Temperature-dependent surface nanomechanical properties of a thermoplastic nanocomposite

Huang, Hui; Dobryden, Illia; Ihrner, Niklas; Johansson, Mats; Ma, Houyi; Pan, Jinshan; Claesson, Per M.

doi:10.1016/j.jcis.2017.01.096

Cited by 15 publications

(8 citation statements)

References 48 publications

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“…Completely embedded particles could also be used. However, the configuration where the particle protrudes from the surface has been described in previous works on interphases in “real” nanocomposite systems, using mechanical scanning probe microscopy techniques [29–31], and EFM [26–27 32–33]. Moreover, discriminating the particles from the topography is important in the case of nanocomposites that include particles and matrix with low dielectric permittivity difference.…”

Section: Resultsmentioning

confidence: 97%

Electrostatic force microscopy for the accurate characterization of interphases in nanocomposites

Khoury¹,

Arinero²,

Laurentie³

et al. 2018

Beilstein J. Nanotechnol.

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The unusual properties of nanocomposites are commonly explained by the structure of their interphase. Therefore, these nanoscale interphase regions need to be precisely characterized; however, the existing high resolution experimental methods have not been reliably adapted to this purpose. Electrostatic force microscopy (EFM) represents a promising technique to fulfill this objective, although no complete and accurate interphase study has been published to date and EFM signal interpretation is not straightforward. The aim of this work was to establish accurate EFM signal analysis methods to investigate interphases in nanodielectrics using three experimental protocols. Samples with well-known, controllable properties were designed and synthesized to electrostatically model nanodielectrics with the aim of “calibrating” the EFM technique for future interphase studies. EFM was demonstrated to be able to discriminate between alumina and silicon dioxide interphase layers of 50 and 100 nm thickness deposited over polystyrene spheres and different types of matrix materials. Consistent permittivity values were also deduced by comparison of experimental data and numerical simulations, as well as the interface state of silicone dioxide layers.

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Section: Resultsmentioning

confidence: 97%

Electrostatic force microscopy for the accurate characterization of interphases in nanocomposites

Khoury¹,

Arinero²,

Laurentie³

et al. 2018

Beilstein J. Nanotechnol.

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“…The quantitative imaging (QI) and force volume mapping modes were applied to elucidate the temperature-dependent surface nanomechanical properties of a nanocomposite consisting of a poly(ethyl methacrylate) (PEMA) and poly(isobutyl methacrylate) (PiBMA) matrix and hydrophobized silica nanoparticle fillers. 65 The QI images of the nanocomposite surface at different temperatures of 23 1C, 40 1C and 63 1C during heating and 29 1C after cooling are shown in Fig. 9, where a few individual particles and a particle cluster are clearly visible.…”

Section: Nanocompositesmentioning

confidence: 99%

From force curves to surface nanomechanical properties

Claesson

Dobryden

et al. 2017

Phys. Chem. Chem. Phys.

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Surface science, which spans the fields of chemistry, physics, biology and materials science, requires information to be obtained on the local properties and property variations across a surface. This has resulted in the development of different scanning probe methods that allow the measurement of local chemical composition and local electrical and mechanical properties. These techniques have led to rapid advancement in fundamental science with applications in areas such as composite materials, corrosion protection and wear resistance. In this perspective article, we focussed on the branch of scanning probe methods that allows the determination of surface nanomechanical properties. We discussed some different AFM-based modes that were used for these measurements and provided illustrative examples of the type of information that could be obtained. We also discussed some of the difficulties encountered during such studies.

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“…For instance, Huang et al investigated the temperature-dependence of the surface nanomechanical properties of a polymer composite with QI mode, and elucidated the properties of the interphase between matrix and filler nanoparticles. 13 In another work, Young et al studied polymer samples with Youngs moduli in the range of 0.2-4.8 GPa and compared the data obtained using the Peakforce QNM mode with results from a conventional nanoindentation method. 14 They found that the Peakforce QNM mode provides a surface elastic modulus that in most cases compares favorably with data from nanoindentation.…”

Section: Introductionmentioning

confidence: 99%

Load-dependent surface nanomechanical properties of poly-HEMA hydrogels in aqueous medium

Dobryden

Salazar-Sandoval

et al. 2019

Soft Matter

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Temperature-dependent surface nanomechanical properties of a thermoplastic nanocomposite

Cited by 15 publications

References 48 publications

Electrostatic force microscopy for the accurate characterization of interphases in nanocomposites

Electrostatic force microscopy for the accurate characterization of interphases in nanocomposites

From force curves to surface nanomechanical properties

Load-dependent surface nanomechanical properties of poly-HEMA hydrogels in aqueous medium

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