棉秆纤维/角蛋白在离子液体中的溶解与再生

Dissolution and regeneration of cotton stalk fiber/keratin in ionic liquid

研究了农业废弃物棉秆和废旧羊毛在离子液体1-乙基-3-甲基咪唑醋酸盐和1-丁基-3-甲基咪唑氯盐中的溶解规律,最终确定了棉秆纤维及羊毛在EmimAC和BmimCl中的溶解条件,分别为120℃、700min和100℃、600min。将完全溶解的纤维素溶液及角蛋白溶液按照不同比例混合,制备了成分比例不同的再生膜。对膜进行了表征,结果表明,膜的结构中,纤维素作为骨架,角蛋白分散在其中,共混膜内含有纤维素及角蛋白两种成分。

Dissolution of cotton stalk and scrap wool in ionic liquid 1-ethyl-3-methylimidazolium acetate （EmimAC） and 1-butyl-3-methylimidazolium chloride （BmimCl） were studied, and the optimal dissolution conditions in EmimAC and BmimCl were 120 ℃/700 min and 100 ℃/600 min respectively. The completely dissolved cellulose and keratin were mixed in different proportions, and regenerate membranes were characterized. The structure of the film was cellulose as a skeleton, keratin dispersed, the blend membrane containing cellulose and keratin two ingredients.