The appearance generates a stable maintenance layer, but when using silicone resin alone, the intermolecular force is relatively small, the adhesion is poor, and the price is relatively high. Silicone resin is an indispensable base material for high temperature resistant powder coatings.

Due to their higher bond energy, silicone resins have higher oxidation stability and can be used in coatings. High temperature resistant special resin and high temperature resistant pigments and fillers form high temperature resistant plastic powder, which is commonly used for spray coating on the surface of ovens, guardrails, automobile brake pads and exhaust pipes.

Because of their high temperature resistance, they are widely used in chemical, petroleum, metallurgical, aviation and other industries. In high temperature resistant powder coatings, silicone bonding powder coatings Factory resins are indispensable. At present, silicone resins used in high temperature resistant powder coatings are mainly divided into the following two types: Methyl polysiloxane, its characteristics are: good hardness; good water repellency; low appearance and non-stick effect;-good yellowing resistance at high temperature; but poor miscibility with other organic resins.

At present, heat-resistant powder coatings are still dominated by organic silicon powder coatings. Silicone resin can be used as a base material alone or combined with polyester and epoxy resin to improve the high temperature resistance of the coating film. At the same time, high-temperature resistant inorganic pigments and fillers and appropriate additives should also be selected in the formulation.. We know that silicone resins are mainly based on silicon-oxygen bonds

امتیاز بدهید :