Catalytic Properties of Shungite in Reactions of Urethan Formation

摘要

The kinetics of urethane formation during interaction of phenylisocyanate with hydroxyl-containing oligomers in the presence of shungite was researched using the method of IR spectroscopy. The constants of the reaction rate were determined by kinetic curves plotted in coordinates of a second order equation. The kinetics of curing of polyurethane compositions of “cold” curing, modified by shungite, was studied using the method of rotational rheometry and it was shown that the presence of the latter leads to acceleration of the curing process.