Search results for "Photo- and thermo- oxidative stabilization"

Photo- and thermo- oxidative stabilization of polymer-based nanocomposites through the incorporation of CNTs with in-built antioxidant activity

2017

Antioxidant molecules are physically immobilized onto multi-walled carbon nanotubes (CNTs) surface and the resulting hybrid-nanoparticles are used to prepare Ultra High Molecular Weight PolyEthylene-based nanocomposite with enhanced photo- and thermo- oxidation resistance. Natural phenols derivatives, such as quercetin and α-tocopherol, are known to be an excellent antioxidant for polyethylene, but when they are physically immobilized on CNTs the stabilizing activity strongly increase. This is due to a synergic effect stemming from the physical interaction between the antioxidants and CNTs, which cannot provide a similar stabilizing action if used separately. In particular, it is proposed t…