Self-Healing, High-Permittivity Silicone Dielectric Elastomer

Madsen, Frederikke Bahrt; Yu, Liyun; Skov, Anne Ladegaard

doi:10.1021/acsmacrolett.6b00662

Cited by 138 publications

(104 citation statements)

References 27 publications

(36 reference statements)

Supporting

Mentioning

100

Contrasting

Order By: Relevance

“…For SE, a full recovery is achieved after about 72 h at room temperature (Figure b), while for SE‐AT15%, healing for 48 h leads to a recovered fracture strain of 671% and a healing efficiency of 92% (Figure c). For SE‐AT20%, a higher healing efficiency of 92.5% is reached after 24 h (Figure d), which shows a higher and faster recovery compared with the reported self‐healing dielectric elastomers . The higher the AT content, the higher the self‐healing ability.…”

mentioning

confidence: 68%

“…For SE-AT20%, a higher healing efficiency of 92.5% is reached after 24 h (Figure 3d), which shows a higher and faster recovery compared with the reported self-healing dielectric elastomers. [30][31][32] The higher the AT content, the higher the selfhealing ability. The reason is attributed that the AT provides two kinds of noncovalent bonding including π-π stacking and the hydrogen bond as pictured in Figure S4, Supporting Information, which makes the material more easily healed.…”

Section: Self-healing Elastomersmentioning

confidence: 99%

“…Soon after, they [31] reported materials with high stretchability, high dielectric strength, and self-healing ability through embedding dual-strength dynamic metal-ligand coordination bonds within the soft polydimethylsiloxane backbone. Skov et al [32] presented a self-healing dielectric elastomer that consisted of an interpenetrating polymer network of silicone elastomer and ionic silicone species that were cross-linked through proton exchange between amines and acids.The above elastomers focused on silicone elastomer and relied on the incorporation of dynamic noncovalent bonds into dielectric silicone elastomer to achieve self-healing dielectric property. So the development for other elastomers that simultaneously exhibit dielectric, electro-mechanical property, and self-healing behavior is still an unmet challenge.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Liu

Yan

Zhang

2018

Macromol. Rapid Commun.

View full text Add to dashboard Cite

A new design strategy to produce a supramolecular elastomer with self‐healing and dielectric properties by synthesizing an aniline tetramer (AT)‐functionalized supramolecular elastomer (SE‐AT) is demonstrated. The termination of AT in the supramolecular system not only shortens linear amide molecular chain to decrease glass transition temperature but also destroys the crystallization to achieve amorphous structure. The SE‐AT provides two kinds of noncovalent bonding including π–π stacking and the hydrogen bond, which makes the material more easily healed. The SE‐AT20% can heal mechanical properties within 24 h at room temperature without any external stimulus. The dielectric constant shows a continuous increase overall with increasing AT content. The material exhibits good electro‐mechanical properties, which is attributed to a simultaneous increase in dielectric constant and decrease in modulus. The maximum actuated strain significantly increases with the increasing AT content and the SE‐AT20% reaches 10% at 1 V µm−1. Moreover, SE‐AT exhibits the ability to regain actuated strain on the location of the mechanical damage after self‐healing.

show abstract

mentioning

confidence: 68%

Section: Self-healing Elastomersmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Liu

Yan

Zhang

2018

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

“…sensing [1] and healing [2][3][4] are rarely found in engineering structures. [5] Hence, the development of novel damage-sensing and healing engineering materials will be critical to the next generation of "smart" engineering structures.…”

Section: Doi: 101002/macp201900168mentioning

confidence: 99%

Bio‐Inspired Multiple Cycle Healing and Damage Sensing in Elastomer–Magnet Nanocomposites

Panigrahi

Zarek

Sharma

et al. 2019

Macro Chemistry & Physics

View full text Add to dashboard Cite

Damage‐sensing and healing are biological functions which are urgently required in structural health monitoring and remediation of engineering structures. The development of a bio‐inspired multiple cycle damage sensing and triggered healing magnet–polymer nanocomposite (Magpol) is reported. Magpol is comprised of an acrylonitrile butadiene co‐polymer (NBR) matrix and a magnetic nanoparticle (MNP) filler. Magpol nanocomposites in a range of MNP filler concentrations are studied. NBR is selected as the matrix due to its extensive use in industrial coatings, for example, in the automotive industry. Mn‐Zn ferrite MNP is chosen due to its appropriate Curie temperature and good specific absorption rate. Exposure of damaged Magpol to a remote external alternating magnetic field results in MNP heating. The MNP heats the surrounding NBR matrix, resulting in triggered healing. Fractured Magpol samples are successfully healed over several cycles. Incorporation of rhodamine b mechano‐chromophore in Magpol results in multicycle damage sensing by photo‐luminescent absorption. Thus, the developed Magpol is attractive for structural health monitoring and remediation application.

show abstract

“…The damaged site experienced no dielectric breakdown, even with application of an 11-kV charge on the electrodes. This research was followed up by Madsen et al, who presented a whole family of self-healing, stretchable dielectric silicones for use in DEAs (Madsen et al, 2016b).…”

Section: Self-healing Deasmentioning

confidence: 99%

Self-Healing and Damage Resilience for Soft Robotics: A Review

Bilodeau

Kramer

2017

Front. Robot. AI

View full text Add to dashboard Cite

Advances in soft robotics will be crucial to the next generation of robot-human interfaces. Soft material systems embed safety at the material level, providing additional safeguards that will expedite their placement alongside humans and other biological systems. However, in order to function in unpredictable, uncontrolled environments alongside biological systems, soft robotic systems should be as robust in their ability to recover from damage as their biological counterparts. There exists a great deal of work on self-healing materials, particularly polymeric and elastomeric materials that can self-heal through a wide variety of tools and techniques. Fortunately, most emerging soft robotic systems are constructed from polymeric or elastomeric materials, so this work can be of immediate benefit to the soft robotics community. Though the field of soft robotics is still nascent as a whole, self-healing and damage resilient systems are beginning to be incorporated into three key support pillars that are enabling the future of soft robotics: actuators, structures, and sensors. This article reviews the state-of-the-art in damage resilience and self-healing materials and devices as applied to these three pillars. This review also discusses future applications for soft robots that incorporate self-healing capabilities.

show abstract

Self-Healing, High-Permittivity Silicone Dielectric Elastomer

Cited by 138 publications

References 27 publications

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Bio‐Inspired Multiple Cycle Healing and Damage Sensing in Elastomer–Magnet Nanocomposites

Self-Healing and Damage Resilience for Soft Robotics: A Review

Contact Info

Product

Resources

About