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Effectively Exerting the Reinforcement of Polyvinyl Alcohol Nanocomposite Hydrogel via Poly(dopamine) Functionalized Graphene Oxide by Elnaz Famkar; Gholamreza Pircheraghi; Hossein Nazockdast is a Engineering article available to read on EtoBox.
What is Effectively Exerting the Reinforcement of Polyvinyl Alcohol Nanocomposite Hydrogel via Poly(dopamine) Functionalized Graphene Oxide about?
Nature-inspired coating with polydopamine (PDA) is a promising way to improve the performance of graphene oxide (GO) based nanocomposites due to its high ability to enhance interactions in matrix-disperse systems. Here, we examined the capability of two types of PDA to develop the reinforced polyvinyl alcohol (PVA)/GO hydrogels. In the first mode, dopamine hydrochloride was polymerized as nanoparticles and then incorporated into PVA solution with GO nanoplatelets (P-NG hydrogel). In the second mode, polydopamine was polymerized in the presence of GO nanoparticles to obtain PDA surface-modified GO and then PVA nanocomposite hydrogel (P-CG sample). Rheological and tensile findings revealed that both types of PDA could act as a coupling agent and dramatically ameliorate viscoelastic and mechanical properties through establishment of hydrogen bonds and π-π interactions with the composite components. Also, PDA made the PVA-GO interfacial adhesion robust, leading to excellent self-healing properties. The outputs indicated that PDA in direct coated state could present better efficiency compared to the PDA nanoparticles. Moreover, porous network structure size in P-CG was smaller compared
Who reads Effectively Exerting the Reinforcement of Polyvinyl Alcohol Nanocomposite Hydrogel via Poly(dopamine) Functionalized Graphene Oxide?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Elnaz Famkar; Gholamreza Pircheraghi; Hossein Nazockdast
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)