Dynamic mechanical analysis of 3D printed carbon fiber reinforced polylactic acid composites

The steady increase in the amount of power per unit volume in electrical and microelectronics items results in unavoidable overheating issues, which decreases the functional performance as well as the device's life span. Producing high-performance materials from renewable resources is one of the funda-mental goals of materials research. Bio-composites have been identified as viable option for developing a new port folio of innovative materials with improved thermal performance. This research article focuses on the development and effect of annealing of maleic anhydride (Mah) grafted polylactic acid (Mah-g-PLA) and carbon fiber (CF) reinforced Mah-g-PLA (CF/ Mah-g-PLA) by fused filament deposition. The dynamic mechanical analysis was studied by dynamic mechanical analyzer. The incorporation of surface modified PLA enhanced the storage and loss modulus of CF reinforced-Mah-g-PLA composites, according to the findings. When the Mah-g-PLA was used, the CFs were well disseminated in the PLA matrix, and the interfacial compatibility between CFs and PLA was enhanced, according to fractographs taken using a scanning electron microscope. As a result, the modification of grafted PLA with Mah compatibilizer could enhance the interfacial adhesion CF/Mah-g-PLA and improved the dynamic mechanical properties of the composites.Copyright (c) 2022 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the Third International Con-ference on Recent Advances in Materials and Manufacturing 2021.