Physical properties of polystyrene/alum composites

Saq'an, S.; Ayesh, Ayman S; Zihlif, A. M.; Martuscelli, E.; Ragosta, G.

doi:10.1016/j.polymertesting.2004.04.008

Cited by 59 publications

(55 citation statements)

References 27 publications

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“…By melting at high temperature, molten polystyrene can easily penetrate between filler particles, which facilitates suitable mixing and allow avoiding air trapping into the composites. Consequently void free composites were obtained [17]. Polystyrene-Ceramic composites were prepared in a Brabender Plasticoder.…”

Section: Methods Of Composite Preparationmentioning

confidence: 99%

Mechanical properties of ceramic-polymer nanocomposites

Abraham¹,

Kuryan²,

Isac³

et al. 2009

Express Polym. Lett.

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Nano crystalline powders of Barium Sodium Niobate (BNN) with the composition Ba3–2x Na4+x R Nb10 O30 with (R stands for rare earth = 0, x = 0) have been prepared by conventional ceramic technique. Barium Sodium Niobate can form a wide range of solid solutions, incorporating rare earth and alkali, alkaline earth elements with different compositions. The powder belonged to tungsten bronze type structure with tetragonal symmetry and lattice constants a = b = 1.2421 nm and c = 0.3903 nm. XRD (X-ray Diffraction) SEM (Scanning Electron Microscope) and AFM (Atomic Force Microscope) studies revealed that the particle size is in the nanometer range. Composites are prepared by mixing powders of BNN with polystyrene at different volume fractions of the BNN. Melt mixing technique is carried out in a Brabender Plasticoder at a rotor speed of 60 rpm (rotations per minute) for composite preparation. Mechanical properties such as stress-strain behavior, Young’s modulus, tensile strength, strain at break etc. are evaluated. Addition of filler enhances the mechanical properties of the polymer such as Young’s modulus and tensile strength. The composites showed the trend of perfect adhesion between the filler and the polymer. The filler particles are distributed relatively uniform fashion in all composites and the particles are almost spherical in shape with irregular boundaries. To explore more carefully the degree of interfacial adhesion between the two phases, the results are analyzed by using models featuring adhesion parameter. The experimental results are compared with theoretical predictions

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Section: Methods Of Composite Preparationmentioning

confidence: 99%

Mechanical properties of ceramic-polymer nanocomposites

Abraham¹,

Kuryan²,

Isac³

et al. 2009

Express Polym. Lett.

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“…8. Polystyrene exhibits an absorption coefficient of about 3cm 1 [18] and a refractive index of about 1.6 at the wavelength of 532nm. A 4μm diameter polystyrene sphere thus constitutes a weak absorbing but a strong (up to 28 radians) phase object.…”

Section: Experimental Optical Hologramsmentioning

confidence: 99%

Depth-resolved holographic reconstructions by three-dimensional deconvolution

Latychevskaia¹,

Gehri²,

Fink³

2010

Opt. Express

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Methods of three-dimensional deconvolution with a point-spread function as frequently employed in optical microscopy to reconstruct true three-dimensional distribution of objects are extended to holographic reconstructions. Two such schemes have been developed and are discussed: an instant deconvolution using the Wiener filter as well as an iterative deconvolution routine. The instant 3d-deconvolution can be applied to restore the positions of volume-spread objects such as small particles. The iterative deconvolution can be applied to restore the distribution of complex and extended objects. Simulated and experimental examples are presented and demonstrate artifact and noise free three-dimensional reconstructions from a single two-dimensional holographic record. Abstract: Methods of three-dimensional deconvolution with a point-spread function as frequently employed in optical microscopy to reconstruct true three-dimensional distribution of objects are extended to holographic reconstructions. Two such schemes have been developed and are discussed: an instant deconvolution using the Wiener filter as well as an iterative deconvolution routine. The instant 3d-deconvolution can be applied to restore the positions of volume-spread objects such as small particles. The iterative deconvolution can be applied to restore the distribution of complex and extended objects. Simulated and experimental examples are presented and demonstrate artifact and noise free three-dimensional reconstructions from a single two-dimensional holographic record.

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“…The addition of other materials could increase or decrease the dielectric loss. For example, adding tin can decrease dielectric loss of BST ceramics at room temperature [9,20]. The diffuseness of the phase transition of BST ceramics is enhanced with increasing tin content [21], while adding zirconium to BaTiO 3 results in (447) M.-A.…”

Section: Resultsmentioning

confidence: 99%

“…2 indicates that the polystyrene PS/BST composites behaves electrically as an RC circuit network and presents a single relaxation process and was used to investigate the behavior of bulk resistance through its diameter [9]. It is found that there is a clear reduction in bulk resistance from 1.4×10…”

Section: Resultsmentioning

confidence: 99%

“…Several ac electrical properties with different composite concentrations studies were conducted and found to be altered by composite concentration, temperature, frequency and relaxation time [7][8][9][10][11][12][13][14][15][16]. AbuHijleh et al observed that ac conductivity and dielectric constant increase with increase of mica content in composite [17].…”

Section: Introductionmentioning

confidence: 99%

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Ac Electrical Properties of Polystyrene/Ferroelectric Barium Stannate Titanate Ba(Ti_0.9Sn_0.1)O₃Ceramic Composite

2016

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A composite of polystyrene (PS)/ferroelectric barium stannate titanate (BST) with different BST concentration was prepared. The dielectric properties were measured using HP low impedance frequency analyzer. It is found that samples behaved as an RC network. Composites become more capacitive than resistive with increasing frequency while resistance decreases with increasing BST ceramic concentration. Temperature effects were monitored throughout the annealing process. It is found that the capacity and the ac conductivity increased after annealing while the bulk resistance decreased. Our results suggest that, the obtained material is expected to be a promising candidate for electronic ceramics. The study provides a better understanding of the relationship among these parameters.

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Physical properties of polystyrene/alum composites

Cited by 59 publications

References 27 publications

Mechanical properties of ceramic-polymer nanocomposites

Mechanical properties of ceramic-polymer nanocomposites

Depth-resolved holographic reconstructions by three-dimensional deconvolution

Ac Electrical Properties of Polystyrene/Ferroelectric Barium Stannate Titanate Ba(Ti_0.9Sn_0.1)O₃Ceramic Composite

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Physical properties of polystyrene/alum composites

Cited by 59 publications

References 27 publications

Mechanical properties of ceramic-polymer nanocomposites

Mechanical properties of ceramic-polymer nanocomposites

Depth-resolved holographic reconstructions by three-dimensional deconvolution

Ac Electrical Properties of Polystyrene/Ferroelectric Barium Stannate Titanate Ba(Ti0.9Sn0.1)O3Ceramic Composite

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Ac Electrical Properties of Polystyrene/Ferroelectric Barium Stannate Titanate Ba(Ti_0.9Sn_0.1)O₃Ceramic Composite