APPROACH TO THE MECHANICS DAMAGE AT CHLORINATED POLY (VINYL CHLORIDE) UNDER THE EFFECT OF TEMPERATURE

In the industrial sector, for several uses, the choice of materials is a judicious preoccupation, among the materials used for the transport of water, polymer piping due to its economic gain on metallic materials, as well as many qualities such as corrosion resistance, pie resistance, better thermal insulation which makes CPVC the most suitable material for transporting hot water and other fluids. For a better economic return and for safety reasons, it is necessary to foresee the moment of the rupture. CPVC is an amorphous thermoplastic polymer whose behavior is very dependent on temperature, under these environmental conditions; it goes from the fragile class to the ductile, then to the glassy state. During operation, the CPVC structure is sometimes subjected to accidental damage resulting in a reduction of the residual resistance [1], or even a complete rupture of the structure, under the effect of temperature and other conditions such as the pressure in the pipes. Hencea the need to characterize the behavior of the CPVC subjected to a tensile test according to ASTM D638 [2, 3] under the influence of temperature [4] (Figure 1). To avoid sudden failure to this material, we applied the approach of damage to CPVC. Moreover, by use of this study results we were able to determine the different stage of use of CPVC material.