棉纺织技术2025，Vol.53Issue(12)：1-7,7.DOI:10.26967/j.issn1000-7415.202407028
酸性改性造纸浆用于Lyocell纤维浆粕的研究
Study on acid modified paper pulp used for Lyocell fiber pulp
摘要
Abstract
In order to make paper pulp meet Lyocell fiber pulp demand,expand pulp sources,hardwood,coniferous and and bamboo paper pulp were modified by acid sulfite boiling and steaming.The chemcial composition,polymerization degree,rheological property and solubility in N-methylmorpholine-N-oxide(NMMO)of the three kinds of modified pulps were tested,and the mechanical property of Lyocell fiber prepared were evaluated.The results showed that the polymerization degree of the three modified pulps were decreased to 600～700,and the content of lignin,ash,iron ion and copper ion in the modified pulps were reduced compared with the paper pulps.The dissolution time of the modified pulps in NMMO was significantly shortened,the dissolution performance was improved.The spinnability of the modified pulps was excellent,dry breaking strength of the prepared Lyocell fiber was 3.29 cN/dtex～3.97 cN/dtex,the dry breaking elongation rate was 10.79%～11.92%.The fiber wet strength was larger than 2.80 cN/dex,the fiber wet modulus was larger than 0.75 cN/dtex.It is considered that acid sulfite modification can be used in preparing pulp for Lyocell fiber,the mechanical property of prepared Lyocell fiber was better,which could meet requirements for qualified short fiber standards.关键词
酸性亚硫酸盐/Lyocell纤维/改性浆/溶解性能/流变性能/纤维性能Key words
acid sulfite/Lyocell fiber/modified pulp/dissolution property/rheological property/fiber property分类
轻工纺织引用本文复制引用
刘龙飞,王欣奇,薛振军,邵颖,程春祖,徐纪刚..酸性改性造纸浆用于Lyocell纤维浆粕的研究[J].棉纺织技术,2025,53(12):1-7,7.基金项目
通用技术集团科技重大专项(GTZD-2023-001) （GTZD-2023-001）
