Water Absorption Characteristics of Bio-Resins and Bio-Composites Formed Using Natural Filler Powder Supplement and Waste Boron Oil


Erkul H., Yaşar A., Karaçor B.

10TH ISPEC INTERNATIONAL CONGRESS ON MODERN SCIENTIFIC RESEARCH, Madrid, İspanya, 18 - 25 Nisan 2026, ss.1078-1090, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Madrid
  • Basıldığı Ülke: İspanya
  • Sayfa Sayıları: ss.1078-1090
  • Çukurova Üniversitesi Adresli: Evet

Özet

Biocomposites, and, consequently, bioresins have recently emerged as environmentally friendly alternatives in the search for sustainable materials. In this study, carob powder, waste sawdust powder, cherry kernel powder, and hemp powder were used as fillers in epoxy resin at 10% by weight without added boron oil, and waste boron oil was also added at 10% by weight to create bioresins, which were then combined with the filler materials. The produced biocomposite samples were subjected to water absorption tests, and their absorption behaviour was examined at specific intervals. Biocomposite samples were produced using the open moulding method. Water absorption tests showed that adding boron oil to pure epoxy reduced water absorption by a factor of 28. Among the four natural powders combined with the filler material, waste sawdust reduced the epoxy's water absorption capacity the most. The sample reinforced with hemp powder filler exhibited the second-highest water absorption, second only to the pure epoxy sample. The sample reinforced with cherry kernel powder exhibited a 1.03-fold reduction in water absorption upon addition of boron oil, making it theleast affected material. Among the boron oil-added samples and filler-reinforced combinations, the waste sawdust sample showed the least water absorption, with a 0.36% weight increase based on dry weight. Overall, waste boron oil exhibited a hydrophobic effect in all samples, reducing water absorption, and, when combined with natural filler reinforcement, yielded products with lower water absorption than pure epoxy, demonstrating their potential for use in various sectors.