The use of atomic force microscopy as an important technique to analyze the dispersion of nanometric fillers and morphology in nanocomposites and polymer blends based on elastomers

Sousa, Fabiula Danielli Bastos de; Scuracchio, Carlos Henrique

doi:10.1590/0104-1428.1648

Cited by 28 publications

(17 citation statements)

References 75 publications

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“…The prepared nanocomposites were also characterized by AFM, which is widely used to complement other microscopic techniques used to characterize composite materials [1, 39,40].…”

Section: Incorporation Of Gnp In the Nrl: Morphologymentioning

confidence: 99%

Rational design of aromatic surfactants for graphene/natural rubber latex nanocomposites with enhanced electrical conductivity

Mohamed

Ardyani

Bakar

et al. 2018

Journal of Colloid and Interface Science

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Of these different surfactants, the tri-chain aromatic surfactant TC3Ph3 (sodium 1,5-dioxo-1,5-bis(3-phenylpropoxy)-3-((3phenylpropoxy)carbonyl) pentane-2-sulfonate) was shown to be highly graphene-compatible (nanocomposite electrical conductivity = 2.22 × 10 S cm), demonstrating enhanced electrical conductivity over nine orders of magnitude higher than neat natural rubber-latex matrix (1.51 × 10 S cm). Varying the number of aromatic moieties in the surfactants appears to cause significant differences to the final properties of the nanocomposites.

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“…The prepared nanocomposites were also characterized by AFM, which is widely used to complement other microscopic techniques used to characterize composite materials [1, 39,40].…”

Section: Incorporation Of Gnp In the Nrl: Morphologymentioning

confidence: 99%

Rational design of aromatic surfactants for graphene/natural rubber latex nanocomposites with enhanced electrical conductivity

Mohamed

Ardyani

Bakar

et al. 2018

Journal of Colloid and Interface Science

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“…The data are also in agreement with the results of rheological properties, since the viscosity of the samples tends to decrease with the increase of the exposure time of GTR to microwaves, increasing the rubber fluidity. Additionally, phase images obtained from AFM ( Figure 9) were used to provide information about the composition of the polymeric blends at nanoscale [43,44]. Assuming that GTR is a blend composed by NR, SBR and carbon black (according to the previous results presented in this work), its morphology could be analyzed, where three phases were clearly distinguished by the different colors in the images.…”

Section: Morphological Propertiesmentioning

confidence: 99%

Devulcanization of ground tire rubber: Physical and chemical changes after different microwave exposure times

Garcia¹,

Sousa²,

Lima³

et al. 2015

Express Polym. Lett.

156

123

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Abstract.Microwave devulcanization is known to be a promising and an efficient rubber recycling method which makes possible for the rubber to regain its fluidity, and makes it capable of being remolded and revulcanized. The focus of this work is to understand the physical and chemical changes that occur in the ground tire rubber after different microwave exposure periods. For this purpose chemical, thermal, rheological and morphological analyses were performed on the tire rubber, which contains natural rubber (NR) and styrene-butadiene rubber (SBR) as polymeric material. The results showed that the microwave treatment promoted the breaking of sulfur cross-links and consequently increased the rubber fluidity. However, long periods of exposure led to degradation and modification of some properties. At nanoscale, the deformation of the devulcanized NR domain under stress was observed, and the morphology obtained appears to be a droplet dispersion morphology. The most exposed samples presented only one glass transition temperature, and from this it was concluded that the treatment may have played an important role in the compatibilization of the elastomeric blend. Based on the results, it is required to control the microwave exposure time and polymeric degradation in order to achieve a regenerated rubber with satisfactory properties.

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“…According to Bastos of Sousa, AFM has been recognized as one of the most powerful tools for analyzing surface morphologies because it creates three-dimensional images on the angstrom and nano scale. This technique has been ideal in the dispersion analysis of nanometric components in nanocomposites and in polymer blends due to the ease of sample preparation and low equipment maintenance cost when compared to scanning electron microscopy [23].…”

Section: Figurementioning

confidence: 99%

Clay surface characteristics using atomic force microscopy

León

Flórez-Solano

Peñaloza

2018

Rev. Fac. Ing. Univ. Antioquia

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The use of atomic force microscopy as an important technique to analyze the dispersion of nanometric fillers and morphology in nanocomposites and polymer blends based on elastomers

Cited by 28 publications

References 75 publications

Rational design of aromatic surfactants for graphene/natural rubber latex nanocomposites with enhanced electrical conductivity

Rational design of aromatic surfactants for graphene/natural rubber latex nanocomposites with enhanced electrical conductivity

Devulcanization of ground tire rubber: Physical and chemical changes after different microwave exposure times

Clay surface characteristics using atomic force microscopy

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