Self-Healing Composites: A Path to Redefining Material Resilience-A Comprehensive Recent Review

Area of Science:

• Materials Science
• Polymer Science
• Mechanical Engineering

Background:

• Polymeric composites often suffer microcracks during operation, leading to potential catastrophic failure.
• Self-healing composites mimic biological systems to autonomously repair damage, enhancing material lifespan and safety.

Purpose of the Study:

• To review advancements in extrinsic self-healing composite methods.
• To highlight innovative techniques and practical applications in self-healing materials.

Main Methods:

• Overview of reservoir-based self-healing techniques (capsules, hollow fibers, microvascular networks).
• Discussion of thermoplastic-based self-healing approaches.
• Focus on recent innovative developments in extrinsic self-healing.

Main Results:

• Extrinsic self-healing methods offer versatile repair capabilities for various materials.
• Innovative approaches are continuously emerging in capsule, vascular, and thermoplastic systems.
• Promising practical applications are identified across different industries.

Conclusions:

• Self-healing composites represent a significant advancement in material durability and safety.
• Continued research into innovative extrinsic methods and applications is crucial.
• Addressing future challenges will unlock the full potential of self-healing materials.