Self-healing materials are smart materials that can automatically repair damage to themselves without human intervention. They are inspired by biological systems (like human skin) and are used to improve the durability, safety, and longevity of products. 🔍 Types of Self-Healing Materials 1. Polymer-Based Self-Healing How it works : Incorporates microcapsules or vascular networks filled with healing agents (like resins). Example : A scratch on a polymer triggers the release of healing agents that harden and fill the gap. Used in : Coatings, electronics, packaging. 2. Concrete with Self-Healing Properties Types : Bacteria-based : Contains dormant bacteria that produce limestone when exposed to water. Capsule-based : Capsules break upon cracking and release sealing agents. Used in : Infrastructure like bridges, tunnels, and buildings. 3. Metals and Alloys Mechanism : Shape memory alloys can "remember" and return to a predefined shape when hea...