Self-healing glass brings an end to broken screens

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Cracked windscreens and phone screens may soon be a thing of the past. Japanese researchers have just developed a type of glass that can heal itself from cracks and breaks. Most screens are made from high molecular weight polymers, which are robust enough to withstand everyday use, but are difficult to repair once cracked. This is because the polymer chains are too heavily entangled to be easily rejoined once broken, and require temperatures of around 120 degrees celsius or higher in order to reorganise their cross-linked strands. Now, a group of researchers, led by Professor Takuzo Aida from the University of Tokyo have found a way to make glass that can be sealed at much lower temperatures.

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