Preparation, characterization, dielectric properties and solvent-imbibing behavior of styrene–butadiene rubber/zinc sulfide nanocomposites

Jasna, V. C.; Ramesan, M. T.

doi:10.1007/s12588-018-9226-7

Cited by 15 publications

(11 citation statements)

References 30 publications

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“…The plots are similar for parent NR and its composites, but the difference is the shift in hump maxima. This hump like nature of tan δ proves the relaxation phenomenon possible in the composite systems 36 . All the composites show a higher value of tan δ than the pure NR along with a shift in hump maxima to the high frequency end.…”

Section: Resultssupporting

confidence: 54%

“…This hump like nature of tan δ proves the relaxation phenomenon possible in the composite systems. 36 All the composites show a higher value of tan δ than the pure NR along with a shift in hump maxima to the high frequency end. The maximum tan δ value is observed for a composite with 5 phr NiO content and beyond that, depreciation is observed.…”

Section: Dielectric Loss Tangent (Tan δ)mentioning

confidence: 91%

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Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

Parvathi

Ramesan

2022

J of Applied Polymer Sci

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In this work, different contents of nickel oxide (NiO) nanoparticles were inserted into natural rubber (NR) using an industrial compounding technique to improve its process ability, mechanical, thermal stability, conductivity, dielectric constant, antibacterial and optical properties. The Fourier transform infrared spectra of composites showed the characteristic band of NiO at 495 cm À1 indicating the presence of nanoparticles in NR. The insertion of NiO into rubber showed a decrease in bandgap energy than pure NR. The crystalline peaks of nanoparticles in the rubber matrix were confirmed through X-ray diffraction pattern. The nano size distribution and surface morphology from HR-TEM and FE-SEM showed that the nanoparticles were uniformly dis-

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Section: Resultssupporting

confidence: 54%

Section: Dielectric Loss Tangent (Tan δ)mentioning

confidence: 91%

Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

Parvathi

Ramesan

2022

J of Applied Polymer Sci

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“…Diffusion of aromatic solvents through fabricated composites can be expressed in terms of mol% uptake (Q t ). [34] Q t mole % given by the following equation Q t mol% ð Þ¼ mass of solvent sorbed=molecular weight of penetrant initial weight of rubber sample Â 100:…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Diffusion of aromatic solvents through fabricated composites can be expressed in terms of mol% uptake (Q t ). [34] Q t mole % given by the following equation Then calculated Q t values are plotted against square root of time as shown in Figure 7 for NR with 0, 1, 3, 5, 7, and 10 phr of Cu-Al 2 O 3 in benzene at room temperature. This Q t value is proportional to the amount of solvent entered into NR.…”

Section: Effect Of Loading On Sorptionmentioning

confidence: 99%

“…This initial increase can be explained on the basis of the cavitation occurring inside the matrixes which causes greater surface area thus enhancing solvent entry. [34] The absorption and desorption become balanced at equilibrium and the Q t remains constant after this. For composites, it is found that the solvent uptake is diminished than that of pure NR matrix due to the filler present in the cavities of NR and that restricts the entry of solvent molecules.…”

Section: Effect Of Loading On Sorptionmentioning

confidence: 99%

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Natural rubber and copper alumina nanocomposite‐based flexible elastomer‐inorganic hybrid systems

et al. 2021

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This work investigates the effect of different loading of copper alumina nanoparticles (Cu-Al 2 O 3 ) on the processing characteristics, crystalline, morphological, mechanical, and thermal properties of natural rubber (NR). The effective reinforcement of Cu-Al 2 O 3 nanoparticles into NR was carried out using a simple and efficient two roll mill mixing technique and the structural changes were systematically analyzed by Fourier transform infrared (FTIR), Xray diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscope (HR-TEM), differential scanning calorimetry, and thermogravimetric analysis. The FTIR and XRD of NR/Cu-Al 2 O 3 showed the characteristic absorption bands and the crystalline peaks of Cu-Al 2 O 3 in the prepared composites. SEM and HR-TEM showed the uniform distribution of nano Cu-Al 2 O 3 in the NR matrix. The processing time of the nanocomposites was significantly decreased with the addition of metal oxide nanoparticles, which indicated the reduction in the cost of the fabrication of elastomer product using Cu-Al 2 O 3 nanoparticles. Mechanical properties such as modulus, tensile strength, hardness, heat build-up, glass transition temperature, tear properties, abrasion, and thermal stability were greatly enhanced by the reinforcement of Cu-Al 2 O 3 into the NR matrix. The swelling behavior of composite with respect to different loading of nano-filler was also investigated in various aromatic solvents. The addition of nanoparticles reduces the solvent uptake of the composite and the maximum solvent resistance was noted for the composite with 5 phr loading.

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Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Parvathi

Ramesan

2023

J of Applied Polymer Sci

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The synthesis of highly flexible conductive rubber blend nanocomposites using a conductive polymer with metal oxide is a new and promising approach. In this work, the effect of titanium dioxide (TiO 2 ) on the performance of chlorinated natural rubber/polyindole (Cl-NR/PIN) blend nanocomposites was systematically studied. Fourier-transform infrared spectra revealed the successful incorporation of nanoparticles in the blend system. UV analysis assessed the increased absorption spectra of the nanocomposite compared to the pure blend. The X-ray diffraction confirms the presence of TiO 2 nanostructure in the blend. The high resolution transmission electron microscope results exhibited the uniform dispersion of TiO 2 in the blend. Differential scanning calorimetry and thermogravimetric analysis show the increased glass transition temperature and thermal stability of the blend nanocomposite with an increase in TiO 2 concentration. The linear low-frequency AC conductivity demonstrated the occurrence of electrode polarization and the exponential increase in AC conductivity after a threshold frequency illustrated the semiconducting behavior of the composites. The maximum dielectric constant and AC conductivity were measured for the composite with 5 wt% filler loading, as the threshold level for the maximum interfacial contact. The hopping conduction, activation energy, improved conductivity and dielectric properties suggest that these blend nanocomposite films are promising candidates for the development of flexible energy storage devices.chlorinated natural rubber/polyindole blend, dielectric parameters, nanocomposites, temperature dependent conductivity, thermal properties, titanium dioxide | INTRODUCTIONConducting polymers are of great interest due to their diverse applications such as rechargeable batteries, modified electrodes, biosensors, electrochromic displays, and primer layers that prevent corrosion. [1][2][3] The nitrogencontaining heteroaromatic polymer has several intriguing properties, but the main barrier is its poor mechanical stability, brittleness and low processability. Polyindole (PIN) films are often particularly rigid, brittle, insoluble,

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Preparation, characterization, dielectric properties and solvent-imbibing behavior of styrene–butadiene rubber/zinc sulfide nanocomposites

Cited by 15 publications

References 30 publications

Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

Natural rubber and copper alumina nanocomposite‐based flexible elastomer‐inorganic hybrid systems

Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

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