Cure and mechanical properties of recycled NdFeB-natural rubber composites

Saramolee, Prachid; Lertsuriwat, P.; Hunyek, Anuchit; Sirisathitkul, Chitnarong

doi:10.1007/s12034-010-0091-z

Cited by 28 publications

(21 citation statements)

References 11 publications

(21 reference statements)

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“…The advantages of using such polymer composite is its lightweight, low cost, high strength, elasticity, toughness, and can be easily tuned to desired shape through different techniques. In these materials, the macromolecular chains are chemically linked to the nanofillers at a molecular level, leads to a nanostructured magnetic material with more scientific and technological application such as magneto resistance devices, magnetic refrigeration, microwave shield, and sensors . The electrical conductivity and dielectric properties of an insulating material can be modified by the incorporation of electrically conducting filler particles in the host materials .…”

Section: Introductionmentioning

confidence: 99%

Dynamic mechanical properties, magnetic and electrical behavior of iron oxide/ethylene vinyl acetate nanocomposites

Ramesan

2014

Polymer Composites

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Nanocomposites of ethylene vinyl acetate (EVA) containing iron oxide nanoparticles (IONPs) were prepared by open mill‐mixing technique. The effect of loading of IONPs in EVA was characterized by Fourier transform infrared (FTIR), X‐ray diffraction (XRD), transmission electron micrograph (TEM), and dynamic mechanical analysis (DMA). The FTIR spectra ascertain the intermolecular interaction between the polymer and IONPs. TEM and XRD studies revealed the structurally ordered arrangement of nanoparticles within the polymer matrix. DMA showed an increase in storage modulus and lesser damping characteristics of composite with the increase in loading of nanoparticles, whereas these properties decreased significantly with increase in temperature. The glass transition temperature shifted toward higher temperature with the increase in content of IONPs. Magnetic properties of the nanocomposites were investigated using vibrating sample magnetometer at room temperature. The saturation of magnetization was progressively increased with the increase in content of nanoparticles. The electrical conductivity, dielectric constant, and dielectric loss of the composite were found to be increased with the increase in volume fraction of nanoparticles. The polymer–filler interaction was also determined from the swelling studies. POLYM. COMPOS., 35:1989–1996, 2014. © 2014 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Dynamic mechanical properties, magnetic and electrical behavior of iron oxide/ethylene vinyl acetate nanocomposites

Ramesan

2014

Polymer Composites

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“…The tensile strength of the composite with 400 phr of ferrite cured with the peroxide system was even higher when compared to the reference sample with the sulfur curing system applied. This seems to be very promising as ferrites generally act as inactive fillers when they are incorporated in rubber compounds and deteriorate the physical‐mechanical properties of composites . From Figure , it also becomes apparent that composites cured with the peroxide curing system exhibit higher tensile characteristics in comparison with the equivalent composites cured with the sulfur system in all ferrite concentrations.…”

Section: Resultsmentioning

confidence: 96%

Rubber magnets based on NBR and lithium ferrite with the ability to absorb electromagnetic radiation

Kruželák

Kvasničáková

Ušák

et al. 2020

Polymers for Advanced Techs

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Rubber magnetic composites were prepared through the incorporation of magnetic soft lithium ferrite into acrylonitrile butadiene rubber. Standard sulfur-based curing and peroxide curing systems were used for cross-linking of rubber matrices. The experimental part was focused on the investigation of ferrite content and curing system composition on cross-link density, physical-mechanical, magnetic and shielding characteristics of composites. The results demonstrated that cross-link density and physical-mechanical properties of composites can be modified by both the amount of ferrite and composition of the curing system. The influence of curing systems on magnetic properties was negligible. It can be stated that the application of lithium ferrite to rubber matrix leads to the preparation of rubber composites with the ability to efficiently absorb harmful electromagnetic radiation in the tested frequency range. The shielding efficiency of composites increased with increasing content of magnetic filler. K E Y W O R D S electromagnetic radiation shielding, magnetic filler, peroxide curing, rubber magnets, sulfur curing

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“…Minimum torque can be related to the viscosity of the NR compound before vulcanization and influenced by mixing time and filler properties [29]. e minimum torque of 2ALT/NR composite was similar to that of gum NR.…”

Section: Characterization Of Rhf/nrmentioning

confidence: 91%

Effect of Silane Treatment Methods on Physical Properties of Rice Husk Flour/Natural Rubber Composites

Srisuwan

Jarukumjorn

Suppakarn

2018

Advances in Materials Science and Engineering

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In this study, the effect of silane treatment methods on cure characteristics and mechanical, dynamic mechanical, and morphological properties of rice husk flour (RHF)/natural rubber (NR) composites was investigated. e RHF surface was pretreated with alkali solution and then treated with bis(triethoxysilylpropyl) tetrasulfide (TESPT) solution using the unwashing silane treatment method and washing silane treatment method. e expected difference between these two methods was the silane layers presented on the RHF surface. Unwashed TESPT-treated RHF (UW-ST) and washed TESPT-treated RHF (W-ST) were incorporated into NR to prepare RHF/NR composites. e TESPT molecules deposited on UW-ST and W-ST surfaces were confirmed by the additional peaks appeared in the FTIR spectra of UW-ST and W-ST. In addition, the decrement of decomposition temperatures and the changes in the residue amounts of UW-ST and W-ST proved the removal of the physisorbed silane layers after washing. e presence of TESPT molecules on the RHF surface enhanced compatibility and adhesion between RHF and NR matrix. is was confirmed by SEM micrographs of both UW-ST/NR and W-ST/NR composites. is result was also supported by the improvement of the mechanical and the dynamic mechanical properties of these two composites. According to mechanical properties of the NR composites, the washing silane treatment method was more effective than the unwashing silane treatment method for compatibility improvement between RHF and NR. e modulus, tensile strength, and tear strength of W-ST/NR composites can be enhanced without deterioration of their elongation at break.

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Cure and mechanical properties of recycled NdFeB-natural rubber composites

Cited by 28 publications

References 11 publications

Dynamic mechanical properties, magnetic and electrical behavior of iron oxide/ethylene vinyl acetate nanocomposites

Dynamic mechanical properties, magnetic and electrical behavior of iron oxide/ethylene vinyl acetate nanocomposites

Rubber magnets based on NBR and lithium ferrite with the ability to absorb electromagnetic radiation

Effect of Silane Treatment Methods on Physical Properties of Rice Husk Flour/Natural Rubber Composites

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