Self-healing composites represent an innovative breakthrough in materials technology. These remarkable materials have the unique ability to repair themselves when damaged, and their applications in the mobility sector are gaining traction. The automotive industry is changing so rapidly with the introduction of electrification, and the sector needs new materials in order to implement its ambitious goals around sustainability. SoundBounce is one such material, helping vehicle manufacturers reduce noise while taking care of the environment. Self-healing composites are another approach to improving the impact of cars and transportation systems on our communities and eco-systems. 

In this article, we'll delve into the world of self-healing composites and explore how they are poised to revolutionise the durability and reliability of the automotive industry.

What are self-healing composites?

Self-healing composites are advanced materials engineered to autonomously repair any damage they sustain. Their origins can be traced back to the aerospace industry, where the need for lightweight yet durable materials is paramount. These materials are now finding their way into the automotive industry, and for good reason.

How do self-healing composites work?

Self-healing composites leverage microcapsules or fibers embedded within the material. These microcapsules or fibers house a specialised healing agent, which is released upon material damage. This agent reacts with the affected area, facilitating seamless repairs, and restores the material to its original strength.

What are the key benefits of self-healing composites?

One of the standout advantages of self-healing composites is their innate ability to mend themselves without external intervention. This means vehicles constructed with these materials can continue functioning even after experiencing damage, eliminating the need for costly repairs or extended downtime.

In the realm of mobility technology, self-healing composites can lead to substantial reductions in maintenance costs and downtime. According to a study conducted by the Society of Automotive Engineers (SAE), vehicles incorporating self-healing composites experienced up to a 30% reduction in maintenance expenditures. This is a game-changer for fleet operators and individual vehicle owners alike.

Beyond cost savings, self-healing composites contribute to a more sustainable mobility sector. By reducing the frequency of repairs and the associated environmental footprint, these materials bolster the overall efficiency and productivity of vehicles while promoting eco-conscious practices.

What companies are using self-healing composites?

Several automotive manufacturers have already begun integrating self-healing composites into their vehicles. Toyota, for instance, introduced self-healing paint technology in its Lexus models in 2018. This paint can repair scratches and minor damages, preserving the vehicle's appearance and value.

Similarly, in the construction industry, several companies are working on self-healing concrete. Basilisk, a Dutch biotech company, has developed self-healing concrete that uses microorganisms to produce limestone, which fills in cracks and prevents leakage. The company has also developed self-healing mortar that can plug cracks in existing buildings. The rise in demand for less maintenance of buildings and infrastructure is driving the demand for self-healing concrete which offers feasible solutions to enhance the lifespan of buildings and structures, thereby gaining traction in the construction market.

In conclusion, self-healing composites hold immense promise for the mobility sector, with concrete evidence from the automotive industry supporting their potential. As these materials continue to evolve and undergo refinements, their widespread adoption in various applications is imminent. Embracing the potential of self-healing composites can revolutionise the way we perceive vehicle durability and reliability, ushering in a new era of sustainable and efficient mobility solutions.