This application relates to an aging-resistant cable, comprising a conductor and an
insulation layer. The
insulation layer comprises the following components:
polyvinyl chloride (PVC),
cerium dioxide,
lauric acid, 4-amino-2,2,6,6-tetramethylpiperidine, benzoylacetone, oxaloyl
chloride,
triethylamine,
anhydrous ethanol, an
antioxidant, and an
ultraviolet absorber. It also relates to a
processing method for the aging-resistant cable. This application has the following advantages and effects: The reaction of
cerium dioxide with
lauric acid allows
metal ions and carboxyl groups to form coordinate bonds, achieving chemical anchoring and generating hydrophobic
rare earth carboxylates, improving compatibility with PVC, inhibiting
nanoparticle aggregation, promoting uniform dispersion, and providing thermal and light stabilization. Furthermore, the reaction of 4-amino-2,2,6,6-tetramethylpiperidine, benzoylacetone, and oxaloyl
chloride yields a free radical
scavenging ability with
metal chelating capacity and hindered amines, enhancing the thermal and photo-oxidative
aging resistance of the PVC cable material.