Improved interfacial mechanical strength and synergy in properties of nano-carbon black reinforced rubber composites containing functionalized graphite nanoplatelets

Kumar, Vineet; Parvin, Nargish; Manikkavel, Amutheesan; Lee, Dong-Yeon; Mandal, Tapas K.; Joo, Sang Woo; Park, Sang‐Shin

doi:10.1016/j.surfin.2023.102941

Cited by 7 publications

(3 citation statements)

References 54 publications

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“…The hysteresis loss was determined by following our previous work. 44 In Figure 3d, the unfilled sample exhibited similar loading patterns in different strain ranges. At 10% strain, the sample could sustain the compressive force of 25 N. At 20% strain, the sample could sustain the compressive force of 70 N. At 30% strain, the sample could sustain the compressive force of 130 N. These results make it clear that the unfilled sample is capable of providing stable performance during compressive cyclic operation.…”

Section: ■ Results and Discussionmentioning

confidence: 83%

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The Electro-Mechanical Energy Harvesting Configurations in Different Modes from Machine to Self-Powered Wearable Electronics

Manikkavel,

Kumar,

Alam

et al. 2023

ACS Appl. Electron. Mater.

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Recently, self-powered wearable electronics have gained interest among scientists globally because of the numerous configurations available for portable and small power devices. The current research explores the fabrication of flexible devices under the principle of piezoelectric transducers. The materials used in fabrication were versatile dielectric and electro-active silicone rubber (SR) and multiwalled carbon nanotubes (MWCNT). The tensile moduli of the MWCNT 5 parts per hundred rubber (phr) and unfilled samples are 2.034 and 0.711 MPa, respectively. Adding MWCNT up to 5 phr improved the voltage output of piezo-electric material under mechanical deformation. Energy-harvesting experiments showed that compressive specimens produced 3250% higher voltage output than tensile specimens for 5 phr samples during 30% of strain by machine. MWCNT-reinforced silicone rubber's voltage output was measured during different human motions, including finger and wrist bending of 0−90 deg and finger and leg pressing. A higher voltage of ∼8 mV is harvested from leg pressing than from other human movements and ∼4 mV from finger pressing. Further research is needed to develop custom-built, flexible energy harvesters. Overall, these devices are suitable for powering portable devices because of their self-powering ability and can replace batteries in devices like calculators or smartwatches.

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Section: ■ Results and Discussionmentioning

confidence: 83%

“…As the number of cycles increases, the rate of bond breakage and reformation is reduced, and an equilibrium occurs in the bond breakage and reformation. The hysteresis loss was determined by following our previous work …”

Section: Resultsmentioning

confidence: 99%

The Electro-Mechanical Energy Harvesting Configurations in Different Modes from Machine to Self-Powered Wearable Electronics

Manikkavel,

Kumar,

Alam

et al. 2023

ACS Appl. Electron. Mater.

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“…Previously, methods to enhance the interfacial bonding strength between carbon materials and rubber substrates have been reported, which are novel and advanced but involve the presence of concentrated sulfuric and phosphoric acids in the modification process. This can cause environmental and safety hazards 32–34 . In this study, Fe 3+ , Ni 2+ , and Al 3+ are used with PDA to modify CF to improve the interfacial layer between the fibers and rubber, this is a “green” modification method that does not compromise the strength and integrity of the CF itself.…”

Section: Introductionmentioning

confidence: 99%

Improving interface performance between the fibers and rubber using metal cations synergistic polydopamine to modify carbon fibers

Zhao,

Chen,

Zhang

et al. 2024

Polymers for Advanced Techs

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CF‐PDA‐M hybrid fillers are prepared by three metal cations (M) assisting polydopamine (PDA) through Fe3+, Ni2+, and Al3+. The metal cations promote the polymerization of PDA on the fiber surface, shorten the modification time of the fibers, and ensure that the short‐cut carbon fibers (CF) do not agglomerate during water bath stirring while keeping the structure of the CF undamaged, which is a green and efficient method. After PDA modification, the roughness and surface activity of the fiber surface increase. Finally, CF‐PDA‐M is used as a filler and added to neoprene latex and natural latex, which are prepared into composites by wet blending, and the CF are characterized by different techniques. The results show that the hydroxyl and amino groups on the surface of CF‐PDA‐M increase the cross‐linking density of the composites, establish a good stress cross‐linking network, shorten the vulcanization time, effectively prevent the agglomeration phenomenon of the CF in the rubber, and improve the dispersion of the CF in the composite. After modification, the tensile strength and 300% constant tensile strength of CF‐PDA‐M increase by more than 10% and 30%, respectively, over CF composites, and the rolling resistance is reduced. This study provides a new and effective strategy for CF surface functionalization, which improves the processing efficiency and mechanical properties of rubber products and has a broad application prospect in the rubber industry.

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A novel method for exploring the wear resistance characteristics of ethylene propylene diene monomers‐polyamide elastomers with nano‐graphite

Hao,

Liu,

Liu

2024

J of Applied Polymer Sci

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Hansen solubility parameter theory and rheological laws were employed to investigate the microscopic cross‐linked network structure of the wear‐resistant elastomer based on ethylene propylene diene monomers (EPDM)‐polyamide elastomers (PAE)/graphite. With the condition of the same carbon black content, the wear volume of EPDM‐PAE increased after added wax powder and decreased by adding five percent graphite. The role of microscopic cross‐linked network on the wear‐resistant properties was specifically characterized by a highly linear synergistic relationship between wear volume and cross‐link density. The motion ability of micro chain segments has been characterized by the frequency sweep and the influence of the filler network has been represented by the strain sweep. Scanning electron microscope was used to characterize the micro filling structure, while stereomicroscope view was used to explore the wear interface. It was noteworthy that the graphite network layer formed on the abrasive surface on top of the abrasive grit wear transformed the wear mechanism into composite wear. This work was an innovative perspective to study rubber‐plastic/solid lubricant‐based wear‐resistant elastomers, based on microscopic network structures, which could help to obtain new wear‐resistant elastomers with specific properties.

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Improved interfacial mechanical strength and synergy in properties of nano-carbon black reinforced rubber composites containing functionalized graphite nanoplatelets

Cited by 7 publications

References 54 publications

The Electro-Mechanical Energy Harvesting Configurations in Different Modes from Machine to Self-Powered Wearable Electronics

The Electro-Mechanical Energy Harvesting Configurations in Different Modes from Machine to Self-Powered Wearable Electronics

Improving interface performance between the fibers and rubber using metal cations synergistic polydopamine to modify carbon fibers

A novel method for exploring the wear resistance characteristics of ethylene propylene diene monomers‐polyamide elastomers with nano‐graphite

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