An Overview of Self-Healable Polymers and Recent Advances in the Field

Area of Science:

• Polymer Science and Material Engineering
• Biomimetic Materials

Background:

• The demand for high-performance, durable, and sustainable materials drives innovation in polymer science.
• Self-healing polymers are engineered to autonomously repair damage, inspired by natural biological healing processes.

Purpose of the Study:

• To provide a comprehensive overview of self-healing polymers, including their classification, characterization, and applications.
• To review recent advancements and limitations in self-healing polymer technology over the past two decades.

Main Methods:

• Literature review encompassing industrial and scholarly research on self-healing polymers.
• Classification of self-healing polymers based on healing mechanisms (capsular-based, vascular, intrinsic).
• Analysis of characterization techniques (mechanical, thermal, electrical) and application domains (coatings, composites, electronics).

Main Results:

• Overview of various self-healing polymer types and their underlying mechanisms.
• Discussion of characterization methods and diverse applications in coatings, composites, and electronics.
• Summary of recent developments, modeling approaches, and identified limitations in fabrication and performance.

Conclusions:

• Self-healing polymers are crucial for achieving economically and environmentally sustainable material solutions.
• The field has advanced significantly, offering promising solutions for extending material lifespan, especially in hard-to-access areas.
• Further research is needed to overcome current limitations in fabrication, manufacturing, and performance for widespread adoption.