Common polysilazanes
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1. All Hydropolysilazanes (PHPs)
The polymer is pure Si-N-H polymer cured pure SiOx coating without carbon atoms; Surface properties: hydrophilic. Reaction of total polysilazanes under heating and UV
2. Organic polysilazane (OPSZ)
The polymer is Si-N-H polymer containing organic substituents after curing containing C- SiOx coating; High temperature baking can reduce carbon residue;
Surface properties: hydrophobicity
Si-NH-Si bond can be cured at room temperature, and the main reactions involved in curing are the hydrolysis and oxidation of Si-NH-Si. At the same time, Si-NH-Si bond is easy to react with the -OH on the surface of the substrate, resulting in a good binding force with the substrate.
