桑科韧皮纤维的结构特征与力学性能研究

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作者简介：，在读博士研究生；研究方向：植物资源的物理化学分析及应用。

关键词：桑科；韧皮纤维；纤维形态；零距抗张强度 中图分类号：TS721 文献标识码：A DOI： 10.11980/j.issn.0254-508X.2025.12.009

Studyon the Structural Characteristicsand Mechanical Properties of Moraceae Phloem Fibers

ZENG Heyang'XIAO Yuying1CHU Shengze1GUO Qiyu1WANG Yuanyuan’SHI Lisheng1.2*LI Hailong1

（1.NationalEngineingRsearchCnterofpeaindlutioControl，outhnaUesityfchologo GuangdongProvince，51064O;2.ScholofEmergentSoft Mater，South China UniversityofTechnology，Guangzhou， Guangdong Province，510640） （*E-mail：shls@scut. edu.cn）

Abstract：Thisstudyfocusedonteanalysisofthemrphologicalstructure，ystalineharacterists，ndmechanicalpropertisofte fivemoraceaeplomfibers（Morusalba，Moruscathayana，Morusustralis，icusconcinna，Ficusheteromorha）.Theresultsidicated thatallfive moraceaephofibersexibitedslenderstructures，mong hichtheMoruscathayanaphlomfiberhadthemaximumaverage length （3.02mm）and the highest aspectratio（123）.The densityof these five moraceaephloem fibers ranged from1.47 to 1.65g/cm3 ，all demonstrating high crystallinity （ >80% ），，withthe crystallinityof Ficusconcinnaphloem reachingashighas 87.42% .Significant differences wereobservedintheirzero-spantensileindices.TheMorusalbaphloemfiberexhibitedthehighestdryzero-spantensileindex（94.0N·m/g ） while the Morus cathayana phloem fiber showed the highest wet zero-span tensile index （62.2N⋅m/g ）.Comprehensive evaluation of morphological structureadmchnicalpropriesevealedtatMorusalbandMouscthaanaplofbersdmostratedsuperorpefoancestablisg them as superior raw materials within the pulp and paper industry.

ey words：moraceae；phloem fibers； fiber morphology；zero-span tensile strengtl

桑科植物种类繁多，广泛分布于全球热带和亚热带地区，涵盖约53属1400种。（剩余11303字）