The effect of antioxidants on the surface oxidation and surface cracking of crosslinked polydimethylsiloxane

摘要

Crosslinked polydimethylsiolxanes with three different chain-breaking antioxidants(Irganox 1076, Irganox 565 and Tinuvin 770) were exposed to air plasma(GHz), and the surface structures of the exposed samples were assessed by contact angle measurements, X-ray photoelectron spectroscopy, optical and scanning electron microscopy, and surface profilometry before and after uniaxial Stretching. It was found that samples containing antioxidants oxidized more slowly than the sample with no antioxidant.