Fabrication and application of electrically conducting composites for electromagnetic interference shielding of remotely piloted aircraft systems

Turczyn, Roman; Krukiewicz, Katarzyna; Katunin, Andrzej; Sroka, Jan; Sul, Przemysław

doi:10.1016/j.compstruct.2019.111498

Cited by 84 publications

(31 citation statements)

References 65 publications

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“…Composite are widely used in various fields. Composites are mostly implemented in the packaging materials [19], industrial equipment [20], the sports equipment [21], the automotive industry [22], [23], the aircraft and military [24], [25] and the aerospace applications [26], [27].…”

Section: The Effect Of Speed On Wear Rate and Coefficient Of Friction Of Rice Plant Fiber Reinforced Composite As A Brake Lining Materialmentioning

confidence: 99%

The effect of speed on wear rate and coefficient of friction of rice plant fiber reinforced composite as a brake lining material

2020

IJETER

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A rice plant fiber reinforced composite is composed from a matrix in the form of polyester resin and a dispersed phase in the form of aluminum powder, fiberglass and rice plant fiber. This composite has the potential to replace asbestos as a brake lining material, because asbestos powder is harmful to human health. In use, the brake lining will move and rub against another component. The purpose of this research was to determine the effect of speed on wear rate and the coefficient of friction. The composite material mixture that has been in accordance with the composition is put into the brake lining mold and then pressed and sintered. Furthermore, tests for wear and friction resistance are carried out to obtain the wear rate and coefficient of friction. The results showed that the higher the speed the higher the wear rate. In dry operating conditions, increasing the speed from 1000 rpm to 3000 rpm will provide an increase in wear rate of 11.67%. Meanwhile, in wet operating conditions, the increase in speed from 1000 rpm to 3000 rpm increases the wear rate by 11.35%. At the same speed, the wear rate under dry operating conditions is higher than the wear rate under wet operating conditions. In the friction test under dry operating conditions, there was an increase in the coefficient of friction of 10.46% when the speed was increased from 1000 rpm to 3000 rpm. The coefficient of friction also increased by 6.86% when the test was carried out under wet operating conditions. The coefficient of friction under wet operating conditions is lower than the coefficient of friction under dry operating conditions at the same speed. Metallographic observations of the friction surface show a cohesive failure due to friction.

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Section: The Effect Of Speed On Wear Rate and Coefficient Of Friction Of Rice Plant Fiber Reinforced Composite As A Brake Lining Materialmentioning

confidence: 99%

The effect of speed on wear rate and coefficient of friction of rice plant fiber reinforced composite as a brake lining material

2020

IJETER

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“…Compared with the traditional conductive materials, conductive polymer composites (CPCs) with low cost, ease of processing, tunable conductivity and lightweight have been attracting increasing interest in a wide variety of fields (such as anti-static materials, electromagnetic shielding materials, positive temperature coefficient materials, sensor, conductor, and so on). [1][2][3][4][5][6][7][8][9] CPCs are prepared by dispersing conductive fillers in the insulating polymer matrix to form conductive networks. The percolation theory indicates that the resistivity of CPCs decreases several orders of magnitude when the addition of filler arrives at a critical content called the percolation threshold.…”

Section: Introductionmentioning

confidence: 99%

Design of sandwich structure conductive polypropylene/styrene‐butadiene‐styrene triblock copolymer/carbon black composites with inherent morphological tunability

Zichen

Yang

Sun

et al. 2021

J of Applied Polymer Sci

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The insulator-conductor transition of conductive polymer composites (CPCs) can be ascribed to the fabrication of conductive networks, and the morphology of conductive networks plays a significant role in the electrical conductivity. This study presents CPCs with inherent morphology tunability which can be controlled by kinetic methods (i.e., mixing procedures and sequences, and polymer melt viscosity). Polypropylene (PP)/styrene-butadiene-styrene block copolymer (SBS) (50/50, in volume)/10 phr (parts per hundred of the polymer matrix) conductive carbon black (CB) composites prepared by different compounding sequences (PP/CB composites mixed with SBS, SBS/CB composites mixed with PP, and PP/SBS blend mixed with CB) are named as PC 10 S, SC 10 P, and PSC 10. With the difference between the phase morphologies, distribution, and dispersion of CB, the PP/SBS/CB composites realize seven orders of magnitude difference in resistivity. The volume resistivity (ρ v

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“…Polymer matrices influence the dispersion and distribution of fillers and formation of filler network structure within the composite materials and thus they can enhance the shielding effects. Polymer composites as efficient EMI shields have already been used in practical applications in the sphere of automobiles, aerospace, aircraft, power electronics, or communication systems 1‐4 . As outlined, EMI shielding properties to the polymer composites can be imparted by the incorporation of different types of fillers.…”

Section: Introductionmentioning

confidence: 99%

Cross‐linking, mechanical, dynamical, and EMI absorption shielding effectiveness of NBR based composites filled with combination on ferrite and carbon based fillers

Kruželák

Kvasničáková

Bochkarev

et al. 2021

Polymers for Advanced Techs

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In the current study, manganese‐zinc ferrite in a concentration scale ranging from 100 to 500 phr was incorporated into acrylonitrile‐butadiene rubber having the constant amount of carbon black (20 phr) or carbon nanotubes (5 phr). The work was focused on the investigation of fillers combination on curing process, physical‐mechanical, and dynamic characteristics of composites. The electromagnetic interference absorption shielding efficiency of composites was subsequently investigated at low frequencies. The results revealed that composites filled with a combination of ferrite and CB are able to efficiently shield electromagnetic radiation in the tested frequency range 1 MHz to 3 GHz, while electromagnetic interference absorption shielding performance of CNT/ferrite composites was insufficient. The reason can be attributed to the outstanding increase of electrical conductivity of composites filled with combination of ferrite and CNT. As the best absorption shielding material can be considered the CB/ferrite composite containing 100 phr of ferrite, as it exhibited the widest absorption frequency bandwidth at return loss of −10 and −20 dB. The presence of ferrite in composites resulted in the decrease of cross‐link density, modification of curing characteristics and physical‐mechanical properties, and no significant influence on glass transition temperature.

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Fabrication and application of electrically conducting composites for electromagnetic interference shielding of remotely piloted aircraft systems

Cited by 84 publications

References 65 publications

The effect of speed on wear rate and coefficient of friction of rice plant fiber reinforced composite as a brake lining material

The effect of speed on wear rate and coefficient of friction of rice plant fiber reinforced composite as a brake lining material

Design of sandwich structure conductive polypropylene/styrene‐butadiene‐styrene triblock copolymer/carbon black composites with inherent morphological tunability

Cross‐linking, mechanical, dynamical, and EMI absorption shielding effectiveness of NBR based composites filled with combination on ferrite and carbon based fillers

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