# Development of a Self-Healing Gel with Self-Healing Kinetics That Can Be Controlled by Heat

## TL;DR

A self-healing gel is developed that can heal itself at room temperature or faster when heated, making it useful for different practical applications.

## Contribution

The novel contribution is a self-healing gel with controllable healing speed through temperature regulation.

## Key findings

- The gel self-heals at room temperature and heals faster when heated.
- The material's healing rate can be adjusted to meet different practical needs.

## Abstract

A self-healing gel with self-healing kinetics that can be regulated by heat is developed. The gel is composed of a polymer having benzophenone (BP) substituents, which are cross-linked with a main alkyl chain via ester bonds, titanium chloride, and zinc. This gel material shows a self-healing property at room temperature. Also, its self-healing behavior can be accelerated by heating the gel. This gel having self-healing kinetics that can be regulated by heat is favorable for practical use. When we want to use a self-healing property as a stop-gap measure, a rapid self-healing property is demanded. On the other hand, when we want materials repaired beautifully or decomposed surfaces need to be attached beautifully, a slow self-healing property is favorable. These opposite demands can be answered by the gel with self-healing kinetics that can be regulated by heat.