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Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
Graphene Oxide (GO) Impregnation of Polyamide-Based Composites Enhances Thermal Conductivity After Selective Laser
Viktoria A Koshlakova1, Andrey A Stepashkin2, Valter Maurino3,4
1Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology "MISIS", 119049 Moscow, Russia.
Abstract:
Selective laser sintering (SLS) is an additive manufacturing method that enables the creation of complex-shaped polymer-based structures with great control over the desired properties. In this study, polyamide 12 (PA12)-based powders containing 0.8 wt.% graphene oxide (GO), introduced via a wet-mixing impregnation method, were processed by selective laser sintering (SLS). Implementation of a double laser scanning strategy increased the tensile strength of the composites by 2.5% relative to pristine SLS-processed PA12 and enhanced the thermal conductivity to 0.74 W·m-1·K-1. The results indicate that the laser sintering process is an effective approach to produce low filler content polymer-matrix composites with enhanced thermal properties while preserving mechanical integrity and maintaining electrical insulation behavior.
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