| 合成条件对木质碳纤维纺丝液结构的影响 |
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| 引用本文： | 马晓军,袁澄,杨红梅,于丽丽.合成条件对木质碳纤维纺丝液结构的影响[J].西北林学院学报,2012,27(5):194-196,200. |
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| 作者姓名： | 马晓军 袁澄 杨红梅 于丽丽 |
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| 作者单位： | 天津科技大学包装与印刷工程学院,天津,300222 |
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| 基金项目： | 林业公益性行业科研专项(201004057);国家自然科学基金项目(30901133);博士后特别资助项目(201104304) |
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| 摘 要： | 以木材苯酚液化物为原料,加入六次甲基四胺合成可用于制备木质碳纤维的纺丝液。利用FTIR考察了合成条件对纺丝液分子结构的影响。结果表明,液固比及升温时间的增加,木材液化物纺丝液红外光谱3 425～3 406cm-1羟基、1 595～1 512cm-1苯环骨架振动特征吸收峰都逐渐减弱,纺丝液分子内形成亚甲基键桥,分子结构初步形成交联结构,但液固比相比升温时间对纺丝液结构的影响要明显。另外,上述区域的吸收峰在合成温度为120℃时减弱达到最大,超过120℃时,木材液化物纺丝液红外光谱随温度的增加变化不大。
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| 关 键 词： | FTIR 木质碳纤维 纺丝液 化学基团 合成条件 |
Effect of Synthesis Conditions on the Structure of Spinning Solutions for Preparing Wood-based Carbon Fibers |
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| MA Xiao-jun
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YUAN Cheng
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YANG Hong-mei
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YU Li-li.Effect of Synthesis Conditions on the Structure of Spinning Solutions for Preparing Wood-based Carbon Fibers[J].Journal of Northwest Forestry University,2012,27(5):194-196,200. |
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| Authors: | MA Xiao-jun YUAN Cheng YANG Hong-mei YU Li-li |
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| Institution: | (College of Packaging & Printing Engineering,Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | The spinning solution for preparing wood-based carbon fiber was synthesized from liquefied wood in phenol by adding hexamethylenetetramine(HMTA) as a synthetic agent.The changes of chemical groups of the spinning solutions obtained under the various synthetic conditions were investigated by FTIR spectroscopy.The results showed that the intensity of absorption peaks at 3 425-3 406 cm-1 assigned to O-H stretching band and at 1 632 and 1 454 cm-1 assigned to the characteristic vibrations of aromatic ring gradually weaken with increasing the phenol/wood ratio and heating time,which were attributed to the formation of methylene bridge and the crosslinkage of spinning solution.Effect of the phenol/wood ratio on the structure of spinning solution was more significant than heating time.It was also found that these absorption peaks of spinning solution decreased maximally at the synthetic temperature of 120℃,but the changes of chemical groups of the spinning solution was not obvious above 120℃. |
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| Keywords: | FTIR wood-based carbon fiber spinning solution chemical group synthetic condition |
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