Design and Thermal Performance of 3D‐Printed Thermochromic Stirrer Systems Using Silk Fibroin–Graphene Nanoplatelet Bio‐Nano Composites via FDM and SLA

The current work examines the design and thermal behavior of thermochromic stirring systems produced using hybrid additive manufacturing methods, specifically fused deposition modeling (FDM) and stereolithography (SLA). A bio‐nano composite containing silk fibroin and graphene nanoplatelets was integrated into polymer matrices to improve thermal conductivity and temperature‐responsive performance. The stirrer shaft was created using SolidWorks 2025 and evaluated through thermal simulations performed in ANSYS 2025 R2 to analyze temperature distribution along its length. FDM‐fabricated samples with surface‐applied thermochromic coatings were compared with SLA‐fabricated samples containing fully integrated composite materials. The results show that adding graphene nanoplatelets enhances thermal transport, while silk fibroin improves dispersion and structural integrity. The hybrid composite system exhibited quicker temperature response and more uniform heat distribution compared with traditional polymer‐based stirrers. The study emphasizes the benefits of integrating bio‐derived materials with nano‐fillers in additive manufacturing to create efficient thermochromic systems. The proposed strategy provides enhanced performance for applications in laboratory mixing, thermal monitoring, and sustainable smart material systems.