Date of Completion
2023
Document Type
Thesis
Degree Name
Bachelor of Science in Biochemistry
Keywords
Bioplastic, Chitosan, Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimetry, Polyether Ether Ketone
Abstract
Successful extraction of chitosan from Magallana billineata shells was accomplished by using a series of procedures, including demineralization, deproteinization, and deacetylation. The extracted chitosan had a DA of 81.75%, conforming to similar studies on crustacean-derived chitosan. The extrusion process for the bioplastic mixture was effectively carried out using a custom-built in-house single-screw extruder. A bioplastic was formed through the combination of epoxy resin, a hardener, and chitosan, resulting in a blend of materials. The structure of the epoxy and chitosan bioplastic was confirmed using FT-IR spectroscopy which showed a strong peak around 1400 nm cm-1 indicating the existence of ß-(1-4) glycosidic bonds which links the deacetylated and acetylated monomer of the chitosan and other expected peaks were also found. The tensile test result has high elasticity against to 2 kg. The water absorption showed and increased percentage of absorption as the immersion time increases. The DSC yielded Tg = 99.13°C and Tm = 374.18°C. The chitosan-based filament bears a striking resemblance on its DSC thermogram to polyether ether ketone (PEEK) filament.
First Advisor
Eduardo B. Tibayan
APA Citation
Bargo, R. Q., Nemis, J. N., & Siarot, W. D. (2023). Chitosan-based bioplastic 3D filament from Talaba (Magallana bilineata) shells through heat extrusion process as a sustainable alternative to conventional filament: preparation, characterization, and FDM 3D printing. [Bachelor's thesis, De La Salle Medical and Health Sciences Institute]. GreenPrints. https://greenprints.dlshsi.edu.ph/bch/111