ChemInform Abstract: EPOXYDERIVATE VON MUSKOVIT

Effect of silazane catalysts on properties of organosilicone lacquer coatings

“…They combine well the thermal stability of the silicon-oxygen skeleton and satisfactory physicomechanical properties of organic polymers [1][2][3]. The indicated characteristics as well as insulating and corrosion-resisting parameters of the coatings increase substantially after modification of the organosilicon matrix based on lacquer KO-921 (GOST 16508-70) with mineral fillers of the oxide and oxide-silicate types [4,5] and with polymers, specifically epoxy and furan resins [3,6].…”

“…However, this complicates considerably the technological process of protection of metal products and metal structures. This is why, to lower the structurization temperature of organosilicone composites down to 20-30~ curing catalysts and reactive cross-linking agents are added to them [1][2][3][4][5][6][7]. Previous investigations of the effect of curing agents on the formation of coatings based on polymethyl-phenylsiloxane lacquer showed that the addition of silazane catalysts into compositions is promising, since, on air drying, polysilazanes can form hard protective films.…”

“…It is well known [1,10,11] that the polycondensation of siloxanes proceeds with the involvement of OH groups; therefore, it is most reasonable to study IR absorption in the frequency range 3000-4000 cm-1. Since the spectra of all samples are analogous, we present only the spectrum of polymethylphenylsiloxane cured with KT-30 (Fig.…”