Foam injection molding of polypropylene/stainless steel fiber composites for efficient EMI shielding

Ameli, Amir; Nofar, Mohammadreza; Wang, S.; Park, Chul

doi:10.1063/1.4942310

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…Recently, researchers have prepared bipolar plates based on conductive polymer composites (CPCs) to overcome the aforementioned disadvantages. Besides applications in bipolar plates [16][17][18][19], CPCs have recently been investigated for many other applications, such as electromagnetic interference shielding [20][21][22] and charge storage [23][24][25]. Such wide range of potential applications is attributed to the unique characteristics of CPCs with tunable electrical and thermal conductivity, good corrosion resistance, and high specific mechanical properties, as well as low weight and low cost.…”

Section: Introductionmentioning

confidence: 99%

Extruded polycarbonate/Di-Allyl phthalate composites with ternary conductive filler system for bipolar plates of polymer electrolyte membrane fuel cells

Naji¹,

Krause²,

Pötschke³

et al. 2019

Smart Mater. Struct.

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Here, we report multifunctional polycarbonate (PC)-based conductive polymer composites (CPCs) with outstanding performance manufactured by a simple extrusion process and intended for use in bipolar plate (BPP) applications in polymer electrolyte membrane (PEM) fuel cells. CPCs were developed using a ternary conductive filler system containing carbon nanotube (CNT), carbon fiber (CF), and graphite (G) and by introducing di-allyl phthalate (DAP) as a plasticizer to PC matrix. The samples were fabricated using twin-screw extrusion followed by compression molding and the microstructure, electrical conductivity, thermal conductivity, and mechanical properties were investigated. The results showed a good dispersion of the fillers with some degree of interconnection between dissimilar fillers. The addition of DAP enhanced the electrical conductivity and tensile strength of the CPCs. Due to its plasticizing effect, DAP reduced the processing temperature by 75 °C and facilitated the extrusion of CPCs with filler loads as high as 63 wt% (3 wt% CNT, 30 wt% CF, 30 wt% G). Consequently, CPCs with the through-plane electrical, in-plane electrical and thermal conductivities and tensile strength of 4.2 S cm −1 , 34.3 S cm −1 , 2.9 W m −1 K −1 , and 75.4 MPa, respectively, were achieved. This combination of properties indicates the potential of PC-based composites enriched with hybrid fillers and plasticizers as an alternative material for BPP application.

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Section: Introductionmentioning

confidence: 99%

Extruded polycarbonate/Di-Allyl phthalate composites with ternary conductive filler system for bipolar plates of polymer electrolyte membrane fuel cells

Naji¹,

Krause²,

Pötschke³

et al. 2019

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…CPC materials are generally receiving considerable attention from the academia and industry because of the unique combination of electrical, thermal, and mechanical properties that they offer. They have been considered for a number of functional applications including BPP , electromagnetic interference shielding , and charge storage . Compared to metallic and ceramic composites, CPCs present a superior resistance to chemicals and corrosion, inexpensive materials and processing methods, higher specific toughness and ductility, and lighter weight .…”

Section: Introductionmentioning

confidence: 99%

Hybrid conductive filler/polycarbonate composites with enhanced electrical and thermal conductivities for bipolar plate applications

et al. 2018

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Conductive polymer composites (CPCs) with high electrical and thermal conductivities are demanded for bipolar plates of fuel cells. In this work, CPCs of polycarbonate (PC) filled with carbon nanotube (CNT), carbon fiber (CF), graphite (G), and their double and triple hybrids were prepared using solution casting method followed by compression molding. The results showed that the electrical percolation thresholds for the PC‐CNT and PC‐CF were ~1 wt% and ~10 wt%, respectively, while no clear threshold was found for PC‐G composites. Addition of 3–5 wt% CNT improved the electrical conductivity of PC‐CF and PC‐G systems up to 6 orders of magnitude and enhanced the thermal conductivity as much as 65%. The results of triple hybrid CPCs (with constant loading of 63 wt%) indicated that the combination of highest electrical and thermal conductivities is achieved when the CF and CNT loadings were near their percolation thresholds. Therefore, a triple filler system of 3 wt% CNT, 10 wt% CF, and 50 wt% G resulted in a composite with the through‐plane and in‐plane electrical conductivity, and thermal conductivity values of 12.8 S/cm, 8.3 S/cm, and 1.7 W/m•K, respectively. The results offer a combination of properties surpassing the existing values and suitable for high‐conductivity applications such as bipolar plates. POLYM. COMPOS., 40:3189–3198, 2019. © 2018 Society of Plastics Engineers

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Multilayer structured PANI/MXene/CF fabric for electromagnetic interference shielding constructed by layer-by-layer strategy

Yin

Wang

2020

Colloids and Surfaces A: Physicochemical and Engineering Aspect

106

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Foam injection molding of polypropylene/stainless steel fiber composites for efficient EMI shielding

Cited by 3 publications

References 35 publications

Extruded polycarbonate/Di-Allyl phthalate composites with ternary conductive filler system for bipolar plates of polymer electrolyte membrane fuel cells

Extruded polycarbonate/Di-Allyl phthalate composites with ternary conductive filler system for bipolar plates of polymer electrolyte membrane fuel cells

Hybrid conductive filler/polycarbonate composites with enhanced electrical and thermal conductivities for bipolar plate applications

Multilayer structured PANI/MXene/CF fabric for electromagnetic interference shielding constructed by layer-by-layer strategy

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