THE SELF HEALING MATERIAL
Self-healing materials are artificially or synthetically-created substances that have the built-in ability to automatically repair damage to themselves without any external diagnosis of the problem or human intervention.
Electronic materials have been a major stumbling block for the flexible electronics because existing materials do not function well after breaking and healing. A new electronic material created by an international team, however, can heal all its functions automatically even after breaking multiple times. This material could improve the durability of wearable electronics.
The major limitations of existing materials are that either they are not much flexible or strong enough when it comes to bear some stretching weight, may it be regarding Wearable materials, Sports material or Electrical materials. The materials which are flexible, if broken either they will stay in the broken state or they will get fixed but will not work appropriately. However, a team from Penn State have created a particular material having property to self heal and can be used up in Electronic Materials even after multiple breaks.
“Wearable and bendable electronics are subject to mechanical deformation over time, which could destroy or break them,” said Qing Wang, Professor of materials science and engineering, Penn State. “We wanted to find an electronic material that would repair itself to restore all of its functionality, and do so after multiple breaks.”
Properties of used Nano-material for Self Healing Objective: The nano-composite material they came up with was mechanically strong, resistant against electronic surges, thermal conductivity and whilst packing insulating properties. Despite being cut into half, the halves were reconnected all together at a high temperature. The thin strip of material could also hold up to 200 grams of weight after recovering.
Penn State team used Boron-Nitrate Nano-sheets, these have high tolerance against humidity i.e., they are unaffected by moisture. “This is the first time that a self-heal-able material has been created that can restore multiple properties over multiple breaks, and we see this being useful across many applications,” said Qing Wang. “We need conducting elements in circuits but we also need insulation and protection for microelectronics.”