森林工程2025，Vol.41Issue(4)：723-731,9.DOI:10.7525/j.issn.1006-8023.2025.04.007
聚乙二醇处理对杞柳软化效果的影响
Effect of PEG Treatment on the Softening of Salix integra
摘要
Abstract
Salix integra is an valuable raw material in the wickerwork industry with high economic value.However,when Salix integra is stored for extended periods,it often experiences splitting during weaving,which negatively affects production efficiency and resource utilization.In this study,polyethylene glycol(PEG)with molecular weights ranging from 600 to 6000 were used as modifiers to soften Salix integra through a vacuum impregnation process at a concentration of 20%.The effects of different PEG molecular weights on the physical and mechanical properties,chemical structure,micro morphology,and thermal stability of Salix integra were analyzed.The results demonstrated that vacuum impregna-tion PEG modification significantly improved the bending properties of Salix integra,with the most notable effect ob-served for the lower molecular weight PEG.After treatment with PEG600,the weight percentage rate and density of the Salix integra increased substantially,while its rigidity decreased and flexibility was markedly enhanced.Notably,the material exhibited exceptional resistance to splitting,as no breakage occurred even when the bending strain exceeded three times that of untreated Salix integra.This improved performance was attributed to the more effective penetration of lower molecular weight PEG into the Salix integra,which formed additional hydrogen bonds with the hydroxyl groups in cellulose fibers,thereby enhancing the bending properties of Salix integra.Furthermore,PEG modification also en-hanced the thermal stability of Salix integra.In conclusion,PEG600 was the most effective modifier for softening Salix integra.This method can provide superior performance support for the utilization of Salix integra in wickerwork and other applications.关键词
杞柳/聚乙二醇/软化处理/弯曲性能/热稳定性Key words
Salix integra/polyethylene glycol/softening treatment/bending properties/thermal stability分类
农业科技引用本文复制引用
尉家健,朱志鹏,迟祥,程万里..聚乙二醇处理对杞柳软化效果的影响[J].森林工程,2025,41(4):723-731,9.基金项目
中央高校基本科研业务费专项资金项目(2572023AW54). （2572023AW54）
