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

Zhang, Qingjie; Zhao, Xin-Fu; Sui, Gang; Yang, Xiaoping

doi:10.3390/nano8090680

Cited by 16 publications

(8 citation statements)

References 41 publications

(52 reference statements)

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“…The deconvulated high-resolution N 1s spectra of NFCNFs in Figure 3(B) shows the main peak at 399.9 eV along with two other peaks at 398.5 and 401.5 eV for C─NH 2 , C─N─C, and N─C═O, respectively. [44,45] The C 1s high-resolution spectra of AFCNFs in Figure 3(C) shows the presence of C─C/C═C at 284.6 eV along with the peaks at higher binding energies of 285.8, 288.8, and 290.2 eV, corresponding to the formation of C─OH, C═O, and O═C─OH functionalities, respectively. Figure 3(D) shows the C 1s of NFCNFs where the main peak for C─C bond is at 284.6 eV along with two other peaks at 285.5 and 287.8 eV, which confirms the formation of C─N and N─C═O bonds, respectively.…”

Section: Functionalization Of Ecnfsmentioning

confidence: 99%

The role of interface on dynamic mechanical properties, dielectric performance, conductivity, and thermal stability of electrospun carbon nanofibers reinforced epoxy

et al. 2021

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Polymer nanocomposites containing pristine (PCNF) and aminefunctionalized (NFCNF) electrospun carbon nanofibers were fabricated. The amine-terminated functional groups on CNFs, with a surface coverage of 2.76 mmol/g, react with the epoxy monomers forming covalent linkages for better dispersion and stronger interface. The improved load transfer resulted in an improvement of 82% in storage modulus (rubbery region~70 C) and 20 C increase in the glass transition temperature for 1 wt% NFCNF-epoxy. Tensile strength and modulus improves by 22% and 27%, respectively, for 2 wt % NFCNF-epoxy. The thermal stability, dielectric properties and AC/DC conductivity are discussed in terms of the interfacial characteristics. These results highlight the potential of electrospun CNFs as structural and functional reinforcement.

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Section: Functionalization Of Ecnfsmentioning

confidence: 99%

The role of interface on dynamic mechanical properties, dielectric performance, conductivity, and thermal stability of electrospun carbon nanofibers reinforced epoxy

et al. 2021

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“…In paper [22], 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-NH 2 ) with n-butyl glycidylether (BuGE) and benzyl glycidylether (BeGE).…”

Section: Introductionmentioning

confidence: 99%

Epoxy Nanocomposites Reinforced with Functionalized Carbon Nanotubes

et al. 2020

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In this article, amino functionalized multiwalled carbon nanotubes (MWCNTs) were prepared by chemical modification of the surface of a MWCNTs using γ-aminopropyltriethoxysilane (APTES) and dispersed into the epoxy composition. The modifying agent (APTES) was directly deposited on the MWCNTs surfaces. For the functionalization of MWCNTs, was used not the APTES concentrate, as it had been described in previous works, but its freshly prepared aqueous solution. Properties of APTES-treated MWCNTs were characterized by transmission electron microscope (TEM), Raman spectroscopy and FT-IR. The results showed that the functionalization and chemical compatibility of APTES-treated MWCNTs with epoxy composition provides their best dispersion in the epoxy composition, had important influence on curing behavior, structure and physicochemical properties of the epoxy composites plasticized with trichloroethyl phosphate. The results showed that the functionalization and chemical compatibility of APTES-treated MWCNTs with epoxy composition provides increased of physicomechanical properties of epoxy composites: bending stress increases by 194% and bending modulus increases by 137%, the tensile strength increases by 108% and the tensile elastic modulus increases by 52%, impact strength increases by 300%, in comparison with plasticized epoxy composite that does not contain MWCNTs.

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“…The interaction and properties of composites of organic polymers with nanotubes are successfully investigated by methods of computer simulation [15][16][17][18][19]. In addition, the interaction of nitrogen-containing molecules (1,1-diamino-2,2-dinitroethylene, hexahydro-1,3,5-trinitro-s-triazine, octahydro-1,3,5,7tetranitro-1,3,5,7-tetrazocine, 3,3΄-azo-bis(6amino-1,2,4,5-tetrazine, 3,6-diazido-1,2,4,5tetrazine etc.)…”

Section: Introductionmentioning

confidence: 99%

Quantumchemical study on the interaction of carbon nanotube with polyethylene and polypropylene oligomers

Terets¹,

Demianenko²,

Zhuravsky³

et al. 2019

Him. Fiz. Tehnol. Poverhni

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The results of the study on the properties of carbon nanotubes-polymer nanocomposites have shown that the use of nanotubes (CNT) to fill the polymer matrices of different species significantly alter their physical properties compared to the original polymers. However, the influence of CNT on the properties of nanocomposites obtained at the molecular level has not been completely ascertained yet. Therefore, the purpose of this work was to examine the interaction of CNT with fragments of polymers with the same nature, but the different structure, for example, polyethylene and polypropylene using quantum chemistry.By method of density functional theory with the exchange-correlation functional B3LYP, the basis set 6-31G(d,p) and the Grimme dispersion correction, the energy values have been calculated of interaction between carbon nanotube fragments and oligomers of polyethylene and polypropylene, the most probable structures of their intermolecular complexes being optimized.A graphene-like plane of 40 carbon atoms and 16 atoms of hydrogen was chosen as a model for the outer surface of the multi-walled nanotubes (MWNT). In addition to the above described, two larger models were used, with the general formula C 54 H 18 and C 96 H 24 in order to take into account the dimensional effect of the surface of the nanotube fragment model on the interaction energy.It has been found that the interaction energy of a carbon nanotube fragment with an oligomer of polypropylene is greater, compared with polyethylene, which is consistent with the experimental data on melting temperatures of pure polymers and nanotube-polymer composites.The polymer with an outer surface of a carbon nanotube forms an intermolecular complex do not bound covalently and retained by intermolecular dispersion forces. Oligomers of polymeric matters and nanotube surfaces in nanocomposites formed are located closer to each other than separate polymeric links between them.

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

Cited by 16 publications

References 41 publications

The role of interface on dynamic mechanical properties, dielectric performance, conductivity, and thermal stability of electrospun carbon nanofibers reinforced epoxy

The role of interface on dynamic mechanical properties, dielectric performance, conductivity, and thermal stability of electrospun carbon nanofibers reinforced epoxy

Epoxy Nanocomposites Reinforced with Functionalized Carbon Nanotubes

Quantumchemical study on the interaction of carbon nanotube with polyethylene and polypropylene oligomers

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