2020
DOI: 10.1002/advs.202002131
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Self‐Healing of Electrical Damage in Polymers

Abstract: Polymers are widely used as dielectric components and electrical insulations in modern electronic devices and power systems in the industrial sector, transportation, and large appliances, among others, where electrical damage of the materials is one of the major factors threatening the reliability and service lifetime. Self‐healing dielectric polymers, an emerging category of materials capable of recovering dielectric and insulating properties after electrical damage, are of promise to address this issue. This… Show more

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Cited by 60 publications
(53 citation statements)
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References 207 publications
(302 reference statements)
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“…In electrical devices, the damaging event always happens in dielectric polymer, which includes the electrical treeing process as well as electrochemical, photochemical, and thermochemical degradation, followed by the catastrophic breakdown. This process causes the formation of dendric hollow cracks of few micrometers in the tube diameter [ 33 ]. Usually, it is initiated by an insulation defect like impurities, gas voids, mechanical defects, or conducting projections that cause excessive electrical field stress within small regions of the dielectric.…”
Section: Self-healing Polymer In Electronic Applicationsmentioning
confidence: 99%
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“…In electrical devices, the damaging event always happens in dielectric polymer, which includes the electrical treeing process as well as electrochemical, photochemical, and thermochemical degradation, followed by the catastrophic breakdown. This process causes the formation of dendric hollow cracks of few micrometers in the tube diameter [ 33 ]. Usually, it is initiated by an insulation defect like impurities, gas voids, mechanical defects, or conducting projections that cause excessive electrical field stress within small regions of the dielectric.…”
Section: Self-healing Polymer In Electronic Applicationsmentioning
confidence: 99%
“…Moreover, stretchable polymer chain that has been incorporated with conductive material can form a self-healable cross-linked network. The polymers used included poly (vinylidene fluoride-co-hexafluoropropylene), poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), low-density polyethylene (LDPE), cross-linked polyethylene (XLPE) polypropylene (PP), polyimide (PI), epoxy, polydimethylsiloxane (PDMS), and polyvinylidene fluoride (PVDF) [ 33 ]. The above-mentioned polymers interacted with the ionic liquid through strong ion–dipole interaction to form a self-healable cross-linked network, which exhibits reasonable ionic conductivity.…”
Section: Self-healing Polymer In Electronic Applicationsmentioning
confidence: 99%
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“…8 The EB takes place via three stages. 9,10 The initiation of the electrical treeing arises rapidly during the inception stage from the defects within the elastomer. Then, the electrical tree propagates through the elastomer with a decelerated rate at the tree propagation stage.…”
Section: Introductionmentioning
confidence: 99%