Electrical conductivity of epoxy-graphene and epoxy-carbon nanofibers composites subjected to compressive loading

Govorov, A. A.; Wentzel, Daniel; Miller, Sandi G.; Kanaan, Ahmed; Sevostianov, Igor

doi:10.1016/j.ijengsci.2017.11.014

Cited by 36 publications

(14 citation statements)

References 20 publications

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“…There are currently several semiconducting polymers such as polyaniline and polypyrrole, which can be used for the production of antistatic packaging, but their processing in conventional thermoplastic processing equipment is complex and can make the packaging process unfeasible. Conversely, a polymer may exhibit the conductive properties with the addition of different allotropic carbon forms such as flexible graphite, expanded graphite, carbon nanotubes, carbon black, and carbon fiber, or by the addition of conductive ceramics, nickel, silver, or other metals …”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

Silva

Menezes

Montagna

et al. 2018

J of Applied Polymer Sci

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Poly(lactic acid) (PLA) is a biodegradable aliphatic polymer obtained from renewable sources; its main application is in the packaging sector. Electronic components require the use of antistatic packaging that prevents damage and electric shock. As PLA has no conductive characteristics, it requires the addition of allotropic carbon forms such as conductive carbon black to make the polymer less resistive as the dissipative material and making it suitable for the manufacture of antistatic packaging. In this study, PLA was melt blended with 5, 10, and 15 wt % of carbon black. The composites were prepared using a high‐speed mixer. Samples were characterized by Izod impact resistance tests, scanning electron microscopy, thermal properties, electrical characterization, and biodegradation tests in garden soil. The addition of carbon black in the PLA matrix increases the temperature of degradation and decreases the crystallinity degree and the impact resistance of the composites. However, carbon black is a great option to increase the electrical conductivity of PLA. The addition of carbon black in PLA makes the composite less resistive and suitable for use as antistatic packaging for the transportation and storage of electronic components. Furthermore, this composite does not cause damage to the environment as the carbon black does not interfere in the degradation mechanism of PLA. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47273.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

Silva

Menezes

Montagna

et al. 2018

J of Applied Polymer Sci

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“…Like in the case of macroscopical structures, a combination of different materials in a nano-or micro-structure can lead toward superior mechanical behavior [23][24][25]. Composite beams can offer more possibilities than homogeneous structures [26][27][28][29][30][31]. This has a price -more complex models are needed to describe such problems which are even more harder to solve if nonisothermal environmental conditions are involved [1,[32][33][34].…”

Section: Introduction Motivation and Outlinementioning

confidence: 99%

On thermomechanics of multilayered beams

Barretta

Čanađija

Sciarra

2020

International Journal of Engineering Science

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In this paper, the mechanical behavior of multilayered small-scale beams in nonisothermal environment is investigated. Scale phenomena are modeled by means of the mathematically well-posed and experimentally consistent stress-driven integral formulation of elasticity. The present research extends the treatment in [1] confined to elastically homogeneous nano-scopic structures. It is shown that the non-locality leads to a complex coupling between axial and transverse elastic displacements. Such a size-dependent phenomenon makes the solution of the relevant nonlocal thermoelastostatic problem, governed by a system of two ordinary differential equations with ten standard boundary conditions and non-classical constitutive boundary conditions, significantly more involved with respect to treatments in literature. Thus, a novel solution methodology, based on Laplace transforms, is proposed and illustrated by examining simple structural schemes of current

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“…These researches have demonstrated that electron tunneling effect between the CNT nanofiller and polymer matrix plays a critical role for the excellent electrical conductivity of overall nanocomposites. However, only very limited number of micromechanics-based researches investigated the influence of mechanical strain on the effective electrical resistance and strain sensitivity factor of polymer nanocomposites [15,27]. This issue is crucial to the design of high sensitivity strain sensors.…”

Section: Introductionmentioning

confidence: 99%

Modeling the strain‐dependent electrical resistance and strain sensitivity factor of CNT‐polymer nanocomposites

Xia

Zhao

Fang

et al. 2020

Math Methods in App Sciences

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Recent experiments have revealed the strain-dependent phenomenon of electrical resistance for CNT-polymer nanocomposites, but at present no theory seems to exist to explain such observations. In this paper, a strain-dependent homogenization scheme with considerations of volume change of the nanocomposite and strain-dependent electron tunneling is developed to this end. The effective electrical conductivity and secant moduli of the nanocomposite are selected as the two homogenization parameters. The thermodynamic driving force and the

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Electrical conductivity of epoxy-graphene and epoxy-carbon nanofibers composites subjected to compressive loading

Cited by 36 publications

References 20 publications

Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

On thermomechanics of multilayered beams

Modeling the strain‐dependent electrical resistance and strain sensitivity factor of CNT‐polymer nanocomposites

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