金属离子(K^+、Na^+)阻燃纤维素纤维  

Flame Retardant Cellulose Fibers Modified by K^+ or Na^+

作　　者：高振华[1] 姚田田[1] 马腾飞[1] 谭利文[1] 徐冬梅[1] 纪全[1] 夏延致[1] 

机构地区：[1]青岛大学化学化工与环境学院,山东青岛266071

出　　处：《高分子材料科学与工程》2013年第5期146-148,共3页Polymer Materials Science & Engineering

基　　金：863计划重点项目(2010AA093701);教育部长江学者和创新团队发展计划(IRT0970)

摘　　要：通过极限氧指数、热失重分析等测试手段对含有甲酸钾和甲酸钠的纤维素纤维织物进行燃烧、热稳定性能表征,并对其阻燃机理进行探讨。通过极限氧指数测试,发现经两种金属离子处理过的纤维素纤维的阻燃效果明显优于普通纤维素纤维,由此推断钾和钠化合物具有阻燃作用;热失重分析结果表明,阻燃纤维素纤维的残炭量增加;钾离子和钠离子处理后的纤维素热解活化能有所降低。根据分析测试的结果,提出了对于纤维素材料的金属离子阻燃机理。The flame retardant properties and thermal stability of cellulose fibers containing different content of K^＋ and Na^＋ were studied by the limited oxygen index（LOI） and thermal gravimetric analysis. The flame-retardant mechanism was also studied. LOI results show that the flame-retardant effect of cellulose fibers containing K^＋ and Na4 is significantly superior to that of pure cellulose fibers, proving that K^＋ and Na^＋ may play the role of flame retardants. The result of thermal gravimetric analysis shows that the cellulose fibers containing K^＋ and Na^＋can produce more carbon residue. Comparing two kinds of cellulose fibers apparent activation energy after pyrolysis reaction, the pyrolysis activation energy of cellulose fibers containing K^＋ and Na^＋ decrease. Based on the above results, a metal ion flame-retardant mechanism on cellulose is proposed.

关 键 词：纤维素纤维 金属离子 阻燃 热稳定性 

分 类 号：TQ314.248[化学工程—高聚物工业]