Al Ichlas Imran, Januar Parlaungan Siregar, Tezara Cionita, Deni Fajar Fitriyana, Samsudin Anis, Rozanna Dewi, Thomas Junaedi, Etanto Heiliano Wijayanto, Wisnu Prayogo
The incorporation of wood dust and crumb rubber waste as filler in polymer matrix composite still requires in-depth evaluation of mechanical properties because they have different characteristics. This study evaluates the tensile, flexural, and hardness properties of epoxy composites reinforced with various fractions of wood dust and crumb rubber (5, 10, and 15%). The results showed that the composite with 5% crumb rubber produced the highest tensile strength of 15.52 MPa (CR5), while the highest flexural strength was 30.46 MPa (CR10), and the highest hardness was 75.9 HRC (CR15), indicating superior performance for CR fillers. The observations of the fracture surface showed that increasing the fraction of wood dust contributed to lowering the mechanical performance due to the relatively large distribution of voids and agglomeration. This finding confirms the importance of filler type and fraction selection on composite performance. Future research is recommended to explore filler surface modification and hybrid combinations to improve dispersion and bonding between phases in composites.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Halu Oleo, Kendari, 93232, Indonesia; Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Pahang, Pekan, 26600, Malaysia; Centre for Automotive Engineering, Universiti Malaysia Pahang Al-Sultan Abdullah (UMPSA), Pahang, Pekan, 26600, Malaysia; Faculty of Engineering, Built Environment & Information Technology, SEGi University, Selangor, 47810, Malaysia; Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang, 50229, Indonesia; Faculty of Engineering, Universitas Malikussaleh, Aceh, Lhokseumawe, 24353, Indonesia; Department of Mechanical Engineering, Faculty of Engineering, Universitas Sains Indonesia, Bekasi, 11650, Indonesia; Department of Mechanical Engineering, Faculty of Engineering, Universitas Medan Area, Medan, 20223, Indonesia; Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan, 320314, Taiwan
