Silicone impregnated paint has the advantages of high heat resistance grade, but it has the disadvantages of high viscosity at room temperature, high temperature impregnation, poor adhesion and low mechanical strength. It can be modified by alkyd, epoxy and polyester to improve the performance of silicone impregnated paint.
Alkyd resin modified silicone resin, can adjust the film electrical strength, hardness and insulation and other comprehensive properties.
At the same time, alkyd resin modified silicone resin is helpful to improve other properties of silicone insulating paint.
Unsaturated polyester has a certain weatherability and insulation, and the application process is mature, often used in the modification of silicone resin, polyester modified silicone resin combined with the advantages of the two are favored, has been widely used in insulation impregnation paint.
In addition to alkyd resin and unsaturated polyester modified silicone resin, epoxy resin is one of the more important research fields in the modification of silicone resin. By introducing polar groups such as epoxy group and hydroxyl group, the mechanical properties and bonding properties of the resin can be improved, and the curing temperature of silicone resin can also be reduced