Effect of Plasticizer on Malleability of Polylactide-Based Craniomaxillofacial Fracture Fixation Plates

• Published in: AIP Conference Proceedings
• Main Author: Koesoemowidodo R.S.A.; Pangesty A.I.; Whulanza Y.; Supriadi S.; Chalid M.; Sunarso; Abdullah A.H.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85188418740&doi=10.1063%2f5.0198680&partnerID=40&md5=2538a1041b6a37ab83a3b07e9fc3804a

In this study, the effect of plasticization on the malleability of polylactide-based implant plates in craniomaxillofacial bone fracture application was studied. Specimens were synthesized by adding a plasticizer with a concentration of 2wt% in a mixture of PLLA and PDLLA (70:30). The mixing process was carried out by rheo-mixing, and the forming process was utilized in a vacuum oven. Specimens were characterized to determine their properties. The addition of glycerol and PEG 400 plasticizer influenced the shift in the absorbance of the infrared spectra. Furthermore, the plasticizer lowered the glass transition temperature (Tg) from 62.3°C to 58.5°C. The bending strength, bending strain, and modulus of elasticity of the specimens were also reduced. Microstructural analysis evaluation showed that the mixture was miscible. The results of the degradation test showed that the plasticized specimen 30PDLLA/glycerol underwent a degradation process with the smallest portion. © 2024 American Institute of Physics Inc.. All rights reserved.