene-acrylonitrile rubber ; ethylene-propylene rubber ; dicumyl peroxide ; new organic peroxides ; curing ; properties

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Zasady cytowania

Zaborski, M., Skurska, M., Przybyszewska, M., Pingot, T., Zawadiak, J., Orlińska, B., & Gillner, D. (2010). New organic peroxides as the agents curing elastomers. Polimery, 55(4), 293–298. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1010

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M. Zaborski polimery@ichp.pl

M. Skurska

M. Przybyszewska

T. Pingot

J. Zawadiak

B. Orlińska

D. Gillner