Multifunctional polylactic acid composites filled with activated carbon particles obtained from acrylic fibrous wastes

Naeem, Salman; Baheti, Vijay; Militký, Jiřı́; Ali, Azam

doi:10.1002/pc.24695

Cited by 9 publications

(6 citation statements)

References 30 publications

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“…The electrical resistance is related to the electrically conductive channels. More electrically conductive channels (particles, fillers, conductive fibers, and so on) means lower electrical resistance . In present work, the effect of different concentrations of silver nitrate on electrical conductivity of coated fabrics was studied.…”

Section: Resultsmentioning

confidence: 97%

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Ali

Baheti

Militký

et al. 2018

J of Applied Polymer Sci

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The present study deals with the deposition of silver particles onto knitted fabrics for possible applications in electrotherapy. The performance of silver-coated fabrics was evaluated based on number of properties such as electrical conductivity, physiological comfort, antibacterial, and durability. Furthermore, the conductive fabrics were subjected to various repeated extensions and change in electrical resistivity was examined to simulate the performance of electrodes under various movements of human body. With increase in extension till 80%, very small change in volume electrical resistance was observed and after 90% extension, the electrical resistance was found to increase significantly. The volume resistance was found to remain constant for repeated extensions of over 100 cycles and also there was insignificant change in electrical resistivity when constant current was applied over prolonged time. The utility of silver-coated fabrics can be expected as flexible textile electrodes in transcutaneous electrical nerve stimulation electrotherapy applications.

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Section: Resultsmentioning

confidence: 97%

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Ali

Baheti

Militký

et al. 2018

J of Applied Polymer Sci

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“…In particular, they confirmed the electromagnetic wave absorption properties of the Fe-Ac/PVA composites; the results indicated that this composite material exhibits excellent electromagnetic wave absorption properties in the frequency range of 4–6 GHz and that the composite material with 20% AC has a return loss value of −32.5 dB at a frequency of 4.65 GHz. Naeem et al [ 91 ] reported research results for the development of multifunctional PLA composites by synthesizing AC from acrylic fiber waste ( Figure 4 ). Acrylic fibrous waste–AC particles were added to PLA at 1, 5, and 10 wt.% to prepare AC/PLA composite films by solvent casting, and their electrical conductivity, EMI shielding, thermomechanical and thermal stability properties were investigated.…”

Section: Electrical and Emi Shielding Properties Of Activated Carbon/...mentioning

confidence: 99%

“…Fe-AC (20%)/PVA composites using the solution method [90] Microwave absorption (−32.5 dB) -Acrylic fibrous waste-AC (10 wt.%)/PLA composites via solvent casting [91] EMI shielding properties (16 dB) and electrical conductivity (10,000 Ω•cm) EMI shielding properties: 220% (compared with AC 1 wt.%) Electrical conductivity: 5 × 10 15 Ω•cm (Pure PLA) AC (28.9%)/polyester composites using the VARTM process [92] EMI shielding properties (93%) 124.63% (compared with AC 0%) AC (8 wt.%)/PU composites using the chemical blowing method [93] Microwave absorption (10 dB) -AC (30 wt.%)/acrylic resin(AR) composites using the solution process [94] Electrical resistivity (10 4 Ω/sq) Pure AR (10 11 Ω/sq) ACF/epoxy composites using filament winding machine [95] EMI shielding properties (38 dB) 31% (compared with CF/epoxy) AC (30 wt.%)/acrylic resin(AR) composites using the solution process [96] EMI shielding effectiveness (−36 dB) 1400% (compared with AR)…”

Section: Preparation Condition Electrical and Emi Shielding Propertie...mentioning

confidence: 99%

“…For example, due to the porous structure, the molten polymer enters the pores of the activated carbon to form a three-dimensional network to improve the tensile properties of the composite material, or to improve the electrical properties or electromagnetic wave shielding properties of the polymer composite material due to its electrical conductivity. Owing to its low cost, excellent stability, and antistatic and electromagnetic interference shielding functions, AC/polymer composite material can be used in various applications, such as automobile parts and shielding materials [ 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 ].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Activated Carbon/Polymer Composites: A Review

Yim,

Kim

2023

Polymers

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Activated carbon (AC) and activated carbon fibers (ACFs) are materials with a large specific surface area and excellent physical adsorption properties due to their rich porous structure, and they are used as electrode materials to improve the performance of adsorbents or capacitors. Recently, multiple studies have confirmed the applicability of AC/polymer compo-sites in various fields by exploiting the unique physical and chemical properties of AC. As the excellent mechanical properties, stability, antistatic and electromagnetic interference (EMI) shielding functions of activated carbon/polymer composite materials were confirmed in recent studies, it is expected that activated carbon can be utilized as an ideal reinforcing material for low-cost polymer composite materials. Therefore, in this review, we would like to describe the fabrication, characterization and applicability of AC/polymer composites.

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“…Surface modification/functionalization of carbon-based filler is often required to enhance the fiber (filler) matrix bonding and compatibility. Recently, activated carbon particles have been discussed for the enhancement of electrical conductivity and a fiber-matrix interface [ 23 ]. In another study, the thermal and mechanical properties of composites were improved by the reinforcement of bamboo charcoal particles in a combination of polylactic acid resin [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Conductive, High Strength and Electromagnetic Interference (EMI) Shielded Green Composites Based on Waste Materials

Ali

Hussain

Tahir³

et al. 2022

Polymers

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Conventional conductive homopolymers such as polypyrrole and poly-3,4-ethylenedioxythiophene (PEDOT) have poor mechanical properties, for the solution to this problem, we tried to construct hybrid composites with higher electrical properties coupled with high mechanical strength. For this purpose, Kevlar fibrous waste, conductive carbon particles, and epoxy were used to make the conductive composites. Kevlar waste was used to accomplish the need for economics and to enhance the mechanical properties. At first, Kevlar fibrous waste was converted into a nonwoven web and subjected to different pretreatments (chemical, plasma) to enhance the bonding between fiber-matrix interfaces. Similarly, conductive carbon particles were converted into nanofillers by the action of ball milling to make them homogeneous in size and structure. The size and morphological structures of ball-milled particles were analyzed by Malvern zetasizer and scanning electron microscopy. In the second phase of the study, the conductive paste was made by adding the different concentrations of ball-milled carbon particles into green epoxy. Subsequently, composite samples were fabricated via a combination of prepared conductive pastes and a pretreated Kevlar fibers web. The influence of different concentrations of carbon particles into green epoxy resin for electrical conductivity was studied. Additionally, the electrical conductivity and electromagnetic shielding ability of conductive composites were analyzed. The waveguide method at high frequency (i.e., at 2.45 GHz) was used to investigate the EMI shielding. Furthermore, the joule heating response was studied by measuring the change in temperature at the surface of the conductive composite samples, while applying a different range of voltages. The maximum temperature of 55 °C was observed when the applied voltage was 10 V. Moreover, to estimate the durability and activity in service the ageing performance (mechanical strength and moisture regain) of developed composite samples were also analyzed.

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Multifunctional polylactic acid composites filled with activated carbon particles obtained from acrylic fibrous wastes

Cited by 9 publications

References 30 publications

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Preparation and Characterization of Activated Carbon/Polymer Composites: A Review

Fabrication of Conductive, High Strength and Electromagnetic Interference (EMI) Shielded Green Composites Based on Waste Materials

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