Synergistic effects of graphene nanoplatelets in thermally conductive synthetic graphite filled polypropylene composite

• DOI: 10.1002/pc.24643
• Publication Date: 2018-01-18T04:52:47Z
• Authors: Lutfiye Altay; Metehan Atagur; Kutlay Sever; Ibrahim Sen; Tugce Uysalman; Yoldas Seki; Mehmet Sarikanat
• Keywords: Polypropylene; Flexural modulus; Thermal Stability

Polypropylene (PP) was filled with synthetic graphite (SG) and graphene nanoplatelets (G) at different weight fractions. Composites were prepared by the melt mixing process using a co‐rotating twin screw extruder. Mechanical tests carried out to determine tensile flexural properties of composites. Dynamic Analysis composites performed their thermo‐mechanical properties, such as storage modulus loss modulus. Scanning Electron Microscopy used observe fracture surfaces after tests. The effect SG G on thermal melting crystallization temperature, conductivity, stability, coefficient expansion PP investigated. Tensile strength increased addition 10 wt% SG. highest conductivity achieved in this study 50 3 loading 4.6 W/mK. POLYM. COMPOS., 40:277–287, 2019. © 2018 Society Plastics Engineers