不同交联类型Lyocell纤维的溶解体系  

Dissolving system for Lyocell fiber with different crosslinked types

作　　者：陈万明 王卫明 王力 陈红霞[2] 范雪荣[2] CHEN Wanming;WANG Weiming;WANG Li;CHEN Hongxia;FAN Xuerong(Zhejiang Haoyu Technology Co.,Ltd.,Shaoxing 312369,China;Key Laboratory of Science and Technology of Eco-Textile,Ministry of Education,Jiangnan University,Wuxi 214122,China)

机构地区：[1]浙江灏宇科技有限公司,浙江绍兴312369 [2]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《印染》2023年第9期67-70,共4页China Dyeing and Finishing

摘　　要：探究不同交联类型Lyocell纤维在铜乙二胺、氯化锂/N,N-二甲基乙酰胺(LiCl/DMAc)、1-烯丙基-3-甲基氯化咪唑/二甲基亚砜([AMIM]Cl/DMSO)、硫氰化钾/乙二胺(KSCN/EDA)、NaOH/尿素/水等体系中的溶解情况,发现G100纤维能够在铜乙二胺体系、LiCl/DMAc体系以及[AMIM]Cl/DMSO体系中完全溶解,LF纤维只能在[AMIM]Cl/DMSO体系中完全溶解,而A100纤维能够在KSCN/EDA体系、NaOH/尿素/水体系以及[AMIM]Cl/DMSO体系中完全溶解,当溶解时长为72 h时,三种Lyocell纤维在[AMIM]Cl/DMSO体系中均能完全溶解。应用Lyocell纤维溶解体系,以绝对黏度为指标,证明了氢氧化钠处理对交联型Lyocell纤维交联的影响。By exploring the dissolution behavior of different cross-linked types of Lyocell fibers in various sol⁃vent systems such as copper ethylenediamine(CuEDA),lithium chloride/N,N-dimethylacetamide(LiCl/DMAc),1-vinyl-3-methylimidazolium chloride/dimethyl sulfoxide([AMIM]Cl/DMSO),potassium thiocyanate/ethylenedi⁃amine(KSCN/EDA),NaOH/urea/water,it is discovered that G100 fibers can be completely dissolved in the CuE⁃DA system,LiCl/DMAc system and[AMIM]Cl/DMSO system;LF fibers can only be completely dissolved in the[AMIM]Cl/DMSO system,while A100 fibers can be completely dissolved in the KSCN/EDA system,NaOH/urea/water system and[AMIM]Cl/DMSO system.All three types of Lyocell fibers can be dissolved completely in the[AMIM]Cl/DMSO system when the dissolution time is 72 h.By using the Lyocell fiber dissolution system and absolute viscosity as an indicator,the influence of sodium hydroxide treatment on cross-linked Lyocell fibers is demonstrated.

关 键 词：LYOCELL 纤维素溶解体系 绝对黏度 聚合度 碱处理 

分 类 号：TQ352.7[化学工程]