| 曾贺扬,肖玉英,储生泽,郭启愚,王园缘,师莉升,李海龙.桑科韧皮纤维的结构特征与力学性能研究[J].中国造纸,2025,44(12):90-97 |
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| 桑科韧皮纤维的结构特征与力学性能研究 |
| Study on the Structural Characteristics and Mechanical Properties of Moraceae Phloem Fibers |
| 收稿日期:2025-06-08 修订日期:2025-07-14 |
| DOI:10.11980/j.issn.0254-508X.2025.12.009 |
| 关键词: 桑科 韧皮纤维 纤维形态 零距抗张强度 |
| Key Words:moraceae phloem fibers fiber morphology zero-span tensile strength |
| 基金项目:国家科技基础资源调查专项(2019FY100900)。 |
| 作者 | 单位 | 邮编 | | 曾贺扬* | 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 |
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| 摘要:本研究以桑、华桑、鸡桑、雅榕和异叶榕5种桑科韧皮纤维为研究对象,对比分析了其形态结构、结晶特性及力学性能。结果表明,5种桑科韧皮纤维均呈细长结构,其中桑韧皮纤维的平均长度最大(3.02 mm)、纤维长宽比最高(123);5种桑科韧皮纤维的密度分布在1.47~1.65 g/cm3之间,均具有较高的结晶度(>80%),其中雅榕韧皮纤维的结晶度高达87.42%。5种桑科韧皮纤维的零距抗张指数差异较大,其中桑韧皮纤维的干法零距抗张指数最高(94.0 N·m/g),华桑韧皮纤维的湿法零距抗张指数最高(62.2 N·m/g)。综合考量形态结构与力学性能,桑韧皮纤维和华桑韧皮纤维表现较为突出,是制浆造纸行业中较优的原料。 |
| Abstract:This study focused on the analysis of the morphological structure, crystalline characteristics, and mechanical properties of the five moraceae phloem fibers (Morus alba, Morus cathayana, Morus australis, Ficus concinna, Ficus heteromorpha). The results indicated that all five moraceae phloem fibers exhibited slender structures, among which the Morus cathayana phloem fiber had the maximum average length (3.02 mm) and the highest aspect ratio (123). The density of these five moraceae phloem fibers ranged from 1.47 to 1.65 g/cm³, all demonstrating high crystallinity (>80%), with the crystallinity of Ficus concinna phloem reaching as high as 87.42%. Significant differences were observed in their zero-span tensile indices. The Morus alba phloem fiber exhibited the highest dry zero-span tensile index (94.0 N·m/g), while the Morus cathayana phloem fiber showed the highest wet zero-span tensile index (62.2 N·m/g). Comprehensive evaluation of morphological structure and mechanical properties revealed that Morus alba and Morus cathayana phloem fibers demonstrated superior performance, establishing them as superior raw materials within the pulp and paper industry. |
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