METHOD OF IMPROVING ADHESION TO METALS OF SILICON COMPOSITE MATERIALS, OBTAINED BY REACTION OF POLYADDITION Russian patent published in 2014 - IPC C08L83/00 C08K9/02 

FIELD: chemistry.

SUBSTANCE: invention relates to silicon composite materials. A method of improving adhesion to metals of silicon composite materials includes obtaining by a polyaddition reaction of a composite material, containing polydimethylsiloxane with terminal vinyl groups of the general formula (CH₂=CH)(CH₃)₂Si-[O-Si(CH₃)₂-]_nO-Si(CH₃)₂(CH=CH₂), where n=1280÷1300, a weight part of vinyl groups constitutes 0.08÷0.095 wt %, dynamic viscosity is 54000÷55000 cp; a silicone resin of the general formula {[(CH₃)₃SiO_1/2]_x[SiO₂]₁[(CH₃)₂SiO]_y[CH₃VinSiO]_z}, where x=0.9÷1.2, y=0÷0/4, z=0.1÷0.4; halloysite and a filling agent. As the filling agent used is aluminium oxide, metallised with iron.

EFFECT: invention ensures obtaining the heat resistant silicone composite material, possessing higher adhesion to metal at a temperature of 500°C.

6 ex