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近年来,高粘度聚酯技术在两大热门市场——包装材料和产业用纤维的促进下不断进步,新型固相与液相缩聚工艺制备高粘度聚酯技术取得了长足进展。其中,新型固相缩聚、无SSP高粘度聚酯以及高粘度PET熔体直接成形或直纺等新技术都已投入工业化生产。与常规连续聚合、固相聚合等工艺相比,它们在投资/产能比、能耗、原料消耗、人力成本和生产弹性等方面具有明显的优势。
In recent years, high-viscosity polyester technology in two popular markets - the promotion of packaging materials and industrial fibers continue to progress, the new solid-phase and liquid-phase polycondensation technology to make high-viscosity polyester technology has made considerable progress. Among them, the new solid-state polycondensation, high-viscosity polyester without SSP and high-viscosity PET melt direct forming or direct spinning and other new technologies have been put into industrial production. Compared with conventional continuous polymerization, solid-phase polymerization and other processes, they have obvious advantages in investment / production ratio, energy consumption, raw material consumption, labor costs and production flexibility.