烟蒂醋酸纤维在离子液体AMIMCl中的溶解与回收

Dissolving and Reclaiming Cellulose Acetate Tow from Cigarette Butts in Ionic Liquid

摘要: 为了回收烟蒂的醋酸纤维(CA),用氯代1-烯丙基-3-甲基咪唑(AMIMCl)离子液进行了溶解和回收烟蒂CA试验。结果表明:①适宜的溶解温度137℃,溶解时间70min,在此条件下,20gAMIMCl可溶解0.76gCA;②纯CA与回收品的FT-IR谱图一致;③AMIMCl离子液体可以循环使用5次。

Abstract: In order to reclaim cellulose acetate tow(CA)from cigarette butts,an experiment on dissolving and reclaiming CA in 1-allyl-3-methyl imidazole chloride ionic liquid(AMIMCl)was conducted.The result showed that:1)appropriate dissolving temperature and time were 137℃ and 70 minutes,under which 20 gAMIMCl could dissolve 0.76 g CA;2)the infrared spectrograph of pure CA agreed with that of reclaimed product;3)AMIMCl ionic liquid could be used repeatedly for 5 times.