Macro/microscopic fracture characterizations of SiO2/epoxy nanocomposites

Yao, Xuefeng; Zhou, Dong; Yeh, Hsien-Yang

doi:10.1016/j.ast.2007.03.005

Cited by 51 publications

(27 citation statements)

References 20 publications

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“…It was reported that using silica nanoparticles in different concentrations resulted in an improvement of mechanical strength [61][62][63][64][65][66] and thermal stability [67][68][69][70][71] of the host polymers. As well, in some cases, silica nanoparticles influenced the polymerization reactions of the polymer matrix [72].…”

Section: -2-silica (Sio 2 )mentioning

confidence: 99%

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

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Separation using selective polymeric membranes has been well-established as an energy-efficient and cost-effective technology in water treatment and many other applications involving aqueous solutions. However, limited chemical, thermal, and mechanical resistances besides their tendency to fouling and inadequate pure water flux may often restrict their applications. To this end, inorganic materials as additives have been demonstrated to be able to enhance chemical, thermal, and fouling membrane resistances, which demonstrate their great potential for developing novel membranes by using them as additives in polymer matrices. Considering the excellent characteristics of the nano-sized particles, this study reviews the effects of inorganic nanoadditives on properties and performance of polymer/nanoparticle composite membranes. It has been demonstrated that using nanomaterials in a polymer matrix could enhance the mechanical strength and stiffness, wettability, selectivity, water permeability, and antifouling characteristics of the host polymer. Abbreviation ALDAtomic Layer Deposition PAN Polyacrylonitrile AOP Advanced Oxidation Process PAS Polyarylsulfone APTS 3-Aminopropyltriethoxysilane PCTE Polycarbonate BET Brunauer Emmett Teller PDMS Polydimethylsiloxane BP Bucky-Paper PEI Polyethyleneimine BPPO Brominated Poly(phenylene oxide) PES Polyethersulfone BSA Bovine serum albumin PI Polyimide CA Cellulose acetate PMMA Poly(methyl methacrylate) Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t CNIM Carbon Nanotube Immobilized Membrane PP Polypropylene CNT Carbon Nanotube PSf Polysulfone CTA Cellulose triacetate PTFE Polytetrafluoroethylene DCMD Direct Contact Membrane Distillation PV Pervaporation DLS Dynamic Light Scattering PVA Poly(vinyl alcohol) FO Forward Osmosis PVC Polyvinyl chloride GO Graphene Oxide PVDF Polyvinylidene fluoride ICP Internal Concentration Polarization RO Reverse Osmosis LEP Liquid Entry Pressure SDS Sodium dodecyl sulfate MD Membrane Distillation SEM Scanning Electron Microscopy Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t MF Microfiltration SGMD Sweep Gas Membrane Distillation MWCNT Multi-Walled Carbon Nanotube SPES SulfonatedPolyethersulfone NF Nanofiltration TMOS Tetramethylorthosilicate NP Nanoparticle TMP Transmembrane Pressure PA Polyamide UF Ultrafiltration PAI Poly(amide-imide) VMD Vacuum Membrane Distillation 1-IntroductionThe increase in water demand for domestic, agricultural and industrial uses resulted in much attention toward water and waste water treatment technologies during the last few decades. The water demand is predicted to increase by 50% over the next few decades [1]. Membrane filtration, advanced oxidation processes (AOPs), and UV irradiation are among the processes that Downloaded by [Deakin University Library] at 01:21 12 August 2015A c c e p t e d M a n u s c r i p t have been used for this purpose [2] and membrane filtration is considered to be one of the most...

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Section: -2-silica (Sio 2 )mentioning

confidence: 99%

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

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“…In PMCs, thermosetting epoxy is the most commonly used matrix [4][5][6][7]. The damage tolerance and fracture toughness of epoxy can be enhanced with the incorporation of (nano-) fillers such as metallic oxides [8][9][10], clays [11][12][13], carbon nanotubes (CNTs) [14][15][16], and other carbonaceous materials [17][18][19]6,5]. When nanofillers are introduced in polymers, the fracture pattern significantly changes due to the defection of advancing cracks with strong nanofillers.…”

Section: Introductionmentioning

confidence: 99%

Fractography analysis of 1.0 wt% nanoclay/multi-layer graphene reinforced epoxy nanocomposites

Atif

2016

Journal of Composite Materials

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Abstract:The topographical features of fractured tensile, flexural, K1C, and impact specimens of 1.0 wt% Multi-Layer Graphene (MLG)/nanoclay-epoxy (EP) nanocomposites have been investigated. The topographical features studied include maximum roughness height (Rmax or Rz), root mean square value (Rq), roughness average (Ra), and waviness (Wa). Due to deflection and bifurcation of the cracks by nanofillers, specific fracture patterns are observed. Although these fracture patterns seem aesthetically appealing, however, if delved deeper, they can further be used to estimate the influence of nanofiller on the mechanical properties. By a meticulous examination of topographical features of fractured patterns, various important aspects related to fillers can be approximated such as dispersion state, interfacial interactions, presence of agglomerates, and overall influence of the incorporation of filler on the mechanical properties of nanocomposites. In addition, treating the nanocomposites with surfaces of specific topography can help improve the mechanical properties of nanocomposites.

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“…To define the trajectory of atoms, Newton's equation of motion in MD can be used as given in Equation (1) and the relation between force f 1 and potential energy E is given in Equation (2), where m I , r I , and f I are mass of, position of, and force on I th atom, respectively, and ( ) 1 2 3 , , , , N E r r r r  is potential energy of the N-atom system. The potential energy arises from the bonded and non-bonded interactions among atoms and molecules.…”

Section: Atomic Structurementioning

confidence: 99%

“…The first manufactured PMCs used glass fibers as reinforcement. Besides glass fibers, some frequently used reinforcements include metallic oxides [2]- [4], clays [5]- [7], Carbon Nanotubes (CNTs) [8]- [10], and other carbonaceous materials [11]- [13]. The trends of the use of various reinforcements in the last decade are shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Graphene Based Polymer Nanocomposites: Advances in the Last Decade

Atif¹,

Inam²

2016

Graphene

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Modeling and simulation allow methodical variation of material properties beyond the capacity of experimental methods. The polymers are one of the most commonly used matrices of choice for composites and have found applications in numerous fields. The stiff and fragile structure of monolithic polymers leads to the innate cracks to cause fracture and therefore the engineering applications of monolithic polymers, requiring robust damage tolerance and high fracture toughness, are not ubiquitous. In addition, when "many-parts" cling together to form polymers, a labyrinth of molecules results, which does not offer to electrons and phonons a smooth and continuous passageway. Therefore, the monolithic polymers are bad conductors of heat and electricity. However, it is well established that when polymers are embedded with suitable entities especially nano-fillers, such as metallic oxides, clays, carbon nanotubes, and other carbonaceous materials, their performance is propitiously improved. Among various additives, graphene has recently been employed as nano-filler to enhance mechanical, thermal, electrical, and functional properties of polymers. In this review, advances in the modeling and simulation of grapheme based polymer nanocomposites will be discussed in terms of graphene structure, topographical features, interfacial interactions, dispersion state, aspect ratio, weight fraction, and trade-off between variables and overall performance.

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Macro/microscopic fracture characterizations of SiO2/epoxy nanocomposites

Cited by 51 publications

References 20 publications

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Fractography analysis of 1.0 wt% nanoclay/multi-layer graphene reinforced epoxy nanocomposites

Modeling and Simulation of Graphene Based Polymer Nanocomposites: Advances in the Last Decade

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