Self-healing materials are artificial or synthetically created substances that have the built-in ability to automatically repair damages to themselves without any external diagnosis of the problem or human intervention. Generally, materials will degrade over time due to fatigue, environmental conditions, or damage incurred during operation.

Self-healing materials are capable of responding to mechanical damage by initiating a self-repair mechanism, similar to a biological entity. These materials are classified into two broad categories, both of which are reviewed.

2023年7月6日 · Self-healing materials come in four main kinds: materials with embedded "healing agents," like those developed by Professor White; materials with a kind of internal "vascular" circulation analogous to blood; shape-memory materials; and reversible polymers. Let's look at each of these in turn.

2023年7月6日 · Self-healing materials can be divided into two categories: extrinsic and intrinsic. Extrinsic self-healing materials incorporate microcapsules, vascular networks, or other agents that can be activated upon damage to repair the material.

2025年1月29日 · These materials, doped with activated polypyrrole nanotubes (acPPyNTs), utilize hydrogen bonds to achieve self-healing at temperatures above 75°C. With a specific capacitance of 316.86 mF cm⁻², tensile strength of 0.9 MPa, and elasticity of 1300%, they excel in flexible supercapacitor applications and high-strength self-healable ...

Self-healing polymeric materials, engineered to autonomously self-restore damages from external stimuli, are at the forefront of sustainable materials research. Their ability to maintain product quality and functionality and prolong product life ...

2020年6月5日 · Self-healing is achieved by incorporating enhanced van der Waals interactions, or encapsulating nanocapsules or microcapsules containing reactive liquids to heal a wound, or by mimicking...

In this review, we provide an overview of recent advances in materials with self-healing properties, encompassing polymers, ceramics, metals, and composites. We outline future research directions and potential applications of self-healing materials (SHMs) in diverse fields.

Self-healing materials (materials with self-healing abilities) are a category of smart composite materials that can automatically repair their damage and restore their original functionality and properties after being damaged [4].

2024年6月7日 · Self-healing materials are already used in many implanted devices, wound dressings, and drug delivery systems. Some of the most exciting research today involves hydrogels, a large umbrella of water-based, biocompatible materials that can be engineered to have self-healing properties.