Effective Reinforcement of Melamine-functionalized WS2 Nanosheets in Epoxy Nanocomposites at Low Loading via Enhanced Interfacial Interaction

2020 ◽  
Vol 28 (12) ◽  
pp. 1116-1126
Author(s):  
Shahina Riaz ◽  
Soo-Jin Park
Keyword(s):  
Interfacial Interaction ◽  
Epoxy Nanocomposites ◽  
Ws2 Nanosheets ◽  
Effective Reinforcement

Low Loading of Tannic Acid-Functionalized WS2 Nanosheets for Robust Epoxy Nanocomposites

2021 ◽  
Author(s):  
Xi Luo ◽  
Xiao-Lu Pu ◽  
Xiao-Min Ding ◽  
Xiao-Feng Liu ◽  
Li Chen ◽  
...  
Keyword(s):  
Tannic Acid ◽  
Epoxy Nanocomposites ◽  
Ws2 Nanosheets

Thiokol oligomer functionalized MWCNTs for epoxy nanocomposites

2020 ◽  
Vol 49 (5) ◽  
pp. 347-353
Author(s):  
Haosheng Wang ◽  
Zewen Li
Keyword(s):  
Mechanical Properties ◽  
Photoelectron Spectroscopy ◽  
Epoxy Matrix ◽  
Interfacial Interaction ◽  
Mechanical And Thermal Properties ◽  
Gravimetric Analysis ◽  
Epoxy Nanocomposites ◽  
Content Type ◽  
The Impact ◽  
Functionalized Mwcnts

Purpose This paper aims to feature preparation and characterization of thiokol oligomer functionalized MWCNTs/epoxy nanocomposites using low molecular weight polyamide as curing agent. Design/methodology/approach First, thiokol oligomer functionalized MWCNTs (MWCNTs-TO) were prepared through hydroxylation, silanization and graft modification of MWCNTs. The nanocomposite specimens were fabricated through sonication and cast moulding process. The authors then investigated the impact of MWCNTs-TO content on mechanical and thermal properties of the nanocomposites. Findings MWCNTs-TO with grafting ratio of 17.5 Wt.% was synthesized and characterized with X-ray photoelectron spectroscopy, thermal gravimetric analysis, Fourier transform infrared and scanning electron microscopy. The obtained epoxy nanocomposites exhibit improved mechanical properties and thermal stability with MWCNTs-TO added. Moreover, desirable results were obtained at 0.75 Wt.% of MWCNTs-TO loading: the young’s modulus, tensile, flexural and impact strength increased by 24.6,72.8,34.8 and 82.7%, respectively, compared to the neat epoxy. The improvement of mechanical properties is mainly attributed to enhanced interfacial interaction and dispersion between the covalent functionalized MWCNTs and epoxy matrix. Research limitations/implications A flexible thiokol oligomer was successfully grafted onto MWCNTs via a mild route. Nanocomposites with excellent interfacial interaction and dispersion between MWCNTs-TO and the epoxy matrix have been successfully fabricated and investigated. Practical implications This method provided a mild and practical approach to improve the performance of MWCNTs epoxy nanocomposites. Originality/value A flexible thiokol oligomer was successfully covalent grafted onto MWCNTs via a mild route. Nanocomposites with excellent interfacial interaction and dispersion between MWCNTs-TO and the epoxy matrix have been successfully fabricated and investigated.

Enhanced interfacial interaction of epoxy nanocomposites with activated graphene nanosheets

2014 ◽  
Vol 131 (23) ◽  
pp. n/a-n/a ◽  
Author(s):  
Hui Deng ◽  
Fan Wu ◽  
Lei Chen ◽  
Zhiwei Xu ◽  
Liangsen Liu ◽  
...  
Keyword(s):  
Graphene Nanosheets ◽  
Interfacial Interaction ◽  
Epoxy Nanocomposites

Effective Reinforcement of Graphene in Poly (vinyl alcohol) Nanocomposites at Low Loading via Enhanced Interfacial Interaction

2011 ◽  
Vol 391-392 ◽  
pp. 250-254 ◽  
Author(s):  
Xiao Ya Yuan
Keyword(s):  
Vinyl Alcohol ◽  
Graphene Nanosheets ◽  
Interfacial Interaction ◽  
Poly Vinyl Alcohol ◽  
Mechanical And Thermal Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Degradation Temperature ◽  
Reduced Graphene ◽  
Effective Reinforcement

The graphene/poly(vinyl alcohol) nancomposites with enhanced filler-matrix interfacial interaction were fabricated via water-blending partially reduced graphene oxide (PRGO) and poly(vinyl alcohol)(PVA). The nanocomposites were characterized by X-ray Diffraction(XRD), Fourier transform infrared spectroscopy(FTIR), Scanning Electron Microscopy(SEM), thermogravimetry(TG). The results showed that the graphene nanosheets were homogeniously dispersed in the PVA matrix and enhanced interfacial adhesion was greatly enhanced due to new covalent linkage and hydrogen-bonding between graphene and PVA backbone. The mechanical and thermal properties of the nanocomposites were significantly improved at low graphene loadings. An 116% increase in tensile strength and a 19°C improvement of onset thermal degradation temperature were achieved by the addition of only 0.8 wt% graphene.

Interfacial interaction and the fracture toughness (KIC ) trends in epoxy nanocomposites filled with functionalized graphene-based fillers

2017 ◽  
Vol 39 (S4) ◽  
pp. E2356-E2369 ◽  
Author(s):  
Souvik Chakraborty ◽  
Amit K. Chakraborty ◽  
Michel Barbezat ◽  
Giovanni P. Terrasi
Keyword(s):  
Fracture Toughness ◽  
Interfacial Interaction ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites

scholarly journals Surface Sizing Treated MWCNTs and Its Effect on the Wettability, Interfacial Interaction and Flexural Properties of MWCNT/Epoxy Nanocomposites

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 680 ◽  
Author(s):  
Qingjie Zhang ◽  
Xinfu Zhao ◽  
Gang Sui ◽  
Xiaoping Yang
Keyword(s):  
Load Transfer ◽  
Interfacial Interaction ◽  
Epoxy Nanocomposites ◽  
Band Shift ◽  
Mwcnt Content ◽  
Surface Sizing ◽  
Multi Walled Carbon Nanotubes ◽  
Bending Loads ◽  
Walled Carbon Nanotubes ◽  
Functionalized Mwcnts

A surface-sizing technique was offered to take full advantage of multi-walled carbon nanotubes (MWCNTs) and epoxy resins. Two surface-sizing treated MWCNTs were obtained through a ball-milling treatment of amino-functionalized MWCNTs (MWCNT-NH2) with n-butyl glycidylether (BuGE) and benzyl glycidylether (BeGE). These were referred to as MWCNT-BuGE and MWCNT-BeGE. The results indicated that the surface sizing effectively enhanced wettability, dispersibility of MWCNTs in the epoxy resin. These ameliorating effects, along with improved interfacial interaction between MWCNT-BeGE containing benzene rings and the epoxy matrix, which can offer a more efficient local load-transfer from matrix to MWCNTs, as observed by a higher G-band shift in Raman spectrum under bending loads than that of MWCNT-BuGE reinforced ones. Correspondingly, MWCNT-BeGE/epoxy nanocomposites exhibited increasing flexural strength and modulus of 22.9% and 37.8% respectively compared with the neat epoxy, and 7.3% and 7.7% respectively compared with MWCNT-BuGE/epoxy nanocomposites with the same MWCNT content.

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