Tracing the sol-gel transformation by dynamic torsional vibration method

This work is an analysis of mechanical properties that aims to describe the whole process of sol-gel transformation of organic/inorganic hybrid materials by the DTVM, which had been developed in our lab and used to investigate the cure behavior of the epoxy resin curing system. The isothermal transformation process with different temperatures was monitored in situ by the DTVM, and the non-equilibrium thermodynamic fluctuation theory was used to predict the sol-gel transformation behavior. Good agreement between the experimental results and the theoretical model was generally found.