Abstract:Nano titania (nTiO 2) aggregated graphene oxide (GO) hybrid nanostructures were successfully prepared by employing 3-(Aminopropyl) triethoxysilane (APTES)-modified nTiO 2 as precursor material. The resulting self-assembled core-shell hybrid structure was observed to have hierarchical porous structure with nTiO 2 forming the core and GO forming the shell in accordance with transmission electron micrographs. The mechanical properties of the hybrid composites were compared with that of individual GO and nTiO 2 lo… Show more
“…Synthesis of porous and self‐assembled EP/nano titania (TiO 2 )‐GO nanocomposites was performed by Jayan et al [ 146 ] The schematic of the porous core‐shell hybrid structure is presented in Figure 9. This research team reported that the addition of the hybrid nanofillers enhanced the fracture toughness of EP by approximately 200%.…”
Section: Toughening Of Epoxy Resins Using Hybrid Of Carbonaceous Nano...mentioning
confidence: 99%
“…Schematic representation of the porous core‐shell hybrid nano titania‐graphene oxide (TiO 2 ‐GO) structure. [ 146 ] With kind permission from John Wiley & Sons, Inc.…”
Section: Toughening Of Epoxy Resins Using Hybrid Of Carbonaceous Nano...mentioning
Epoxy resins (EPs) exhibit various extraordinary properties, including significant mechanical and thermal properties, low shrinkage, and high chemical resistance, opening a wide window of different applications such as adhesives, paints, coatings, etc. By contrast, EPs also have the undesirable behavior of being brittle and cannot sufficiently resist against the initiation and growth of cracks. Efforts are being made to enhance the toughening of EPs without sacrificing their other desirable properties. With the advent of nanotechnology, improving the toughening of EPs has gained momentum by incorporating different modified and unmodified nanofillers into these polymers. Since the discovery of carbonaceous nanofillers, especially carbon nanotubes (CNTs) and graphene (Gr), significant progress has been made in the development of EP‐based composites incorporating these nanofillers and their hybrids. The current review presents research progress during the last six years on the toughening of EPs using CNTs, Gr, and CNT‐Gr hybrids. Special attention is given to the chemical functionalization of these nanofillers, which has been demonstrated over and over again to significantly affect nanofiller dispersion in the EP matrix and subsequently its fracture properties. Details on the various toughening mechanisms of EP‐based composites are further provided.
“…Synthesis of porous and self‐assembled EP/nano titania (TiO 2 )‐GO nanocomposites was performed by Jayan et al [ 146 ] The schematic of the porous core‐shell hybrid structure is presented in Figure 9. This research team reported that the addition of the hybrid nanofillers enhanced the fracture toughness of EP by approximately 200%.…”
Section: Toughening Of Epoxy Resins Using Hybrid Of Carbonaceous Nano...mentioning
confidence: 99%
“…Schematic representation of the porous core‐shell hybrid nano titania‐graphene oxide (TiO 2 ‐GO) structure. [ 146 ] With kind permission from John Wiley & Sons, Inc.…”
Section: Toughening Of Epoxy Resins Using Hybrid Of Carbonaceous Nano...mentioning
Epoxy resins (EPs) exhibit various extraordinary properties, including significant mechanical and thermal properties, low shrinkage, and high chemical resistance, opening a wide window of different applications such as adhesives, paints, coatings, etc. By contrast, EPs also have the undesirable behavior of being brittle and cannot sufficiently resist against the initiation and growth of cracks. Efforts are being made to enhance the toughening of EPs without sacrificing their other desirable properties. With the advent of nanotechnology, improving the toughening of EPs has gained momentum by incorporating different modified and unmodified nanofillers into these polymers. Since the discovery of carbonaceous nanofillers, especially carbon nanotubes (CNTs) and graphene (Gr), significant progress has been made in the development of EP‐based composites incorporating these nanofillers and their hybrids. The current review presents research progress during the last six years on the toughening of EPs using CNTs, Gr, and CNT‐Gr hybrids. Special attention is given to the chemical functionalization of these nanofillers, which has been demonstrated over and over again to significantly affect nanofiller dispersion in the EP matrix and subsequently its fracture properties. Details on the various toughening mechanisms of EP‐based composites are further provided.
“…12 . In one of our studies, we have utilized the technique of EDAX to analyze the elements present in the self-assembled nano porous core-shell TiO 2 -GO hybrid material [ 86 ]. Fig.…”
Section: Characterization Of Superhydrophobic Coatingsmentioning
confidence: 99%
“…The self-cleaning properties were analysed by coating DE, DE/TiO 2 and DE/TiO 2 /rGO on glass substrates. In one of our works, we have made porous titnia-GO hybrids [ 86 ], whose self-cleaning properties are under evaluation. Fan et al [ 109 ] utilized hierarchical nano-needle like arrangements of GO@Cu Silicate for self-cleaning applications.…”
“…The application of polymer-layered nanoparticle composites has been recently increased in engineering structures due to the development of beneficial and functional properties like their high strength-to-weight ratio, corrosion resistance, proper thermal insulation, low thermal expansion, etc. [1][2][3][4] Epoxy resins are among the most widely used substances in the production of polymeric composites. [5][6][7] The mechanical and thermal properties of epoxy resins are related to the microstructure and cross-linked network formed during the curing process.…”
In this study, non‐isothermal curing kinetics of the prepared samples was studied using differential scanning calorimetry (DSC) to evaluate the effect of methyl phenyl silicone resin (MPS), acrylonitrile butadiene styrene (ABS), and graphene oxide (GO) on the cure reaction of epoxy resin. Chemical and microscopic structure of prepared nanocomposites was investigated using Fourier‐transform infrared spectrophotometry (FTIR) and scanning electron microscopy (SEM), respectively. Izod impact strength of modified epoxy resin with 5 phr MPS, 2 phr ABS, and 0.1 phr GO was about 53% higher than pure epoxy resin. Evaluation of activation energy (Ea) by Kissinger, Ozawa, FWO and Friedman methods showed that the presence of GO facilitates the curing reaction by reducing Ea about 30% which is due to the catalytic effect of hydroxyl groups presented on the surface of GO for epoxy ring opening. According to Friedman's plots, curing reaction remained autocatalytic for all of samples. The presence of GO increased the autocatalytic term of the reaction (n) from 0.26 to 0.32. Non‐isothermal DSC diagrams obtained from experimental data fitted well with data obtained from theoretical relations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
