Genuine polymer nanocomposites with anticipated mechanical performance

The reason that the predicted mechanical properties of polymer nanocomposites often don't match what is observed in materials made by blending the matrix and reinforcement is primarily because the nano-sized material is not spread out well enough. Achieving good dispersion in polymer nanocomposites faces fundamental thermodynamic hurdles. Because of this, it is best to skip the dispersion step entirely when manufacturing these materials. New techniques for making genuine polymer nanocomposites without dispersion operate on the principle of “creating instead of adding.” This method entails commencing the manufacturing process with one component while producing the second component concurrently. The cold drawing process of a polymer blend transforms the minor component into uniformly dispersed nanofibrils, yielding a nanofibrillar polymer-polymer composite as the final material. The selective extraction of the matrix component from the cold drawn blend leads to the formation of neat nanofibrils. Post-compression molding, these nanofibrils are converted into nanofibrillar single polymer composites. Both categories are classified as genuine nanocomposites. To significantly boost the mechanical strength of polymer nanocomposites potentially increasing tensile strength and modulus by 300–400 %, or even up to ten times more than with older techniques two main elements are crucial: bypassing the dispersion step and ensuring the nano-sized reinforcement is optimally distributed throughout the polymer.