Organosilicone resin, a thermosetting polysiloxane polymer with a highly cross-linked structure, has a complex and delicate compositional structure. It is usually produced from various mixtures of methyltrichlorosilane, dimethyl dichlorosilane, phenyltrichlorosilane, diphenyl dichlorosilane, or methylphenyldichlorosilane through a series of chemical reactions under specific conditions. In its structure, organic groups are intertwined with inorganic silicon-oxygen-silicon main chains, creating a unique presence that possesses both organic properties and incorporates inorganic functions.
In terms of performance, silicone resins exhibit impressive thermo-oxidative stability. After 24 hours at 250°C, silicones lose only 2% - 8% of their weight, compared to 55.5% for polycarbonate, 65.6% for polystyrene and 22.7% for epoxy resins. When the temperature is raised to 350°C and heated for 24 hours, the weight loss of typical organic resins is typically 70 - 99%, whereas silicone resins have a weight loss of less than 20%. This means that it can be used stably for long periods of time at 200 - 250°C without decomposition or discoloration, and for short periods of time it can even withstand temperatures of up to 300°C. When combined with heat-resistant pigmented fillers, the resulting coatings can withstand even higher temperatures.
Room termperature curing polysilazane, pls check
IOTA 9150,
IOTA 9150A.
High termperature curing polysilazane, pls check
IOTA 9108,
IOTA 9118.