The effect of temperature on mechanical properties of polypropylene

Abstract

The significant diversity exists among the mechanical properties of PP polymers in range from high temperature to low temperature. With the increasing application of PP polymers in the automobile industry, the mechanical properties of PP polymers which depending on temperature are extensively studied by a growing number of scholars. The presented study concentrates on determining the mechanical properties depending on temperature by the use of mathematical method. With the focus on automotive applications, the elasticity constants values have been determined in the range from −30 up to 110 ℃ using uniaxial tensile. Experimental results indicate that the elasticity present a dramatic decrease with the increase in temperature, Based on the experimental investigation and the theoretical research by domestic and foreign scholars. The properties like the elasticity are mathematically described depending on the temperature in different mathematical methods and the influence of temperature on elastic modulus was summarized.