Influence of melt processing induced orientation on the morphology and mechanical properties of poly(styrene-b-ethylene/butylene-b-styrene) block copolymers and their composites with graphite

Panaitescu, Denis Mihaela; Gabor, Raluca Augusta; Nicolae, Cristian‐Andi; Ghiurea, Marius; Mihăilescu, Mona; Grigorescu, Ramona Marina

doi:10.1016/j.matdes.2014.08.049

Cited by 19 publications

(19 citation statements)

References 38 publications

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“…However, above a certain critical loading amount, despite any enhancement of the Young's modulus that may be seen, other mechanical properties such as the tensile strength and the elongation at break can be severely reduced, since the matrices become more brittle . Furthermore, the processing method used can also affect the mechanical properties of carbon‐based composites …”

Section: Resultsmentioning

confidence: 99%

“…Other studies have reported that processing methods could also affect the morphologies of the composites and consequently their final properties . An interesting example is presented by Panaitescu et al . who investigated the influence of melt processing using a two‐roll mill to induce orientation on the morphology of SEBS and its composites with graphite.…”

Section: Introductionmentioning

confidence: 99%

“…who investigated the influence of melt processing using a two‐roll mill to induce orientation on the morphology of SEBS and its composites with graphite. Their results showed that the rolling step not only modified the self‐assembling architecture but also improved the mechanical behaviour of the composites . Moreover, the alignment induced by the processing technique may also affect the electrical properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

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Morphology, mechanical properties and electromagnetic shielding effectiveness of poly(styrene‐b‐ethylene‐ran‐butylene‐b‐styrene)/carbon nanotube nanocomposites: effects of maleic anhydride, carbon nanotube loading and processing method

Kuester

Barra

Demarquette

2018

Polymer International

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Nanocomposites based on poly(styrene-b-ethylene-ran-butylene-b-styrene) (SEBS) and carbon nanotubes (CNTs) (SEBS/CNT)as well as SEBS grafted with maleic anhydride (SEBS-MA)/CNT were successfully prepared for electromagnetic shielding applications. Both SEBS/CNT and SEBS-MA/CNT nanocomposites were prepared by melt compounding and were post-processed using two different techniques: tape extrusion and compression moulding. The different nanocomposites were characterized by Raman spectroscopy and rheological analysis. Their mechanical properties, electrical properties (10 -2 -10 5 Hz) and electromagnetic shielding effectiveness (8.2-12.4 GHz) were also evaluated. The results showed that the CNT loading amount, the presence of MA in the matrix and the shaping technique used strongly influence the final morphologies and properties of the nanocomposites. Whilst the nanocomposite containing 8 wt% CNTs prepared by compression moulding presented the highest electromagnetic shielding effectiveness (with a value of 56.73 dB, which corresponds to an attenuation of 99.9996% of the incident radiation), the nanocomposite containing 5 wt% CNTs prepared by tape extrusion presented the best balance between electromagnetic and mechanical properties and was a good candidate to be used as an efficient flexible electromagnetic interference shielding material.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphology, mechanical properties and electromagnetic shielding effectiveness of poly(styrene‐b‐ethylene‐ran‐butylene‐b‐styrene)/carbon nanotube nanocomposites: effects of maleic anhydride, carbon nanotube loading and processing method

Kuester

Barra

Demarquette

2018

Polymer International

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“…Moreover, Alomayri et al (2014) reported the existence of the crack-bridging in the vertical orientation which further lowered the composite strength [35]. Besides, the fibre orientation along the parallel directions showed excellent anisotropic mechanical properties rather than, in the perpendicular direction when using the graphite composites materials [36]. These indicated that the fibre orientations are crucial to determine optimum mechanical properties which can be developed by using the mixing process including an extrusion process.…”

Section: Fillers Orientations Effects On Cpc Materials Performancementioning

confidence: 99%

Influence the Fillers Orientation: A Short Review

Radzuan¹,

Ab²,

M³

2018

Preprint

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Bipolar plates significantly contribute in the development of the polymer electrolyte membrane (PEM) fuel cells technology due to their ability to produce high electrical conductivity based on type of materials used. Mismatching of inappropriate materials and manufacture may lead to the inferior performance of PEM fuel cells. Hence, material development was determined crucial to balance the overall performance of PEM fuels including the mechanical properties and electrical conductivity of the materials. Studies on conductive polymer composites (CPCs) offered filler orientation as an alternative method to enhance the overall performance of bipolar plate. Filler orientations permit an excellent conductivity network formation while controlling the filler alignment based on required applications. This paper reviewed various studies of filler orientations including materials used and methods of manufacture of CPC materials for the effective development of bipolar plate.

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“…As the ferrite and ferromagnetic metallic fibers are generally characterized with shape anisotropy, they can be used as the structural and functional materials in various fields. Meanwhile, due to high absorption and low-cost production, more attention has been paid to silicon carbide and graphite by some researchers (Panaitescu et al, 2014;Xu et al, 2014). The silicon carbide and graphite have been used as microwave absorbents in various forms because of their lightweight, low cost, and good design flexibility Wu, Ting, Wang, et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

The research of EM wave absorbing properties of ferrite/silicon carbide/graphite three-layer composite coating knitted fabrics

Liu

Zhao

Xiao

2015

The Journal of The Textile Institute

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The polyester knitted fabric was used as a basilicon carbide structure material. A three-layer composite coating finishing was applied to the structure material using ferrite, silicon carbide, and graphite absorbing materials. The single factor test method was used in this series of research. The impact on dielectric constant and loss tangent of absorbtion of each agent and the coating thickness of each layer were studied. From these results, the three-layer composite coating materials that had excellent absorbing properties were selected and prepared. The results showed that when the ferrite (60 wt%) was used as a bottom layer, the silicon carbide (36 wt%) was used as a middle layer and the graphite (24 wt%) was used as a surface layer with the respective thickness of 0.5, 0.3, and 0.3 mm, an excellent microwave absorbing property was noted for the three-layer composite coating material. In order to meet the requirements for the engineering field, physilicon carbideal and mechanical properties of the microwave absorbing materials were also characterized.

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Influence of melt processing induced orientation on the morphology and mechanical properties of poly(styrene-b-ethylene/butylene-b-styrene) block copolymers and their composites with graphite

Cited by 19 publications

References 38 publications

Morphology, mechanical properties and electromagnetic shielding effectiveness of poly(styrene‐b‐ethylene‐ran‐butylene‐b‐styrene)/carbon nanotube nanocomposites: effects of maleic anhydride, carbon nanotube loading and processing method

Morphology, mechanical properties and electromagnetic shielding effectiveness of poly(styrene‐b‐ethylene‐ran‐butylene‐b‐styrene)/carbon nanotube nanocomposites: effects of maleic anhydride, carbon nanotube loading and processing method

Influence the Fillers Orientation: A Short Review

The research of EM wave absorbing properties of ferrite/silicon carbide/graphite three-layer composite coating knitted fabrics

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