Self-healing polymers and composites for extreme environments

Heo, Yunseon; Malakooti, Mohammad H.; Sodano, Henry A.

doi:10.1039/c6ta06213j

Cited by 72 publications

(45 citation statements)

References 37 publications

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“…However, there are some challenges for the self-healing function based DA reaction, for example, the number of groups for DA reaction is limited, as well as low application temperature (120 °C) during DA reaction is one of the major demerits. [86,117] Therefore, further investigation about DA reaction is critically important to optimize and achieve better self-healing surface materials.…”

Section: Self-healing Based On Reversible Covalent Bondsmentioning

confidence: 99%

Flourishing Self‐Healing Surface Materials: Recent Progresses and Challenges

Tie

Panhwar

Zhao

2020

Adv Materials Inter

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In the past few decades, the self‐healing surface materials with durable mechanical, functional, and structural properties have attracted enormous research interests, which exhibit great potential in energy conversion devices, sensors, electronic skins, superhydrophobic fabrics, medical/biological hydrogel, and a protective coating. Despite the remarkable progresses achieved in the self‐healing surface, the systematic and overall reviews that focus on self‐healing surface materials are still lacking and in urgent need. Herein, the recent advances in the development of self‐healing surface materials are summarized. The surface damage forms that composed of cracks, scratches, punctures, and surface wear, are systematically reviewed. The self‐healing mechanism and methods at interface are then introduced to briefly explain the basic design principle. The recent developments of functional surfaces including superhydrophobic, oleophobic, antifogging, anti‐icing, antibiofouling, and anticorrosion surfaces with self‐healing functions are further discussed. Finally, the contemporary challenges, and the future perspectives that motivate are proposed to create more innovative self‐healing materials for diverse fields.

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Section: Self-healing Based On Reversible Covalent Bondsmentioning

confidence: 99%

Flourishing Self‐Healing Surface Materials: Recent Progresses and Challenges

Tie

Panhwar

Zhao

2020

Adv Materials Inter

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“…Thermal stability at high temperatures is as important as low-temperature cleavage for self-healing polymers and composites. Heo et al [29] reported that a self-healing polymer based on the DA reaction and its composite achieved a 94% and 69% healing efficiency, respectively, while the polymer was stable at 240 • C. Effective thermal stability with mechanical strength that is comparable to other engineering polymers and structural composites will be beneficial for the future of self-healing composite materials.…”

Section: New Materials and Approachesmentioning

confidence: 99%

Prospects and Future Directions of Self-Healing Fiber-Reinforced Composite Materials

Lee

2020

Polymers

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In this paper, the anticipated challenges and future applications of self-healing composite materials are outlined. The progress made, from the classical literature to the most recent approaches, is summarized as follows: general history of current self-healing engineering materials, self-healing of structural composite materials, and self-healing under extreme conditions. Finally, the next stage of research on self-healing composites is discussed.

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“…This can be achieved by changing the chemical structure of the DA groups. A recent example involves the use of anthracene and maleimide groups [52] (Figure 11). The resulting polyurethanes (PU) show self-healing behavior by pure DA reaction for mechanically cleaved adducts.…”

Section: Nanocomposites -Recent Evolutionsmentioning

confidence: 99%

Thermoreversible Polymeric Nanocomposites

Bose¹,

Picchioni²,

Muljana³

2019

Nanocomposites - Recent Evolutions

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Polymeric nanocomposites are widely used in applications such as structural materials, electronics, energy, and biomedical as they synergistically combine the desired properties of the filler and the polymer. The emergent properties can be designed and tuned based not only on the choice of filler and polymer but also on the type of bond and interface created between the two components. When the bond between the two is covalent, the nanocomposites have superior mechanical characteristics. When this covalent bond is reversible, a combination of high impact resistance and high tensile strength is achieved. A well-known approach to achieve these reversible covalent bonds is via the Diels-Alder reaction between a diene and a dienophile. At elevated temperatures, the retro Diels-Alder reaction is dominant resulting in bond cleavage. This chapter reviews the different strategies involving Diels-Alder reactions at the polymer-filler interface. Various fillers have been researched including silica, carbon nanotubes, and graphene, which impart different mechanical and conductive properties to the nanocomposite. A variety of polymer matrices have been reported by various researchers and are summarized here. The choice of diene and dienophile influences the rate of reversible reaction and thus the final properties as will be discussed.

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Self-healing polymers and composites for extreme environments

Abstract: The first self-healing polymers and fiber reinforced composites with temperature stability beyond 240 °C and high healing efficiencies are developed.

Cited by 72 publications

References 37 publications

Flourishing Self‐Healing Surface Materials: Recent Progresses and Challenges

Flourishing Self‐Healing Surface Materials: Recent Progresses and Challenges

Prospects and Future Directions of Self-Healing Fiber-Reinforced Composite Materials

Thermoreversible Polymeric Nanocomposites

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