【摘要】 为阐明超临界CO₂无水染色对涤纶长丝物化机械性能的影响,为涤纶超临界CO₂无水染色产品的开发提供依据,文章对超临界CO₂无水染色涤纶长丝与传统水染涤纶长丝的表面形貌、分子结构、结晶度、取向度、芯吸性能和拉伸性能进行了对比研究,结果表明,使用相同染料染色时,利用超临界CO₂无水染色加工的涤纶长丝晶体结构和主要官能团未发生变化,结晶度、热性能、拉伸性能与传统水染涤纶长丝基本一致,芯吸性能略低于传统水染涤纶长丝。更多还原

【Abstract】 In order to explore the effect of supercritical CO₂ anhydrous dyeing on the physicochemical and mechanical properties of polyester filament, and to provide a basis for the development of supercritical CO₂ anhydrous dyeing products, this paper carried out a comparative study on the surface morphology, molecular structure, crystallinity, orientation, wicking and tensile properties of supercritical CO₂ waterless dyed polyester fiber package yarn and traditional water dyed polyester fiber yarn. Results show that when dyeing with the same dyes, the crystal structure and main functional groups of the polyester filament dyed by supercritical CO2 anhydrous dyeing have not changed. And its crystallinity, thermal properties and tensile property of the polyester filament are basically the same with that of the traditional water-dyed polyester filament. But its wicking performance is slightly worse than traditional water-dyed polyester filaments.更多还原