石油化工2025，Vol.54Issue(10)：1379-1390,12.DOI:10.3969/j.issn.1000-8144.2025.10.001
有机磷/磷酸锆协效阻燃改性聚乳酸纤维的制备与性能
Preparation and properties of organic phosphorus and zirconium phosphate synergistic flame retardant modified polylactic acid fiber
摘要
Abstract
To address the flammability of poly(lactic acid)(PLA),a synergistic flame-retardant fiber system was developed using an organic phosphorus(OP)-based flame retardant and layered zirconium phosphate(ZrP),combined with an optimized melt-spinning and drawing process.The effects of the flame-retardant system and drawing conditions on fiber structure and properties were systematically investigated.The resulting PLA fibers exhibited balanced processability,flame retardancy,and mechanical performance.At OP and ZrP contents of 3.5%(w)and 0.5%(w),respectively,the composite PLA-3.5OP-0.5ZrP achieved a limiting oxygen index of 31.0%and a UL-94 V-0 rating.The peak heat release rate and total heat release were significantly reduced,while ignition time was markedly prolonged,indicating improved flame retardancy.Stress-induced crystallization was observed during fiber drawing in both neat PLA and PLA-3.5OP-0.5ZrP fibers.With increasing draw ratio,crystallinity,orientation,and tensile strength first increased and then decreased.At a draw ratio of 2.1,the flame-retardant fiber exhibited a crystallinity of 38.63%,orientation of 96.20%,and tensile strength of 3.2 cN/dtex,meeting most end-use requirements and demonstrating strong application potential.关键词
聚乳酸/有机磷阻燃剂/无机磷酸锆/物理共混/阻燃改性Key words
poly(lactic acid)/organic phosphorus flame retardant/inorganic zirconium phosphate/melt blending/flame-retardant modification分类
化学工程引用本文复制引用
张志浩,徐启贤,俞森龙,相恒学,朱美芳..有机磷/磷酸锆协效阻燃改性聚乳酸纤维的制备与性能[J].石油化工,2025,54(10):1379-1390,12.基金项目
山东省重点研发计划(重大科技创新工程)项目(2023CXGC010611) （重大科技创新工程）
河南省重大科技专项(231100320200) （231100320200）
中央高校基本科研业务费专项(CUSFDH-T-2023005). （CUSFDH-T-2023005）
