Preparation and Characterization of Micro/Nanocapsulescontaining TungOil and its Use in Self-Healing Coatings

Many researchers are interested to find new ways for extending the useful life cycle of coatings that this lead to life growth of structures and equipment [۱-۳]. In this study, the encapsulation process of Tung oil, as an oxidative healing agent, in poly-urea formaldehydewas presented.These micro/nanocapsules were synthesized by in-situ polymerization.That it may improve and open new view in the field ofcapsule synthesize and coating science.Such coatings typically incorporate micro/nanocapsules that contain film-formers; which polymerize in the presence of air and heal the crack.Efficacy of these micro/nanocapsules in healing of cracks in an epoxy coating [۴] and corrosion protection has been demonstrated.Also this method does not need to the catalyst that can solve theproblem of the major discontinuity in coating matrix because the existence of the catalyst.

کلیدواژه ها:

micro/nanocapsule ، urea–formaldehyde ، in situpolymerization ، tung oil