The Effect of Explosive Treatment on the Structure and Thermomechanical Properties of Filled Polytetrafluoroethylene

Abstract

The effect of explosive treatment with variation in the shock pulse configuration and in the pressure within the shock front on the structure and thermomechanical properties of a composite of polytetrafluoroethylene with 30% polyarylate was investigated.

Effect of Explosive Processing on the Structure and Properties of Polyarylate

“…Equal-density flat monolithic samples 3 mm thick, obtained by static pressing with a pressure of 0.15 GPa and explosive pressing with a sliding shock wave of 2.8 GPa were researched. The loading scheme and pressure of EP were chosen on the basis of previous studies [11][12][13][14], which allowed to exclude the course of destructive processes under loading and to obtain monolithic compacts.…”

“…To achieve a new level of product properties, it is possible to use various technological methods for activating hard-toprocess polymers (chemical modification, radiation, ultraviolet and other high-energy effects) [5][6][7][8][9][10]. A promising way of obtaining products from powders of hard-to-process polymers is explosive processing (EP) [10][11][12][13][14]. The explosive impact simultaneously implements high pressure, loading rate and temperature, which creates favorable conditions for structural transformations and largely determines the properties of the resulting materials [13][14][15][16][17][18][19][20].…”

“…A promising way of obtaining products from powders of hard-to-process polymers is explosive processing (EP) [10][11][12][13][14]. The explosive impact simultaneously implements high pressure, loading rate and temperature, which creates favorable conditions for structural transformations and largely determines the properties of the resulting materials [13][14][15][16][17][18][19][20]. In this work we present the results of the study of the effect of the method of obtaining compacts on changes in the structure and properties of polyarylate.…”