A Study on the Physical Properties of Rock Wool Fiber—Polystyrene Composite

Zihlif, A. M.; Ragosta, G.

doi:10.1177/0892705703016003005

Cited by 23 publications

(11 citation statements)

References 18 publications

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“…In general, natural fibers can be either of plant origin such as Flax [15], bamboo [16], abaca [17] or animal origin such as wool [18] and silk [19]. According to the location of the fibers in the plant, the fibers are classified as: leaf fiber (such as banana fiber [20], pineapple fiber [21]), bast fiber (such as kenaf fiber [22], ramie fiber [23]) and seed fiber (such as cotton fiber [24]).…”

Section: Introductionmentioning

confidence: 99%

Identification of the Physical and Mechanical Properties of Moroccan Sisal Yarns Used as Reinforcements for Composite Materials

Samouh

Cherkaoui

Soulat

et al. 2021

Fibers

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This work aims to investigate the physical and mechanical properties of sisal fiber and yarn of Moroccan origin. The cellulosic and non-cellulosic constituents of the Moroccan sisal fiber were identified by FTIR spectroscopy. The thermal properties were studied by thermogravimetric analysis. The hydrophilicity of the fiber was evaluated by the contact angle. The results show that the sisal fiber has a low thermal stability. The mechanical properties of the fiber analyzed by the Impregnated Fiber Bundle Test (IFBT) method show that the porosity of the impregnated yarns and the twist angle of the yarns influence the elastic modulus of the sisal fiber. The physical and mechanical properties of the manufactured sisal yarns were also characterized and analyzed. The obtained results reveal an interesting potential to use the Moroccan sisal fiber in development of bio-sourced composite materials.

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Section: Introductionmentioning

confidence: 99%

Identification of the Physical and Mechanical Properties of Moroccan Sisal Yarns Used as Reinforcements for Composite Materials

Samouh

Cherkaoui

Soulat

et al. 2021

Fibers

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“…%), the network will be connected to each other containing the overlapping paths to allow the charge carriers to pass through, where the charge carriers with routes through which the electrical resistance is less [5,6]. Table ( 1) shows the values of volume electrical conductivity σ v Ω·cm -1 for PVANi(NO₃)₂ films with concentration of Ni(NO₃)₂ salt at room temperature.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Study of some Electrical Properties of PVA-Ni(NO<sub>3</sub>)<sub>2</sub> Composites

Salman

Bakr

Mahmood

2014

ILCPA

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The aim of this paper is to prepare and study the (D.C.) electrical conductivity of (PVANi(NO₃)₂) composites at different temperatures. For that purpose, PVA films with Ni(NO₃)₂ salt additive were prepared with different concentrations 2, 4, 6, 8 and 10 wt. % and with thickness of 45µm by using casting technique. The experimental results for PVA-Ni(NO₃)₂) films show that the (D.C.) electrical conductivity increased with increasing the filler content and the temperature, and the activation energy was decreased with increasing the filler content .

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“…where 0 is a material constant, T is the temperature in Kelvin, and k B is the Boltzman constant [6,10].…”

Section: Impedance Measurementsmentioning

confidence: 99%

“…The grains of the natural fillers are of various sizes and shapes, and their grain boundaries play an essential role in the physical behavior in the prepared polymer composites, especially in the mechanical and electrical properties. The addition of mineral fillers, including clays and zeolites, to polymeric matrices can improve the electrical and dielectric properties of insulating polymers [3][4][5][6][7]. Kaolinite is a clay mineral with chemical composition Al 2 (Si 2 O 5 )(OH) 4 and layered silicate structure linked through oxygen atoms to one octahedral sheet of alumina octahedral represented by Al 2 ðOHÞ þ2…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the AC Electrical Properties of Kaolinite/Polystyrene Composites

Abdallah

Zihlif

2010

Journal of Thermoplastic Composite Materials

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Impedance spectroscopy has been used to study the effect of kaolinite grain sizes on the AC electrical properties of kaolinite/polystyrene composites under different temperatures and applied frequencies. Impedance measurements were performed on prepared composites containing 20% kaolinite mineral of grain sizes 63, 106, 212, and 300 mm in addition to neat polystyrene. The measured electrical quantities such as impedance, phase angle, dielectric constant and loss, AC conductivity, and thermal activation all showed a temperature and frequency dependence. The dielectric constant and loss increases with both grain size and temperature. The AC conductivity increases with decreasing kaolinite grain sizes. The 63 mm grain size composite has higher electrical conduction under applied frequencies and temperatures. A statistical model is presented to explain the dependence of the AC electrical properties on the filler grain size. The study concludes that the overall electrical behavior is influenced by some processes such as electron hopping, ion diffusion, and space charge polarization that take place in the composite microstructure.

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A Study on the Physical Properties of Rock Wool Fiber—Polystyrene Composite

Cited by 23 publications

References 18 publications

Identification of the Physical and Mechanical Properties of Moroccan Sisal Yarns Used as Reinforcements for Composite Materials

Identification of the Physical and Mechanical Properties of Moroccan Sisal Yarns Used as Reinforcements for Composite Materials

Preparation and Study of some Electrical Properties of PVA-Ni(NO<sub>3</sub>)<sub>2</sub> Composites

Effect of Grain Size on the AC Electrical Properties of Kaolinite/Polystyrene Composites

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