Research on dynamic mechanical properties of polymer colloid MAP materials

Flexible anti-explosion is a new approach to defend against the explosion damage of anti-improvised explosive devices in counter-terrorism operation. A polymer colloid materials is researched in order that the shock wave energy can be safely converted into kinetic energy of liquid. MAP is used as the base material, which is rapidly solvated to form colloid upon encountering water. The relations between gelation time with concentration and temperature are obtained, respectively. The stress-strain curves obtained of colloidal materials with different concentrations are obtained from SHPB experiments. The results show that the colloidal material has a strain rate dependent property. A constitutive model is established for the materials with strain and strain rate dependent property. The dynamic constitutive relations of colloidal materials with different concentrations are obtained. The colloidal material with more than 1.8% concentration could be chosen as a liquid material for anti-explosion.