摘要
通过赤藓糖醇与磷酸和尿素反应,合成赤藓糖醇磷酸铵(EPA),并将其作为一种新型无卤阻燃剂,以双氰胺为催化剂,通过浸渍焙烘工艺整理到Lyocell纤维上,制得EPA-Lyocell阻燃纤维。EPA-Lyocell的极限氧指数(LOI)达到45.3%,远高于纯Lyocell纤维的17%,阻燃效果明显。EPA-Lyocell纤维经过20次水洗循环后,LOI为39.2%,以20 g/L的碳酸钠溶液洗涤20次后,LOI仍能达到34.3%,可作为一种具有优异耐久性的Lyocell阻燃纤维。
Through the reaction of erythritol with phosphoric acid and urea,erythritol phosphate ammonium(EPA)is synthesized and used as a new type of halogen-free flame retardant.Using melamine as a catalyst,EPA is attached onto Lyocell fibers by impregnation and baking process to produce EPA-Lyocell flame retardant fibers.The limiting oxygen index(LOI)of EPA-Lyocell reaches 45.3%,which is significantly higher than 17% for pure Lyocell fibers,showing obvious flame retardant effect.After 20 cycles of water washing,the LOI of EPA-Lyocell fibers is 39.2%.Even after washing with a sodium carbonate solution of 20 g/L for 20 times,the LOI can still reach 34.3%,making it flame retardant Lyocell fibers with excellent durability.
作者
周兰阳
叶小波
方斌
孙义民
ZHOU Lan-yang;YE Xiao-bo;FANG Bin;SUN Yi-min(Hubei Key Laboratory of Plasma Chemistry and Advanced Materials,Wuhan Institute of Technology,Wuhan 430205,China;Dangyang Hongyang New Material Technology Co.,Ltd,Dangyang 444100,China)
出处
《高分子通报》
CAS
CSCD
北大核心
2024年第1期96-104,共9页
Polymer Bulletin
基金
湖北省重点研发计划项目(科技创新助企纾困类,项目号2022BAD009)
武汉工程大学研究生教育创新基金(基金号CX2022236)。
关键词
LYOCELL纤维
赤藓糖醇磷酸铵
阻燃纤维
耐碱洗
Lyocell fibers
Erythritol phosphate ammonium
Flame retardant fibers
Alkali washing resistance
