Nickel and iron nano-particles in natural rubber composites

El‐Nashar, D. E.; Mansour, S. H.; Girgis, E.

doi:10.1007/s10853-006-0179-4

Cited by 43 publications

(32 citation statements)

References 11 publications

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“…However, it was very interesting to find that the coercivities (Hc) decreased with decreasing weight ratios. According to previous reports (e.g., El-Nashar et al 2006), a larger ratio of magnetic particles in a rubber medium often shortens the distance between those particles, leading to magnetic coupling. In this study by contrast, due to the increased distance between the magnetic particles as caused by the low weight ratio, a weaker magnetic dipole coupling existed.…”

Section: Introductionmentioning

confidence: 77%

“…The coercivities were found, correspondingly, to be non-linearly dependent on the CI/PDMS weight ratios in the composites. In the case of the aforementioned CI-PDMS composite (weight ratio = 2), the Ms was measured at 134.5 emu/g, which is much larger than that of nickel particles-rubber composite, 25.03 emu/g (El-Nashar et al 2006) or ferric oxide-PDMS composite, 21.9 emu/g (Pirmoradi et al 2010). A large magnetization indicates that a large magnetic force can be exerted under a low magnetic field.…”

Section: Introductionmentioning

confidence: 91%

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Design and fabrication of microfluidic mixer from carbonyl iron–PDMS composite membrane

Zhang

Wang

et al. 2010

Microfluid Nanofluid

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This paper introduces a carbonyl iron-PDMS (CI-PDMS) composite magnetic elastomer in which carbonyl iron (CI) particles are uniformly distributed in a PDMS matrix. The CI particles and the PDMS were mixed at different weight ratios and tested to determine the influence of CI concentration. The magnetic and mechanical properties of the magnetic elastomers were characterized, respectively, by vibrating-sample magnetometer and by tensile testing using a mechanical analyzer. The elastomer was found to exhibit high magnetization and good mechanical flexibility. The morphology and deformation of the CI-PDMS membrane also were observed. A magnetically actuated microfluidic mixer (that is, a micromixer) integrated with CI-PDMS elastomer membranes was successfully designed and fabricated. The high efficiency and quality of the mixing makes possible the impressive potential applications of this unique CI-PDMS material in microfluidic systems.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 91%

Design and fabrication of microfluidic mixer from carbonyl iron–PDMS composite membrane

Zhang

Wang

et al. 2010

Microfluid Nanofluid

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“…This large dielectric constant is explained based on the minicapacitor principle [57,58]. The distribution of MWCNTs within the insulating rubber medium causes the formation of a large number of minicapacitors.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Free-volume correlation with mechanical and dielectric properties of natural rubber/multi walled carbon nanotubes composites

Ponnamma

Ramachandran

Hussain

et al. 2015

Composites Part A: Applied Science and Manufacturing

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“…Also, its unique combination of properties has made it an elastomer of choice for many of the sophisticated engineering applications [1]. However, one of the limitations of NR is its low value of hightemperature stability.…”

Section: Introductionmentioning

confidence: 99%

Infrared Spectroscopy and Thermal Stability Studies of Natural Rubber-Barium Ferrite Composites

Mahmoud¹,

Makled²

2012

ACES

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Natural Rubber (NR)-barium ferrite (BaF) composites (RFCs) have been prepared. Structural features of the composites were characterized by Infrared spectroscopy and scanning electron microscope (SEM). Differential scanning calorimetry (DSC) analysis showed that there is small variation of glass transition temperature (≈-1˚C). The activation energy of glass transition was calculated by Kissinger method and has values between (53 -110 kJ/mol). Thermodynamic parameters such as activated entropy, enthalpy and Gibbs free energy were calculated for glass transition also. Thermogravimetric analysis TG and its derivative DTG showed one stage thermal decomposition between 300˚C -400˚C with weight loss between (19.47% -52.13%). Increasing barium ferrite loading will increase the thermal stability of natural rubber. The kinetic parameters such as activation energy, entropy, enthalpy and Gibbs free energy for composites in the decomposition region were calculated and analyzed using Coats-Redfern technique.

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Nickel and iron nano-particles in natural rubber composites

Cited by 43 publications

References 11 publications

Design and fabrication of microfluidic mixer from carbonyl iron–PDMS composite membrane

Design and fabrication of microfluidic mixer from carbonyl iron–PDMS composite membrane

Free-volume correlation with mechanical and dielectric properties of natural rubber/multi walled carbon nanotubes composites

Infrared Spectroscopy and Thermal Stability Studies of Natural Rubber-Barium Ferrite Composites

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