Wpływ dodatku oligosilseskwioksanów klatkowych T8 na właściwości mechaniczne kauczuku silikonowego

A. Wojtas; M. Zaborski; A. Kosmalska

Published : 2010-03-30

Vol. 55 No. 3 (2010)

The influence of cellular T8 oligosilsesquioxanes on mechanical properties of silicone rubber

A. Wojtas M. Zaborski A. Kosmalska

Abstract

The blends of methylvinylsilicone rubber with fumed silica additionally filled with particles of cellular silsesquioxanes (POSS) (Table 1) were prepared. The compositions were cured with dicumyl peroxide. Particle size and particle size distribution of POSS used were characterized (Fig. 1, 2) as well as Zeta potential as a function of pH of aqueous dispersion (Fig. 3) and rheological properties (Table 2). The effect of addition of oligosilsesquioxane on the characteristics of the material prepared was evaluated on the basis of crosslinking density (Table 3), tensile strength (Table 4) and hysteresis (Table 5) and relaxation (Table 6) properties of vulcanizates. It was found that monovinyl(isobutyl)-POSS increased the tensile strength and crosslinking density of the rubber obtained.

Keywords

kauczuk silikonowy ; oligosilseskwioksany ; właściwości mechaniczne silicone rubber ; oligosilsesquioxanes ; mechanical properties

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Wojtas, A., Zaborski, M., & Kosmalska, A. (2010). The influence of cellular T8 oligosilsesquioxanes on mechanical properties of silicone rubber. Polimery, 55(3), 208–214. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1003

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