Adding Antioxidants To Household Air Switch Covers

Additives whose primary function is to inhibit the thermal oxidative degradation of polymer resins belong to the category of antioxidants. Antioxidants are the most dominant type of household air switch cover stabilization additives, and almost all polymer resins are involved in antioxidant applications.

Selecting Right Antioxidants For Household Air Switch Covers

According to the mechanism of action, traditional antioxidant systems generally include primary antioxidants, auxiliary antioxidants, and heavy metal ion passivation. The main antioxidant to capture polymer peroxy radicals as the main function, also known as "peroxy radical capture agent" and "chain termination type antioxidant", involves aromatic amine compounds and hindered phenolic compounds two series of products. Auxiliary antioxidants have the role of decomposing polymer peroxide compounds, also known as "peroxide decomposers", including this dicarboxylic acid esters and phosphite compounds, usually used in conjunction with the main antioxidant. A heavy metal ion passivation agent is commonly known as an "anti-copper agent", can complex transition metal ions to prevent them from catalyzing the oxidative degradation of polymer resins, typical structures such as hydrazide compounds.

The Latest Antioxidants For Household Air Switch Covers

In recent years, with the in-depth research of polymer antioxidant theory, the classification of antioxidants has also undergone certain changes, the most prominent feature is the introduction of the concept of "carbon radical trapping agent". This radical trapping agent is different from the traditional sense of the main antioxidant, they can capture polymer alkyl radicals, equivalent to the traditional antioxidant system in the establishment of an additional line of defense. Such stabilization additives are now reported mainly include aryl benzofuranones, bisphenol monoacrylates, hindered amines and hydroxylamines, etc., they and the main antioxidant, auxiliary antioxidants with the composition of the ternary antioxidant system can significantly improve the antioxidant stabilization effect of household air switch covers.