Silicone resin has long temperature self-drying type and high temperature curing type, in order to accelerate curing can add a small amount of diethylene triamine or triethylene tetramine, paint film gradually began to harden even if the beginning of curing, diethylene triamine or triethylene tetramine only as a drier dosage is very little, after practice to determine its dosage. So, what is the common curing agent of silicone resin? Next, the new Jiayi Xiaobian will give you a detailed introduction.
High temperature curing is generally at a lower temperature to volatilize the solvent, and then in 160-180 degrees of drying, curing at 220 high temperature. Is a highly crosslinked network structure of polyorganosiloxane, usually with a variety of mixtures of methyl trichlorosilane, dimethyl dichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane or methyl phenyldichlorosilane, in the presence of organic solvents such as toluene, at a lower temperature and water decomposition, acid hydrolysate. The initial product of hydrolysis is a mixture of ring-shaped, linear, and cross-linked polymers, usually containing considerable hydroxyl groups. The hydrolysate was washed to remove the acid, and the neutral primary polycondensation was oxidized in air or further condensed in the presence of catalyst to form a three-dimensional network structure with high cross-linking.