A new approach towards “active” self-healing coatings: exploitation of microgels

Self-healing coatings in anti-corrosion applications

“…Then, the liquid corrosion inhibitor is entrapped in the solid matrix. This way of obtaining self-repairing coatings is considerably simpler than that of producing coatings with containers [77].…”

Nanostructured Colloidal Particles by Confined Self-Assembly of Block Copolymers in Evaporative Droplets

“…Mohwald et al reported that the hollow particles were prepared by LBL assembly using charged polymer such as poly(diallyldimethylammonium chloride), poly(allylamine hydrochloride), or poly(styrene sulfonate) onto the charged silica or PS particles (Caruso et al, 1998a,b;Caruso and Mohwald, 1999;Shchukin and Mohwald, 2006). After removal of the cores in the particles, the hollow structured particles were obtained, which can be applied as biomaterials such as drug delivery carriers or self-healing (Peyratout and Dahne, 2004;Ma et al, 2005;Rivera Gil et al, 2008;Delcea et al, 2011;Latnikova et al, 2012;Yan et al, 2014). Although the structured particles prepared by mini-emulsion polymerization or LBL technique have narrow size distribution, the methods have been limited to control the inner nanostructure of the BCP particles.…”

“…In addition, hollow particles have been used in bio-application such as self-healing. Mohwald group reported that hollow polymer particle with onionlike nanoshell structure can be employed in bio-related application such as nanocapsule and self-healing (Sukhorukov et al, 2005;Grigoriev et al, 2009;Delcea et al, 2011;Latnikova et al, 2012). Structured spheres with periodic radial variation of the refractive index have attracted much attention due to their potential uses as spherical dielectric resonators in cavity quantum electrodynamics, optical switches, and limiters (Babin et al, 2003;Gourevich et al, 2006;Petukhova et al, 2008;Zhang et al, 2008a;Burlak et al, 2012).…”

Anticorrosion Coatings with Self-Recovering Ability Based on Damage-Triggered Micro- and Nanocontainers

“…122,123 Depending on the release of low-molecular side products, the interfacial polyaddition (without side products) or interfacial polycondensation (with) reactions can be discriminated. Initially, the reactants have sufficiently different polarities and are predominantly soluble only in one of the coexisting phases excluding their interpenetration in the adjacent phase and premature reaction between them.…”

“…123 Formation of the compact morphology can be explained as a result of the high affinity of MeBT to the polymer network. This type of containers made of polyurea and the corrosion inhibitor 2-methylbenzothiazole (MeBT) was used in the self-protecting anticorrosion coatings for the aluminum substrate.…”