Renewable PLA/PHBV Blend-Based Graphene Nanoplatelets and Carbon Nanotube Hybrid Nanocomposites for Electromagnetic and Electric-Related Applications
Source abstract
Abstract
In response to the growing demand for multifunctional and eco-friendly materials, biodegradable polymers are gaining prominence in electronic nanocomposites. This study explores the addition of graphene nanoplatelets (GNP) and multiwall carbon nanotubes (MWCNT) to enhance the electrical and electromagnetic properties of poly(lactic acid) (PLA) and poly(3-hydroxybutyrate- co -3-hydroxyvalerate) (PHBV) blends. Nanocomposites with improved performance were fabricated by utilizing solvent-free melt-processing methods (extrusion and injection molding). Specifically, 1 wt % MWCNT and 3 wt % GNP (1/3 (MWCNT/GNP)) exhibited exceptional properties with minimal nanomaterial content, achieving an electrical conductivity exceeding 10 –4 S/cm, making it ideal for antistatic packaging. Our simulated and experimentally validated reflection loss (RL) values, reaching −29 dB with a bandwidth of 2.78 GHz, suggest its potential as a microwave absorbent. These results expand the applications of PLA and PHBV in sustainable technologies, offering renewable and biodegradable solutions for various industrial sectors.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Natural Fiber Reinforced Composites · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate Program in Materials Science and Engineering, Federal University of São Carlos (UFSCar), Rodovia Washington Luís, Km 235, São Carlos, SP 13565-905, Brazil
Department of Science and Technology, Polymer and Biopolymer Technology Laboratory (TecPBio), Federal University of São Paulo (UNIFESP), 330 Talim St., São José dos Campos, SP 12231-280, Brazil
Department of Materials Engineering, Federal University of São Carlos (UFSCar), Rodovia Washington Luís, Km 235, São Carlos, SP 13565-905, Brazil
Funding
Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico · Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo
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