Why Rubber Tears from Within: The Tug-of-War Inside a Filled Elastomer
Rubber filled with nanoparticles is like a tug-of-war: the polymer matrix pulls one way, the nanoparticle network the other. As long as the forces balance, the material holds. But let one side give a sharp yank, and the fabric tears. That's exactly the kind of jolt scientists saw in a computer model when they stretched rubber containing clusters of nanoparticles.