Analisis Komparatif Sifat Tarik dan Impak Komposit Resin Epoxy yang Diperkuat dengan Serbuk Cangkang Kerang Simping (Amusium pleuronectes), Kerang Dara (Anadara Granosa), dan Kerang Hijau (Perna Viridis)

Afrizal Eka Nanda (Universitas PGRI Semarang)
Muhammad Budi Haryono (Universitas PGRI Semarang)
Muhammad Faesal Febriandyono (Universitas PGRI Semarang)

IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Vol 5 No 2 (2026): Agustus

Shellfish waste is an abundant biomaterial in Indonesia's coastal areas, but its use as a value-added material remains limited. Its high calcium carbonate (CaCO₃) content makes it a potential particulate filler for epoxy resin-based composites. This study aims to analyze the effect of different shell powder types, namely Asian moon scallop (Amusium pleuronectes), blood cockle (Anadara granosa), and green mussel (Perna viridis), on the mechanical properties of epoxy resin composites. The composites were fabricated by mold casting using 100-mesh particles. Mechanical testing included tensile tests per ASTM D638 and impact tests per ISO 179. The results showed that shell powder type affected the mechanical properties of the composites. The composite containing green mussel (Perna viridis) shell powder exhibited the highest tensile and impact strengths compared with the other types. These results show that shellfish waste has potential as an environmentally friendly natural filler to improve composite mechanical properties, support sustainable material development, and increase the added value of fishery waste.