李新才,肖玉英,储生泽,郭启愚,王园缘,师莉升,李海龙.6种荨麻科植物原料的化学组分、纤维形态结构及性能分析研究[J].中国造纸,2025,44(11):29-36 本文二维码信息
二维码(扫一下试试看!)
6种荨麻科植物原料的化学组分、纤维形态结构及性能分析研究
Analysis of Chemical Composition, Fiber Morphology and Properties of Six Urticaceae Plant Raw Materials
收稿日期:2025-04-16  修订日期:2025-05-21
DOI:10.11980/j.issn.0254-508X.2025.11.005
关键词:  荨麻科  组分分析  组织结构  纤维形态与性能
Key Words:Urticaceae  component analysis  anatomical structure  fiber morphology and properties
基金项目:国家科技基础资源调查专项(2019FY100900)。
作者单位邮编
李新才* 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
肖玉英 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
储生泽 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
郭启愚 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
王园缘 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
师莉升* 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640
华南理工大学前沿软物质学院,广东广州,510640 
510640
李海龙 华南理工大学造纸与污染控制国家工程研究中心,广东广州,510640 510640
摘要点击次数: 1229
全文下载次数: 643
摘要:对我国6种代表性荨麻科植物原料(水麻、长叶水麻、束序苎麻、大蝎子草、滇藏荨麻和红雾水葛)的化学组分、组织结构、纤维形态及性能进行了探讨与分析。结果表明,6种荨麻科原料的化学组分存在显著差异,其中水麻和滇藏荨麻的纤维素含量均>40%。束序苎麻和滇藏荨麻中的木质素紫丁香基(S)型与愈创木基(G)型结构单元的比例(S/G)较低,其余4种荨麻科原料木质素的S/G值均>1。此外,6种荨麻科原料均具有明显的胞腔结构,且具有较大的长宽比,其壁腔比分布在0.9~3.1。6种荨麻纤维的结晶度均>80%,微纤丝角在8°~33°范围内分布;纤维密度相近,分布在1.56~1.74 g/cm3。滇藏荨麻纤维抄造纸张的零距抗张指数最高,达84.4 kN·m/g,其余5种荨麻纤维抄造纸张的零距抗张指数分布在44.1~65.9 kN·m/g。
Abstract:This study investigated and analyzed the chemical composition, anatomical structure, fiber morphology, and mechanical properties of six representative Urticaceae plants in China, namely Boehmeria niveaBoehmeria longispicaBoehmeria pendulifloraPouzolzia zeylanicaUrtica laetevirens, and Debregeasia orientalis. The results showed that significant differences existed in the chemical composition among these six Urticaceae species. The cellulose contents of Boehmeria nivea and Urtica laetevirens were both above 40%. The syringyl-to-guaiacyl (S/G) ratios of lignin in Boehmeria penduliflora and Urtica laetevirens were relatively low, whereas that of the other four species exceeded 1. In addition, all six Urticaceae materials exhibited distinct lumen structures and relatively high aspect ratios, with wall-to-lumen ratios ranging from 0.9 to 3.1. The crystallinity of all six Urticaceae fibers exceeded 80%, with microfibril angles distributing between 8° and 33°, and fiber densities ranging from 1.56 to 1.74 g/cm³. Handsheet produced from Urtica laetevirens fibers exhibited the highest zero-span tensile index, which reached 84.4 kN·m/g, while those made from the other five fibers ranged from 44.1 to 65.9 kN·m/g.
查看全文   HTML   查看/发表评论  下载PDF阅读器