Brief introduction:
Silicon resin is a kind of thermosetting polysiloxane polymer with high crosslinking structure. It is also a new kind of halogen-free, drip-proof and environment-friendly flame retardant. Because of its special inorganic-organic structure, compared with other organic resins, it has excellent heat resistance, cold resistance, weather resistance, electrical insulation, hydrophobicity and anti-stick demoulding properties.

Flame retardant principle of silicone resin
Silicone flame retardant mechanism of silicon resin based on Si - O - Si structure as the main chain, side group (such as methyl phenyl, vinyl and hydroxyl, etc.) and silicon atoms bonding of a typical inorganic organic hybrid polymer materials, generally contain only carbon, hydrogen, oxygen, silicon, four kinds of elements, so in the process of burning, it can produce water, carbon dioxide decomposition and silicon dioxide.
The silicone resin is heated or catalyzed by hydrolysis and condensation, and cured into a three-dimensional network structure, insoluble and insoluble thermosetting resin. Under combustion or high temperature, the pyrolytic products form a relatively smooth and compact hard shell layer evenly covering the surface of the combustible, improving the flame retardant of the composite material: one is to prevent the combustible melting dripping effect; The second is to form a diffusion shielding layer, preventing the internal polymer material in high temperature thermal decomposition of vaporized organic matter diffusion to the combustion zone; Third, it has good heat insulation effect and can block heat transfer in the combustion process. The flame retardancy of polymer materials can be realized by the combined action of various effects, and the flame retardancy is realized according to the condensed matter flame retardancy mechanism.