Studies on the effect of curing conditions on the curing rate and mechanical properties of moisture-cured poly(urethane-urea) elastomers containing oligocarbonate segments

J. Kozakiewicz; G. Rokicki; J. Przybylski; K. Sylwestrzak; P. G. Parzuchowski; K. M. Tomczyk

Published : 2011-08-30

Vol. 56 No. 7-8 (2011)

Studies on the effect of curing conditions on the curing rate and mechanical properties of moisture-cured poly(urethane-urea) elastomers containing oligocarbonate segments

J. Kozakiewicz G. Rokicki J. Przybylski K. Sylwestrzak P. G. Parzuchowski K. M. Tomczyk

Abstract

In this paper the results of studies on the effect of the curing conditions on the mechanical properties, appearance and curing rate of poly(urethane-urea) elastomer (PURE) obtained by moisture-curing of the corresponding urethane prepolymer (URE) synthesized from isophorone diisocyanate (IPDI) and oligocarbonate diol (OCD) are presented. OCD was synthesized from dimethyl carbonate and 1,6-hexanediol. A designed experiment was conducted where two parameters [curing temperature (Tc—X1) and relative air humidity (RH—X2)] were changed at the same time according to the standard 22 model. The results were analyzed by Statistica computer programme and were presented in the form of X1-X2 graphs. The graphs were produced for a set of Y parameters characterizing the properties of PURE (mechanical properties, curing rate and sample appearance). The Y = f(X1, X2) equations were also obtained. The results showed the distinct dependence of the curing rate and PURE properties on curing parameters and allowed to select a range of optimum curing conditions.

Keywords

elastomery poliuretanowe ; poli(uretano-mocznik) ; oligowęglanodiol ; 1,6-heksanodiol ; węglan dimetylu ; diizocyjanian izoforonu ; właściwości mechaniczne ; utwardzanie wilgocią polyurethane elastomers ; poly(urethane-urea) ; oligocarbonate diol ; 1,6-hexanediol ; dimethyl carbonate ; sophorone diisocyanate ; mechanical properties ; moisture curing

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Kozakiewicz, J., Rokicki, G., Przybylski, J., Sylwestrzak, K., Parzuchowski, P. G., & Tomczyk, K. M. (2011). Studies on the effect of curing conditions on the curing rate and mechanical properties of moisture-cured poly(urethane-urea) elastomers containing oligocarbonate segments. Polimery, 56(7-8), 564–570. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/946

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J. Kozakiewicz polimery@ichp.pl

G. Rokicki

J. Przybylski

K. Sylwestrzak

P. G. Parzuchowski

K. M. Tomczyk