The effect of strain rate and temperature on the mechanical properties of polycarbonate composites

• Published in: Materials today : proceedings Vol. 45; pp. 4211 - 4215
• Main Authors: Krausz, Tamas, serban, Dan Andrei, Negru, Radu Marcel, Radu, Adrian George, Marsavina, Liviu
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2021
• Subjects: Composite; Makrolon; Strain rate; Ultimate tensile strength; Young’s modulus; Young’s modulus; Ultimate tensile strength; Composite; Makrolon; Strain rate
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.12.121

Polycarbonate thermoplastic materials have found their usage in many automotive interior type products (e.g. cluster instruments, Head-Up displays etc.), due to their visual aspects offered to the products and to the good mechanical properties possessed, especially in forms of short fiber reinforced composites. This paper presents the tensile behavior of two grades of polycarbonate composites Makrolon 9415 – polycarbonate with 10% glass fiber and Makrolon 8035 – polycarbonate with 30% glass fiber, compared to the neat unreinforced polycarbonate Makrolon 2405, at different strain rates and temperature conditions. A slight increase of elastic modulus and tensile strength with increasing loading rate was observed, while the tensile strength decreased considerably with temperature increase. The variations of the elastic modulus and of the ultimate tensile strength with loading rate and temperature of the Makrolon polycarbonate family, and its subsequent material grades, would be useful for mechanical design engineers in the process of selecting the most suitable Makrolon type for their final end applications.