Anti-corrosion hybrid coatings based on epoxy–silica nano-composites: Toward relationship between the morphology and EIS data

Synthesis of Polyurethane/Silica Modified Epoxy Polymer Based on 1,3-Propanediol for Coating Application

“…The mixture was vigorously stirred for 1 h at room temperature. After the transparent sol solution was formed, the excess solvent was removal by evaporation [23]. The next step, the epoxypolyurethane was reacted with a crosslinker agent, aminopropyltriethoxysilane (APTES) with ratio 1% (w/w) of the total epoxy (3.05 g).…”

Development of hybrid coatings for osseointegration improvement of metal dental implants

“…From a regenerative medicine point of view, the process of bone repair after the injury starts with the bleeding process from contiguous structures and a haematoma is formed 23 . A cascade of events follow to continue the physiologic mechanism, inflammation, angiogenesis and granulation tissue formation, fibrous tissue formation, fibrocartilage, hyaline cartilage (soft callus), cartilage mineralization, woven bone (hard callus) and finally remodeling that can take several months to be accomplished 23,26 .…”

“…A cascade of events follow to continue the physiologic mechanism, inflammation, angiogenesis and granulation tissue formation, fibrous tissue formation, fibrocartilage, hyaline cartilage (soft callus), cartilage mineralization, woven bone (hard callus) and finally remodeling that can take several months to be accomplished 23,26 .…”

“…19 Another source of Si can be its use directly as orthosilicic acid (Si(OH) 4 as silicates are poorly soluble and usually form silicic acid or uncharged molecules in order to dissolve. 20,21,22,23,24,25 The employment of a bio-absorbable osteoconductive coating on different kinds of prosthesis that release silicon during its degradation process represents an extra strategy to provide silicon to the bone damage area stimulating osteoblastic activity.…”

“…On the other hand, it was stated that the TiO 2 /Ti interface has an O/Ti concentration ratio that became smaller from the surface oxide film to the bulk, this high affinity of titanium to oxygen is beneficial for the regenerating process of the protective oxide layer (Figure 1.7) 51,52 . The bioactive properties of titania (TiO 2 ) are so marked that many studies were made to use this material as a biologic additive to enhance biomaterials performance 53,54,5,44,55,23,56 . …”