Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Dokuz Eylül Üniversitesi, Fen Bilimleri Enstitüsü, Türkiye
Tezin Onay Tarihi: 2024
Tezin Dili: İngilizce
Öğrenci: DİLEK BURCU YILDIZ
Danışman: Serdar Yıldırım
Özet:
Biobased resins, derived mainly from soybean oil, represent an eco-friendly option in the realm of 3D printing. Despite their environmentally conscious nature, these resins are often overshadowed by their mechanically superior counterpart, epoxy resins. To address the inherent limitations of biobased resins, a potential solution lies in nanoparticle reinforcement. The addition of nanoparticles to the resin aims to enhance mechanical properties, yet challenges arise due to their tendency to aggregate, leading to suboptimal outcomes.
This thesis focuses on the incorporation of silica (SiO2) nanoparticles into biobased resin, coupled with a silanization process to mitigate aggregation. The ensuing investigation delves into the transformation degrees and alterations in mechanical properties of the resultant samples. SiO2 nanoparticles, synthesized through the sol-gel method, underwent a silanization process before being blended with biobased resin in varying compositions. Throughout the sample preparation stages, XRD, SEM, FT-IR, three-point bending, and tensile test characterizations were meticulously conducted.
The sample containing 1.5 percent silanated nanoparticles and sample containing 5 percent silanated nanoparticles samples exhibited notable increases in the conversion degree 8.5 percent and 9.1 percent, respectively. Among the bending strength values, the sample containing 1.5 percent silanated nanoparticles demonstrated the highest at 91.68 MPa, while the SEC0.5 sample led in elastic modulus values with 3.01 GPa. The comprehensive characterizations unveiled the positive impact of both nanoparticle additives and silanization on mechanical properties and transformation degrees. Consequently, this study elucidates those biobased resins, when fortified with silanized SiO2 nanoparticle additives, can be harnessed without compromising on performance.