Damage detection and self-healing of carbon fiber polypropylene (CFPP)/carbon nanotube (CNT) nano-composite via addressable conducting network

Joo, Sung Jun; Yu, Myeong Hyeon; Kim, Won Seock; Kim, Kwang Ho

doi:10.1016/j.compscitech.2018.07.035

Cited by 41 publications

(23 citation statements)

References 38 publications

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“…The composite displayed a resistivity of 19.44 ohm/mm, and after stimulating an electric current of 1.3 A for 30 min, the material generated a temperature of 181 °C. The temperature reached melt polypropylene, thus allowing the polymer to flow for self-healing on cracks with up to 96.83% efficiency [ 110 ] ( Figure 14 ).…”

Section: Intrinsic Self-healing Materials By Joule Effectmentioning

confidence: 99%

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Self-Healing Polymer Nanocomposite Materials by Joule Effect

et al. 2021

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Nowadays, the self-healing approach in materials science mainly relies on functionalized polymers used as matrices in nanocomposites. Through different physicochemical pathways and stimuli, these materials can undergo self-repairing mechanisms that represent a great advantage to prolonging materials service-life, thus avoiding early disposal. Particularly, the use of the Joule effect as an external stimulus for self-healing in conductive nanocomposites is under-reported in the literature. However, it is of particular importance because it incorporates nanofillers with tunable features thus producing multifunctional materials. The aim of this review is the comprehensive analysis of conductive polymer nanocomposites presenting reversible dynamic bonds and their energetical activation to perform self-healing through the Joule effect.

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Section: Intrinsic Self-healing Materials By Joule Effectmentioning

confidence: 99%

“… Cross sectional SEM images of carbon fiber reinforced polypropylene (CFPP) mixed with CNTs: ( a ) initial, ( b ) damaged, and ( c ) self-healed samples [ 110 ]. Reproduced with permission from Joo, S.J; Composites Science and Technology; published by Elsevier, 2018.…”

Section: Figurementioning

confidence: 99%

Self-Healing Polymer Nanocomposite Materials by Joule Effect

et al. 2021

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“…Some authors [10] propose to use the energy conservation equation in the following form to calculate the value of electrode erosion:…”

Section: Optimization Of the Discharge Pulse Supply Formmentioning

confidence: 99%

The service life increasing of bushings by electro-acoustic spraying

et al. 2021

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The control of obtaining the predicted physico-mechanical properties of protective coatings of machine parts in a complex acoustic field by the method of electroacoustic spraying is carried out through the use of highly concentrated sources of electrical energy. The prediction of the physico-mechanical properties of the hardened surface of machine parts is made on the basis of the experiment planning methodology with non-orthogonal planning matrices. The adequacy of the obtained mathematical models was carried out using the criterion of adequacy of Fisher. Physical fundamentals of mass transfer of materials to a substrate in a complex acoustic field, realized through the transformation of longitudinal vibrations, to longitudinal-torsional, have been developed, while the amplitude of oscillation of the acoustic system is 5 to 15 micrometers. The use of longitudinal-torsional ultrasonic waveguides in this process and ultrafast cooling temperatures make it possible to form elements such as carbides, carbonitrides, and intermetallic compounds on the surface of a conductive material. The subsequent impact with a shift against the surface produced by the waveguide - electrode leads to irreversible microplastic deformations of the surface layer, which provide the specified parameters of surface quality and its physico-mechanical properties.

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“…Results reveal the enhanced electrical resistivity in thickness direction with the high resolution of damage sensing, in addition to significant self-mending efficiency (96.83%), during the fourth cycle of repeatable three-point bending test. 72…”

Section: Novel Trends In Self-healing Carbon Nanotubes Polymer Compositesmentioning

confidence: 99%

Novel trends in self-healable polymer nanocomposites

Idumah

2019

Journal of Thermoplastic Composite Materials

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Polymer composites for structural applications are prone to damage emanating from cracks which are formed within the material, where detection is not easy and repairing almost not feasible. Material cracking results in mechanical deterioration of polymer composites for microelectronic components, which can result in electrical failure. Microcracking occurring as a result of thermally and mechanically induced fatigue is challenging for effective polymer performance. Self-healing composites are materials exhibiting capability of automatically recovering when damaged. They derive their inspiration through biological systems similar to the human skin, which exhibit a natural tendency to undergo healing by themselves. Stretchability is a factor enabling electronic devices to properly align to irregular 3-D structures, such as soft and movable parts. Stretchable electronics offers materials with the ability to conform to soft and nonplanar composites while enabling movement of biological tissues. Therefore, this article elucidates very recently emerging advancements on self-healing composites, stretchable composites, and sensors. Future market disposition and application of self-healing composites are also presented.

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Damage detection and self-healing of carbon fiber polypropylene (CFPP)/carbon nanotube (CNT) nano-composite via addressable conducting network

Cited by 41 publications

References 38 publications

Self-Healing Polymer Nanocomposite Materials by Joule Effect

Self-Healing Polymer Nanocomposite Materials by Joule Effect

The service life increasing of bushings by electro-acoustic spraying

Novel trends in self-healable polymer nanocomposites

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