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Scientists Attempt to Enhance the Lifecycle of Materials

By Parul Gupta

For more than 15 years, Jeff Moore, a lecturer of chemistry, Nancy Sottos a lecturer of materials science and engineering and Scott White, a lecturer of aerospace engineering has been associating in the Autonomous Materials Systems Group. Their work emphasis on generating synthetic substances that can react to the environment, recover from damage and self – destruct once their utility has come to an end.

The group of Beckman researchers are revolutionary in what is now considered as an expanding and dynamic field. Their study on self – healing polymers was initially presented in a journal more than a decade and a half ago. Before that, there had been just couple of papers published on the same subject of autonomous polymers. In the years since then, study in the field has exploded with numerous of papers published.

Now, in an altering perspective the scientists along with Beckman Postdoctoral Fellows Jason Patrick along with Maxwell Robb, review the state of the art autonomous polymers and define future directions for the same field.

Researchers work to improve the lifecycle of materials

“What we have attempted to capture for the very first time is a vision of polymers as multifunctional units that can manage their well – being,” says Moore. In this study, the scientists recognized five landscape transforming developments – self – healing, self – reporting, regeneration, self – protection, and regulated degradation. Much of their study revolves around microcapsules that are fluid – filled, small spheres that can be integrated into numerous material systems. The capsules contain a healing agent that is released automatically when disclosed to a particular environmental change like a physical damage or excessive temperature.

A core development in their self – healing work emphasis on repairing large – scale damage through the procedure of regeneration. “Ballistic impacts, drilling holes in plastic sheets and similar sorts of things were a massive lost and traditional healing process does not offer any way to deal with that problem at all,” says White. “The substances that would be utilized to heal that hole would just fall out under gravity.”

So white and his associates introduced a two – channel healing system that can rectify any damage occurring on a large-scale basis. This system releases a gel – like substance that fills the space and develops upon itself, placing the healing agents in place till they get harden. Their most recent study is related to how to deal with material systems when they have reached the end of their useful life.

The study involves preparing substances that can self – destruct when a particular environmental signal is triggered. The scientists consider that such triggers like high temperature, ultraviolet light, water, and more others may be useful one date to degrade obsolete devices quickly so that they can be recycled and reused in order to reduce electronic waste and boost sustainability


Filed Under: News

 

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