Effect of heat stabilizer content on the gel characteristic of the modified-recycled PET for 3D printing filament applicationNismar Parneam, Siriorn Isarankura Na Ayutthaya and Nathapong SukhawipatE3S Web Conf., 610 (2025) 01005DOI: https://doi.org/10.1051/e3sconf/202561001005