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研究了易燃棉纤维织物无卤无甲醛绿色阻燃的新方法.采用化学接枝法在氮气保护下,于硝酸介质中以硝酸铈铵为引发剂,将丙烯酸接枝到棉纤维织物上,再经过离子交换后得到羧酸盐化的棉纤维织物.采用FTIR、SEM、LOI和TG等对羧酸盐化的棉纤维织物结构和阻燃性能进行了研究.结果表明:经羧酸盐化的棉纤维织物,燃烧后表面碳层变得更加致密,残碳率和极限氧指数明显升高,氧指数由18.1(易燃)增至30.3(难燃),棉织物的阻燃性大大增加.羧酸盐化的阻燃棉纤维织物无卤无甲醛,完全燃烧产物为二氧化碳和水,对环境无二次危害.“,”A new halogen and formaldehyde free flame retarding method for flammable cotton fiber fabric is studied.By chemical grafting method under nitrogen protection, in nitric acid medium with ammonium ceric nitrate as initiator, the acrylic is grafted onto the cotton fabric, then the car-boxylate salinized cotton fiber fabric is got after ion exchange.The structure and flame retardance of the carboxylate salinized cotton fiber fabric is in-vestigated by FTIR, SEM, LOI and TG tests. The results show that the surface carbon layer of the carboxylate salinized cotton fiber fabric becomes more densely, the carbon residue rate and limit oxygen index also increases significantly after combustion. The oxygen index increases from 18.1 (flammable)to 30.3(flame retardant).The flame retardance of cotton fiber fabric has improved greatly.The flame retardant the carboxylate salinized cotton fabric is halogen and formaldehyde free, and its complete combustion product is carbon dioxide and water without secondary harm to the envi-ronment.