Triblock copolymer grafted Graphene oxide as nanofiller for toughening of epoxy resin

Jayan, Jitha S.; Saritha, Appukuttan; Deeraj, B.D.S.; Joseph, Kuruvilla

doi:10.1016/j.matchemphys.2020.122930

Cited by 55 publications

(54 citation statements)

References 71 publications

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“…The incorporation of nanoparticles in epoxy resins allows modification of many properties. In comparison to the neat polymer, enhanced mechanical properties [ 6 , 16 , 27 , 32 , 35 , 45 , 57 , 69 , 85 , 101 , 106 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 ], improved corrosion resistance [ 21 , 25 , 59 , 64 , 70 , 92 , 108 , 120 , 121 , 122 , 123 , 124 , 125 , 126 ], increased thermal and electrical conductivity [ 5 , 15 , 16 , 17 , 27 , 45 , 86 , 87 , 101 , 109 , 110 , 117 , 127 , 128 ], high dielectric permittivity and low dielectric loss [ 93 ...…”

Section: Properties Of the Epoxy Nanocompositesmentioning

confidence: 99%

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Frigione

Lettieri

2020

Materials

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This paper aims at reviewing the works published in the last five years (2016–2020) on polymer nanocomposites based on epoxy resins. The different nanofillers successfully added to epoxies to enhance some of their characteristics, in relation to the nature and the feature of each nanofiller, are illustrated. The organic–inorganic hybrid nanostructured epoxies are also introduced and their strong potential in many applications has been highlighted. The different methods and routes employed for the production of nanofilled/nanostructured epoxies are described. A discussion of the main properties and final performance, which comprise durability, of epoxy nanocomposites, depending on chemical nature, shape, and size of nanoparticles and on their distribution, is presented. It is also shown why an efficient uniform dispersion of the nanofillers in the epoxy matrix, along with strong interfacial interactions with the polymeric network, will guarantee the success of the application for which the nanocomposite is proposed. The mechanisms yielding to the improved properties in comparison to the neat polymer are illustrated. The most important applications in which these new materials can better exploit their uniqueness are finally presented, also evidencing the aspects that limit a wider diffusion.

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Section: Properties Of the Epoxy Nanocompositesmentioning

confidence: 99%

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Frigione

Lettieri

2020

Materials

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“…3,4 The reported improvement methods include the development of new structural TS resins 5,6 or polymer catalysts, 7 copolymerization with other TS resins, 8 blending with rubbers or thermoplastic (TP) resins to form multiphase morphologies, 9,10 or hybridization with nanomaterials. 11,12 Among these strategies, the introduction of multiphase structures into TS blends, which could prohibit crack propagation or absorb more energy through plastic deformation when blends were subjected to external impact force, 13−19 is the most promising method to significantly improve their toughness. Reactioninduced phase separation (RIPS), a process that a uniform mixture of the resin precursor undergoes a phase separation from the homogeneous structure to a multiphase structure during the in situ curing reactions of the TS resin, has been widely used to fabricate multiphase structures in TP-modified TS resin systems.…”

Section: Introductionmentioning

confidence: 99%

Engineering Benzoxazine/Epoxy/Imidazole Blends with Controllable Microphase Structures for Toughness Improvement

Yue

Zhao

et al. 2020

ACS Appl. Polym. Mater.

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Toughness improvement of thermosetting benzoxazine (BZ) /epoxy (ER) blends is of great significance to expand their applications in the field of high-performance structural parts. Introduction of multiphase structures to the thermosetting blends via in situ reaction induced phase separation is a promising way to improve their toughness. However, the influences of the blend compositions on the phase separation and phase morphology as well as the thermal and mechanical properties of blends are still not clear. Here, we prepared a variety of BZ/ER/imidazole (MZ) ternary blending systems with different compositions and found that phase separation structures, including sea-island, cocontinuous, and phase-inversion morphologies, could be controlled by tuning the composition of ER resins and MZ. At a specific composition of ER resins, increasing the MZ content is prone to form phase separation structures, and the minimum MZ content needed for phase separation increased with the ER content. What is more, when the reactivity difference between BZ and ER (ΔEα) was larger than 40%, phase separation could occur. Finally, the introduction of multiphase morphologies significantly improved the impact strength and well maintained the thermomechanical properties of ternary blends.

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“…The cracks tilt and twist because of the presence of nanofillers in the EP, indicating a crack deflection toughening mechanism. In another work, [147] The same research team studied the effect of GO and GO grafted with polyethylene glycol-b-polypropylene glycol-bpolyethylene glycol triblock copolymer (GO-g-TBCP) on the mechanical properties of an EP. The grafting caused improvements of approximately 400% in fracture toughness and 33% in UTS.…”

Section: Toughening Of Epoxy Resins Using Hybrid Of Carbonaceous Nano...mentioning

confidence: 99%

A review of recent progress in improving the fracture toughness of epoxy‐based composites using carbonaceous nanofillers

et al. 2022

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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.

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Triblock copolymer grafted Graphene oxide as nanofiller for toughening of epoxy resin

Cited by 55 publications

References 71 publications

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Engineering Benzoxazine/Epoxy/Imidazole Blends with Controllable Microphase Structures for Toughness Improvement

A review of recent progress in improving the fracture toughness of epoxy‐based composites using carbonaceous nanofillers

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