title: Cellulose-based films prepared directly from waste newspapers via an ionic liquid.
abstract: Waste newspapers, composed of cellulose (>60wt%), lignin (∼15wt%), hemicellulose (∼10wt%) and other additives, are one kind of low-cost, easily collected and abundant resources. In order to get value-added products from this waste, in this work an attempt was made to directly convert waste newspapers into cellulose-based films by employing an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl) as a solvent. Most of the organic substances in this waste were dissolved quickly in AmimCl under mild conditions, and then coagulated and dried. Although containing lignin, hemicellulose and inorganic additives, the regenerated cellulose-based films were smooth, compact and semi-transparent, and exhibited good mechanical properties. If the newspaper/AmimCl solution was filtered to remove undissolved inorganic substances, the regenerated films became transparent and had a tensile strength of 80MPa. Thus, this work provides a new, simple and highly efficient way to achieve a high-valued utilization of waste newspapers for packaging and wrapping.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100039, China.
authors.forename: Guangmei
authors.initials: G
authors.lastname: Xia
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100039, China.
authors.forename: Jiqiang
authors.initials: J
authors.lastname: Wan
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China. Electronic address: zhjm@iccas.ac.cn.
authors.forename: Jinming
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Shandong Henglian New Materials Co.,Ltd., Weifang, 261061, Shandong, China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Shandong Henglian New Materials Co.,Ltd., Weifang, 261061, Shandong, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Xu
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Wu
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.
authors.forename: Jiasong
authors.initials: J
authors.lastname: He
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100039, China. Electronic address: jzhang@iccas.ac.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000498:Allyl Compounds / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D010209:Paper; D059027:Recycling / Q000379:methods*; D012997:Solvents / Q000737:chemistry
chemical_list: C544334:1-allyl-3-methylimidazolium; D000498:Allyl Compounds; D007093:Imidazoles; D052578:Ionic Liquids; D012997:Solvents; D002482:Cellulose; C012024:rayon, purified
keywords: Cellulose; Cellulose based film; Ionic liquid; Waste newspaper