# Candidates Enhanced Ballistic Performance of Polyurethane Composites Reinforced with Graphite-Derived Graphene > Pranowo S. URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_105036049154 Jurnal / Konferensi: International Journal of Design and Nature and Ecodynamics Tahun terbit: 2026 DOI: https://doi.org/10.18280/ijdne.210226 ISSN: 17557437 Kuartil SJR: Q3 Citations: 0 ## Authors - Pranowo S. ## Abstract Graphene oxide (GO) was synthesized from commercial graphite using a modified Hummers method and subsequently reduced with Zn powder to obtain reduced graphene oxide (rGO).The rGO was incorporated into a polyurethane matrix to fabricate lightweight, ballistic-resistant composites.Structural characterization by Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscopy-Energy-Dispersive X-ray Spectroscopy (SEM-EDX) confirmed the successful reduction of GO, evidenced by the restoration of aromatic C=C bonding, a decrease in interlayer spacing, and sheet-like morphology.Mechanical testing revealed that increasing graphene content significantly enhanced the compressive and tensile strength of the composites.Ballistic testing using a 0.22-caliber firearm demonstrated that polyurethane composites containing 1.0 wt% rGO effectively resisted projectile penetration, whereas neat polyurethane and composites with lower graphene content were fully penetrated.These results demonstrate that graphite-derived graphene can substantially improve the mechanical integrity and ballistic resistance of polyurethane composites, highlighting its potential as a candidate material for lightweight personal protection systems. ## Keywords - Graphene - Materials science - Polyurethane - Composite material - Graphite - Oxide - Graphite oxide - Fourier transform infrared spectroscopy - Ultimate tensile strength - Scanning electron microscope - Compressive strength - Graphene oxide paper - Projectile - Composite number - Graphene foam - Ballistic impact - Characterization (materials science) --- Sumber: Discover Unhas — RIMS Universitas Hasanuddin. Saat mengutip, gunakan DOI bila tersedia atau URL kanonis di atas.