نوع مقاله : مقاله پژوهشی
نویسندگان
1 پژوهشگاه پلیمر
2 دانشگاه صنعتی اصفهان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study systematically investigated the synergistic effects of a chain extender (CE), nanoclay (C30B), and a flame retardant (FR) on the properties of recycled PET (rrPET) fibers. Four formulations—virgin PET, CE-modified rrPET (CE040), FR/nanoclay-modified rrPET (FRNC4500), and a ternary blend (FRNC4510)—were prepared via melt spinning. Rheological analysis showed that CE significantly increased melt viscosity and improved spinnability, while FRNC4500 exhibited higher yield stress. Morphological studies indicated that nanoclay enhanced additive dispersion and created microstructural heterogeneities that promoted dye diffusion. Dyeing tests revealed that the ternary system FRNC4510 achieved colorimetric values and color strength (K/S) comparable to virgin PET, with a low color difference (ΔE*ab < 2) and superior color fastness. The results demonstrate that additive synergy can effectively restore, and even enhance, the dyeability of rrPET fibers, providing a viable strategy for producing high-performance recycled polyester textiles.
کلیدواژهها [English]