Table1.

List of the used materials.

Materials	Company (country)	Description
Hexagonal boron nitride (h-BN)	Pishro Ceramic Mehr (Iran)	Average size: 500 nm–1 μm
Silicone rubber (HTV)	Wacker (Germany)	With dicumyl peroxide (DCP) as curing agent
Sodium hydroxide	Dr Mojalali (Iran)	Flakes (USP)
Vinyl trimethoxy silane	SISIB (china)	Industrial grade
Ammonium hydroxide	Dr Mojalali (Iran)	Concentration: 25%
Absolute ethanol	Pars alcohol (Iran)	Concentration: 99.8%
Ethanol	Pars alcohol (Iran)	Concentration: 70%