Performances of ramie fiber pretreated with dicationic imidazolium ionic liquid
Performances of ramie fiber pretreated with dicationic imidazolium ionic liquid
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DOI：
10.1007/s12221-014-0226-8
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发表时间：
2014-02
影响因子：
2.5
通讯作者：
Ling-hua Zhuang;Chunling Zheng;Jie Sun;Ailin Yuan;Guo-wei Wang
中科院分区：
文献类型：
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作者：
Ling-hua Zhuang;Chunling Zheng;Jie Sun;Ailin Yuan;Guo-wei Wang
用核磁共振氢谱和元素分析确定了新型双子阳离子咪唑类离子液体3，3‘-[1，2-乙二基双(oxy-2，1-ethanediyl)]-bis[1-methyl-imidazolium]-dibromide(PEG150-DIL)]的化学结构。然后，用聚乙二醇150-DIL对苎麻纤维进行前处理。用FT-IR、X射线衍射仪、DSC-TG和FE-SEM对改性后的苎麻纤维进行了表征。最后，研究了经PEG150-DIL处理后的苎麻纤维的力学性能和染色性能。PEG150-Dil改性的最佳条件是在100℃下反应30min。随着PEG150-DIL作用时间的延长和温度的升高，其色泽强度明显增强。随着前处理时间的延长和温度的升高，经PEG150-DIL处理的苎麻纤维的拉伸强度和强力保留率下降。在最佳的PEG150-Dil前处理条件下(100℃，30min)，拉伸强度保留率为86.20%。
The chemical structure of a new gemini dicationic imidazolium ionic liquid, 3,3′-[1,2-ethanediylbis (oxy-2,1-ethanediyl)]-bis[1-methyl-imidazolium]-dibromide (PEG150-DIL) was established by1H-NMR and elemental analyses. Then, PEG150-DIL was applied to pretreat ramie fiber. PEG150-DIL treated ramie fiber was characterized by FT-IR, XRD, DSC-TG and FE-SEM. Finally, the mechanical and dyeing properties of PEG150-DIL pretreated ramie fibers were studied. The optimum condition of PEG150-DIL modification was carried out at 100 °C for 30 min. The color strength increased obviously with the duration time and temperature of the PEG150-DIL. The tensile strength and strength retention of PEG150-DIL -treated ramie fibers decreased with the increase of pretreating time and temperature. The tensile strength retention was 86.20 % under optimal PEG150-DIL pretreating condition (100 °C, 30 min).