紫外照射季铵盐单体接枝改性丙纶非织造布及其吸附作用  

Quaternary Ammonium Monomer Grafting Polymerization Under Ultraviolet Irradiation and Adsorption of Polypropylene Nonwovens

作　　者：宋欢[1,2,3] 刘颖[4] 石小丽[1,5] 张洪波[1,2,3] 潘志娟[1,2,3] 朱新生[1,2,3] 

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215021 [2]现代丝绸国家工程实验室(苏州),江苏苏州215123 [3]南通苏州大学纺织研究院,江苏南通226004 [4]中国科技大学苏州研究院,江苏苏州215123 [5]苏州大学材料与化学化工部,江苏苏州215123

出　　处：《高分子材料科学与工程》2013年第7期52-55,共4页Polymer Materials Science & Engineering

摘　　要：基于紫外光照射引发甲基丙烯酰丙基三甲基氯化铵(MAPTAC)接枝改性赋予丙纶非织造布染料吸附功能。用红外光谱、热失重和扫描电镜等方法表征改性织物的微观结构、性能及吸附分离作用。结果表明,MAPTAC成功接入丙纶织物表面,改性织物对阴离子染料表现出优异的吸附分离性能。对于接枝率为89.6%的织物,当吸附时间为120min,在35℃、45℃和55℃时染料(20mg/L,50mL)去除率均大于95%。吸附染料的改性织物可用阳离子活性剂/乙醇解吸。重复吸附10次,每次吸附率仍达99%以上,改性后的织物可以重复使用。Using gamma-methacrylamidopropyl trimethyl ammonium chloride （MAPTAC） as initiator, the ultraviolet-irradiated grafting polymerization and dye adsorption of polypropylene nonwovens were carried out. The microstructure and properties of the resulted fabrics were characterized through Fourier transform infrared, thermogravimetry, and scanning electron microscopy. The results show that the quaternary ammonium monomer is successfully grafted onto the surface of polypropylene fabrics. The dye removals reach 95 % for the fabric with the grafting yield of 89.6 % at 35 ℃, 45℃and 50 ℃respectively. The desorption process of adsorbed fabric was realized by the sequential immersion of cationic surfactant-ethanol. The grafted fabrics can be applied for the dye adsorption repeatedly over l0 times with the dye removal degree over 99 % each.

关 键 词：聚丙烯无纺布 甲基丙烯酰丙基三甲基氯化铵 接枝 吸附 再生 

分 类 号：TQ342.62[化学工程—化纤工业]