Fabrication of composite polymers with micron size copper and graphite additives in masked stereolithography

Kaya A. C., Sandık M. H., Aşçıoğlu Temiztaş B.

JOURNAL OF MATERIALS RESEARCH, cilt.1, sa.1, ss.1-14, 2024 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1 Sayı: 1
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1557/s43578-024-01483-6
  • Dergi Adı: JOURNAL OF MATERIALS RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1-14
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Masked stereolithography makes the fabrication of complex parts more effortless and less expensive and enables high surface quality. We fabricated pure resin, flexible resin, resin-6.1-wt% graphite, and resin with Cu concentrations spanning from 5.5 to 15.5 wt% at different printing conditions. The structure was investigated with electron and light microscopes, and tensile testing of the printed sample was carried out. Resin temperature, post-curing temperature, and time are the dominating factors determining the strength of printed samples. Resin-Cu composite depicted a strengthening effect at 10 °C degrees resin and post-curing temperatures, but no strengthening effect was found for flexible resin-Cu composite at 20 °C degrees. Cu particles agglomerated, forming a density-graded composite; however, graphite particles distributed more homogenously in the parts. Increasing the graphite gradually reduces the composite strength. As a result, the mechanical properties of the composites are dominated by the interaction between the fillers and the matrix.